'string', 'admin_id' => 'string', 'main_dept_id'=> 'string', 'main_post_id' => 'string', ]; public function admin(): \Illuminate\Database\Eloquent\Relations\BelongsTo { return $this->belongsTo(Admin::class, 'admin_id', 'id'); } public function mainDept(): \Illuminate\Database\Eloquent\Relations\BelongsTo { return $this->belongsTo(Dept::class, 'main_dept_id', 'id'); } public function mainPost(): \Illuminate\Database\Eloquent\Relations\BelongsTo { return $this->belongsTo(Post::class, 'main_post_id', 'id'); } }