Merge pull request #120 from dukefirehawk/feature/upgrade_postgres

Feature/upgrade postgres

.vscode/settings.json

@@ -12,7 +12,7 @@
       "js": []
     },
     "editor.codeActionsOnSave": {
-      "source.fixAll.markdownlint": true
+      "source.fixAll.markdownlint": "explicit"
-  },
+    },
   "cmake.configureOnOpen": false
 }

packages/orm/angel_migration_runner/CHANGELOG.md

@@ -1,5 +1,9 @@
 # Change Log
 
+## 8.2.0
+
+* [BREAKING] Updated `postgres` to 3.0.0
+
 ## 8.1.1
 
 * Updated repository link

packages/orm/angel_migration_runner/README.md

@@ -19,10 +19,15 @@ Supported database:
 
 * Use `MySqlMigrationRunner` to perform database migration for MySQL and MariaDB. This runner is using [`mysql_client`](https://pub.dev/packages?q=mysql_client) driver.
 
-* Use `MariaDbMigrationRunner` to perform database migration for MariaDB. This runner is using[`mysql1`](https://pub.dev/packages?q=mysql1) driver.
+* Use `MariaDbMigrationRunner` to perform database migration for MariaDB. This runner is using [`mysql1`](https://pub.dev/packages?q=mysql1) driver.
 
 ## Supported Operations
 
-* reset - Clear out all records in the `migrations` table and drop all the managed ORM tables.
+* reset   - Clear out all records in the `migrations` table and drop all the ORM related tables.
-* up - Generate all the managed ORM tables based on the ORM models.
+* up      - Generate all the tables based on the ORM models.
 * refresh - Run `reset` follow by `up`
+
+## To do
+
+* Update existing tables
+* Reverse engineer tables into models

packages/orm/angel_migration_runner/example/main.dart

@@ -1,17 +1,30 @@
+import 'dart:io';
+
 import 'package:angel3_migration/angel3_migration.dart';
 import 'package:angel3_migration_runner/angel3_migration_runner.dart';
 import 'package:angel3_migration_runner/postgres.dart';
-import 'package:angel3_migration_runner/mysql.dart';
 import 'package:angel3_orm/angel3_orm.dart';
 import 'package:postgres/postgres.dart';
-import 'package:mysql_client/mysql_client.dart';
 
 import 'todo.dart';
 
 void main(List<String> args) async {
+  var host = Platform.environment['DB_HOST'] ?? 'localhost';
+  var database = Platform.environment['DB_NAME'] ?? 'demo';
+  var username = Platform.environment['DB_USERNAME'] ?? 'demouser';
+  var password = Platform.environment['DB_PASSWORD'] ?? 'demo123';
+
+  print("$host $database $username $password");
+
+  Connection conn = await Connection.open(Endpoint(
+      host: host,
+      port: 5432,
+      database: database,
+      username: username,
+      password: password));
+
   var postgresqlMigrationRunner = PostgresMigrationRunner(
-    PostgreSQLConnection('localhost', 5432, 'demo',
+    conn,
-        username: 'demouser', password: 'demo123'),
     migrations: [
       UserMigration(),
       TodoMigration(),
@@ -19,12 +32,13 @@ void main(List<String> args) async {
     ],
   );
 
+  /*
   var mySQLConn = await MySQLConnection.createConnection(
-      host: "localhost",
+      host: host,
       port: 3306,
-      databaseName: "orm_test",
+      databaseName: database,
-      userName: "test",
+      userName: username,
-      password: "Test123*",
+      password: password,
       secure: false);
 
   // ignore: unused_local_variable
@@ -36,6 +50,7 @@ void main(List<String> args) async {
       FooMigration(),
     ],
   );
+  */
 
   runMigrations(postgresqlMigrationRunner, args);
 }

packages/orm/angel_migration_runner/lib/src/postgres/runner.dart

@@ -11,7 +11,7 @@ class PostgresMigrationRunner implements MigrationRunner {
   final _log = Logger('PostgresMigrationRunner');
 
   final Map<String, Migration> migrations = {};
-  final PostgreSQLConnection connection;
+  final Connection connection;
   final Queue<Migration> _migrationQueue = Queue();
   bool _connected = false;
 
@@ -34,7 +34,8 @@ class PostgresMigrationRunner implements MigrationRunner {
     }
 
     if (!_connected) {
-      await connection.open();
+      //await connection.open();
+      //Connection.open(_endpoint!, settings: _settings);
       _connected = true;
     }
 
@@ -55,7 +56,7 @@ class PostgresMigrationRunner implements MigrationRunner {
   @override
   Future up() async {
     await _init();
-    var r = await connection.query('SELECT path from migrations;');
+    var r = await connection.execute('SELECT path from migrations;');
     var existing = r.expand((x) => x).cast<String>();
     var toRun = <String>[];
 
@@ -64,7 +65,7 @@ class PostgresMigrationRunner implements MigrationRunner {
     });
 
     if (toRun.isNotEmpty) {
-      var r = await connection.query('SELECT MAX(batch) from migrations;');
+      var r = await connection.execute('SELECT MAX(batch) from migrations;');
       var curBatch = (r[0][0] ?? 0) as int;
       var batch = curBatch + 1;
 
@@ -74,16 +75,15 @@ class PostgresMigrationRunner implements MigrationRunner {
         migration.up(schema);
         _log.info('Added "$k" into "migrations" table.');
         await schema.run(connection).then((_) {
-          return connection.transaction((ctx) async {
+          return connection.runTx((ctx) async {
-            var result = await ctx.query(
+            var result = await ctx.execute(
                 "INSERT INTO MIGRATIONS (batch, path) VALUES ($batch, '$k')");
 
-            return result.affectedRowCount;
+            return result.affectedRows;
           });
-          //return connection.execute(
-          //    'INSERT INTO MIGRATIONS (batch, path) VALUES ($batch, \'$k\');');
         }).catchError((e) {
           _log.severe('Failed to insert into "migrations" table.');
+          return -1;
         });
       }
     } else {
@@ -95,11 +95,10 @@ class PostgresMigrationRunner implements MigrationRunner {
   Future rollback() async {
     await _init();
 
-    PostgreSQLResult r =
+    Result r = await connection.execute('SELECT MAX(batch) from migrations;');
-        await connection.query('SELECT MAX(batch) from migrations;');
     var curBatch = (r[0][0] ?? 0) as int;
     r = await connection
-        .query('SELECT path from migrations WHERE batch = $curBatch;');
+        .execute('SELECT path from migrations WHERE batch = $curBatch;');
     var existing = r.expand((x) => x).cast<String>();
     var toRun = <String>[];
 
@@ -127,7 +126,7 @@ class PostgresMigrationRunner implements MigrationRunner {
   Future reset() async {
     await _init();
     var r = await connection
-        .query('SELECT path from migrations ORDER BY batch DESC;');
+        .execute('SELECT path from migrations ORDER BY batch DESC;');
     var existing = r.expand((x) => x).cast<String>();
     var toRun = existing.where(migrations.containsKey).toList();
 

packages/orm/angel_migration_runner/lib/src/postgres/schema.dart

@@ -14,18 +14,18 @@ class PostgresSchema extends Schema {
 
   factory PostgresSchema() => PostgresSchema._(StringBuffer(), 0);
 
-  Future<int> run(PostgreSQLConnection connection) async {
+  Future<int> run(Connection connection) async {
     //return connection.execute(compile());
-    var result = await connection.transaction((ctx) async {
+    var result = await connection.runTx((ctx) async {
       var sql = compile();
-      var result = await ctx.query(sql).catchError((e) {
+      var result = await ctx.execute(sql).catchError((e) {
         _log.severe('Failed to run query: [ $sql ]', e);
         throw Exception(e);
       });
-      return result.affectedRowCount;
+      return result.affectedRows;
     });
 
-    return (result is int) ? result : 0;
+    return result;
   }
 
   String compile() => _buf.toString();

packages/orm/angel_migration_runner/pubspec.yaml

@@ -1,5 +1,5 @@
 name: angel3_migration_runner
-version: 8.1.1
+version: 8.2.0
 description: Command-line based database migration runner for Angel3's ORM.
 homepage: https://angel3-framework.web.app/
 repository: https://github.com/dart-backend/angel/tree/master/packages/orm/angel_migration_runner
@@ -11,7 +11,7 @@ dependencies:
   angel3_orm: ^8.0.0
   args: ^2.4.0
   charcode: ^1.3.0
-  postgres: ^2.6.0
+  postgres: ^3.0.0
   mysql_client: ^0.0.27
   mysql1: ^0.20.0
   logging: ^1.2.0

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

@@ -392,7 +392,7 @@ abstract class Query<T, Where extends QueryWhere> extends QueryBase<T> {
         throw ArgumentError("Unsupported database dialect.");
       }
 
-      //_log.warning("Insert Query = $sql");
+      _log.fine("Insert Query = $sql");
 
       return executor
           .query(tableName, sql, substitutionValues,

packages/orm/angel_orm_postgres/CHANGELOG.md

@@ -1,13 +1,11 @@
 # Change Log
 
-## 8.1.1
-
-* Updated repository link
-
 ## 8.1.0
 
+* Updated repository links
 * Updated `lints` to 3.0.0
 * Fixed linter warnings
+* [BREAKING] Updated `postgres` to 3.0.0
 
 ## 8.0.0
 

packages/orm/angel_orm_postgres/README.md

@@ -12,3 +12,7 @@ PostgreSQL support for Angel3 ORM.
 * PostgreSQL version 10 or greater
 
 For documentation about the ORM, see [Developer Guide](https://angel3-docs.dukefirehawk.com/guides/orm)
+
+## Migration
+
+Posrgresql is upgraded from 2.x.x to 3.x.x in version 8.1.0.

packages/orm/angel_orm_postgres/example/main.dart

@@ -1,20 +1,19 @@
 import 'dart:io';
 import 'package:angel3_orm_postgres/angel3_orm_postgres.dart';
-import 'package:postgres_pool/postgres_pool.dart';
+import 'package:postgres/postgres.dart';
 
 void main() async {
-  var executor = PostgreSqlPoolExecutor(PgPool(
+  var executor = PostgreSqlPoolExecutor(Pool.withEndpoints([
-    PgEndpoint(
+    Endpoint(
-      host: 'localhost',
+      host: Platform.environment['POSTGRES_HOSTNAME'] ?? 'localhost',
       port: 5432,
       database: Platform.environment['POSTGRES_DB'] ?? 'orm_test',
       username: Platform.environment['POSTGRES_USERNAME'] ?? 'test',
       password: Platform.environment['POSTGRES_PASSWORD'] ?? 'test123',
-    ),
+    )
-    settings: PgPoolSettings()
+  ],
-      ..maxConnectionAge = Duration(hours: 1)
+      settings: PoolSettings(
-      ..concurrency = 5,
+          maxConnectionAge: Duration(hours: 1), maxConnectionCount: 5)));
-  ));
 
   var rows = await executor.query('users', 'SELECT * FROM users', {});
   print(rows);

packages/orm/angel_orm_postgres/lib/src/orm_postgres.dart

@@ -2,40 +2,46 @@ import 'dart:async';
 import 'dart:convert';
 import 'package:angel3_orm/angel3_orm.dart';
 import 'package:logging/logging.dart';
-import 'package:pool/pool.dart';
 import 'package:postgres/postgres.dart';
 
