Menus.php

<?php namespace Admin\Controllers;

use Admin\Classes\AdminController;
use AdminMenu;
use ApplicationException;

class Menus extends AdminController
{
    public $implement = [
        'Admin\Actions\ListController',
        'Admin\Actions\FormController',
    ];

    public $listConfig = [
        'list' => [
            'model' => 'Admin\Models\Menus_model',
            'title' => 'lang:admin::lang.menus.text_title',
            'emptyMessage' => 'lang:admin::lang.menus.text_empty',
            'defaultSort' => ['menu_id', 'DESC'],
            'configFile' => 'menus_model',
        ],
    ];

    public $formConfig = [
        'name' => 'lang:admin::lang.menus.text_form_name',
        'model' => 'Admin\Models\Menus_model',
        'create' => [
            'title' => 'lang:admin::lang.form.create_title',
            'redirect' => 'menus/edit/{menu_id}',
            'redirectClose' => 'menus',
        ],
        'edit' => [
            'title' => 'lang:admin::lang.form.edit_title',
            'redirect' => 'menus/edit/{menu_id}',
            'redirectClose' => 'menus',
        ],
        'preview' => [
            'title' => 'lang:admin::lang.form.preview_title',
            'redirect' => 'menus',
        ],
        'delete' => [
            'redirect' => 'menus',
        ],
        'configFile' => 'menus_model',
    ];

    protected $requiredPermissions = 'Admin.Menus';

    public function __construct()
    {
        parent::__construct();

        AdminMenu::setContext('menus', 'kitchen');
    }

    public function edit_onChooseMenuOption($context, $recordId)
    {
        $menuOptionId = post('Menu._options');
        if (!$menuOptionId)
            throw new ApplicationException('Please select a menu option to attach');

        $model = $this->asExtension('FormController')->formFindModelObject($recordId);

        $model->menu_options()->create([
            'option_id' => $menuOptionId,
        ]);

        $model->reload();
        $this->asExtension('FormController')->initForm($model, $context);

        flash()->success(sprintf(lang('admin::lang.alert_success'), 'Menu item option attached'))->now();

        $formField = $this->widgets['form']->getField('menu_options');

        return [
            '#notification' => $this->makePartial('flash'),
            '#'.$formField->getId('group') => $this->widgets['form']->renderField($formField, [
                'useContainer' => FALSE,
            ]),
        ];
    }

    public function formValidate($model, $form)
    {
        $rules = [
            ['menu_name', 'lang:admin::lang.menus.label_name', 'required|min:2|max:255'],
            ['menu_description', 'lang:admin::lang.menus.label_description', 'min:2|max:1028'],
            ['menu_price', 'lang:admin::lang.menus.label_price', 'required|numeric'],
            ['categories.*', 'lang:admin::lang.menus.label_category', 'required|integer'],
            ['stock_qty', 'lang:admin::lang.menus.label_stock_qty', 'integer'],
            ['minimum_qty', 'lang:admin::lang.menus.label_minimum_qty', 'required|integer'],
            ['subtract_stock', 'lang:admin::lang.menus.label_subtract_stock', 'required|integer'],
            ['menu_status', 'lang:admin::lang.label_status', 'required|integer'],
            ['mealtime_id', 'lang:admin::lang.menus.label_mealtime', 'integer'],
            ['menu_priority', 'lang:admin::lang.menus.label_menu_priority', 'integer'],
            ['special.special_id', 'lang:admin::lang.menus.label_special_status', 'integer'],
            ['special.special_status', 'lang:admin::lang.menus.label_special_status', 'required|integer'],
        ];

        $rules[] = ['special.start_date', 'lang:admin::lang.menus.label_start_date', 'required_if:special.special_status,1|valid_date'];
        $rules[] = ['special.end_date', 'lang:admin::lang.menus.label_end_date', 'required_if:special.special_status,1|valid_date'];
        $rules[] = ['special.special_price', 'lang:admin::lang.menus.label_special_price', 'required_if:special.special_status,1|numeric'];

        return $this->validatePasses(post($form->arrayName), $rules);
    }
}