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:     /**
28:      * The field to check
29:      *
30:      * @var string
31:      */
32:     protected $_field;
33: 
34:     /**
35:      * Constructor.
36:      *
37:      * @param string $field The field to check the count on.
38:      */
39:     public function __construct($field)
40:     {
41:         $this->_field = $field;
42:     }
43: 
44:     /**
45:      * Performs the count check
46:      *
47:      * @param \Cake\Datasource\EntityInterface $entity The entity from where to extract the fields.
48:      * @param array $options Options passed to the check.
49:      * @return bool True if successful, else false.
50:      */
51:     public function __invoke(EntityInterface $entity, array $options)
52:     {
53:         $value = $entity->{$this->_field};
54:         if (!is_array($value) && !$value instanceof Countable) {
55:             return false;
56:         }
57: 
58:         return Validation::comparison(count($value), $options['operator'], $options['count']);
59:     }
60: }
61: