Unique constraint in Migrations

Author: cincuranet

Provider/src/FirebirdSql.EntityFrameworkCore.Firebird.Tests/Migrations/MigrationsTests.cs

@@ -725,6 +725,60 @@ public void DropForeignKey()
 			Assert.AreEqual(NewLineEnd(@"ALTER TABLE ""People"" DROP CONSTRAINT ""FK_People_Principal"";"), batch[0].CommandText);
 		}
 
+		[Test]
+		public void AddUniqueConstraintOneColumn()
+		{
+			var operation = new AddUniqueConstraintOperation()
+			{
+				Table = "People",
+				Name = "UNQ_People_Foo",
+				Columns = new[] { "Foo" },
+			};
+			var batch = Generate(new[] { operation });
+			Assert.AreEqual(1, batch.Count());
+			Assert.AreEqual(NewLineEnd(@"ALTER TABLE ""People"" ADD CONSTRAINT ""UNQ_People_Foo"" UNIQUE (""Foo"");"), batch[0].CommandText);
+		}
+
+		[Test]
+		public void AddUniqueConstraintTwoColumns()
+		{
+			var operation = new AddUniqueConstraintOperation()
+			{
+				Table = "People",
+				Name = "UNQ_People_Foo_Bar",
+				Columns = new[] { "Foo", "Bar" },
+			};
+			var batch = Generate(new[] { operation });
+			Assert.AreEqual(1, batch.Count());
+			Assert.AreEqual(NewLineEnd(@"ALTER TABLE ""People"" ADD CONSTRAINT ""UNQ_People_Foo_Bar"" UNIQUE (""Foo"", ""Bar"");"), batch[0].CommandText);
+		}
+
+		[Test]
+		public void AddUniqueConstraintNoName()
+		{
+			var operation = new AddUniqueConstraintOperation()
+			{
+				Table = "People",
+				Columns = new[] { "Foo" },
+			};
+			var batch = Generate(new[] { operation });
+			Assert.AreEqual(1, batch.Count());
+			Assert.AreEqual(NewLineEnd(@"ALTER TABLE ""People"" ADD UNIQUE (""Foo"");"), batch[0].CommandText);
+		}
+
+		[Test]
+		public void DropUniqueConstraint()
+		{
+			var operation = new DropUniqueConstraintOperation()
+			{
+				Table = "People",
+				Name = "UNQ_People_Foo",
+			};
+			var batch = Generate(new[] { operation });
+			Assert.AreEqual(1, batch.Count());
+			Assert.AreEqual(NewLineEnd(@"ALTER TABLE ""People"" DROP CONSTRAINT ""UNQ_People_Foo"";"), batch[0].CommandText);
+		}
+
 		IReadOnlyList<MigrationCommand> Generate(IReadOnlyList<MigrationOperation> operations)
 		{
 			using (var db = GetDbContext<FbTestDbContext>())

Provider/src/FirebirdSql.EntityFrameworkCore.Firebird/Migrations/FbMigrationsSqlGenerator.cs

@@ -237,9 +237,14 @@ protected override void Generate(AddForeignKeyOperation operation, IModel model,
 			=> base.Generate(operation, model, builder);
 
 		protected override void Generate(DropForeignKeyOperation operation, IModel model, MigrationCommandListBuilder builder)
-		{
-			base.Generate(operation, model, builder);
-		}
+			=> base.Generate(operation, model, builder);
+
+
+		protected override void Generate(AddUniqueConstraintOperation operation, IModel model, MigrationCommandListBuilder builder)
+			=> base.Generate(operation, model, builder);
+
+		protected override void Generate(DropUniqueConstraintOperation operation, IModel model, MigrationCommandListBuilder builder)
+			=> base.Generate(operation, model, builder);
 
 
 		protected override void ColumnDefinition(string schema, string table, string name, Type clrType, string type, bool? unicode, int? maxLength, bool? fixedLength, bool rowVersion, bool nullable, object defaultValue, string defaultValueSql, string computedColumnSql, IAnnotatable annotatable, IModel model, MigrationCommandListBuilder builder)