Merge pull request #43 from debuggerx01/master

Add 'where.raw(String whereSql)'

packages/orm/angel_orm/example/main.angel_serialize.g.part

@@ -1,67 +0,0 @@
-// **************************************************************************
-// JsonModelGenerator
-// **************************************************************************
-
-@generatedSerializable
-class Employee extends _Employee {
-  Employee(
-      {this.id,
-      this.firstName,
-      this.lastName,
-      this.salary,
-      this.createdAt,
-      this.updatedAt});
-
-  @override
-  final String id;
-
-  @override
-  final String firstName;
-
-  @override
-  final String lastName;
-
-  @override
-  final double salary;
-
-  @override
-  final DateTime createdAt;
-
-  @override
-  final DateTime updatedAt;
-
-  Employee copyWith(
-      {String id,
-      String firstName,
-      String lastName,
-      double salary,
-      DateTime createdAt,
-      DateTime updatedAt}) {
-    return new Employee(
-        id: id ?? this.id,
-        firstName: firstName ?? this.firstName,
-        lastName: lastName ?? this.lastName,
-        salary: salary ?? this.salary,
-        createdAt: createdAt ?? this.createdAt,
-        updatedAt: updatedAt ?? this.updatedAt);
-  }
-
-  bool operator ==(other) {
-    return other is _Employee &&
-        other.id == id &&
-        other.firstName == firstName &&
-        other.lastName == lastName &&
-        other.salary == salary &&
-        other.createdAt == createdAt &&
-        other.updatedAt == updatedAt;
-  }
-
-  @override
-  int get hashCode {
-    return hashObjects([id, firstName, lastName, salary, createdAt, updatedAt]);
-  }
-
-  Map<String, dynamic> toJson() {
-    return EmployeeSerializer.toMap(this);
-  }
-}

packages/orm/angel_orm/example/main.dart

@@ -1,18 +1,19 @@
 import 'dart:async';
 
+import 'package:angel3_migration/angel3_migration.dart';
 import 'package:angel3_orm/angel3_orm.dart';
 import 'package:angel3_serialize/angel3_serialize.dart';
 import 'package:optional/optional.dart';
 
 part 'main.g.dart';
-part 'main.serializer.g.dart';
 
 void main() async {
   var query = EmployeeQuery()
     ..where?.firstName.equals('Rich')
     ..where?.lastName.equals('Person')
+    ..where?.raw('COM.deleted = false')
     ..orWhere((w) => w.salary.greaterThanOrEqualTo(75000))
-    ..join('companies', 'company_id', 'id');
+    ..join('companies', 'company_id', 'id', alias: 'COM');
 
   var richPerson = await query.getOne(_FakeExecutor());
   if (richPerson.isPresent) {
@@ -31,7 +32,7 @@ class _FakeExecutor extends QueryExecutor {
     print(
         '_FakeExecutor received query: $query and values: $substitutionValues');
     return [
-      [1, 'Rich', 'Person', 100000.0, now, now]
+      [1, now, now, 'Rich', 'Person', 100000.0]
     ];
   }
 
@@ -50,65 +51,3 @@ abstract class _Employee extends Model {
 
   double? get salary;
 }
-
-class EmployeeQuery extends Query<Employee, EmployeeQueryWhere> {
-  @override
-  final QueryValues values = MapQueryValues();
-
-  EmployeeQueryWhere? _where;
-
-  EmployeeQuery() {
-    _where = EmployeeQueryWhere(this);
-  }
-
-  @override
-  EmployeeQueryWhere? get where => _where;
-
-  @override
-  String get tableName => 'employees';
-
-  @override
-  List<String> get fields =>
-      ['id', 'first_name', 'last_name', 'salary', 'created_at', 'updated_at'];
-
-  @override
-  EmployeeQueryWhere newWhereClause() => EmployeeQueryWhere(this);
-
-  @override
-  Optional<Employee> deserialize(List row) {
-    return Optional.ofNullable(Employee(
-        id: row[0].toString(),
-        firstName: row[1] as String,
-        lastName: row[2] as String,
-        salary: row[3] as double,
-        createdAt: row[4] as DateTime,
-        updatedAt: row[5] as DateTime));
-  }
-}
-
-class EmployeeQueryWhere extends QueryWhere {
-  EmployeeQueryWhere(EmployeeQuery query)
-      : id = NumericSqlExpressionBuilder(query, 'id'),
-        firstName = StringSqlExpressionBuilder(query, 'first_name'),
-        lastName = StringSqlExpressionBuilder(query, 'last_name'),
-        salary = NumericSqlExpressionBuilder(query, 'salary'),
-        createdAt = DateTimeSqlExpressionBuilder(query, 'created_at'),
-        updatedAt = DateTimeSqlExpressionBuilder(query, 'updated_at');
-
-  @override
-  Iterable<SqlExpressionBuilder> get expressionBuilders {
-    return [id, firstName, lastName, salary, createdAt, updatedAt];
-  }
-
-  final NumericSqlExpressionBuilder<int> id;
-
-  final StringSqlExpressionBuilder firstName;
-
-  final StringSqlExpressionBuilder lastName;
-
-  final NumericSqlExpressionBuilder<double> salary;
-
-  final DateTimeSqlExpressionBuilder createdAt;
-
-  final DateTimeSqlExpressionBuilder updatedAt;
-}

packages/orm/angel_orm/example/main.g.dart

@@ -2,6 +2,171 @@
 
 part of 'main.dart';
 
+// **************************************************************************
+// MigrationGenerator
+// **************************************************************************
+
+class EmployeeMigration extends Migration {
+  @override
+  void up(Schema schema) {
+    schema.create('employees', (table) {
+      table.serial('id').primaryKey();
+      table.timeStamp('created_at');
+      table.timeStamp('updated_at');
+      table.varChar('first_name', length: 255);
+      table.varChar('last_name', length: 255);
+      table.declareColumn(
+          'salary', Column(type: ColumnType('decimal'), length: 255));
+    });
+  }
+
+  @override
+  void down(Schema schema) {
+    schema.drop('employees');
+  }
+}
+
+// **************************************************************************
+// OrmGenerator
+// **************************************************************************
+
+class EmployeeQuery extends Query<Employee, EmployeeQueryWhere> {
+  EmployeeQuery({Query? parent, Set<String>? trampoline})
+      : super(parent: parent) {
+    trampoline ??= <String>{};
+    trampoline.add(tableName);
+    _where = EmployeeQueryWhere(this);
+  }
+
+  @override
+  final EmployeeQueryValues values = EmployeeQueryValues();
+
+  EmployeeQueryWhere? _where;
+
+  @override
+  Map<String, String> get casts {
+    return {'salary': 'text'};
+  }
+
+  @override
+  String get tableName {
+    return 'employees';
+  }
+
+  @override
+  List<String> get fields {
+    return const [
+      'id',
+      'created_at',
+      'updated_at',
+      'first_name',
+      'last_name',
+      'salary'
+    ];
+  }
+
+  @override
+  EmployeeQueryWhere? get where {
+    return _where;
+  }
+
+  @override
+  EmployeeQueryWhere newWhereClause() {
+    return EmployeeQueryWhere(this);
+  }
+
+  static Optional<Employee> parseRow(List row) {
+    if (row.every((x) => x == null)) {
+      return Optional.empty();
+    }
+    var model = Employee(
+        id: row[0].toString(),
+        createdAt: (row[1] as DateTime?),
+        updatedAt: (row[2] as DateTime?),
+        firstName: (row[3] as String?),
+        lastName: (row[4] as String?),
+        salary: double.tryParse(row[5].toString()));
+    return Optional.of(model);
+  }
+
+  @override
+  Optional<Employee> deserialize(List row) {
+    return parseRow(row);
+  }
+}
+
+class EmployeeQueryWhere extends QueryWhere {
+  EmployeeQueryWhere(EmployeeQuery query)
+      : id = NumericSqlExpressionBuilder<int>(query, 'id'),
+        createdAt = DateTimeSqlExpressionBuilder(query, 'created_at'),
+        updatedAt = DateTimeSqlExpressionBuilder(query, 'updated_at'),
+        firstName = StringSqlExpressionBuilder(query, 'first_name'),
+        lastName = StringSqlExpressionBuilder(query, 'last_name'),
+        salary = NumericSqlExpressionBuilder<double>(query, 'salary');
+
+  final NumericSqlExpressionBuilder<int> id;
+
+  final DateTimeSqlExpressionBuilder createdAt;
+
+  final DateTimeSqlExpressionBuilder updatedAt;
+
+  final StringSqlExpressionBuilder firstName;
+
+  final StringSqlExpressionBuilder lastName;
+
+  final NumericSqlExpressionBuilder<double> salary;
+
+  @override
+  List<SqlExpressionBuilder> get expressionBuilders {
+    return [id, createdAt, updatedAt, firstName, lastName, salary];
+  }
+}
+
+class EmployeeQueryValues extends MapQueryValues {
+  @override
+  Map<String, String> get casts {
+    return {'salary': 'decimal'};
+  }
+
+  String? get id {
+    return (values['id'] as String?);
+  }
+
+  set id(String? value) => values['id'] = value;
+  DateTime? get createdAt {
+    return (values['created_at'] as DateTime?);
+  }
+
+  set createdAt(DateTime? value) => values['created_at'] = value;
+  DateTime? get updatedAt {
+    return (values['updated_at'] as DateTime?);
+  }
+
+  set updatedAt(DateTime? value) => values['updated_at'] = value;
+  String? get firstName {
+    return (values['first_name'] as String?);
+  }
+
+  set firstName(String? value) => values['first_name'] = value;
+  String? get lastName {
+    return (values['last_name'] as String?);
+  }
+
+  set lastName(String? value) => values['last_name'] = value;
+  double? get salary {
+    return double.tryParse((values['salary'] as String));
+  }
+
+  set salary(double? value) => values['salary'] = value.toString();
+  void copyFrom(Employee model) {
+    createdAt = model.createdAt;
+    updatedAt = model.updatedAt;
+    firstName = model.firstName;
+    lastName = model.lastName;
+    salary = model.salary;
+  }
+}
+
 // **************************************************************************
 // JsonModelGenerator
 // **************************************************************************
@@ -10,63 +175,154 @@ part of 'main.dart';
 class Employee extends _Employee {
   Employee(
       {this.id,
+      this.createdAt,
+      this.updatedAt,
       this.firstName,
       this.lastName,
-      this.salary,
+      this.salary});
-      this.createdAt,
+
-      this.updatedAt});
+  /// A unique identifier corresponding to this item.
+  @override
+  String? id;
+
+  /// The time at which this item was created.
+  @override
+  DateTime? createdAt;
+
+  /// The last time at which this item was updated.
+  @override
+  DateTime? updatedAt;
 
   @override
-  final String? id;
+  String? firstName;
 
   @override
-  final String? firstName;
+  String? lastName;
 
   @override
-  final String? lastName;
+  double? salary;
-
-  @override
-  final double? salary;
-
-  @override
-  final DateTime? createdAt;
-
-  @override
-  final DateTime? updatedAt;
 
   Employee copyWith(
       {String? id,
+      DateTime? createdAt,
+      DateTime? updatedAt,
       String? firstName,
       String? lastName,
-      double? salary,
+      double? salary}) {
-      DateTime? createdAt,
-      DateTime? updatedAt}) {
     return Employee(
         id: id ?? this.id,
+        createdAt: createdAt ?? this.createdAt,
+        updatedAt: updatedAt ?? this.updatedAt,
         firstName: firstName ?? this.firstName,
         lastName: lastName ?? this.lastName,
-        salary: salary ?? this.salary,
+        salary: salary ?? this.salary);
-        createdAt: createdAt ?? this.createdAt,
-        updatedAt: updatedAt ?? this.updatedAt);
   }
 
   @override
   bool operator ==(other) {
     return other is _Employee &&
         other.id == id &&
+        other.createdAt == createdAt &&
+        other.updatedAt == updatedAt &&
         other.firstName == firstName &&
         other.lastName == lastName &&
-        other.salary == salary &&
+        other.salary == salary;
-        other.createdAt == createdAt &&
-        other.updatedAt == updatedAt;
   }
 
   @override
   int get hashCode {
-    return hashObjects([id, firstName, lastName, salary, createdAt, updatedAt]);
+    return hashObjects([id, createdAt, updatedAt, firstName, lastName, salary]);
+  }
+
+  @override
+  String toString() {
+    return 'Employee(id=$id, createdAt=$createdAt, updatedAt=$updatedAt, firstName=$firstName, lastName=$lastName, salary=$salary)';
   }
 
