dropUnique('email'); $table->dropForeign('mails_user_id_foreign'); $table->dropUnique('unique_primary_email'); $table->foreign('user_id')->references('id')->on('users'); }); Schema::table("users", function(Blueprint $table) { // e.g. $table->dropUnique('email'); $table->string('inviteCode')->nullable()->default(null)->comment("Invite code user used to register"); }); } /** * Reverse the migrations. * * @return void */ public function down() { return false; // Vorwärts immer, rückwerts nimmer } }