increments('id'); $table->boolean('post_visible'); }); Schema::create('videos', function (Blueprint $table) { $table->increments('id'); $table->boolean('video_visible'); }); Schema::create('comments', function (Blueprint $table) { $table->increments('id'); $table->string('commentable_type'); $table->integer('commentable_id'); }); $post1 = Post::create(['post_visible' => true]); (new Comment)->commentable()->associate($post1)->save(); $post2 = Post::create(['post_visible' => false]); (new Comment)->commentable()->associate($post2)->save(); $video1 = Video::create(['video_visible' => true]); (new Comment)->commentable()->associate($video1)->save(); $video2 = Video::create(['video_visible' => false]); (new Comment)->commentable()->associate($video2)->save(); } public function testMorphConstraints() { $comments = Comment::query() ->with(['commentable' => function (MorphTo $morphTo) { $morphTo->constrain([ Post::class => function ($query) { $query->where('post_visible', true); }, Video::class => function ($query) { $query->where('video_visible', true); }, ]); }]) ->get(); $this->assertTrue($comments[0]->commentable->post_visible); $this->assertNull($comments[1]->commentable); $this->assertTrue($comments[2]->commentable->video_visible); $this->assertNull($comments[3]->commentable); } } class Comment extends Model { public $timestamps = false; public function commentable() { return $this->morphTo(); } } class Post extends Model { public $timestamps = false; protected $fillable = ['post_visible']; protected $casts = ['post_visible' => 'boolean']; } class Video extends Model { public $timestamps = false; protected $fillable = ['video_visible']; protected $casts = ['video_visible' => 'boolean']; }