   Map<String, dynamic> toJson() {
     return EmployeeSerializer.toMap(this);
   }
 }
+
+// **************************************************************************
+// SerializerGenerator
+// **************************************************************************
+
+const EmployeeSerializer employeeSerializer = EmployeeSerializer();
+
+class EmployeeEncoder extends Converter<Employee, Map> {
+  const EmployeeEncoder();
+
+  @override
+  Map convert(Employee model) => EmployeeSerializer.toMap(model);
+}
+
+class EmployeeDecoder extends Converter<Map, Employee> {
+  const EmployeeDecoder();
+
+  @override
+  Employee convert(Map map) => EmployeeSerializer.fromMap(map);
+}
+
+class EmployeeSerializer extends Codec<Employee, Map> {
+  const EmployeeSerializer();
+
+  @override
+  EmployeeEncoder get encoder => const EmployeeEncoder();
+  @override
+  EmployeeDecoder get decoder => const EmployeeDecoder();
+  static Employee fromMap(Map map) {
+    return Employee(
+        id: map['id'] as String?,
+        createdAt: map['created_at'] != null
+            ? (map['created_at'] is DateTime
+                ? (map['created_at'] as DateTime)
+                : DateTime.parse(map['created_at'].toString()))
+            : null,
+        updatedAt: map['updated_at'] != null
+            ? (map['updated_at'] is DateTime
+                ? (map['updated_at'] as DateTime)
+                : DateTime.parse(map['updated_at'].toString()))
+            : null,
+        firstName: map['first_name'] as String?,
+        lastName: map['last_name'] as String?,
+        salary: map['salary'] as double?);
+  }
+
+  static Map<String, dynamic> toMap(_Employee? model) {
+    if (model == null) {
+      return {};
+    }
+    return {
+      'id': model.id,
+      'created_at': model.createdAt?.toIso8601String(),
+      'updated_at': model.updatedAt?.toIso8601String(),
+      'first_name': model.firstName,
+      'last_name': model.lastName,
+      'salary': model.salary
+    };
+  }
+}
+
+abstract class EmployeeFields {
+  static const List<String> allFields = <String>[
+    id,
+    createdAt,
+    updatedAt,
+    firstName,
+    lastName,
+    salary
+  ];
+
+  static const String id = 'id';
+
+  static const String createdAt = 'created_at';
+
+  static const String updatedAt = 'updated_at';
+
+  static const String firstName = 'first_name';
+
+  static const String lastName = 'last_name';
+
+  static const String salary = 'salary';
+}

packages/orm/angel_orm/example/main.serializer.g.dart

@@ -1,61 +0,0 @@
-// GENERATED CODE - DO NOT MODIFY BY HAND
-
-part of 'main.dart';
-
-// **************************************************************************
-// SerializerGenerator
-// **************************************************************************
-
-abstract class EmployeeSerializer {
-  static Employee fromMap(Map map) {
-    return Employee(
-        id: map['id'] as String?,
-        firstName: map['first_name'] as String?,
-        lastName: map['last_name'] as String?,
-        salary: map['salary'] as double?,
-        createdAt: map['created_at'] != null
-            ? (map['created_at'] is DateTime
-                ? (map['created_at'] as DateTime?)
-                : DateTime.parse(map['created_at'].toString()))
-            : null,
-        updatedAt: map['updated_at'] != null
-            ? (map['updated_at'] is DateTime
-                ? (map['updated_at'] as DateTime?)
-                : DateTime.parse(map['updated_at'].toString()))
-            : null);
-  }
-
-  static Map<String, dynamic> toMap(Employee model) {
-    return {
-      'id': model.id,
-      'first_name': model.firstName,
-      'last_name': model.lastName,
-      'salary': model.salary,
-      'created_at': model.createdAt?.toIso8601String(),
-      'updated_at': model.updatedAt?.toIso8601String()
-    };
-  }
-}
-
-abstract class EmployeeFields {
-  static const List<String> allFields = <String>[
-    id,
-    firstName,
-    lastName,
-    salary,
-    createdAt,
-    updatedAt
-  ];
-
-  static const String id = 'id';
-
-  static const String firstName = 'first_name';
-
-  static const String lastName = 'last_name';
-
-  static const String salary = 'salary';
-
-  static const String createdAt = 'created_at';
-
-  static const String updatedAt = 'updated_at';
-}

packages/orm/angel_orm/lib/src/query.dart

@@ -167,6 +167,7 @@ abstract class Query<T, Where extends QueryWhere> extends QueryBase<T> {
   void _makeJoin(
       tableName,
       Set<String>? trampoline,
+      String? alias,
       JoinType type,
       String localKey,
       String foreignKey,
@@ -182,7 +183,7 @@ abstract class Query<T, Where extends QueryWhere> extends QueryBase<T> {
     }
 
     var to = _compileJoin(tableName, trampoline);
-    var alias = _joinAlias(trampoline);
+    alias ??= _joinAlias(trampoline);
     if (tableName is Query) {
       for (var field in tableName.fields) {
         tableName.aliases[field] = '${alias}_$field';
@@ -199,8 +200,9 @@ abstract class Query<T, Where extends QueryWhere> extends QueryBase<T> {
   void join(tableName, String localKey, String foreignKey,
       {String op = '=',
       List<String> additionalFields = const [],
-      Set<String>? trampoline}) {
+      Set<String>? trampoline,
-    _makeJoin(tableName, trampoline, JoinType.inner, localKey, foreignKey, op,
+      String? alias}) {
+    _makeJoin(tableName, trampoline, alias, JoinType.inner, localKey, foreignKey, op,
         additionalFields);
   }
 
@@ -208,8 +210,9 @@ abstract class Query<T, Where extends QueryWhere> extends QueryBase<T> {
   void leftJoin(tableName, String localKey, String foreignKey,
       {String op = '=',
       List<String> additionalFields = const [],
-      Set<String>? trampoline}) {
+      Set<String>? trampoline,
-    _makeJoin(tableName, trampoline, JoinType.left, localKey, foreignKey, op,
+      String? alias}) {
+    _makeJoin(tableName, trampoline, alias, JoinType.left, localKey, foreignKey, op,
         additionalFields);
   }
 
@@ -217,8 +220,9 @@ abstract class Query<T, Where extends QueryWhere> extends QueryBase<T> {
   void rightJoin(tableName, String localKey, String foreignKey,
       {String op = '=',
       List<String> additionalFields = const [],
-      Set<String>? trampoline}) {
+      Set<String>? trampoline,
-    _makeJoin(tableName, trampoline, JoinType.right, localKey, foreignKey, op,
+      String? alias}) {
+    _makeJoin(tableName, trampoline, alias, JoinType.right, localKey, foreignKey, op,
         additionalFields);
   }
 
@@ -226,8 +230,9 @@ abstract class Query<T, Where extends QueryWhere> extends QueryBase<T> {
   void fullOuterJoin(tableName, String localKey, String foreignKey,
       {String op = '=',
       List<String> additionalFields = const [],
-      Set<String>? trampoline}) {
+      Set<String>? trampoline,
-    _makeJoin(tableName, trampoline, JoinType.full, localKey, foreignKey, op,
+      String? alias}) {
+    _makeJoin(tableName, trampoline, alias, JoinType.full, localKey, foreignKey, op,
         additionalFields);
   }
 
@@ -235,8 +240,9 @@ abstract class Query<T, Where extends QueryWhere> extends QueryBase<T> {
   void selfJoin(tableName, String localKey, String foreignKey,
       {String op = '=',
       List<String> additionalFields = const [],
-      Set<String>? trampoline}) {
+      Set<String>? trampoline,
-    _makeJoin(tableName, trampoline, JoinType.self, localKey, foreignKey, op,
+      String? alias}) {
+    _makeJoin(tableName, trampoline, alias, JoinType.self, localKey, foreignKey, op,
         additionalFields);
   }
 

packages/orm/angel_orm/lib/src/query_where.dart

@@ -5,6 +5,7 @@ abstract class QueryWhere {
   final Set<QueryWhere> _and = {};
   final Set<QueryWhere> _not = {};
   final Set<QueryWhere> _or = {};
+  final Set<String> _raw = {};
 
   Iterable<SqlExpressionBuilder> get expressionBuilders;
 
@@ -20,6 +21,10 @@ abstract class QueryWhere {
     _or.add(other);
   }
 
+  void raw(String whereRaw) {
+    _raw.add(whereRaw);
+  }
+
   String compile({String? tableName}) {
     var b = StringBuffer();
     var i = 0;
@@ -39,6 +44,11 @@ abstract class QueryWhere {
       }
     }
 
+    for (var raw in _raw) {
+      if (i++ > 0) b.write(' AND ');
+      b.write(' ($raw)');
+    }
+
     for (var other in _and) {
       var sql = other.compile();
       if (sql.isNotEmpty) b.write(' AND ($sql)');

packages/orm/angel_orm_postgres/test/all_test.dart

@@ -31,5 +31,6 @@ void main() {
         () =>
             manyToManyTests(pg(['user', 'role', 'user_role']), close: closePg));
     group('standalone', () => standaloneTests(pg(['car']), close: closePg));
+    group('join', () => joinTests(pg(['person', 'person_order']), close: closePg));
   });
 }

packages/orm/angel_orm_postgres/test/migrations/person.sql

@@ -0,0 +1,7 @@
+CREATE TEMPORARY TABLE "persons" (
+  "id" serial PRIMARY KEY,
+  "name" varchar(255),
+  "age" int,
+  "created_at" timestamp,
+  "updated_at" timestamp
+);

packages/orm/angel_orm_postgres/test/migrations/person_order.sql

@@ -0,0 +1,9 @@
+CREATE TEMPORARY TABLE "person_orders" (
+  "id" serial PRIMARY KEY,
+  "person_id" int not null,
+  "name" varchar(255),
+  "price" int,
+  "deleted" bool not null default false,
+  "created_at" timestamp,
+  "updated_at" timestamp
+);

packages/orm/angel_orm_test/lib/angel3_orm_test.dart

@@ -8,3 +8,4 @@ export 'src/has_one_test.dart';
 export 'src/many_to_many_test.dart';
 export 'src/standalone_test.dart';
 export 'src/performance_test.dart';
+export 'src/join_test.dart';

packages/orm/angel_orm_test/lib/src/join_test.dart

@@ -0,0 +1,81 @@
+import 'dart:async';
+import 'dart:math';
+
+import 'package:angel3_orm/angel3_orm.dart';
+import 'package:test/test.dart';
+
+import 'models/person.dart';
+import 'models/person_order.dart';
+
+void joinTests(FutureOr<QueryExecutor> Function() createExecutor,
+    {FutureOr<void> Function(QueryExecutor)? close}) {
+  late QueryExecutor executor;
+  Person? originalPerson;
+  PersonOrder? originalOrder1;
+  PersonOrder? originalOrder2;
+  close ??= (_) => null;
+
+  setUp(() async {
+    executor = await createExecutor();
+    var query = PersonQuery()
+      ..values.name = 'DebuggerX'
+      ..values.age = 29;
+    originalPerson = (await query.insert(executor)).value;
+
+    var orderQuery = PersonOrderQuery()
+      ..values.personId = originalPerson!.idAsInt
+      ..values.name = 'Order1'
+      ..values.price = 128
+      ..values.deleted = false;
+
+    originalOrder1 = (await orderQuery.insert(executor)).value;
+
+    orderQuery = PersonOrderQuery()
+      ..values.personId = originalPerson!.idAsInt
+      ..values.name = 'Order2'
+      ..values.price = 256
+      ..values.deleted = true;
+
+    originalOrder2 = (await orderQuery.insert(executor)).value;
+  });
+
+  tearDown(() => close!(executor));
+
+  test('select person with last order info', () async {
+    var orderQuery = PersonOrderQuery();
+    var query = PersonWithLastOrderQuery();
+    query.join(
+        orderQuery.tableName, PersonFields.id, PersonOrderFields.personId,
+        alias: 'po');
+    query.where?.name.equals(originalPerson!.name!);
+    query.orderBy('po.id', descending: true);
+    var personWithOrderInfo = await query.getOne(executor);
+    expect(personWithOrderInfo.value.lastOrderName, originalOrder2?.name);
+  });
+
+  test('select person with last valid order info', () async {
+    var orderQuery = PersonOrderQuery();
+    var query = PersonWithLastOrderQuery();
+    query.join(
+        orderQuery.tableName, PersonFields.id, PersonOrderFields.personId,
+        alias: 'po');
+    query.where?.name.equals(originalPerson!.name!);
+    query.orderBy('po.id', descending: true);
+    query.where?.raw('po.deleted = false');
+    var personWithOrderInfo = await query.getOne(executor);
+    expect(personWithOrderInfo.value.lastOrderName, originalOrder1?.name);
+  });
+
+  test('select orders with person info', () async {
+    var personQuery = PersonQuery();
+    var query = OrderWithPersonInfoQuery();
+    query.join(
+        personQuery.tableName, PersonOrderFields.personId, PersonFields.id,
+        alias: 'P');
+    query.where?.raw("P.name = '${originalPerson?.name}'");
+    var orders = await query.get(executor);
+    expect(orders.every((element) =>
+    element.personName == originalPerson?.name &&
+        element.personAge == originalPerson?.age), true);
+  });
+}

packages/orm/angel_orm_test/lib/src/models/book.g.dart

@@ -68,8 +68,6 @@ class BookQuery extends Query<Book, BookQueryWhere> {
   @override
   final BookQueryValues values = BookQueryValues();
 
-  List<String> _selectedFields = [];
-
   BookQueryWhere? _where;
 
   late AuthorQuery _author;
@@ -88,7 +86,7 @@ class BookQuery extends Query<Book, BookQueryWhere> {
 
   @override
   List<String> get fields {
-    const _fields = [
+    return const [
       'id',
       'created_at',
       'updated_at',
@@ -96,14 +94,6 @@ class BookQuery extends Query<Book, BookQueryWhere> {
       'partner_author_id',
       'name'
     ];
-    return _selectedFields.isEmpty
-        ? _fields
-        : _fields.where((field) => _selectedFields.contains(field)).toList();
-  }
-
-  BookQuery select(List<String> selectedFields) {
-    _selectedFields = selectedFields;
-    return this;
   }
 
   @override
@@ -116,23 +106,23 @@ class BookQuery extends Query<Book, BookQueryWhere> {
     return BookQueryWhere(this);
   }
 
-  Optional<Book> parseRow(List row) {
+  static Optional<Book> parseRow(List row) {
     if (row.every((x) => x == null)) {
       return Optional.empty();
     }
     var model = Book(
-        id: fields.contains('id') ? row[0].toString() : null,
+        id: row[0].toString(),
-        createdAt: fields.contains('created_at') ? (row[1] as DateTime?) : null,
+        createdAt: (row[1] as DateTime?),
-        updatedAt: fields.contains('updated_at') ? (row[2] as DateTime?) : null,
+        updatedAt: (row[2] as DateTime?),
-        name: fields.contains('name') ? (row[5] as String?) : null);
+        name: (row[5] as String?));
     if (row.length > 6) {
-      var modelOpt = AuthorQuery().parseRow(row.skip(6).take(4).toList());
+      var modelOpt = AuthorQuery.parseRow(row.skip(6).take(4).toList());
       modelOpt.ifPresent((m) {
         model = model.copyWith(author: m);
       });
     }
     if (row.length > 10) {
-      var modelOpt = AuthorQuery().parseRow(row.skip(10).take(4).toList());
+      var modelOpt = AuthorQuery.parseRow(row.skip(10).take(4).toList());
       modelOpt.ifPresent((m) {
         model = model.copyWith(partnerAuthor: m);
       });
@@ -242,8 +232,6 @@ class AuthorQuery extends Query<Author, AuthorQueryWhere> {
   @override
   final AuthorQueryValues values = AuthorQueryValues();
 
-  List<String> _selectedFields = [];
-
   AuthorQueryWhere? _where;
 
   @override
@@ -258,15 +246,7 @@ class AuthorQuery extends Query<Author, AuthorQueryWhere> {
 
   @override
   List<String> get fields {
-    const _fields = ['id', 'created_at', 'updated_at', 'name'];
+    return const ['id', 'created_at', 'updated_at', 'name'];
-    return _selectedFields.isEmpty
-        ? _fields
-        : _fields.where((field) => _selectedFields.contains(field)).toList();
-  }
-
-  AuthorQuery select(List<String> selectedFields) {
-    _selectedFields = selectedFields;
-    return this;
   }
 
   @override
@@ -279,15 +259,15 @@ class AuthorQuery extends Query<Author, AuthorQueryWhere> {
     return AuthorQueryWhere(this);
   }
 
-  Optional<Author> parseRow(List row) {
+  static Optional<Author> parseRow(List row) {
     if (row.every((x) => x == null)) {
       return Optional.empty();
     }
     var model = Author(
-        id: fields.contains('id') ? row[0].toString() : null,
+        id: row[0].toString(),
-        createdAt: fields.contains('created_at') ? (row[1] as DateTime?) : null,
+        createdAt: (row[1] as DateTime?),
-        updatedAt: fields.contains('updated_at') ? (row[2] as DateTime?) : null,
+        updatedAt: (row[2] as DateTime?),
-        name: fields.contains('name') ? (row[3] as String?) : null);
+        name: (row[3] as String?));
     return Optional.of(model);
   }
 

packages/orm/angel_orm_test/lib/src/models/car.g.dart

@@ -40,8 +40,6 @@ class CarQuery extends Query<Car, CarQueryWhere> {
   @override
   final CarQueryValues values = CarQueryValues();
 
-  List<String> _selectedFields = [];
-
   CarQueryWhere? _where;
 
   @override
@@ -56,7 +54,7 @@ class CarQuery extends Query<Car, CarQueryWhere> {
 
   @override
   List<String> get fields {
-    const _fields = [
+    return const [
       'id',
       'created_at',
       'updated_at',
@@ -65,14 +63,6 @@ class CarQuery extends Query<Car, CarQueryWhere> {
       'family_friendly',
       'recalled_at'
     ];
-    return _selectedFields.isEmpty
-        ? _fields
-        : _fields.where((field) => _selectedFields.contains(field)).toList();
-  }
-
-  CarQuery select(List<String> selectedFields) {
-    _selectedFields = selectedFields;
-    return this;
   }
 
   @override
@@ -85,21 +75,18 @@ class CarQuery extends Query<Car, CarQueryWhere> {
     return CarQueryWhere(this);
   }
 
-  Optional<Car> parseRow(List row) {
+  static Optional<Car> parseRow(List row) {
     if (row.every((x) => x == null)) {
       return Optional.empty();
     }
     var model = Car(
-        id: fields.contains('id') ? row[0].toString() : null,
+        id: row[0].toString(),
-        createdAt: fields.contains('created_at') ? (row[1] as DateTime?) : null,
+        createdAt: (row[1] as DateTime?),
-        updatedAt: fields.contains('updated_at') ? (row[2] as DateTime?) : null,
+        updatedAt: (row[2] as DateTime?),
-        make: fields.contains('make') ? (row[3] as String?) : null,
+        make: (row[3] as String?),
-        description:
+        description: (row[4] as String?),
-            fields.contains('description') ? (row[4] as String?) : null,
+        familyFriendly: (row[5] as bool?),
-        familyFriendly:
+        recalledAt: (row[6] as DateTime?));
-            fields.contains('family_friendly') ? (row[5] as bool?) : null,
-        recalledAt:
-            fields.contains('recalled_at') ? (row[6] as DateTime?) : null);
     return Optional.of(model);
   }
 

packages/orm/angel_orm_test/lib/src/models/custom_expr.g.dart

@@ -58,8 +58,6 @@ class NumbersQuery extends Query<Numbers, NumbersQueryWhere> {
   @override
   final NumbersQueryValues values = NumbersQueryValues();
 
-  List<String> _selectedFields = [];
-
   NumbersQueryWhere? _where;
 
   @override
@@ -74,15 +72,7 @@ class NumbersQuery extends Query<Numbers, NumbersQueryWhere> {
 
   @override
   List<String> get fields {
-    const _fields = ['id', 'created_at', 'updated_at', 'two'];
+    return const ['id', 'created_at', 'updated_at', 'two'];
-    return _selectedFields.isEmpty
-        ? _fields
-        : _fields.where((field) => _selectedFields.contains(field)).toList();
-  }
-
-  NumbersQuery select(List<String> selectedFields) {
-    _selectedFields = selectedFields;
-    return this;
   }
 
   @override
@@ -95,15 +85,15 @@ class NumbersQuery extends Query<Numbers, NumbersQueryWhere> {
     return NumbersQueryWhere(this);
   }
 
-  Optional<Numbers> parseRow(List row) {
+  static Optional<Numbers> parseRow(List row) {
     if (row.every((x) => x == null)) {
       return Optional.empty();
     }
     var model = Numbers(
-        id: fields.contains('id') ? row[0].toString() : null,
+        id: row[0].toString(),
-        createdAt: fields.contains('created_at') ? (row[1] as DateTime?) : null,
+        createdAt: (row[1] as DateTime?),
-        updatedAt: fields.contains('updated_at') ? (row[2] as DateTime?) : null,
+        updatedAt: (row[2] as DateTime?),
-        two: fields.contains('two') ? (row[3] as int?) : null);
+        two: (row[3] as int?));
     return Optional.of(model);
   }
 
@@ -173,8 +163,6 @@ class AlphabetQuery extends Query<Alphabet, AlphabetQueryWhere> {
   @override
   final AlphabetQueryValues values = AlphabetQueryValues();
 
-  List<String> _selectedFields = [];
-
   AlphabetQueryWhere? _where;
 
   late NumbersQuery _numbers;
@@ -191,15 +179,7 @@ class AlphabetQuery extends Query<Alphabet, AlphabetQueryWhere> {
 
   @override
   List<String> get fields {
-    const _fields = ['id', 'created_at', 'updated_at', 'value', 'numbers_id'];
+    return const ['id', 'created_at', 'updated_at', 'value', 'numbers_id'];
-    return _selectedFields.isEmpty
-        ? _fields
-        : _fields.where((field) => _selectedFields.contains(field)).toList();
-  }
-
-  AlphabetQuery select(List<String> selectedFields) {
-    _selectedFields = selectedFields;
-    return this;
   }
 
   @override
@@ -212,17 +192,17 @@ class AlphabetQuery extends Query<Alphabet, AlphabetQueryWhere> {
     return AlphabetQueryWhere(this);
   }
 
-  Optional<Alphabet> parseRow(List row) {
+  static Optional<Alphabet> parseRow(List row) {
     if (row.every((x) => x == null)) {
       return Optional.empty();
     }
     var model = Alphabet(
-        id: fields.contains('id') ? row[0].toString() : null,
+        id: row[0].toString(),
-        createdAt: fields.contains('created_at') ? (row[1] as DateTime?) : null,
+        createdAt: (row[1] as DateTime?),
-        updatedAt: fields.contains('updated_at') ? (row[2] as DateTime?) : null,
+        updatedAt: (row[2] as DateTime?),
-        value: fields.contains('value') ? (row[3] as String?) : null);
+        value: (row[3] as String?));
     if (row.length > 5) {
-      var modelOpt = NumbersQuery().parseRow(row.skip(5).take(4).toList());
+      var modelOpt = NumbersQuery.parseRow(row.skip(5).take(4).toList());
       modelOpt.ifPresent((m) {
         model = model.copyWith(numbers: m);
       });

packages/orm/angel_orm_test/lib/src/models/email_indexed.g.dart

@@ -75,8 +75,6 @@ class RoleQuery extends Query<Role, RoleQueryWhere> {
   @override
   final RoleQueryValues values = RoleQueryValues();
 
-  List<String> _selectedFields = [];
-
   RoleQueryWhere? _where;
 
   @override
@@ -91,15 +89,7 @@ class RoleQuery extends Query<Role, RoleQueryWhere> {
 
   @override
   List<String> get fields {
-    const _fields = ['role'];
+    return const ['role'];
-    return _selectedFields.isEmpty
-        ? _fields
-        : _fields.where((field) => _selectedFields.contains(field)).toList();
-  }
-
-  RoleQuery select(List<String> selectedFields) {
-    _selectedFields = selectedFields;
-    return this;
   }
 
   @override
@@ -112,14 +102,13 @@ class RoleQuery extends Query<Role, RoleQueryWhere> {
     return RoleQueryWhere(this);
   }
 
-  Optional<Role> parseRow(List row) {
+  static Optional<Role> parseRow(List row) {
     if (row.every((x) => x == null)) {
       return Optional.empty();
     }
-    var model =
+    var model = Role(role: (row[0] as String?));
-        Role(role: fields.contains('role') ? (row[0] as String?) : null);
     if (row.length > 1) {
-      var modelOpt = UserQuery().parseRow(row.skip(1).take(3).toList());
+      var modelOpt = UserQuery.parseRow(row.skip(1).take(3).toList());
       modelOpt.ifPresent((m) {
         model = model.copyWith(users: [m]);
       });
@@ -239,8 +228,6 @@ class RoleUserQuery extends Query<RoleUser, RoleUserQueryWhere> {
   @override
   final RoleUserQueryValues values = RoleUserQueryValues();
 
-  List<String> _selectedFields = [];
-
   RoleUserQueryWhere? _where;
 
   late RoleQuery _role;
@@ -259,15 +246,7 @@ class RoleUserQuery extends Query<RoleUser, RoleUserQueryWhere> {
 
   @override
   List<String> get fields {
-    const _fields = ['role_role', 'user_email'];
+    return const ['role_role', 'user_email'];
-    return _selectedFields.isEmpty
-        ? _fields
-        : _fields.where((field) => _selectedFields.contains(field)).toList();
-  }
-
-  RoleUserQuery select(List<String> selectedFields) {
-    _selectedFields = selectedFields;
-    return this;
   }
 
   @override
@@ -280,19 +259,19 @@ class RoleUserQuery extends Query<RoleUser, RoleUserQueryWhere> {
     return RoleUserQueryWhere(this);
   }
 
-  Optional<RoleUser> parseRow(List row) {
+  static Optional<RoleUser> parseRow(List row) {
     if (row.every((x) => x == null)) {
       return Optional.empty();
     }
     var model = RoleUser();
     if (row.length > 2) {
-      var modelOpt = RoleQuery().parseRow(row.skip(2).take(1).toList());
+      var modelOpt = RoleQuery.parseRow(row.skip(2).take(1).toList());
       modelOpt.ifPresent((m) {
         model = model.copyWith(role: m);
       });
     }
     if (row.length > 3) {
-      var modelOpt = UserQuery().parseRow(row.skip(3).take(3).toList());
+      var modelOpt = UserQuery.parseRow(row.skip(3).take(3).toList());
       modelOpt.ifPresent((m) {
         model = model.copyWith(user: m);
       });
@@ -371,8 +350,6 @@ class UserQuery extends Query<User, UserQueryWhere> {
   @override
   final UserQueryValues values = UserQueryValues();
 
-  List<String> _selectedFields = [];
-
   UserQueryWhere? _where;
 
   @override
@@ -387,15 +364,7 @@ class UserQuery extends Query<User, UserQueryWhere> {
 
   @override
   List<String> get fields {
-    const _fields = ['email', 'name', 'password'];
+    return const ['email', 'name', 'password'];
-    return _selectedFields.isEmpty
-        ? _fields
-        : _fields.where((field) => _selectedFields.contains(field)).toList();
-  }
-
-  UserQuery select(List<String> selectedFields) {
-    _selectedFields = selectedFields;
-    return this;
   }
 
   @override
@@ -408,16 +377,16 @@ class UserQuery extends Query<User, UserQueryWhere> {
     return UserQueryWhere(this);
   }
 
-  Optional<User> parseRow(List row) {
+  static Optional<User> parseRow(List row) {
     if (row.every((x) => x == null)) {
       return Optional.empty();
     }
     var model = User(
-        email: fields.contains('email') ? (row[0] as String?) : null,
+        email: (row[0] as String?),
-        name: fields.contains('name') ? (row[1] as String?) : null,
+        name: (row[1] as String?),
-        password: fields.contains('password') ? (row[2] as String?) : null);
+        password: (row[2] as String?));
     if (row.length > 3) {
-      var modelOpt = RoleQuery().parseRow(row.skip(3).take(1).toList());
+      var modelOpt = RoleQuery.parseRow(row.skip(3).take(1).toList());
       modelOpt.ifPresent((m) {
         model = model.copyWith(roles: [m]);
       });

packages/orm/angel_orm_test/lib/src/models/fortune.g.dart

@@ -36,8 +36,6 @@ class FortuneQuery extends Query<Fortune, FortuneQueryWhere> {
   @override
   final FortuneQueryValues values = FortuneQueryValues();
 
-  List<String> _selectedFields = [];
-
   FortuneQueryWhere? _where;
 
   @override
@@ -52,15 +50,7 @@ class FortuneQuery extends Query<Fortune, FortuneQueryWhere> {
 
   @override
   List<String> get fields {
-    const _fields = ['id', 'message'];
+    return const ['id', 'message'];
-    return _selectedFields.isEmpty
-        ? _fields
-        : _fields.where((field) => _selectedFields.contains(field)).toList();
-  }
-
-  FortuneQuery select(List<String> selectedFields) {
-    _selectedFields = selectedFields;
-    return this;
   }
 
   @override
@@ -73,13 +63,11 @@ class FortuneQuery extends Query<Fortune, FortuneQueryWhere> {
     return FortuneQueryWhere(this);
   }
 
-  Optional<Fortune> parseRow(List row) {
+  static Optional<Fortune> parseRow(List row) {
     if (row.every((x) => x == null)) {
       return Optional.empty();
     }
-    var model = Fortune(
+    var model = Fortune(id: (row[0] as int?), message: (row[1] as String?));
-        id: fields.contains('id') ? (row[0] as int?) : null,
-        message: fields.contains('message') ? (row[1] as String?) : null);
     return Optional.of(model);
   }
 

packages/orm/angel_orm_test/lib/src/models/has_car.g.dart

@@ -38,8 +38,6 @@ class HasCarQuery extends Query<HasCar, HasCarQueryWhere> {
   @override
   final HasCarQueryValues values = HasCarQueryValues();
 
-  List<String> _selectedFields = [];
-
   HasCarQueryWhere? _where;
 
   @override
@@ -54,15 +52,7 @@ class HasCarQuery extends Query<HasCar, HasCarQueryWhere> {
 
   @override
   List<String> get fields {
-    const _fields = ['id', 'created_at', 'updated_at', 'type'];
+    return const ['id', 'created_at', 'updated_at', 'type'];
-    return _selectedFields.isEmpty
-        ? _fields
-        : _fields.where((field) => _selectedFields.contains(field)).toList();
-  }
-
-  HasCarQuery select(List<String> selectedFields) {
-    _selectedFields = selectedFields;
-    return this;
   }
 
   @override
@@ -75,19 +65,15 @@ class HasCarQuery extends Query<HasCar, HasCarQueryWhere> {
     return HasCarQueryWhere(this);
   }
 
-  Optional<HasCar> parseRow(List row) {
+  static Optional<HasCar> parseRow(List row) {
     if (row.every((x) => x == null)) {
       return Optional.empty();
     }
     var model = HasCar(
-        id: fields.contains('id') ? row[0].toString() : null,
+        id: row[0].toString(),
-        createdAt: fields.contains('created_at') ? (row[1] as DateTime?) : null,
+        createdAt: (row[1] as DateTime?),
-        updatedAt: fields.contains('updated_at') ? (row[2] as DateTime?) : null,
+        updatedAt: (row[2] as DateTime?),
-        type: fields.contains('type')
+        type: row[3] == null ? null : CarType?.values[(row[3] as int)]);
-            ? row[3] == null
-                ? null
-                : CarType?.values[(row[3] as int)]
-            : null);
     return Optional.of(model);
   }
 

packages/orm/angel_orm_test/lib/src/models/has_map.g.dart

@@ -38,8 +38,6 @@ class HasMapQuery extends Query<HasMap, HasMapQueryWhere> {
   @override
   final HasMapQueryValues values = HasMapQueryValues();
 
-  List<String> _selectedFields = [];
-
   HasMapQueryWhere? _where;
 
   @override
@@ -54,15 +52,7 @@ class HasMapQuery extends Query<HasMap, HasMapQueryWhere> {
 
   @override
   List<String> get fields {
-    const _fields = ['value', 'list'];
+    return const ['value', 'list'];
-    return _selectedFields.isEmpty
-        ? _fields
-        : _fields.where((field) => _selectedFields.contains(field)).toList();
-  }
-
-  HasMapQuery select(List<String> selectedFields) {
-    _selectedFields = selectedFields;
-    return this;
   }
 
   @override
@@ -75,15 +65,13 @@ class HasMapQuery extends Query<HasMap, HasMapQueryWhere> {
     return HasMapQueryWhere(this);
   }
 
-  Optional<HasMap> parseRow(List row) {
+  static Optional<HasMap> parseRow(List row) {
     if (row.every((x) => x == null)) {
       return Optional.empty();
     }
     var model = HasMap(
-        value: fields.contains('value')
+        value: (row[0] as Map<dynamic, dynamic>?),
-            ? (row[0] as Map<dynamic, dynamic>?)
+        list: (row[1] as List<dynamic>?));
-            : null,
-        list: fields.contains('list') ? (row[1] as List<dynamic>?) : null);
     return Optional.of(model);
   }
 

packages/orm/angel_orm_test/lib/src/models/leg.g.dart

@@ -66,8 +66,6 @@ class LegQuery extends Query<Leg, LegQueryWhere> {
   @override
   final LegQueryValues values = LegQueryValues();
 
-  List<String> _selectedFields = [];
-
   LegQueryWhere? _where;
 
   late FootQuery _foot;
@@ -84,15 +82,7 @@ class LegQuery extends Query<Leg, LegQueryWhere> {
 
   @override
   List<String> get fields {
-    const _fields = ['id', 'created_at', 'updated_at', 'name'];
+    return const ['id', 'created_at', 'updated_at', 'name'];
-    return _selectedFields.isEmpty
-        ? _fields
-        : _fields.where((field) => _selectedFields.contains(field)).toList();
-  }
-
-  LegQuery select(List<String> selectedFields) {
-    _selectedFields = selectedFields;
-    return this;
   }
 
   @override
@@ -105,17 +95,17 @@ class LegQuery extends Query<Leg, LegQueryWhere> {
     return LegQueryWhere(this);
   }
 
-  Optional<Leg> parseRow(List row) {
+  static Optional<Leg> parseRow(List row) {
     if (row.every((x) => x == null)) {
       return Optional.empty();
     }
     var model = Leg(
-        id: fields.contains('id') ? row[0].toString() : null,
+        id: row[0].toString(),
-        createdAt: fields.contains('created_at') ? (row[1] as DateTime?) : null,
+        createdAt: (row[1] as DateTime?),
-        updatedAt: fields.contains('updated_at') ? (row[2] as DateTime?) : null,
+        updatedAt: (row[2] as DateTime?),
-        name: fields.contains('name') ? (row[3] as String?) : null);
+        name: (row[3] as String?));
     if (row.length > 4) {
-      var modelOpt = FootQuery().parseRow(row.skip(4).take(5).toList());
+      var modelOpt = FootQuery.parseRow(row.skip(4).take(5).toList());
       modelOpt.ifPresent((m) {
         model = model.copyWith(foot: m);
       });
@@ -197,8 +187,6 @@ class FootQuery extends Query<Foot, FootQueryWhere> {
   @override
   final FootQueryValues values = FootQueryValues();
 
-  List<String> _selectedFields = [];
-
   FootQueryWhere? _where;
 
   @override
@@ -213,15 +201,7 @@ class FootQuery extends Query<Foot, FootQueryWhere> {
 
   @override
   List<String> get fields {
-    const _fields = ['id', 'created_at', 'updated_at', 'leg_id', 'n_toes'];
+    return const ['id', 'created_at', 'updated_at', 'leg_id', 'n_toes'];
-    return _selectedFields.isEmpty
-        ? _fields
-        : _fields.where((field) => _selectedFields.contains(field)).toList();
-  }
-
-  FootQuery select(List<String> selectedFields) {
-    _selectedFields = selectedFields;
-    return this;
   }
 
   @override
@@ -234,18 +214,16 @@ class FootQuery extends Query<Foot, FootQueryWhere> {
     return FootQueryWhere(this);
   }
 
-  Optional<Foot> parseRow(List row) {
+  static Optional<Foot> parseRow(List row) {
     if (row.every((x) => x == null)) {
       return Optional.empty();
     }
     var model = Foot(
-        id: fields.contains('id') ? row[0].toString() : null,
+        id: row[0].toString(),
-        createdAt: fields.contains('created_at') ? (row[1] as DateTime?) : null,
+        createdAt: (row[1] as DateTime?),
-        updatedAt: fields.contains('updated_at') ? (row[2] as DateTime?) : null,
+        updatedAt: (row[2] as DateTime?),
-        legId: fields.contains('leg_id') ? (row[3] as int?) : null,
+        legId: (row[3] as int?),
-        nToes: fields.contains('n_toes')
+        nToes: double.tryParse(row[4].toString()));
-            ? double.tryParse(row[4].toString())
-            : null);
     return Optional.of(model);
   }
 

packages/orm/angel_orm_test/lib/src/models/order.g.dart

@@ -62,8 +62,6 @@ class OrderQuery extends Query<Order, OrderQueryWhere> {
   @override
   final OrderQueryValues values = OrderQueryValues();
 
-  List<String> _selectedFields = [];
-
   OrderQueryWhere? _where;
 
   late CustomerQuery _customer;
@@ -80,7 +78,7 @@ class OrderQuery extends Query<Order, OrderQueryWhere> {
 
   @override
   List<String> get fields {
-    const _fields = [
+    return const [
       'id',
       'created_at',
       'updated_at',
@@ -89,14 +87,6 @@ class OrderQuery extends Query<Order, OrderQueryWhere> {
       'order_date',
       'shipper_id'
     ];
-    return _selectedFields.isEmpty
-        ? _fields
-        : _fields.where((field) => _selectedFields.contains(field)).toList();
-  }
-
-  OrderQuery select(List<String> selectedFields) {
-    _selectedFields = selectedFields;
-    return this;
   }
 
   @override
@@ -109,19 +99,19 @@ class OrderQuery extends Query<Order, OrderQueryWhere> {
     return OrderQueryWhere(this);
   }
 
-  Optional<Order> parseRow(List row) {
+  static Optional<Order> parseRow(List row) {
     if (row.every((x) => x == null)) {
       return Optional.empty();
     }
     var model = Order(
-        id: fields.contains('id') ? row[0].toString() : null,
+        id: row[0].toString(),
-        createdAt: fields.contains('created_at') ? (row[1] as DateTime?) : null,
+        createdAt: (row[1] as DateTime?),
-        updatedAt: fields.contains('updated_at') ? (row[2] as DateTime?) : null,
+        updatedAt: (row[2] as DateTime?),
-        employeeId: fields.contains('employee_id') ? (row[4] as int?) : null,
+        employeeId: (row[4] as int?),
-        orderDate: fields.contains('order_date') ? (row[5] as DateTime?) : null,
+        orderDate: (row[5] as DateTime?),
-        shipperId: fields.contains('shipper_id') ? (row[6] as int?) : null);
+        shipperId: (row[6] as int?));
     if (row.length > 7) {
-      var modelOpt = CustomerQuery().parseRow(row.skip(7).take(3).toList());
+      var modelOpt = CustomerQuery.parseRow(row.skip(7).take(3).toList());
       modelOpt.ifPresent((m) {
         model = model.copyWith(customer: m);
       });
@@ -241,8 +231,6 @@ class CustomerQuery extends Query<Customer, CustomerQueryWhere> {
   @override
   final CustomerQueryValues values = CustomerQueryValues();
 
-  List<String> _selectedFields = [];
-
   CustomerQueryWhere? _where;
 
   @override
@@ -257,15 +245,7 @@ class CustomerQuery extends Query<Customer, CustomerQueryWhere> {
 
   @override
   List<String> get fields {
-    const _fields = ['id', 'created_at', 'updated_at'];
+    return const ['id', 'created_at', 'updated_at'];
-    return _selectedFields.isEmpty
-        ? _fields
-        : _fields.where((field) => _selectedFields.contains(field)).toList();
-  }
-
-  CustomerQuery select(List<String> selectedFields) {
-    _selectedFields = selectedFields;
-    return this;
   }
 
   @override
@@ -278,15 +258,14 @@ class CustomerQuery extends Query<Customer, CustomerQueryWhere> {
     return CustomerQueryWhere(this);
   }
 
-  Optional<Customer> parseRow(List row) {
+  static Optional<Customer> parseRow(List row) {
     if (row.every((x) => x == null)) {
       return Optional.empty();
     }
     var model = Customer(
-        id: fields.contains('id') ? row[0].toString() : null,
+        id: row[0].toString(),
-        createdAt: fields.contains('created_at') ? (row[1] as DateTime?) : null,
+        createdAt: (row[1] as DateTime?),
-        updatedAt:
+        updatedAt: (row[2] as DateTime?));
-            fields.contains('updated_at') ? (row[2] as DateTime?) : null);
     return Optional.of(model);
   }
 

packages/orm/angel_orm_test/lib/src/models/person.dart

@@ -0,0 +1,26 @@
+library angel_orm3.generator.models.person;
+
+import 'package:angel3_migration/angel3_migration.dart';
+import 'package:angel3_orm/angel3_orm.dart';
+import 'package:angel3_serialize/angel3_serialize.dart';
+import 'package:optional/optional.dart';
+part 'person.g.dart';
+
+@serializable
+@Orm(tableName: 'persons')
+class _Person extends Model {
+  String? name;
+  int? age;
+}
+
+@serializable
+@Orm(tableName: 'persons', generateMigrations: false)
+class _PersonWithLastOrder {
+  String? name;
+
+  @Column(expression: 'po.name')
+  String? lastOrderName;
+
+  @Column(expression: 'po.price')
+  int? lastOrderPrice;
+}

packages/orm/angel_orm_test/lib/src/models/person.g.dart

@@ -0,0 +1,482 @@
+// GENERATED CODE - DO NOT MODIFY BY HAND
+
+part of angel_orm3.generator.models.person;
+
+// **************************************************************************
+// MigrationGenerator
+// **************************************************************************
+
+class PersonMigration extends Migration {
+  @override
+  void up(Schema schema) {
+    schema.create('persons', (table) {
+      table.serial('id').primaryKey();
+      table.timeStamp('created_at');
+      table.timeStamp('updated_at');
+      table.varChar('name', length: 255);
+      table.integer('age');
+    });
+  }
+
+  @override
+  void down(Schema schema) {
+    schema.drop('persons');
+  }
+}
+
+// **************************************************************************
+// OrmGenerator
+// **************************************************************************
+
+class PersonQuery extends Query<Person, PersonQueryWhere> {
+  PersonQuery({Query? parent, Set<String>? trampoline})
+      : super(parent: parent) {
+    trampoline ??= <String>{};
+    trampoline.add(tableName);
+    _where = PersonQueryWhere(this);
+  }
+
+  @override
+  final PersonQueryValues values = PersonQueryValues();
+
+  PersonQueryWhere? _where;
+
+  @override
+  Map<String, String> get casts {
+    return {};
+  }
+
+  @override
+  String get tableName {
+    return 'persons';
+  }
+
+  @override
+  List<String> get fields {
+    return const ['id', 'created_at', 'updated_at', 'name', 'age'];
+  }
+
+  @override
+  PersonQueryWhere? get where {
+    return _where;
+  }
+
+  @override
+  PersonQueryWhere newWhereClause() {
+    return PersonQueryWhere(this);
+  }
+
+  static Optional<Person> parseRow(List row) {
+    if (row.every((x) => x == null)) {
+      return Optional.empty();
+    }
+    var model = Person(
+        id: row[0].toString(),
+        createdAt: (row[1] as DateTime?),
+        updatedAt: (row[2] as DateTime?),
+        name: (row[3] as String?),
+        age: (row[4] as int?));
+    return Optional.of(model);
+  }
+
+  @override
+  Optional<Person> deserialize(List row) {
+    return parseRow(row);
+  }
+}
+
+class PersonQueryWhere extends QueryWhere {
+  PersonQueryWhere(PersonQuery query)
+      : id = NumericSqlExpressionBuilder<int>(query, 'id'),
+        createdAt = DateTimeSqlExpressionBuilder(query, 'created_at'),
+        updatedAt = DateTimeSqlExpressionBuilder(query, 'updated_at'),
+        name = StringSqlExpressionBuilder(query, 'name'),
+        age = NumericSqlExpressionBuilder<int>(query, 'age');
+
+  final NumericSqlExpressionBuilder<int> id;
+
+  final DateTimeSqlExpressionBuilder createdAt;
+
+  final DateTimeSqlExpressionBuilder updatedAt;
+
+  final StringSqlExpressionBuilder name;
+
+  final NumericSqlExpressionBuilder<int> age;
+
+  @override
+  List<SqlExpressionBuilder> get expressionBuilders {
+    return [id, createdAt, updatedAt, name, age];
+  }
+}
+
+class PersonQueryValues extends MapQueryValues {
+  @override
+  Map<String, String> get casts {
+    return {};
+  }
+
+  String? get id {
+    return (values['id'] as String?);
+  }
+
+  set id(String? value) => values['id'] = value;
+  DateTime? get createdAt {
+    return (values['created_at'] as DateTime?);
+  }
+
+  set createdAt(DateTime? value) => values['created_at'] = value;
+  DateTime? get updatedAt {
+    return (values['updated_at'] as DateTime?);
+  }
+
+  set updatedAt(DateTime? value) => values['updated_at'] = value;
+  String? get name {
+    return (values['name'] as String?);
+  }
+
+  set name(String? value) => values['name'] = value;
+  int? get age {
+    return (values['age'] as int?);
+  }
+
+  set age(int? value) => values['age'] = value;
+  void copyFrom(Person model) {
+    createdAt = model.createdAt;
+    updatedAt = model.updatedAt;
+    name = model.name;
+    age = model.age;
+  }
+}
+
+class PersonWithLastOrderQuery
+    extends Query<PersonWithLastOrder, PersonWithLastOrderQueryWhere> {
+  PersonWithLastOrderQuery({Query? parent, Set<String>? trampoline})
+      : super(parent: parent) {
+    trampoline ??= <String>{};
+    trampoline.add(tableName);
+    expressions['last_order_name'] = 'po.name';
+    expressions['last_order_price'] = 'po.price';
+    _where = PersonWithLastOrderQueryWhere(this);
+  }
+
+  @override
+  final PersonWithLastOrderQueryValues values =
+      PersonWithLastOrderQueryValues();
+
+  PersonWithLastOrderQueryWhere? _where;
+
+  @override
+  Map<String, String> get casts {
+    return {};
+  }
+
+  @override
+  String get tableName {
+    return 'persons';
+  }
+
+  @override
+  List<String> get fields {
+    return const ['name', 'last_order_name', 'last_order_price'];
+  }
+
+  @override
+  PersonWithLastOrderQueryWhere? get where {
+    return _where;
+  }
+
+  @override
+  PersonWithLastOrderQueryWhere newWhereClause() {
+    return PersonWithLastOrderQueryWhere(this);
+  }
+
+  static Optional<PersonWithLastOrder> parseRow(List row) {
+    if (row.every((x) => x == null)) {
+      return Optional.empty();
+    }
+    var model = PersonWithLastOrder(
+        name: (row[0] as String?),
+        lastOrderName: (row[1] as String?),
+        lastOrderPrice: (row[2] as int?));
+    return Optional.of(model);
+  }
+
+  @override
+  Optional<PersonWithLastOrder> deserialize(List row) {
+    return parseRow(row);
+  }
+}
+
+class PersonWithLastOrderQueryWhere extends QueryWhere {
+  PersonWithLastOrderQueryWhere(PersonWithLastOrderQuery query)
+      : name = StringSqlExpressionBuilder(query, 'name');
+
+  final StringSqlExpressionBuilder name;
+
+  @override
+  List<SqlExpressionBuilder> get expressionBuilders {
+    return [name];
+  }
+}
+
+class PersonWithLastOrderQueryValues extends MapQueryValues {
+  @override
+  Map<String, String> get casts {
+    return {};
+  }
+
+  String? get name {
+    return (values['name'] as String?);
+  }
+
+  set name(String? value) => values['name'] = value;
+  void copyFrom(PersonWithLastOrder model) {
+    name = model.name;
+  }
+}
+
+// **************************************************************************
+// JsonModelGenerator
+// **************************************************************************
+
+@generatedSerializable
+class Person extends _Person {
+  Person({this.id, this.createdAt, this.updatedAt, this.name, this.age});
+
+  /// A unique identifier corresponding to this item.
+  @override
+  String? id;
+
+  /// The time at which this item was created.
+  @override
+  DateTime? createdAt;
+
+  /// The last time at which this item was updated.
+  @override
+  DateTime? updatedAt;
+
+  @override
+  String? name;
+
+  @override
+  int? age;
+
+  Person copyWith(
+      {String? id,
+      DateTime? createdAt,
+      DateTime? updatedAt,
+      String? name,
+      int? age}) {
+    return Person(
+        id: id ?? this.id,
+        createdAt: createdAt ?? this.createdAt,
+        updatedAt: updatedAt ?? this.updatedAt,
+        name: name ?? this.name,
+        age: age ?? this.age);
+  }
+
+  @override
+  bool operator ==(other) {
+    return other is _Person &&
+        other.id == id &&
+        other.createdAt == createdAt &&
+        other.updatedAt == updatedAt &&
+        other.name == name &&
+        other.age == age;
+  }
+
+  @override
+  int get hashCode {
+    return hashObjects([id, createdAt, updatedAt, name, age]);
+  }
+
+  @override
+  String toString() {
+    return 'Person(id=$id, createdAt=$createdAt, updatedAt=$updatedAt, name=$name, age=$age)';
+  }
+
+  Map<String, dynamic> toJson() {
+    return PersonSerializer.toMap(this);
+  }
+}
+
+@generatedSerializable
+class PersonWithLastOrder extends _PersonWithLastOrder {
+  PersonWithLastOrder({this.name, this.lastOrderName, this.lastOrderPrice});
+
+  @override
+  String? name;
+
+  @override
+  String? lastOrderName;
+
+  @override
+  int? lastOrderPrice;
+
+  PersonWithLastOrder copyWith(
+      {String? name, String? lastOrderName, int? lastOrderPrice}) {
+    return PersonWithLastOrder(
+        name: name ?? this.name,
+        lastOrderName: lastOrderName ?? this.lastOrderName,
+        lastOrderPrice: lastOrderPrice ?? this.lastOrderPrice);
+  }
+
+  @override
+  bool operator ==(other) {
+    return other is _PersonWithLastOrder &&
+        other.name == name &&
+        other.lastOrderName == lastOrderName &&
+        other.lastOrderPrice == lastOrderPrice;
+  }
+
+  @override
+  int get hashCode {
+    return hashObjects([name, lastOrderName, lastOrderPrice]);
+  }
+
+  @override
+  String toString() {
+    return 'PersonWithLastOrder(name=$name, lastOrderName=$lastOrderName, lastOrderPrice=$lastOrderPrice)';
+  }
+
+  Map<String, dynamic> toJson() {
+    return PersonWithLastOrderSerializer.toMap(this);
+  }
+}
+
+// **************************************************************************
+// SerializerGenerator
+// **************************************************************************
+
+const PersonSerializer personSerializer = PersonSerializer();
+
+class PersonEncoder extends Converter<Person, Map> {
+  const PersonEncoder();
+
+  @override
+  Map convert(Person model) => PersonSerializer.toMap(model);
+}
+
+class PersonDecoder extends Converter<Map, Person> {
+  const PersonDecoder();
+
+  @override
+  Person convert(Map map) => PersonSerializer.fromMap(map);
+}
+
+class PersonSerializer extends Codec<Person, Map> {
+  const PersonSerializer();
+
+  @override
+  PersonEncoder get encoder => const PersonEncoder();
+  @override
+  PersonDecoder get decoder => const PersonDecoder();
+  static Person fromMap(Map map) {
+    return Person(
+        id: map['id'] as String?,
+        createdAt: map['created_at'] != null
+            ? (map['created_at'] is DateTime
+                ? (map['created_at'] as DateTime)
+                : DateTime.parse(map['created_at'].toString()))
+            : null,
+        updatedAt: map['updated_at'] != null
+            ? (map['updated_at'] is DateTime
+                ? (map['updated_at'] as DateTime)
+                : DateTime.parse(map['updated_at'].toString()))
+            : null,
+        name: map['name'] as String?,
+        age: map['age'] as int?);
+  }
+
+  static Map<String, dynamic> toMap(_Person? model) {
+    if (model == null) {
+      return {};
+    }
+    return {
+      'id': model.id,
+      'created_at': model.createdAt?.toIso8601String(),
+      'updated_at': model.updatedAt?.toIso8601String(),
+      'name': model.name,
+      'age': model.age
+    };
+  }
+}
+
+abstract class PersonFields {
+  static const List<String> allFields = <String>[
+    id,
+    createdAt,
+    updatedAt,
+    name,
+    age
+  ];
+
+  static const String id = 'id';
+
+  static const String createdAt = 'created_at';
+
+  static const String updatedAt = 'updated_at';
+
+  static const String name = 'name';
+
+  static const String age = 'age';
+}
+
+const PersonWithLastOrderSerializer personWithLastOrderSerializer =
+    PersonWithLastOrderSerializer();
+
+class PersonWithLastOrderEncoder extends Converter<PersonWithLastOrder, Map> {
+  const PersonWithLastOrderEncoder();
+
+  @override
+  Map convert(PersonWithLastOrder model) =>
+      PersonWithLastOrderSerializer.toMap(model);
+}
+
+class PersonWithLastOrderDecoder extends Converter<Map, PersonWithLastOrder> {
+  const PersonWithLastOrderDecoder();
+
+  @override
+  PersonWithLastOrder convert(Map map) =>
+      PersonWithLastOrderSerializer.fromMap(map);
+}
+
+class PersonWithLastOrderSerializer extends Codec<PersonWithLastOrder, Map> {
+  const PersonWithLastOrderSerializer();
+
+  @override
+  PersonWithLastOrderEncoder get encoder => const PersonWithLastOrderEncoder();
+  @override
+  PersonWithLastOrderDecoder get decoder => const PersonWithLastOrderDecoder();
+  static PersonWithLastOrder fromMap(Map map) {
+    return PersonWithLastOrder(
+        name: map['name'] as String?,
+        lastOrderName: map['last_order_name'] as String?,
+        lastOrderPrice: map['last_order_price'] as int?);
+  }
+
+  static Map<String, dynamic> toMap(_PersonWithLastOrder? model) {
+    if (model == null) {
+      return {};
+    }
+    return {
+      'name': model.name,
+      'last_order_name': model.lastOrderName,
+      'last_order_price': model.lastOrderPrice
+    };
+  }
+}
+
+abstract class PersonWithLastOrderFields {
+  static const List<String> allFields = <String>[
+    name,
+    lastOrderName,
+    lastOrderPrice
+  ];
+
+  static const String name = 'name';
+
+  static const String lastOrderName = 'last_order_name';
+
+  static const String lastOrderPrice = 'last_order_price';
+}

packages/orm/angel_orm_test/lib/src/models/person_order.dart

@@ -0,0 +1,36 @@
+library angel3_orm_generator.test.models.person_order;
+
+import 'package:angel3_migration/angel3_migration.dart';
+import 'package:angel3_orm/angel3_orm.dart';
+import 'package:angel3_serialize/angel3_serialize.dart';
+import 'package:optional/optional.dart';
+
+part 'person_order.g.dart';
+
+@orm
+@serializable
+abstract class _PersonOrder extends Model {
+  int? get personId;
+
+  String? get name;
+
+  double? get price;
+
+  bool? get deleted;
+}
+
+@serializable
+@Orm(tableName: 'person_orders', generateMigrations: false)
+abstract class _OrderWithPersonInfo extends Model {
+  String? get name;
+
+  double? get price;
+
+  bool? get deleted;
+
+  @Column(expression: 'p.name')
+  String? get personName;
+
+  @Column(expression: 'p.age')
+  int? get personAge;
+}

packages/orm/angel_orm_test/lib/src/models/person_order.g.dart

@@ -0,0 +1,686 @@
+// GENERATED CODE - DO NOT MODIFY BY HAND
+
+part of angel3_orm_generator.test.models.person_order;
+
+// **************************************************************************
+// MigrationGenerator
+// **************************************************************************
+
+class PersonOrderMigration extends Migration {
+  @override
+  void up(Schema schema) {
+    schema.create('person_orders', (table) {
+      table.serial('id').primaryKey();
+      table.timeStamp('created_at');
+      table.timeStamp('updated_at');
+      table.integer('person_id');
+      table.varChar('name', length: 255);
+      table.declareColumn(
+          'price', Column(type: ColumnType('decimal'), length: 255));
+      table.boolean('deleted');
+    });
+  }
+
+  @override
+  void down(Schema schema) {
+    schema.drop('person_orders');
+  }
+}
+
+// **************************************************************************
+// OrmGenerator
+// **************************************************************************
+
+class PersonOrderQuery extends Query<PersonOrder, PersonOrderQueryWhere> {
+  PersonOrderQuery({Query? parent, Set<String>? trampoline})
+      : super(parent: parent) {
+    trampoline ??= <String>{};
+    trampoline.add(tableName);
+    _where = PersonOrderQueryWhere(this);
+  }
+
+  @override
+  final PersonOrderQueryValues values = PersonOrderQueryValues();
+
+  PersonOrderQueryWhere? _where;
+
+  @override
+  Map<String, String> get casts {
+    return {'price': 'text'};
+  }
+
+  @override
+  String get tableName {
+    return 'person_orders';
+  }
+
+  @override
+  List<String> get fields {
+    return const [
+      'id',
+      'created_at',
+      'updated_at',
+      'person_id',
+      'name',
+      'price',
+      'deleted'
+    ];
+  }
+
+  @override
+  PersonOrderQueryWhere? get where {
+    return _where;
+  }
+
+  @override
+  PersonOrderQueryWhere newWhereClause() {
+    return PersonOrderQueryWhere(this);
+  }
+
+  static Optional<PersonOrder> parseRow(List row) {
+    if (row.every((x) => x == null)) {
+      return Optional.empty();
+    }
+    var model = PersonOrder(
+        id: row[0].toString(),
+        createdAt: (row[1] as DateTime?),
+        updatedAt: (row[2] as DateTime?),
+        personId: (row[3] as int?),
+        name: (row[4] as String?),
+        price: double.tryParse(row[5].toString()),
+        deleted: (row[6] as bool?));
+    return Optional.of(model);
+  }
+
+  @override
+  Optional<PersonOrder> deserialize(List row) {
+    return parseRow(row);
+  }
+}
+
+class PersonOrderQueryWhere extends QueryWhere {
+  PersonOrderQueryWhere(PersonOrderQuery query)
+      : id = NumericSqlExpressionBuilder<int>(query, 'id'),
+        createdAt = DateTimeSqlExpressionBuilder(query, 'created_at'),
+        updatedAt = DateTimeSqlExpressionBuilder(query, 'updated_at'),
+        personId = NumericSqlExpressionBuilder<int>(query, 'person_id'),
+        name = StringSqlExpressionBuilder(query, 'name'),
+        price = NumericSqlExpressionBuilder<double>(query, 'price'),
+        deleted = BooleanSqlExpressionBuilder(query, 'deleted');
+
+  final NumericSqlExpressionBuilder<int> id;
+
+  final DateTimeSqlExpressionBuilder createdAt;
+
+  final DateTimeSqlExpressionBuilder updatedAt;
+
+  final NumericSqlExpressionBuilder<int> personId;
+
+  final StringSqlExpressionBuilder name;
+
+  final NumericSqlExpressionBuilder<double> price;
+
+  final BooleanSqlExpressionBuilder deleted;
+
+  @override
+  List<SqlExpressionBuilder> get expressionBuilders {
+    return [id, createdAt, updatedAt, personId, name, price, deleted];
+  }
+}
+
+class PersonOrderQueryValues extends MapQueryValues {
+  @override
+  Map<String, String> get casts {
+    return {'price': 'decimal'};
+  }
+
+  String? get id {
+    return (values['id'] as String?);
+  }
+
+  set id(String? value) => values['id'] = value;
+  DateTime? get createdAt {
+    return (values['created_at'] as DateTime?);
+  }
+
+  set createdAt(DateTime? value) => values['created_at'] = value;
+  DateTime? get updatedAt {
+    return (values['updated_at'] as DateTime?);
+  }
+
+  set updatedAt(DateTime? value) => values['updated_at'] = value;
+  int? get personId {
+    return (values['person_id'] as int?);
+  }
+
+  set personId(int? value) => values['person_id'] = value;
+  String? get name {
+    return (values['name'] as String?);
+  }
+
+  set name(String? value) => values['name'] = value;
+  double? get price {
+    return double.tryParse((values['price'] as String));
+  }
+
+  set price(double? value) => values['price'] = value.toString();
+  bool? get deleted {
+    return (values['deleted'] as bool?);
+  }
+
+  set deleted(bool? value) => values['deleted'] = value;
+  void copyFrom(PersonOrder model) {
+    createdAt = model.createdAt;
+    updatedAt = model.updatedAt;
+    personId = model.personId;
+    name = model.name;
+    price = model.price;
+    deleted = model.deleted;
+  }
+}
+
+class OrderWithPersonInfoQuery
+    extends Query<OrderWithPersonInfo, OrderWithPersonInfoQueryWhere> {
+  OrderWithPersonInfoQuery({Query? parent, Set<String>? trampoline})
+      : super(parent: parent) {
+    trampoline ??= <String>{};
+    trampoline.add(tableName);
+    expressions['person_name'] = 'p.name';
+    expressions['person_age'] = 'p.age';
+    _where = OrderWithPersonInfoQueryWhere(this);
+  }
+
+  @override
+  final OrderWithPersonInfoQueryValues values =
+      OrderWithPersonInfoQueryValues();
+
+  OrderWithPersonInfoQueryWhere? _where;
+
+  @override
+  Map<String, String> get casts {
+    return {'price': 'text'};
+  }
+
+  @override
+  String get tableName {
+    return 'person_orders';
+  }
+
+  @override
+  List<String> get fields {
+    return const [
+      'id',
+      'created_at',
+      'updated_at',
+      'name',
+      'price',
+      'deleted',
+      'person_name',
+      'person_age'
+    ];
+  }
+
+  @override
+  OrderWithPersonInfoQueryWhere? get where {
+    return _where;
+  }
+
+  @override
+  OrderWithPersonInfoQueryWhere newWhereClause() {
+    return OrderWithPersonInfoQueryWhere(this);
+  }
+
+  static Optional<OrderWithPersonInfo> parseRow(List row) {
+    if (row.every((x) => x == null)) {
+      return Optional.empty();
+    }
+    var model = OrderWithPersonInfo(
+        id: row[0].toString(),
+        createdAt: (row[1] as DateTime?),
+        updatedAt: (row[2] as DateTime?),
+        name: (row[3] as String?),
+        price: double.tryParse(row[4].toString()),
+        deleted: (row[5] as bool?),
+        personName: (row[6] as String?),
+        personAge: (row[7] as int?));
+    return Optional.of(model);
+  }
+
+  @override
+  Optional<OrderWithPersonInfo> deserialize(List row) {
+    return parseRow(row);
+  }
+}
+
+class OrderWithPersonInfoQueryWhere extends QueryWhere {
+  OrderWithPersonInfoQueryWhere(OrderWithPersonInfoQuery query)
+      : id = NumericSqlExpressionBuilder<int>(query, 'id'),
+        createdAt = DateTimeSqlExpressionBuilder(query, 'created_at'),
+        updatedAt = DateTimeSqlExpressionBuilder(query, 'updated_at'),
+        name = StringSqlExpressionBuilder(query, 'name'),
+        price = NumericSqlExpressionBuilder<double>(query, 'price'),
+        deleted = BooleanSqlExpressionBuilder(query, 'deleted');
+
+  final NumericSqlExpressionBuilder<int> id;
+
+  final DateTimeSqlExpressionBuilder createdAt;
+
+  final DateTimeSqlExpressionBuilder updatedAt;
+
+  final StringSqlExpressionBuilder name;
+
+  final NumericSqlExpressionBuilder<double> price;
+
+  final BooleanSqlExpressionBuilder deleted;
+
+  @override
+  List<SqlExpressionBuilder> get expressionBuilders {
+    return [id, createdAt, updatedAt, name, price, deleted];
+  }
+}
+
+class OrderWithPersonInfoQueryValues extends MapQueryValues {
+  @override
+  Map<String, String> get casts {
+    return {'price': 'decimal'};
+  }
+
+  String? get id {
+    return (values['id'] as String?);
+  }
+
+  set id(String? value) => values['id'] = value;
+  DateTime? get createdAt {
+    return (values['created_at'] as DateTime?);
+  }
+
+  set createdAt(DateTime? value) => values['created_at'] = value;
+  DateTime? get updatedAt {
+    return (values['updated_at'] as DateTime?);
+  }
+
+  set updatedAt(DateTime? value) => values['updated_at'] = value;
+  String? get name {
+    return (values['name'] as String?);
+  }
+
+  set name(String? value) => values['name'] = value;
+  double? get price {
+    return double.tryParse((values['price'] as String));
+  }
+
+  set price(double? value) => values['price'] = value.toString();
+  bool? get deleted {
+    return (values['deleted'] as bool?);
+  }
+
+  set deleted(bool? value) => values['deleted'] = value;
+  void copyFrom(OrderWithPersonInfo model) {
+    createdAt = model.createdAt;
+    updatedAt = model.updatedAt;
+    name = model.name;
+    price = model.price;
+    deleted = model.deleted;
+  }
+}
+
+// **************************************************************************
+// JsonModelGenerator
+// **************************************************************************
+
+@generatedSerializable
+class PersonOrder extends _PersonOrder {
+  PersonOrder(
+      {this.id,
+      this.createdAt,
+      this.updatedAt,
+      this.personId,
+      this.name,
+      this.price,
+      this.deleted});
+
+  /// A unique identifier corresponding to this item.
+  @override
+  String? id;
+
+  /// The time at which this item was created.
+  @override
+  DateTime? createdAt;
+
+  /// The last time at which this item was updated.
+  @override
+  DateTime? updatedAt;
+
+  @override
+  int? personId;
+
+  @override
+  String? name;
+
+  @override
+  double? price;
+
+  @override
+  bool? deleted;
+
+  PersonOrder copyWith(
+      {String? id,
+      DateTime? createdAt,
+      DateTime? updatedAt,
+      int? personId,
+      String? name,
+      double? price,
+      bool? deleted}) {
+    return PersonOrder(
+        id: id ?? this.id,
+        createdAt: createdAt ?? this.createdAt,
+        updatedAt: updatedAt ?? this.updatedAt,
+        personId: personId ?? this.personId,
+        name: name ?? this.name,
+        price: price ?? this.price,
+        deleted: deleted ?? this.deleted);
+  }
+
+  @override
+  bool operator ==(other) {
+    return other is _PersonOrder &&
+        other.id == id &&
+        other.createdAt == createdAt &&
+        other.updatedAt == updatedAt &&
+        other.personId == personId &&
+        other.name == name &&
+        other.price == price &&
+        other.deleted == deleted;
+  }
+
+  @override
+  int get hashCode {
+    return hashObjects(
+        [id, createdAt, updatedAt, personId, name, price, deleted]);
+  }
+
+  @override
+  String toString() {
+    return 'PersonOrder(id=$id, createdAt=$createdAt, updatedAt=$updatedAt, personId=$personId, name=$name, price=$price, deleted=$deleted)';
+  }
+
+  Map<String, dynamic> toJson() {
+    return PersonOrderSerializer.toMap(this);
+  }
+}
+
+@generatedSerializable
+class OrderWithPersonInfo extends _OrderWithPersonInfo {
+  OrderWithPersonInfo(
+      {this.id,
+      this.createdAt,
+      this.updatedAt,
+      this.name,
+      this.price,
+      this.deleted,
+      this.personName,
+      this.personAge});
+
+  /// A unique identifier corresponding to this item.
+  @override
+  String? id;
+
+  /// The time at which this item was created.
+  @override
+  DateTime? createdAt;
+
+  /// The last time at which this item was updated.
+  @override
+  DateTime? updatedAt;
+
+  @override
+  String? name;
+
+  @override
+  double? price;
+
+  @override
+  bool? deleted;
+
+  @override
+  String? personName;
+
+  @override
+  int? personAge;
+
+  OrderWithPersonInfo copyWith(
+      {String? id,
+      DateTime? createdAt,
+      DateTime? updatedAt,
+      String? name,
+      double? price,
+      bool? deleted,
+      String? personName,
+      int? personAge}) {
+    return OrderWithPersonInfo(
+        id: id ?? this.id,
+        createdAt: createdAt ?? this.createdAt,
+        updatedAt: updatedAt ?? this.updatedAt,
+        name: name ?? this.name,
+        price: price ?? this.price,
+        deleted: deleted ?? this.deleted,
+        personName: personName ?? this.personName,
+        personAge: personAge ?? this.personAge);
+  }
+
+  @override
+  bool operator ==(other) {
+    return other is _OrderWithPersonInfo &&
+        other.id == id &&
+        other.createdAt == createdAt &&
+        other.updatedAt == updatedAt &&
+        other.name == name &&
+        other.price == price &&
+        other.deleted == deleted &&
+        other.personName == personName &&
+        other.personAge == personAge;
+  }
+
+  @override
+  int get hashCode {
+    return hashObjects([
+      id,
+      createdAt,
+      updatedAt,
+      name,
+      price,
+      deleted,
+      personName,
+      personAge
+    ]);
+  }
+
+  @override
+  String toString() {
+    return 'OrderWithPersonInfo(id=$id, createdAt=$createdAt, updatedAt=$updatedAt, name=$name, price=$price, deleted=$deleted, personName=$personName, personAge=$personAge)';
+  }
+
+  Map<String, dynamic> toJson() {
+    return OrderWithPersonInfoSerializer.toMap(this);
+  }
+}
+
+// **************************************************************************
+// SerializerGenerator
+// **************************************************************************
+
+const PersonOrderSerializer personOrderSerializer = PersonOrderSerializer();
+
+class PersonOrderEncoder extends Converter<PersonOrder, Map> {
+  const PersonOrderEncoder();
+
+  @override
+  Map convert(PersonOrder model) => PersonOrderSerializer.toMap(model);
+}
+
+class PersonOrderDecoder extends Converter<Map, PersonOrder> {
+  const PersonOrderDecoder();
+
+  @override
+  PersonOrder convert(Map map) => PersonOrderSerializer.fromMap(map);
+}
+
+class PersonOrderSerializer extends Codec<PersonOrder, Map> {
+  const PersonOrderSerializer();
+
+  @override
+  PersonOrderEncoder get encoder => const PersonOrderEncoder();
+  @override
+  PersonOrderDecoder get decoder => const PersonOrderDecoder();
+  static PersonOrder fromMap(Map map) {
+    return PersonOrder(
+        id: map['id'] as String?,
+        createdAt: map['created_at'] != null
+            ? (map['created_at'] is DateTime
+                ? (map['created_at'] as DateTime)
+                : DateTime.parse(map['created_at'].toString()))
+            : null,
+        updatedAt: map['updated_at'] != null
+            ? (map['updated_at'] is DateTime
+                ? (map['updated_at'] as DateTime)
+                : DateTime.parse(map['updated_at'].toString()))
+            : null,
+        personId: map['person_id'] as int?,
+        name: map['name'] as String?,
+        price: map['price'] as double?,
+        deleted: map['deleted'] as bool?);
+  }
+
+  static Map<String, dynamic> toMap(_PersonOrder? model) {
+    if (model == null) {
+      return {};
+    }
+    return {
+      'id': model.id,
+      'created_at': model.createdAt?.toIso8601String(),
+      'updated_at': model.updatedAt?.toIso8601String(),
+      'person_id': model.personId,
+      'name': model.name,
+      'price': model.price,
+      'deleted': model.deleted
+    };
+  }
+}
+
+abstract class PersonOrderFields {
+  static const List<String> allFields = <String>[
+    id,
+    createdAt,
+    updatedAt,
+    personId,
+    name,
+    price,
+    deleted
+  ];
+
+  static const String id = 'id';
+
+  static const String createdAt = 'created_at';
+
+  static const String updatedAt = 'updated_at';
+
+  static const String personId = 'person_id';
+
+  static const String name = 'name';
+
+  static const String price = 'price';
+
+  static const String deleted = 'deleted';
+}
+
+const OrderWithPersonInfoSerializer orderWithPersonInfoSerializer =
+    OrderWithPersonInfoSerializer();
+
+class OrderWithPersonInfoEncoder extends Converter<OrderWithPersonInfo, Map> {
+  const OrderWithPersonInfoEncoder();
+
+  @override
+  Map convert(OrderWithPersonInfo model) =>
+      OrderWithPersonInfoSerializer.toMap(model);
+}
+
+class OrderWithPersonInfoDecoder extends Converter<Map, OrderWithPersonInfo> {
+  const OrderWithPersonInfoDecoder();
+
+  @override
+  OrderWithPersonInfo convert(Map map) =>
+      OrderWithPersonInfoSerializer.fromMap(map);
+}
+
+class OrderWithPersonInfoSerializer extends Codec<OrderWithPersonInfo, Map> {
+  const OrderWithPersonInfoSerializer();
+
+  @override
+  OrderWithPersonInfoEncoder get encoder => const OrderWithPersonInfoEncoder();
+  @override
+  OrderWithPersonInfoDecoder get decoder => const OrderWithPersonInfoDecoder();
+  static OrderWithPersonInfo fromMap(Map map) {
+    return OrderWithPersonInfo(
+        id: map['id'] as String?,
+        createdAt: map['created_at'] != null
+            ? (map['created_at'] is DateTime
+                ? (map['created_at'] as DateTime)
+                : DateTime.parse(map['created_at'].toString()))
+            : null,
+        updatedAt: map['updated_at'] != null
+            ? (map['updated_at'] is DateTime
+                ? (map['updated_at'] as DateTime)
+                : DateTime.parse(map['updated_at'].toString()))
+            : null,
+        name: map['name'] as String?,
+        price: map['price'] as double?,
+        deleted: map['deleted'] as bool?,
+        personName: map['person_name'] as String?,
+        personAge: map['person_age'] as int?);
+  }
+
+  static Map<String, dynamic> toMap(_OrderWithPersonInfo? model) {
+    if (model == null) {
+      return {};
+    }
+    return {
+      'id': model.id,
+      'created_at': model.createdAt?.toIso8601String(),
+      'updated_at': model.updatedAt?.toIso8601String(),
+      'name': model.name,
+      'price': model.price,
+      'deleted': model.deleted,
+      'person_name': model.personName,
+      'person_age': model.personAge
+    };
+  }
+}
+
+abstract class OrderWithPersonInfoFields {
+  static const List<String> allFields = <String>[
+    id,
+    createdAt,
+    updatedAt,
+    name,
+    price,
+    deleted,
+    personName,
+    personAge
+  ];
+
+  static const String id = 'id';
+
+  static const String createdAt = 'created_at';
+
+  static const String updatedAt = 'updated_at';
+
+  static const String name = 'name';
+
+  static const String price = 'price';
+
+  static const String deleted = 'deleted';
+
+  static const String personName = 'person_name';
+
+  static const String personAge = 'person_age';
+}

