akaunting/app/Models/Expense/Vendor.php

<?php

namespace App\Models\Expense;

use App\Models\Model;
use Sofa\Eloquence\Eloquence;

class Vendor extends Model
{
    use Eloquence;

    protected $table = 'vendors';

    /**
     * Attributes that should be mass-assignable.
     *
     * @var array
     */
    protected $fillable = ['company_id', 'name', 'email', 'tax_number', 'phone', 'address', 'website', 'currency_code', 'enabled'];

    /**
     * Sortable columns.
     *
     * @var array
     */
    public $sortable = ['name', 'email', 'phone', 'enabled'];

    /**
     * Searchable rules.
     *
     * @var array
     */
    protected $searchableColumns = [
        'name'    => 10,
        'email'   => 5,
        'phone'   => 2,
        'website' => 2,
        'address' => 1,
    ];

    public function bills()
    {
        return $this->hasMany('App\Models\Expense\Bill');
    }

    public function payments()
    {
        return $this->hasMany('App\Models\Expense\Payments');
    }

    public function currency()
    {
        return $this->belongsTo('App\Models\Setting\Currency', 'currency_code', 'code');
    }

    public function canDelete()
    {
        $error = false;

        if ($bills = $this->bills()->count()) {
            $error['bills'] = $bills;
        }

        if ($payments = $this->payments()->count()) {
            $error['payments'] = $payments;
        }

        if ($error) {
            return $error;
        }

        return true;
    }
}