diff --git a/angel_orm_generator/pubspec.yaml b/angel_orm_generator/pubspec.yaml
index edc511b2..f0a72467 100644
--- a/angel_orm_generator/pubspec.yaml
+++ b/angel_orm_generator/pubspec.yaml
@@ -24,4 +24,5 @@ dev_dependencies:
   #angel_migration: ^1.0.0-alpha
   #angel_test: ^1.0.0
   build_runner: ^0.10.0
+  postgres: ^1.0.0
   test: ^1.0.0
diff --git a/angel_orm_generator/test/models/author.orm.g.dart b/angel_orm_generator/test/models/author.orm.g.dart
index c4dc33e4..ce84f481 100644
--- a/angel_orm_generator/test/models/author.orm.g.dart
+++ b/angel_orm_generator/test/models/author.orm.g.dart
@@ -4,11 +4,15 @@
 // OrmGenerator
 // **************************************************************************
 
-import 'dart:async';
 import 'author.dart';
+import 'dart:async';
+import 'package:postgres/postgres.dart';
 part 'author.postgresql.orm.g.dart';
 
 abstract class AuthorOrm {
+  factory AuthorOrm.postgreSql(PostgreSQLConnection connection) =
+      _PostgreSqlAuthorOrmImpl;
+
   Future<List<Author>> getAll();
   Future<Author> getById(id);
   Future<Author> update(Author model);
diff --git a/angel_orm_generator/test/models/author.postgresql.orm.g.dart b/angel_orm_generator/test/models/author.postgresql.orm.g.dart
index f773ee93..2e2cf53d 100644
--- a/angel_orm_generator/test/models/author.postgresql.orm.g.dart
+++ b/angel_orm_generator/test/models/author.postgresql.orm.g.dart
@@ -5,3 +5,9 @@
 // **************************************************************************
 
 part of 'author.orm.g.dart';
+
+class _PostgreSqlAuthorOrmImpl implements AuthorOrm {
+  _PostgreSqlAuthorOrmImpl(this.connection);
+
+  final PostgreSQLConnection connection;
+}
diff --git a/angel_orm_generator/test/models/car.orm.g.dart b/angel_orm_generator/test/models/car.orm.g.dart
index 8d9bdd5c..04d65f2a 100644
--- a/angel_orm_generator/test/models/car.orm.g.dart
+++ b/angel_orm_generator/test/models/car.orm.g.dart
@@ -4,11 +4,15 @@
 // OrmGenerator
 // **************************************************************************
 
-import 'dart:async';
 import 'car.dart';
+import 'dart:async';
+import 'package:postgres/postgres.dart';
 part 'car.postgresql.orm.g.dart';
 
 abstract class CarOrm {
+  factory CarOrm.postgreSql(PostgreSQLConnection connection) =
+      _PostgreSqlCarOrmImpl;
+
   Future<List<Car>> getAll();
   Future<Car> getById(id);
   Future<Car> update(Car model);
diff --git a/angel_orm_generator/test/models/car.postgresql.orm.g.dart b/angel_orm_generator/test/models/car.postgresql.orm.g.dart
index 84553888..dbfcba26 100644
--- a/angel_orm_generator/test/models/car.postgresql.orm.g.dart
+++ b/angel_orm_generator/test/models/car.postgresql.orm.g.dart
@@ -5,3 +5,9 @@
 // **************************************************************************
 
 part of 'car.orm.g.dart';
+
+class _PostgreSqlCarOrmImpl implements CarOrm {
+  _PostgreSqlCarOrmImpl(this.connection);
+
+  final PostgreSQLConnection connection;
+}
diff --git a/angel_orm_generator/test/models/customer.orm.g.dart b/angel_orm_generator/test/models/customer.orm.g.dart
index 50a06c61..920ac895 100644
--- a/angel_orm_generator/test/models/customer.orm.g.dart
+++ b/angel_orm_generator/test/models/customer.orm.g.dart
@@ -4,11 +4,15 @@
 // OrmGenerator
 // **************************************************************************
 
-import 'dart:async';
 import 'customer.dart';
+import 'dart:async';
+import 'package:postgres/postgres.dart';
 part 'customer.postgresql.orm.g.dart';
 
 abstract class CustomerOrm {
+  factory CustomerOrm.postgreSql(PostgreSQLConnection connection) =
+      _PostgreSqlCustomerOrmImpl;
+
   Future<List<Customer>> getAll();
   Future<Customer> getById(id);
   Future<Customer> update(Customer model);
diff --git a/angel_orm_generator/test/models/customer.postgresql.orm.g.dart b/angel_orm_generator/test/models/customer.postgresql.orm.g.dart
index dca5d807..eebc7d63 100644
--- a/angel_orm_generator/test/models/customer.postgresql.orm.g.dart
+++ b/angel_orm_generator/test/models/customer.postgresql.orm.g.dart
@@ -5,3 +5,9 @@
 // **************************************************************************
 
 part of 'customer.orm.g.dart';
+
+class _PostgreSqlCustomerOrmImpl implements CustomerOrm {
+  _PostgreSqlCustomerOrmImpl(this.connection);
+
+  final PostgreSQLConnection connection;
+}
diff --git a/angel_orm_generator/test/models/foot.orm.g.dart b/angel_orm_generator/test/models/foot.orm.g.dart
index 4310abda..5db6a72f 100644
--- a/angel_orm_generator/test/models/foot.orm.g.dart
+++ b/angel_orm_generator/test/models/foot.orm.g.dart
@@ -6,9 +6,13 @@
 
 import 'dart:async';
 import 'foot.dart';
+import 'package:postgres/postgres.dart';
 part 'foot.postgresql.orm.g.dart';
 
 abstract class FootOrm {
+  factory FootOrm.postgreSql(PostgreSQLConnection connection) =
+      _PostgreSqlFootOrmImpl;
+
   Future<List<Foot>> getAll();
   Future<Foot> getById(id);
   Future<Foot> update(Foot model);
diff --git a/angel_orm_generator/test/models/foot.postgresql.orm.g.dart b/angel_orm_generator/test/models/foot.postgresql.orm.g.dart
index 7d098823..34518882 100644
--- a/angel_orm_generator/test/models/foot.postgresql.orm.g.dart
+++ b/angel_orm_generator/test/models/foot.postgresql.orm.g.dart
@@ -5,3 +5,9 @@
 // **************************************************************************
 
 part of 'foot.orm.g.dart';
+
+class _PostgreSqlFootOrmImpl implements FootOrm {
+  _PostgreSqlFootOrmImpl(this.connection);
+
+  final PostgreSQLConnection connection;
+}
diff --git a/angel_orm_generator/test/models/fruit.orm.g.dart b/angel_orm_generator/test/models/fruit.orm.g.dart
index 482ab1fc..a94c0f08 100644
--- a/angel_orm_generator/test/models/fruit.orm.g.dart
+++ b/angel_orm_generator/test/models/fruit.orm.g.dart
@@ -6,9 +6,13 @@
 
 import 'dart:async';
 import 'fruit.dart';
+import 'package:postgres/postgres.dart';
 part 'fruit.postgresql.orm.g.dart';
 
 abstract class FruitOrm {
+  factory FruitOrm.postgreSql(PostgreSQLConnection connection) =
+      _PostgreSqlFruitOrmImpl;
+
   Future<List<Fruit>> getAll();
   Future<Fruit> getById(id);
   Future<Fruit> update(Fruit model);
diff --git a/angel_orm_generator/test/models/fruit.postgresql.orm.g.dart b/angel_orm_generator/test/models/fruit.postgresql.orm.g.dart
index 90a97017..3448a9f7 100644
--- a/angel_orm_generator/test/models/fruit.postgresql.orm.g.dart
+++ b/angel_orm_generator/test/models/fruit.postgresql.orm.g.dart
@@ -5,3 +5,9 @@
 // **************************************************************************
 
 part of 'fruit.orm.g.dart';
+
+class _PostgreSqlFruitOrmImpl implements FruitOrm {
+  _PostgreSqlFruitOrmImpl(this.connection);
+
+  final PostgreSQLConnection connection;
+}
diff --git a/angel_orm_generator/test/models/order.orm.g.dart b/angel_orm_generator/test/models/order.orm.g.dart
index 14fec042..655bd757 100644
--- a/angel_orm_generator/test/models/order.orm.g.dart
+++ b/angel_orm_generator/test/models/order.orm.g.dart
@@ -6,9 +6,13 @@
 
 import 'dart:async';
 import 'order.dart';
+import 'package:postgres/postgres.dart';
 part 'order.postgresql.orm.g.dart';
 
 abstract class OrderOrm {
+  factory OrderOrm.postgreSql(PostgreSQLConnection connection) =
+      _PostgreSqlOrderOrmImpl;
+
   Future<List<Order>> getAll();
   Future<Order> getById(id);
   Future<Order> update(Order model);
diff --git a/angel_orm_generator/test/models/order.postgresql.orm.g.dart b/angel_orm_generator/test/models/order.postgresql.orm.g.dart
index a0e77733..d1e03bdd 100644
--- a/angel_orm_generator/test/models/order.postgresql.orm.g.dart
+++ b/angel_orm_generator/test/models/order.postgresql.orm.g.dart
@@ -5,3 +5,9 @@
 // **************************************************************************
 
 part of 'order.orm.g.dart';
+
+class _PostgreSqlOrderOrmImpl implements OrderOrm {
+  _PostgreSqlOrderOrmImpl(this.connection);
+
+  final PostgreSQLConnection connection;
+}
diff --git a/angel_orm_generator/test/models/role.orm.g.dart b/angel_orm_generator/test/models/role.orm.g.dart
index 60ed45e4..0e5ddfd3 100644
--- a/angel_orm_generator/test/models/role.orm.g.dart
+++ b/angel_orm_generator/test/models/role.orm.g.dart
@@ -5,10 +5,14 @@
 // **************************************************************************
 
 import 'dart:async';
+import 'package:postgres/postgres.dart';
 import 'role.dart';
 part 'role.postgresql.orm.g.dart';
 
 abstract class RoleOrm {
+  factory RoleOrm.postgreSql(PostgreSQLConnection connection) =
+      _PostgreSqlRoleOrmImpl;
+
   Future<List<Role>> getAll();
   Future<Role> getById(id);
   Future<Role> update(Role model);
diff --git a/angel_orm_generator/test/models/role.postgresql.orm.g.dart b/angel_orm_generator/test/models/role.postgresql.orm.g.dart
index 5af86685..f8a8bcef 100644
--- a/angel_orm_generator/test/models/role.postgresql.orm.g.dart
+++ b/angel_orm_generator/test/models/role.postgresql.orm.g.dart
@@ -5,3 +5,9 @@
 // **************************************************************************
 
 part of 'role.orm.g.dart';
+
+class _PostgreSqlRoleOrmImpl implements RoleOrm {
+  _PostgreSqlRoleOrmImpl(this.connection);
+
+  final PostgreSQLConnection connection;
+}