packages/orm/angel_orm_test/lib/src/models/tree.g.dart

@@ -65,8 +65,6 @@ class TreeQuery extends Query<Tree, TreeQueryWhere> {
   @override
   final TreeQueryValues values = TreeQueryValues();
 
-  List<String> _selectedFields = [];
-
   TreeQueryWhere? _where;
 
   late FruitQuery _fruits;
@@ -83,15 +81,7 @@ class TreeQuery extends Query<Tree, TreeQueryWhere> {
 
   @override
   List<String> get fields {
-    const _fields = ['id', 'created_at', 'updated_at', 'rings'];
+    return const ['id', 'created_at', 'updated_at', 'rings'];
-    return _selectedFields.isEmpty
-        ? _fields
-        : _fields.where((field) => _selectedFields.contains(field)).toList();
-  }
-
-  TreeQuery select(List<String> selectedFields) {
-    _selectedFields = selectedFields;
-    return this;
   }
 
   @override
@@ -104,17 +94,17 @@ class TreeQuery extends Query<Tree, TreeQueryWhere> {
     return TreeQueryWhere(this);
   }
 
-  Optional<Tree> parseRow(List row) {
+  static Optional<Tree> parseRow(List row) {
     if (row.every((x) => x == null)) {
       return Optional.empty();
     }
     var model = Tree(
-        id: fields.contains('id') ? row[0].toString() : null,
+        id: row[0].toString(),
-        createdAt: fields.contains('created_at') ? (row[1] as DateTime?) : null,
+        createdAt: (row[1] as DateTime?),
-        updatedAt: fields.contains('updated_at') ? (row[2] as DateTime?) : null,
+        updatedAt: (row[2] as DateTime?),
-        rings: fields.contains('rings') ? (row[3] as int?) : null);
+        rings: (row[3] as int?));
     if (row.length > 4) {
-      var modelOpt = FruitQuery().parseRow(row.skip(4).take(5).toList());
+      var modelOpt = FruitQuery.parseRow(row.skip(4).take(5).toList());
       modelOpt.ifPresent((m) {
         model = model.copyWith(fruits: [m]);
       });
@@ -250,8 +240,6 @@ class FruitQuery extends Query<Fruit, FruitQueryWhere> {
   @override
   final FruitQueryValues values = FruitQueryValues();
 
-  List<String> _selectedFields = [];
-
   FruitQueryWhere? _where;
 
   @override
@@ -266,21 +254,7 @@ class FruitQuery extends Query<Fruit, FruitQueryWhere> {
 
   @override
   List<String> get fields {
-    const _fields = [
+    return const ['id', 'created_at', 'updated_at', 'tree_id', 'common_name'];
-      'id',
-      'created_at',
-      'updated_at',
-      'tree_id',
-      'common_name'
-    ];
-    return _selectedFields.isEmpty
-        ? _fields
-        : _fields.where((field) => _selectedFields.contains(field)).toList();
-  }
-
-  FruitQuery select(List<String> selectedFields) {
-    _selectedFields = selectedFields;
-    return this;
   }
 
   @override
@@ -293,17 +267,16 @@ class FruitQuery extends Query<Fruit, FruitQueryWhere> {
     return FruitQueryWhere(this);
   }
 
-  Optional<Fruit> parseRow(List row) {
+  static Optional<Fruit> parseRow(List row) {
     if (row.every((x) => x == null)) {
       return Optional.empty();
     }
     var model = Fruit(
-        id: fields.contains('id') ? row[0].toString() : null,
+        id: row[0].toString(),
-        createdAt: fields.contains('created_at') ? (row[1] as DateTime?) : null,
+        createdAt: (row[1] as DateTime?),
-        updatedAt: fields.contains('updated_at') ? (row[2] as DateTime?) : null,
+        updatedAt: (row[2] as DateTime?),
-        treeId: fields.contains('tree_id') ? (row[3] as int?) : null,
+        treeId: (row[3] as int?),
-        commonName:
+        commonName: (row[4] as String?));
-            fields.contains('common_name') ? (row[4] as String?) : null);
     return Optional.of(model);
   }
 

packages/orm/angel_orm_test/lib/src/models/unorthodox.g.dart

@@ -116,8 +116,6 @@ class UnorthodoxQuery extends Query<Unorthodox, UnorthodoxQueryWhere> {
   @override
   final UnorthodoxQueryValues values = UnorthodoxQueryValues();
 
-  List<String> _selectedFields = [];
-
   UnorthodoxQueryWhere? _where;
 
   @override
@@ -132,15 +130,7 @@ class UnorthodoxQuery extends Query<Unorthodox, UnorthodoxQueryWhere> {
 
   @override
   List<String> get fields {
-    const _fields = ['name'];
+    return const ['name'];
-    return _selectedFields.isEmpty
-        ? _fields
-        : _fields.where((field) => _selectedFields.contains(field)).toList();
-  }
-
-  UnorthodoxQuery select(List<String> selectedFields) {
-    _selectedFields = selectedFields;
-    return this;
   }
 
   @override
@@ -153,12 +143,11 @@ class UnorthodoxQuery extends Query<Unorthodox, UnorthodoxQueryWhere> {
     return UnorthodoxQueryWhere(this);
   }
 
-  Optional<Unorthodox> parseRow(List row) {
+  static Optional<Unorthodox> parseRow(List row) {
     if (row.every((x) => x == null)) {
       return Optional.empty();
     }
-    var model =
+    var model = Unorthodox(name: (row[0] as String?));
-        Unorthodox(name: fields.contains('name') ? (row[0] as String?) : null);
     return Optional.of(model);
   }
 
@@ -232,8 +221,6 @@ class WeirdJoinQuery extends Query<WeirdJoin, WeirdJoinQueryWhere> {
   @override
   final WeirdJoinQueryValues values = WeirdJoinQueryValues();
 
-  List<String> _selectedFields = [];
-
   WeirdJoinQueryWhere? _where;
 
   late UnorthodoxQuery _unorthodox;
@@ -254,15 +241,7 @@ class WeirdJoinQuery extends Query<WeirdJoin, WeirdJoinQueryWhere> {
 
   @override
   List<String> get fields {
-    const _fields = ['id', 'join_name'];
+    return const ['id', 'join_name'];
-    return _selectedFields.isEmpty
-        ? _fields
-        : _fields.where((field) => _selectedFields.contains(field)).toList();
-  }
-
-  WeirdJoinQuery select(List<String> selectedFields) {
-    _selectedFields = selectedFields;
-    return this;
   }
 
   @override
@@ -275,31 +254,31 @@ class WeirdJoinQuery extends Query<WeirdJoin, WeirdJoinQueryWhere> {
     return WeirdJoinQueryWhere(this);
   }
 
-  Optional<WeirdJoin> parseRow(List row) {
+  static Optional<WeirdJoin> parseRow(List row) {
     if (row.every((x) => x == null)) {
       return Optional.empty();
     }
-    var model = WeirdJoin(id: fields.contains('id') ? (row[0] as int?) : null);
+    var model = WeirdJoin(id: (row[0] as int?));
     if (row.length > 2) {
-      var modelOpt = UnorthodoxQuery().parseRow(row.skip(2).take(1).toList());
+      var modelOpt = UnorthodoxQuery.parseRow(row.skip(2).take(1).toList());
       modelOpt.ifPresent((m) {
         model = model.copyWith(unorthodox: m);
       });
     }
     if (row.length > 3) {
-      var modelOpt = SongQuery().parseRow(row.skip(3).take(5).toList());
+      var modelOpt = SongQuery.parseRow(row.skip(3).take(5).toList());
       modelOpt.ifPresent((m) {
         model = model.copyWith(song: m);
       });
     }
     if (row.length > 8) {
-      var modelOpt = NumbaQuery().parseRow(row.skip(8).take(2).toList());
+      var modelOpt = NumbaQuery.parseRow(row.skip(8).take(2).toList());
       modelOpt.ifPresent((m) {
         model = model.copyWith(numbas: [m]);
       });
     }
     if (row.length > 10) {
-      var modelOpt = FooQuery().parseRow(row.skip(10).take(1).toList());
+      var modelOpt = FooQuery.parseRow(row.skip(10).take(1).toList());
       modelOpt.ifPresent((m) {
         model = model.copyWith(foos: [m]);
       });
@@ -437,8 +416,6 @@ class SongQuery extends Query<Song, SongQueryWhere> {
   @override
   final SongQueryValues values = SongQueryValues();
 
-  List<String> _selectedFields = [];
-
   SongQueryWhere? _where;
 
