ldc-legaulois/app/Models/BlockList.php

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\BelongsTo;

class BlockList extends Model
{
    /**
     * The attributes that are mass assignable.
     *
     * @var array<int, string>
     */
    protected $fillable = [
        'customer_id',
        'blocked_id',
    ];

    // * RELATIONSHIPS

    /**
     * Get the associated customer who has blocked another one.
     */
    public function customer(): BelongsTo
    {
        return $this->belongsTo(Customer::class);
    }

    /**
     * Obtain the associated client that has been blocked by another one.
     */
    public function blocked(): BelongsTo
    {
        return $this->belongsTo(Customer::class, 'blocked_id');
    }
}