 /// A [QueryExecutor] that queries a PostgreSQL database.
 class PostgreSqlExecutor extends QueryExecutor {
-  PostgreSQLExecutionContext _connection;
+  final Dialect _dialect = const PostgreSQLDialect();
+
+  ConnectionSettings? _settings;
+  Endpoint? _endpoint;
+
+  Session _session;
 
   /// An optional [Logger] to print information to. A default logger will be used
   /// if not set
   late Logger logger;
 
-  PostgreSqlExecutor(this._connection, {Logger? logger}) {
-    this.logger = logger ?? Logger('PostgreSqlExecutor');
-  }
-
-  final Dialect _dialect = const PostgreSQLDialect();
-
   @override
   Dialect get dialect => _dialect;
 
-  /// The underlying connection.
+  /// The underlying database session.
-  PostgreSQLExecutionContext get connection => _connection;
+  Session get session => _session;
+
+  PostgreSqlExecutor(this._session,
+      {Endpoint? endpoint, ConnectionSettings? settings, Logger? logger}) {
+    this.logger = logger ?? Logger('PostgreSqlExecutor');
+
+    _settings = settings;
+    _endpoint = endpoint;
+  }
 
   /// Closes the connection.
-  Future close() {
+  Future<void> close() async {
-    if (_connection is PostgreSQLConnection) {
+    if (_session is Connection) {
-      return (_connection as PostgreSQLConnection).close();
+      await (_session as Connection).close();
-    } else {
-      return Future.value();
     }
+
+    return Future.value();
   }
 
   @override
-  Future<PostgreSQLResult> query(
+  Future<Result> query(
       String tableName, String query, Map<String, dynamic> substitutionValues,
       {String returningQuery = '', List<String> returningFields = const []}) {
     if (returningFields.isNotEmpty) {
@@ -44,8 +50,8 @@ class PostgreSqlExecutor extends QueryExecutor {
       query = '$query $returning';
     }
 
-    //logger.fine('Query: $query');
+    logger.fine('Query: $query');
-    //logger.fine('Values: $substitutionValues');
+    logger.fine('Values: $substitutionValues');
 
     // Convert List into String
     var param = <String, dynamic>{};
@@ -57,28 +63,24 @@ class PostgreSqlExecutor extends QueryExecutor {
       }
     });
 
-    return _connection
+    return _session
-        .query(query, substitutionValues: param)
+        .execute(Sql.named(query), parameters: param)
         .catchError((err) async {
       logger.warning(err);
-      if (err is PostgreSQLException) {
+      if (err is PgException) {
         // This is a hack to detect broken db connection
-        bool brokenConnection =
+        bool brokenConnection = err.message.contains("connection is not open");
-            err.message?.contains("connection is not open") ?? false;
         if (brokenConnection) {
-          if (_connection is PostgreSQLConnection) {
+          // Open a new db session
-            // Open a new db connection
+          if (_session is Connection) {
-            var currentConnection = _connection as PostgreSQLConnection;
+            (_session as Connection).close();
-            currentConnection.close();
 
             logger.warning(
                 "A broken database connection is detected. Creating a new database connection.");
-            var conn = _createNewConnection(currentConnection);
+            _session = await _createNewSession();
-            await conn.open();
-            _connection = conn;
 
             // Retry the query with the new db connection
-            return _connection.query(query, substitutionValues: param);
+            return _session.execute(Sql.named(query), parameters: param);
           }
         }
       }
@@ -86,129 +88,36 @@ class PostgreSqlExecutor extends QueryExecutor {
     });
   }
 
-  // Create a new database connection from an existing connection
+  // Create a new database connection
-  PostgreSQLConnection _createNewConnection(PostgreSQLConnection conn) {
+  Future<Session> _createNewSession() async {
-    return PostgreSQLConnection(conn.host, conn.port, conn.databaseName,
+    if (_endpoint != null) {
-        username: conn.username,
+      return await Connection.open(_endpoint!, settings: _settings);
-        password: conn.password,
+    }
-        useSSL: conn.useSSL,
+
-        timeZone: conn.timeZone,
+    throw PgException("Unable to create new connection");
-        timeoutInSeconds: conn.timeoutInSeconds);
   }
 