   @override
@@ -453,21 +430,7 @@ class SongQuery extends Query<Song, SongQueryWhere> {
 
   @override
   List<String> get fields {
-    const _fields = [
+    return const ['id', 'created_at', 'updated_at', 'weird_join_id', 'title'];
-      'id',
-      'created_at',
-      'updated_at',
-      'weird_join_id',
-      'title'
-    ];
-    return _selectedFields.isEmpty
-        ? _fields
-        : _fields.where((field) => _selectedFields.contains(field)).toList();
-  }
-
-  SongQuery select(List<String> selectedFields) {
-    _selectedFields = selectedFields;
-    return this;
   }
 
   @override
@@ -480,16 +443,16 @@ class SongQuery extends Query<Song, SongQueryWhere> {
     return SongQueryWhere(this);
   }
 
-  Optional<Song> parseRow(List row) {
+  static Optional<Song> parseRow(List row) {
     if (row.every((x) => x == null)) {
       return Optional.empty();
     }
     var model = Song(
-        id: fields.contains('id') ? row[0].toString() : null,
+        id: row[0].toString(),
-        createdAt: fields.contains('created_at') ? (row[1] as DateTime?) : null,
+        createdAt: (row[1] as DateTime?),
-        updatedAt: fields.contains('updated_at') ? (row[2] as DateTime?) : null,
+        updatedAt: (row[2] as DateTime?),
-        weirdJoinId: fields.contains('weird_join_id') ? (row[3] as int?) : null,
+        weirdJoinId: (row[3] as int?),
-        title: fields.contains('title') ? (row[4] as String?) : null);
+        title: (row[4] as String?));
     return Optional.of(model);
   }
 
@@ -572,8 +535,6 @@ class NumbaQuery extends Query<Numba, NumbaQueryWhere> {
   @override
   final NumbaQueryValues values = NumbaQueryValues();
 
-  List<String> _selectedFields = [];
-
   NumbaQueryWhere? _where;
 
   @override
@@ -588,15 +549,7 @@ class NumbaQuery extends Query<Numba, NumbaQueryWhere> {
 
   @override
   List<String> get fields {
-    const _fields = ['i', 'parent'];
+    return const ['i', 'parent'];
-    return _selectedFields.isEmpty
-        ? _fields
-        : _fields.where((field) => _selectedFields.contains(field)).toList();
-  }
-
-  NumbaQuery select(List<String> selectedFields) {
-    _selectedFields = selectedFields;
-    return this;
   }
 
   @override
@@ -609,13 +562,11 @@ class NumbaQuery extends Query<Numba, NumbaQueryWhere> {
     return NumbaQueryWhere(this);
   }
 
-  Optional<Numba> parseRow(List row) {
+  static Optional<Numba> parseRow(List row) {
     if (row.every((x) => x == null)) {
       return Optional.empty();
     }
-    var model = Numba(
+    var model = Numba(i: (row[0] as int?), parent: (row[1] as int?));
-        i: fields.contains('i') ? (row[0] as int?) : null,
-        parent: fields.contains('parent') ? (row[1] as int?) : null);
     return Optional.of(model);
   }
 
@@ -678,8 +629,6 @@ class FooQuery extends Query<Foo, FooQueryWhere> {
   @override
   final FooQueryValues values = FooQueryValues();
 
-  List<String> _selectedFields = [];
-
   FooQueryWhere? _where;
 
   @override
@@ -694,15 +643,7 @@ class FooQuery extends Query<Foo, FooQueryWhere> {
 
   @override
   List<String> get fields {
-    const _fields = ['bar'];
+    return const ['bar'];
-    return _selectedFields.isEmpty
-        ? _fields
-        : _fields.where((field) => _selectedFields.contains(field)).toList();
-  }
-
-  FooQuery select(List<String> selectedFields) {
-    _selectedFields = selectedFields;
-    return this;
   }
 
   @override
@@ -715,13 +656,13 @@ class FooQuery extends Query<Foo, FooQueryWhere> {
     return FooQueryWhere(this);
   }
 
-  Optional<Foo> parseRow(List row) {
+  static Optional<Foo> parseRow(List row) {
     if (row.every((x) => x == null)) {
       return Optional.empty();
     }
-    var model = Foo(bar: fields.contains('bar') ? (row[0] as String?) : null);
+    var model = Foo(bar: (row[0] as String?));
     if (row.length > 1) {
-      var modelOpt = WeirdJoinQuery().parseRow(row.skip(1).take(2).toList());
+      var modelOpt = WeirdJoinQuery.parseRow(row.skip(1).take(2).toList());
       modelOpt.ifPresent((m) {
         model = model.copyWith(weirdJoins: [m]);
       });
@@ -843,8 +784,6 @@ class FooPivotQuery extends Query<FooPivot, FooPivotQueryWhere> {
   @override
   final FooPivotQueryValues values = FooPivotQueryValues();
 
-  List<String> _selectedFields = [];
-
   FooPivotQueryWhere? _where;
 
   late WeirdJoinQuery _weirdJoin;
@@ -863,15 +802,7 @@ class FooPivotQuery extends Query<FooPivot, FooPivotQueryWhere> {
 
   @override
   List<String> get fields {
-    const _fields = ['weird_join_id', 'foo_bar'];
+    return const ['weird_join_id', 'foo_bar'];
-    return _selectedFields.isEmpty
-        ? _fields
-        : _fields.where((field) => _selectedFields.contains(field)).toList();
-  }
-
-  FooPivotQuery select(List<String> selectedFields) {
-    _selectedFields = selectedFields;
-    return this;
   }
 
   @override
@@ -884,19 +815,19 @@ class FooPivotQuery extends Query<FooPivot, FooPivotQueryWhere> {
     return FooPivotQueryWhere(this);
   }
 
-  Optional<FooPivot> parseRow(List row) {
+  static Optional<FooPivot> parseRow(List row) {
     if (row.every((x) => x == null)) {
       return Optional.empty();
     }
     var model = FooPivot();
     if (row.length > 2) {
-      var modelOpt = WeirdJoinQuery().parseRow(row.skip(2).take(2).toList());
+      var modelOpt = WeirdJoinQuery.parseRow(row.skip(2).take(2).toList());
       modelOpt.ifPresent((m) {
         model = model.copyWith(weirdJoin: m);
       });
     }
     if (row.length > 4) {
-      var modelOpt = FooQuery().parseRow(row.skip(4).take(1).toList());
+      var modelOpt = FooQuery.parseRow(row.skip(4).take(1).toList());
       modelOpt.ifPresent((m) {
         model = model.copyWith(foo: m);
       });

packages/orm/angel_orm_test/lib/src/models/user.g.dart

@@ -77,8 +77,6 @@ class UserQuery extends Query<User, UserQueryWhere> {
   @override
   final UserQueryValues values = UserQueryValues();
 
-  List<String> _selectedFields = [];
-
   UserQueryWhere? _where;
 
   @override
@@ -93,7 +91,7 @@ class UserQuery extends Query<User, UserQueryWhere> {
 
   @override
   List<String> get fields {
-    const _fields = [
+    return const [
       'id',
       'created_at',
       'updated_at',
@@ -101,14 +99,6 @@ class UserQuery extends Query<User, UserQueryWhere> {
       'password',
       'email'
     ];
-    return _selectedFields.isEmpty
-        ? _fields
-        : _fields.where((field) => _selectedFields.contains(field)).toList();
-  }
-
-  UserQuery select(List<String> selectedFields) {
-    _selectedFields = selectedFields;
-    return this;
   }
 
   @override
@@ -121,19 +111,19 @@ class UserQuery extends Query<User, UserQueryWhere> {
     return UserQueryWhere(this);
   }
 
-  Optional<User> parseRow(List row) {
+  static Optional<User> parseRow(List row) {
     if (row.every((x) => x == null)) {
       return Optional.empty();
     }
     var model = User(
-        id: fields.contains('id') ? row[0].toString() : null,
+        id: row[0].toString(),
-        createdAt: fields.contains('created_at') ? (row[1] as DateTime?) : null,
+        createdAt: (row[1] as DateTime?),
-        updatedAt: fields.contains('updated_at') ? (row[2] as DateTime?) : null,
+        updatedAt: (row[2] as DateTime?),
-        username: fields.contains('username') ? (row[3] as String?) : null,
+        username: (row[3] as String?),
-        password: fields.contains('password') ? (row[4] as String?) : null,
+        password: (row[4] as String?),
-        email: fields.contains('email') ? (row[5] as String?) : null);
+        email: (row[5] as String?));
     if (row.length > 6) {
-      var modelOpt = RoleQuery().parseRow(row.skip(6).take(4).toList());
+      var modelOpt = RoleQuery.parseRow(row.skip(6).take(4).toList());
       modelOpt.ifPresent((m) {
         model = model.copyWith(roles: [m]);
       });
@@ -305,8 +295,6 @@ class RoleUserQuery extends Query<RoleUser, RoleUserQueryWhere> {
   @override
   final RoleUserQueryValues values = RoleUserQueryValues();
 
-  List<String> _selectedFields = [];
-
   RoleUserQueryWhere? _where;
 
   late RoleQuery _role;
@@ -325,15 +313,7 @@ class RoleUserQuery extends Query<RoleUser, RoleUserQueryWhere> {
 
   @override
   List<String> get fields {
-    const _fields = ['role_id', 'user_id'];
+    return const ['role_id', 'user_id'];
-    return _selectedFields.isEmpty
-        ? _fields
-        : _fields.where((field) => _selectedFields.contains(field)).toList();
-  }
-
-  RoleUserQuery select(List<String> selectedFields) {
-    _selectedFields = selectedFields;
-    return this;
   }
 
   @override
@@ -346,19 +326,19 @@ class RoleUserQuery extends Query<RoleUser, RoleUserQueryWhere> {
     return RoleUserQueryWhere(this);
   }
 
-  Optional<RoleUser> parseRow(List row) {
+  static Optional<RoleUser> parseRow(List row) {
     if (row.every((x) => x == null)) {
       return Optional.empty();
     }
     var model = RoleUser();
     if (row.length > 2) {
-      var modelOpt = RoleQuery().parseRow(row.skip(2).take(4).toList());
+      var modelOpt = RoleQuery.parseRow(row.skip(2).take(4).toList());
       modelOpt.ifPresent((m) {
         model = model.copyWith(role: m);
       });
     }
     if (row.length > 6) {
-      var modelOpt = UserQuery().parseRow(row.skip(6).take(6).toList());
+      var modelOpt = UserQuery.parseRow(row.skip(6).take(6).toList());
       modelOpt.ifPresent((m) {
         model = model.copyWith(user: m);
       });
@@ -444,8 +424,6 @@ class RoleQuery extends Query<Role, RoleQueryWhere> {
   @override
   final RoleQueryValues values = RoleQueryValues();
 
-  List<String> _selectedFields = [];
-
   RoleQueryWhere? _where;
 
   @override
@@ -460,15 +438,7 @@ class RoleQuery extends Query<Role, RoleQueryWhere> {
 
   @override
   List<String> get fields {
-    const _fields = ['id', 'created_at', 'updated_at', 'name'];
+    return const ['id', 'created_at', 'updated_at', 'name'];
-    return _selectedFields.isEmpty
-        ? _fields
-        : _fields.where((field) => _selectedFields.contains(field)).toList();
-  }
-
-  RoleQuery select(List<String> selectedFields) {
-    _selectedFields = selectedFields;
-    return this;
   }
 
   @override
@@ -481,17 +451,17 @@ class RoleQuery extends Query<Role, RoleQueryWhere> {
     return RoleQueryWhere(this);
   }
 
-  Optional<Role> parseRow(List row) {
+  static Optional<Role> parseRow(List row) {
     if (row.every((x) => x == null)) {
       return Optional.empty();
     }
     var model = Role(
-        id: fields.contains('id') ? row[0].toString() : null,
+        id: row[0].toString(),
-        createdAt: fields.contains('created_at') ? (row[1] as DateTime?) : null,
+        createdAt: (row[1] as DateTime?),
-        updatedAt: fields.contains('updated_at') ? (row[2] as DateTime?) : null,
+        updatedAt: (row[2] as DateTime?),
-        name: fields.contains('name') ? (row[3] as String?) : null);
+        name: (row[3] as String?));
     if (row.length > 4) {
-      var modelOpt = UserQuery().parseRow(row.skip(4).take(6).toList());
+      var modelOpt = UserQuery.parseRow(row.skip(4).take(6).toList());
       modelOpt.ifPresent((m) {
         model = model.copyWith(users: [m]);
       });

packages/orm/angel_orm_test/lib/src/models/world.g.dart

@@ -35,8 +35,6 @@ class WorldQuery extends Query<World, WorldQueryWhere> {
   @override
   final WorldQueryValues values = WorldQueryValues();
 
-  List<String> _selectedFields = [];
-
   WorldQueryWhere? _where;
 
   @override
@@ -51,15 +49,7 @@ class WorldQuery extends Query<World, WorldQueryWhere> {
 
   @override
   List<String> get fields {
-    const _fields = ['id', 'random_number'];
+    return const ['id', 'random_number'];
-    return _selectedFields.isEmpty
-        ? _fields
-        : _fields.where((field) => _selectedFields.contains(field)).toList();
-  }
-
-  WorldQuery select(List<String> selectedFields) {
-    _selectedFields = selectedFields;
-    return this;
   }
 
   @override
@@ -72,14 +62,11 @@ class WorldQuery extends Query<World, WorldQueryWhere> {
     return WorldQueryWhere(this);
   }
 
-  Optional<World> parseRow(List row) {
+  static Optional<World> parseRow(List row) {
     if (row.every((x) => x == null)) {
       return Optional.empty();
     }
-    var model = World(
+    var model = World(id: (row[0] as int?), randomNumber: (row[1] as int?));
-        id: fields.contains('id') ? (row[0] as int?) : null,
-        randomNumber:
-            fields.contains('random_number') ? (row[1] as int?) : null);
     return Optional.of(model);
   }