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1 | <?php |
2 | /** |
3 | * Pop PHP Framework (http://www.popphp.org/) |
4 | * |
5 | * @link https://github.com/popphp/popphp-framework |
6 | * @author Nick Sagona, III <dev@noladev.com> |
7 | * @copyright Copyright (c) 2009-2025 NOLA Interactive, LLC. |
8 | * @license http://www.popphp.org/license New BSD License |
9 | */ |
10 | |
11 | /** |
12 | * @namespace |
13 | */ |
14 | namespace Pop\Validator; |
15 | |
16 | /** |
17 | * Has one that equals validator class |
18 | * |
19 | * @category Pop |
20 | * @package Pop\Validator |
21 | * @author Nick Sagona, III <dev@noladev.com> |
22 | * @copyright Copyright (c) 2009-2025 NOLA Interactive, LLC. |
23 | * @license http://www.popphp.org/license New BSD License |
24 | * @version 4.5.0 |
25 | */ |
26 | class HasOnlyOneThatEquals extends AbstractValidator |
27 | { |
28 | |
29 | /** |
30 | * Traits |
31 | */ |
32 | use TraverseTrait; |
33 | |
34 | /** |
35 | * Method to evaluate the validator |
36 | * |
37 | * @param mixed $input |
38 | * @throws Exception |
39 | * @return bool |
40 | */ |
41 | public function evaluate(mixed $input = null): bool |
42 | { |
43 | // Set the input, if passed |
44 | if ($input !== null) { |
45 | $this->input = $input; |
46 | } |
47 | |
48 | $result = false; |
49 | |
50 | if (!is_array($input)) { |
51 | throw new Exception('Error: The evaluated input must be an array.'); |
52 | } |
53 | if (!is_array($this->value)) { |
54 | throw new Exception("Error: The evaluated value must be an array of node name and value, e.g. ['node.name' => 3]."); |
55 | } |
56 | |
57 | $field = array_key_first($this->value); |
58 | $requiredValue = reset($this->value); |
59 | |
60 | // Set the default message |
61 | if ($this->message === null) { |
62 | $this->message = 'The value must contain only one item' . |
63 | (($this->value !== null) ? " of '" . $field . "'" : '') . ' with the required value.'; |
64 | } |
65 | |
66 | if (!str_contains($field, '.')) { |
67 | throw new Exception("Error: The evaluated value must been an array with a column name, e.g. 'users.username'."); |
68 | } |
69 | |
70 | $parent = substr($field, 0, strrpos($field, '.')); |
71 | $child = substr($field, (strrpos($field, '.') + 1)); |
72 | $value = []; |
73 | $count = 0; |
74 | self::traverseData($parent, $this->input, $value); |
75 | |
76 | foreach ($value as $val) { |
77 | if (is_array($val)) { |
78 | foreach ($val as $item) { |
79 | if (is_array($item) && isset($item[$child]) && ($item[$child] == $requiredValue)) { |
80 | $count++; |
81 | } |
82 | } |
83 | } |
84 | } |
85 | |
86 | return ($count == 1); |
87 | } |
88 | |
89 | } |