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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->hasMessage()) { |
| 62 | $this->generateDefaultMessage(); |
| 63 | } |
| 64 | |
| 65 | if (!str_contains($field, '.')) { |
| 66 | throw new Exception("Error: The evaluated value must been an array with a column name, e.g. 'users.username'."); |
| 67 | } |
| 68 | |
| 69 | $parent = substr($field, 0, strrpos($field, '.')); |
| 70 | $child = substr($field, (strrpos($field, '.') + 1)); |
| 71 | $value = []; |
| 72 | $count = 0; |
| 73 | self::traverseData($parent, $this->input, $value); |
| 74 | |
| 75 | foreach ($value as $val) { |
| 76 | if (is_array($val)) { |
| 77 | foreach ($val as $item) { |
| 78 | if (is_array($item) && isset($item[$child]) && ($item[$child] == $requiredValue)) { |
| 79 | $count++; |
| 80 | } |
| 81 | } |
| 82 | } |
| 83 | } |
| 84 | |
| 85 | return ($count == 1); |
| 86 | } |
| 87 | |
| 88 | /** |
| 89 | * Generate default message |
| 90 | |
| 91 | * @param mixed $name |
| 92 | * @param mixed $value |
| 93 | * @return string |
| 94 | */ |
| 95 | public function generateDefaultMessage(mixed $name = null, mixed $value = null): string |
| 96 | { |
| 97 | $field = null; |
| 98 | |
| 99 | if (($value !== null) && is_array($value)) { |
| 100 | $field = array_key_first($value); |
| 101 | } else if ($this->value !== null) { |
| 102 | $field = array_key_first($this->value); |
| 103 | } |
| 104 | |
| 105 | $this->message = "The " . (($name !== null) ? "'" . $name . "'" : "value") . |
| 106 | " must contain one item" . (($this->value !== null) ? " of '" . $field . "'" : "") . |
| 107 | " with the required value."; |
| 108 | |
| 109 | return $this->message; |
| 110 | } |
| 111 | |
| 112 | } |