increments('id'); $table->integer('user_id')->unsigned(); $table->string('ip_address', 46); $table->text('content'); $table->timestamps(); $table->timestamp('deleted_at')->nullable()->index(); $table->integer('profile_id')->unsigned()->nullable()->index(); $table->integer('track_id')->unsigned()->nullable()->index(); $table->integer('album_id')->unsigned()->nullable()->index(); $table->integer('playlist_id')->unsigned()->nullable()->index(); $table->foreign('profile_id')->references('id')->on('users'); $table->foreign('user_id')->references('id')->on('users'); $table->foreign('track_id')->references('id')->on('tracks'); $table->foreign('album_id')->references('id')->on('albums'); $table->foreign('playlist_id')->references('id')->on('playlists'); }); } public function down() { Schema::table('comments', function ($table) { $table->dropForeign('comments_user_id_foreign'); $table->dropForeign('comments_track_id_foreign'); $table->dropForeign('comments_album_id_foreign'); $table->dropForeign('comments_playlist_id_foreign'); }); Schema::drop('comments'); } }