Polymorphic Likes

                            
<?php
 
namespace App\Models\Traits;
 
use App\Models\Like;
 
trait HasLikes
{
    public function likes()
    {
        return $this->morphMany(Like::class, 'likeable');
    }
}                        

                            
<?php
 
namespace App\Models;
 
use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;
 
class Like extends Model
{
    use HasFactory;
 
    protected $fillable = ["user_id"];
 
    /**
     * Get the parent likeable model
     */
    public function likeable()
    {
        return $this->morphTo();
    }
 
    public function user()
    {
        return $this->belongsTo(User::class);
    }
}                        

                            
<?php
 
namespace App\Models;
 
use App\Models\Traits\HasLikes;
use Illuminate\Database\Eloquent\Model;
 
class Post extends Model
{
    use HasLikes;
 
    protected $fillable = [
        "name", "text"
    ];
}                        

                            
<?php
 
use Illuminate\Database\Migrations\Migration;
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Support\Facades\Schema;
 
class CreateLikesTable extends Migration
{
    /**
     * Run the migrations.
     *
     * @return void
     */
    public function up()
    {
        Schema::create('likes', function (Blueprint $table) {
            $table->id();
 
            $table->integer("likeable_id");
            $table->string("likeable_type");
 
            $table->foreignId("user_id")->constrained()->cascadeOnDelete()->cascadeOnUpdate();
 
            $table->timestamps();
        });
    }
 
    /**
     * Reverse the migrations.
     *
     * @return void
     */
    public function down()
    {
        Schema::dropIfExists('likes');
    }
}