Edit file File name : SupportConversation.php Content :<?php namespace App\Models\Api ; use App\Models\SupportConversation as Model ; class SupportConversation extends Model{ public function getBriefAttribute(){ return [ 'message' => $this->message, 'sender' =>($this->sender_id) ?[ 'id' => $this->sender->id, 'full_name' => $this->sender->full_name, 'avatar' => url($this->sender->getAvatar()), ]:null , 'supporter' => ($this->supporter_id) ? [ 'id' => $this->supporter->id, 'full_name' => $this->supporter->full_name, 'avatar' => url($this->supporter->getAvatar()), ] : null, 'attach'=>($this->attach)?url($this->attach):null , 'created_at' => $this->created_at , ]; } }Save