increments('id'); $table->string('title'); $table->timestamps(); }); Schema::create('comments', function (Blueprint $table) { $table->increments('id'); $table->string('name'); $table->integer('commentable_id'); $table->string('commentable_type'); $table->timestamps(); }); Carbon::setTestNow(null); } public function testUpdateModelWithDefaultWithCount() { $post = Post::create(['title' => Str::random()]); $post->update(['title' => 'new name']); $this->assertSame('new name', $post->title); } public function test_self_referencing_existence_query() { $post = Post::create(['title' => 'foo']); $comment = tap((new Comment(['name' => 'foo']))->commentable()->associate($post))->save(); (new Comment(['name' => 'bar']))->commentable()->associate($comment)->save(); $comments = Comment::has('replies')->get(); $this->assertEquals([1], $comments->pluck('id')->all()); } } class Post extends Model { public $table = 'posts'; public $timestamps = true; protected $guarded = []; protected $withCount = ['comments']; public function comments() { return $this->morphMany(Comment::class, 'commentable'); } } class Comment extends Model { public $table = 'comments'; public $timestamps = true; protected $guarded = []; public function commentable() { return $this->morphTo(); } public function replies() { return $this->morphMany(self::class, 'commentable'); } }