1: <?php
 2: /**
 3:  * CakePHP(tm) : Rapid Development Framework (https://cakephp.org)
 4:  * Copyright (c) Cake Software Foundation, Inc. (https://cakefoundation.org)
 5:  *
 6:  * Licensed under The MIT License
 7:  * For full copyright and license information, please see the LICENSE.txt
 8:  * Redistributions of files must retain the above copyright notice.
 9:  *
10:  * @copyright     Copyright (c) Cake Software Foundation, Inc. (https://cakefoundation.org)
11:  * @link          https://cakephp.org CakePHP(tm) Project
12:  * @since         3.2.9
13:  * @license       https://opensource.org/licenses/mit-license.php MIT License
14:  */
15: namespace Cake\ORM\Rule;
16: 
17: use Cake\Datasource\EntityInterface;
18: use Cake\Validation\Validation;
19: use Countable;
20: 
21: /**
22:  * Validates the count of associated records.
23:  */
24: class ValidCount
25: {
26:     /**
27:      * The field to check
28:      *
29:      * @var string
30:      */
31:     protected $_field;
32: 
33:     /**
34:      * Constructor.
35:      *
36:      * @param string $field The field to check the count on.
37:      */
38:     public function __construct($field)
39:     {
40:         $this->_field = $field;
41:     }
42: 
43:     /**
44:      * Performs the count check
45:      *
46:      * @param \Cake\Datasource\EntityInterface $entity The entity from where to extract the fields.
47:      * @param array $options Options passed to the check.
48:      * @return bool True if successful, else false.
49:      */
50:     public function __invoke(EntityInterface $entity, array $options)
51:     {
52:         $value = $entity->{$this->_field};
53:         if (!is_array($value) && !$value instanceof Countable) {
54:             return false;
55:         }
56: 
57:         return Validation::comparison(count($value), $options['operator'], $options['count']);
58:     }
59: }
60: