add foreign keys and constraints (#17697)

* foreign keys and constraints

* refactoring

* fix issues

src/sql/workbench/api/common/sqlExtHost.api.impl.ts

@@ -572,6 +572,9 @@ export function createAdsApiFactory(accessor: ServicesAccessor): IAdsExtensionAp
 			const designers: typeof azdata.designers = {
 				TableProperty: sqlExtHostTypes.designers.TableProperty,
 				TableColumnProperty: sqlExtHostTypes.designers.TableColumnProperty,
+				TableForeignKeyProperty: sqlExtHostTypes.designers.TableForeignKeyProperty,
+				ForeignKeyColumnMappingProperty: sqlExtHostTypes.designers.ForeignKeyColumnMappingProperty,
+				TableCheckConstraintProperty: sqlExtHostTypes.designers.TableCheckConstraintProperty,
 				DesignerEditType: sqlExtHostTypes.designers.DesignerEditType,
 				openTableDesigner(providerId, tableInfo: azdata.designers.TableInfo): Promise<void> {
 					return extHostDataProvider.$openTableDesigner(providerId, tableInfo);

src/sql/workbench/api/common/sqlExtHostTypes.ts

@@ -913,7 +913,9 @@ export namespace designers {
 		Name = 'name',
 		Description = 'description',
 		Columns = 'columns',
-		Script = 'script'
+		Script = 'script',
+		ForeignKeys = 'foreignKeys',
+		CheckConstraints = 'checkConstraints',
 	}
 
 	export enum TableColumnProperty {
@@ -927,6 +929,24 @@ export namespace designers {
 		Scale = 'scale'
 	}
 
+	export enum TableForeignKeyProperty {
+		Name = 'name',
+		PrimaryKeyTable = 'primaryKeyTable',
+		OnDeleteAction = 'onDeleteAction',
+		OnUpdateAction = 'onUpdateAction',
+		Columns = 'columns'
+	}
+
+	export enum ForeignKeyColumnMappingProperty {
+		PrimaryKeyColumn = 'primaryKeyColumn',
+		ForeignKeyColumn = 'foreignKeyColumn'
+	}
+
+	export enum TableCheckConstraintProperty {
+		Name = 'name',
+		Expression = 'expression'
+	}
+
 	export enum DesignerEditType {
 		Add = 0,
 		Remove = 1,