   @override
   Future<T> transaction<T>(FutureOr<T> Function(QueryExecutor) f) async {
-    if (_connection is! PostgreSQLConnection) {
+    //if (_connection is! PostgreSQLConnection) {
-      return await f(this);
+    //  return await f(this);
-    }
+    //}
 
-    var conn = _connection as PostgreSQLConnection;
+    var conn = _session as Connection;
-    T? returnValue;
 
-    var txResult = await conn.transaction((ctx) async {
+    return await conn.runTx((session) async {
       try {
         //logger.fine('Entering transaction');
-        var tx = PostgreSqlExecutor(ctx, logger: logger);
+        var exec = PostgreSqlExecutor(session, logger: logger);
-        returnValue = await f(tx);
+        return await f(exec);
-
-        return returnValue;
       } catch (e) {
-        ctx.cancelTransaction(reason: e.toString());
+        session.rollback();
+        //ctx.cancelTransaction(reason: e.toString());
+        logger.warning("The transation has failed due to ", e);
         rethrow;
       }
-    });
+    }).onError((error, stackTrace) {
-
+      throw StateError('The transaction was cancelled.');
-    if (txResult is PostgreSQLRollback) {
-      //if (txResult.reason == null) {
-      //  throw StateError('The transaction was cancelled.');
-      //} else {
-      throw StateError(
-          'The transaction was cancelled with reason "${txResult.reason}".');
-      //}
-    } else {
-      return returnValue!;
-    }
-  }
-}
-
-/// A [QueryExecutor] that manages a pool of PostgreSQL connections.
-class PostgreSqlExecutorPool extends QueryExecutor {
-  /// The maximum amount of concurrent connections.
-  final int size;
-
-  /// Creates a new [PostgreSQLConnection], on demand.
-  ///
-  /// The created connection should **not** be open.
-  final PostgreSQLConnection Function() connectionFactory;
-
-  /// An optional [Logger] to print information to.
-  late Logger logger;
-
-  final List<PostgreSqlExecutor> _connections = [];
-  int _index = 0;
-  final Pool _pool, _connMutex = Pool(1);
-
-  PostgreSqlExecutorPool(this.size, this.connectionFactory, {Logger? logger})
-      : _pool = Pool(size) {
-    if (logger != null) {
-      this.logger = logger;
-    } else {
-      this.logger = Logger('PostgreSqlExecutorPool');
-    }
-
-    assert(size > 0, 'Connection pool cannot be empty.');
-  }
-
-  final Dialect _dialect = const PostgreSQLDialect();
-
-  @override
-  Dialect get dialect => _dialect;
-
-  /// Closes all connections.
-  Future close() async {
-    await _pool.close();
-    await _connMutex.close();
-    return Future.wait(_connections.map((c) => c.close()));
-  }
-
-  Future _open() async {
-    if (_connections.isEmpty) {
-      _connections.addAll(await Future.wait(List.generate(size, (_) async {
-        //logger.fine('Spawning connections...');
-        var conn = connectionFactory();
-        await conn.open();
-        //return conn
-        //    .open()
-        //    .then((_) => PostgreSqlExecutor(conn, logger: logger));
-        return PostgreSqlExecutor(conn, logger: logger);
-      })));
-    }
-  }
-
-  Future<PostgreSqlExecutor> _next() {
-    return _connMutex.withResource(() async {
-      await _open();
-      if (_index >= size) _index = 0;
-      return _connections[_index++];
-    });
-  }
-
-  @override
-  Future<PostgreSQLResult> query(
-      String tableName, String query, Map<String, dynamic> substitutionValues,
-      {String returningQuery = '', List<String> returningFields = const []}) {
-    return _pool.withResource(() async {
-      var executor = await _next();
-      return executor.query(tableName, query, substitutionValues,
-          returningFields: returningFields);
-    });
-  }
-
-  @override
-  Future<T> transaction<T>(FutureOr<T> Function(QueryExecutor) f) {
-    return _pool.withResource(() async {
-      var executor = await _next();
-      return executor.transaction(f);
     });
   }
 }

