foreign('group_id')->references('id')->on('groups')->onDelete('CASCADE'); $table->foreign('user_id')->references('id')->on('users')->onDelete('CASCADE'); }); } /** * Reverse the migrations. * * @return void */ public function down() { Schema::table('user_groups', function (Blueprint $table) { $table->dropForeign('user_groups_group_id_foreign'); $table->dropForeign('user_groups_user_id_foreign'); }); } }