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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 count less than or equal 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 HasCountLessThanEqual 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($this->value) || !is_numeric(reset($this->value))) { |
54 | throw new Exception("Error: The evaluated value must be an array of node name and count value, e.g. ['node' => 3]."); |
55 | } |
56 | |
57 | $field = array_key_first($this->value); |
58 | $count = reset($this->value); |
59 | |
60 | // Set the default message |
61 | if (!$this->hasMessage()) { |
62 | $this->generateDefaultMessage(); |
63 | } |
64 | |
65 | if (!str_contains($field, '.')) { |
66 | return (array_key_exists($field, $this->input) && |
67 | is_array($this->input[$field]) && count($this->input[$field]) <= $count); |
68 | } else { |
69 | $value = []; |
70 | self::traverseData($field, $this->input, $value); |
71 | |
72 | return (is_array($value) && (isset($value[0])) && (count($value[0]) <= $count)); |
73 | } |
74 | } |
75 | |
76 | /** |
77 | * Generate default message |
78 | |
79 | * @param mixed $name |
80 | * @param mixed $value |
81 | * @return string |
82 | */ |
83 | public function generateDefaultMessage(mixed $name = null, mixed $value = null): string |
84 | { |
85 | $field = null; |
86 | $count = null; |
87 | |
88 | if (($value !== null) && is_array($value)) { |
89 | $field = array_key_first($value); |
90 | $count = reset($value); |
91 | } else if ($this->value !== null) { |
92 | $field = array_key_first($this->value); |
93 | $count = reset($this->value); |
94 | } |
95 | |
96 | $this->message = "The " . (($name !== null) ? "'" . $name . "'" : "array") . |
97 | " must have a field '" . $field . "' with at most " . $count . " item(s)."; |
98 | |
99 | return $this->message; |
100 | } |
101 | |
102 | } |