packages/orm/angel_orm_postgres/lib/src/orm_postgres_pool.dart

@@ -2,13 +2,13 @@ import 'dart:async';
 import 'dart:convert';
 import 'package:angel3_orm/angel3_orm.dart';
 import 'package:logging/logging.dart';
-import 'package:postgres_pool/postgres_pool.dart';
+import 'package:postgres/postgres.dart';
 
 import '../angel3_orm_postgres.dart';
 
 /// A [QueryExecutor] that uses `package:postgres_pool` for connetions pooling.
 class PostgreSqlPoolExecutor extends QueryExecutor {
-  final PgPool _pool;
+  final Pool _pool;
 
   /// An optional [Logger] to print information to.
   late Logger logger;
@@ -23,7 +23,7 @@ class PostgreSqlPoolExecutor extends QueryExecutor {
   Dialect get dialect => _dialect;
 
   /// The underlying connection pooling.
-  PgPool get pool => _pool;
+  Pool get pool => _pool;
 
   /// Closes all the connections in the pool.
   Future<dynamic> close() {
@@ -32,7 +32,7 @@ class PostgreSqlPoolExecutor extends QueryExecutor {
 
   /// Run query.
   @override
-  Future<PostgreSQLResult> query(
+  Future<Result> query(
       String tableName, String query, Map<String, dynamic> substitutionValues,
       {String returningQuery = '', List<String> returningFields = const []}) {
     if (returningFields.isNotEmpty) {
@@ -54,16 +54,16 @@ class PostgreSqlPoolExecutor extends QueryExecutor {
       }
     });
 
-    return _pool.run<PostgreSQLResult>((pgContext) async {
+    return _pool.run<Result>((session) async {
-      return await pgContext.query(query, substitutionValues: param);
+      return await session.execute(Sql.named(query), parameters: param);
     });
   }
 
   /// Run query in a transaction.
   @override
   Future<T> transaction<T>(FutureOr<T> Function(QueryExecutor) f) async {
-    return _pool.runTx((pgContext) async {
+    return _pool.runTx((session) async {
-      var exec = PostgreSqlExecutor(pgContext, logger: logger);
+      var exec = PostgreSqlExecutor(session, logger: logger);
       return await f(exec);
     });
   }

packages/orm/angel_orm_postgres/pubspec.yaml

@@ -1,35 +1,33 @@
 name: angel3_orm_postgres
-version: 8.1.1
+version: 8.1.0
 description: PostgreSQL support for Angel3 ORM. Includes functionality for querying and transactions.
 homepage: https://angel3-framework.web.app/
 repository: https://github.com/dart-backend/angel/tree/master/packages/orm/angel_orm_postgres
-publish_to: none
 environment:
   sdk: '>=3.0.0 <4.0.0'
 dependencies:
   angel3_orm: ^8.0.0
   logging: ^1.2.0
   pool: ^1.5.0
-  postgres: ^2.6.1
+  postgres: ^3.0.0
-  postgres_pool: ^2.1.6
 dev_dependencies:
   belatuk_pretty_logging: ^6.1.0
   angel3_orm_generator: ^8.0.0
   angel3_orm_test: ^8.0.0
   test: ^1.24.0
   lints: ^3.0.0
-# dependency_overrides:
+dependency_overrides:
 #   angel3_serialize:
 #      path: ../../serialize/angel_serialize
 #   angel3_serialize_generator:
 #      path: ../../serialize/angel_serialize_generator
 #   angel3_model:
 #     path: ../../model
-#   angel3_orm_test:
+   angel3_orm_test:
-#     path: ../angel_orm_test
+     path: ../angel_orm_test
 #   angel3_orm_generator:
 #     path: ../angel_orm_generator
-#   angel3_orm:
+   angel3_orm:
-#      path: ../angel_orm
+      path: ../angel_orm
-#   angel3_migration:
+   angel3_migration:
-#      path: ../angel_migration
+      path: ../angel_migration

