c3lf-system-3/app/Container.php

<?php

namespace App;

use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\SoftDeletes;
use Illuminate\Support\Facades\DB;

class Container extends Model
{
    use SoftDeletes;
    /**
     * The attributes that are mass assignable.
     *
     * @var array
     */
    protected $fillable = [
        'cid', 'name'
    ];


    protected $primaryKey = 'cid';

    /**
     * The attributes excluded from the model's JSON form.
     *
     * @var array
     */
    protected $hidden = ['created_at', 'deleted_at', 'updated_at'];

    static function all($columns=Array()){
        return Container::leftJoin('items','items.cid','=','containers.cid')
            ->select('containers.cid', 'name', DB::raw('count(items.iid) as itemCount'))
            ->groupBy('containers.cid', 'name')->get();
    }

    static function find($id){
        return Container::leftJoin('items','items.cid','=','containers.cid')
            ->select('containers.cid', 'name', DB::raw('count(items.iid) as itemCount'))
            ->groupBy('containers.cid', 'name')->where('items.cid', '=', $id)->first();
    }
}