packages/orm/angel_orm_postgres/test/common.dart

@@ -3,15 +3,12 @@ import 'dart:io';
 import 'package:angel3_orm/angel3_orm.dart';
 import 'package:angel3_orm_postgres/angel3_orm_postgres.dart';
 import 'package:logging/logging.dart';
-import 'package:postgres_pool/postgres_pool.dart';
+import 'package:postgres/postgres.dart';
 
 FutureOr<QueryExecutor> Function() pg(Iterable<String> schemas) {
   // Use single connection
   return () => connectToPostgres(schemas);
 
-  // Use connection pooling with 1 connection
-  //return () => connectToPostgresPool(schemas);
-
   // Use PostgreSqlExecutorPool (Not working)
   //return () => connectToPostgresPool1(schemas);
 }
@@ -19,69 +16,87 @@ FutureOr<QueryExecutor> Function() pg(Iterable<String> schemas) {
 Future<void> closePg(QueryExecutor executor) async {
   if (executor is PostgreSqlExecutor) {
     await executor.close();
-    //} else if (executor is PostgreSqlExecutorPool) {
-    //  await executor.close();
-  } else if (executor is PostgreSqlPoolExecutor) {
-    await executor.close();
   }
 }
 
 Future<PostgreSqlExecutor> connectToPostgres(Iterable<String> schemas) async {
-  var conn = PostgreSQLConnection(
+  var host = Platform.environment['POSTGRES_HOST'] ?? 'localhost';
-      'localhost', 5432, Platform.environment['POSTGRES_DB'] ?? 'orm_test',
+  var database = Platform.environment['POSTGRES_DB'] ?? 'orm_test';
-      username: Platform.environment['POSTGRES_USERNAME'] ?? 'test',
+  var username = Platform.environment['POSTGRES_USERNAME'] ?? 'test';
-      password: Platform.environment['POSTGRES_PASSWORD'] ?? 'test123');
+  var password = Platform.environment['POSTGRES_PASSWORD'] ?? 'test123';
-  await conn.open();
+
+  var conn = await Connection.open(
+      Endpoint(
+          host: host,
+          port: 5432,
+          database: database,
+          username: username,
+          password: password),
+      settings: ConnectionSettings(sslMode: SslMode.disable));
 
   // Run sql to create the tables
   for (var s in schemas) {
-    await conn.execute(await File('test/migrations/$s.sql').readAsString());
+    var rawQueryString = await File('test/migrations/$s.sql').readAsString();
+    print("Raw SQL Query: $rawQueryString");
+    //await conn.execute(queryString);
+
+    // Split the queries and execute them
+    var stringLen = rawQueryString.length;
+    var index = 0;
+    while (index < stringLen) {
+      index = rawQueryString.indexOf(";");
+      if (index < 0) {
+        break;
+      }
+      var query = rawQueryString.substring(0, index);
+      print("SQL Query: $query;");
+      await conn.execute("$query;");
+
+      index++;
+      if (index < stringLen) {
+        var tempString = rawQueryString.substring(index).trim();
+        rawQueryString = tempString;
+        stringLen = rawQueryString.length;
+        index = 0;
+      }
+    }
+    /*
+    var queryString = rawQueryString.replaceAll("\n", " ");
+    print("Raw Query: $queryString");
+    var queries = queryString.split(';');
+    for (var rawQuery in queries) {
+      var query = rawQuery.trim();
+      if (query.isNotEmpty) {
+        print("SQL Query: $query;");
+        await conn.execute("$query;");
+      }
+    }
+    */
   }
 
   return PostgreSqlExecutor(conn, logger: Logger.root);
 }
 
-Future<PostgreSqlExecutorPool> connectToPostgresPool1(
-    Iterable<String> schemas) async {
-  PostgreSQLConnection connectionFactory() {
-    return PostgreSQLConnection(
-        'localhost', 5432, Platform.environment['POSTGRES_DB'] ?? 'orm_test',
-        username: Platform.environment['POSTGRES_USERNAME'] ?? 'test',
-        password: Platform.environment['POSTGRES_PASSWORD'] ?? 'test123');
-  }
-
-  PostgreSQLConnection conn = connectionFactory();
-  await conn.open();
-
-  // Run sql to create the tables
-  for (var s in schemas) {
-    await conn.execute(await File('test/migrations/$s.sql').readAsString());
-  }
-
-  return PostgreSqlExecutorPool(5, connectionFactory, logger: Logger.root);
-}
-
 Future<PostgreSqlPoolExecutor> connectToPostgresPool(
     Iterable<String> schemas) async {
-  var dbPool = PgPool(
+  var dbPool = Pool.withEndpoints([
-    PgEndpoint(
+    Endpoint(
       host: 'localhost',
       port: 5432,
       database: Platform.environment['POSTGRES_DB'] ?? 'orm_test',
       username: Platform.environment['POSTGRES_USERNAME'] ?? 'test',
       password: Platform.environment['POSTGRES_PASSWORD'] ?? 'test123',
-    ),
+    )
-    settings: PgPoolSettings()
+  ],
-      ..maxConnectionAge = Duration(hours: 1)
+      settings: PoolSettings(
-      ..concurrency = 200,
+          maxConnectionAge: Duration(hours: 1), maxConnectionCount: 5));
-  );
 
   // Run sql to create the tables in a transaction
-  //await _pool.runTx((conn) async {
+  await dbPool.runTx((conn) async {
-  //  for (var s in schemas) {
+    for (var s in schemas) {
-  //    await conn.execute(await File('test/migrations/$s.sql').readAsString());
+      await conn.execute(await File('test/migrations/$s.sql').readAsString());
-  //  }
+    }
-  //});
+  });
 
   return PostgreSqlPoolExecutor(dbPool, logger: Logger.root);
 }

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

@@ -10,8 +10,11 @@ void customExprTests(FutureOr<QueryExecutor> Function() createExecutor,
 
   close ??= (_) => null;
 
+  var hasExecutor = false;
+
   setUp(() async {
     executor = await createExecutor();
+    hasExecutor = true;
 
     var now = DateTime.now();
     var nQuery = NumbersQuery();
@@ -24,7 +27,11 @@ void customExprTests(FutureOr<QueryExecutor> Function() createExecutor,
     });
   });
 
-  tearDown(() => close!(executor));
+  tearDown(() {
+    if (hasExecutor && close != null) {
+      close(executor);
+    }
+  });
 
   test('fetches correct result', () async {
     expect(numbersModel.two, 2);

packages/orm/angel_orm_test/pubspec.yaml

@@ -19,7 +19,7 @@ dev_dependencies:
   angel3_framework: ^8.0.0
   build_runner: ^2.4.0
   lints: ^3.0.0
-# dependency_overrides:
+dependency_overrides:
 #   angel3_container:
 #     path: ../../container/angel_container
 #   angel3_framework:
@@ -36,8 +36,8 @@ dev_dependencies:
 #     path: ../../serialize/angel_serialize
 #   angel3_serialize_generator:
 #      path: ../../serialize/angel_serialize_generator
-#   angel3_orm:
+   angel3_orm:
-#      path: ../angel_orm
+      path: ../angel_orm
 #   angel3_migration:
 #      path: ../angel_migration
 #   angel3_orm_generator: