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<?php |
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declare(strict_types=1); |
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/** |
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* Caridea |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); you may not |
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* use this file except in compliance with the License. You may obtain a copy of |
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* the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0 |
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the |
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* License for the specific language governing permissions and limitations under |
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* the License. |
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* |
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* @copyright 2015-2016 LibreWorks contributors |
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* @license http://opensource.org/licenses/Apache-2.0 Apache 2.0 License |
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*/ |
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namespace Caridea\Validate\Rule; |
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/** |
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* Rules for empty values |
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* |
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* @copyright 2015-2016 LibreWorks contributors |
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* @license http://opensource.org/licenses/Apache-2.0 Apache 2.0 License |
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*/ |
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class Blank implements \Caridea\Validate\Rule |
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{ |
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/** |
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* @var string The operator type |
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*/ |
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private $operator; |
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/** |
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* Creates a new EmptyRule. |
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* |
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* @param string $operator The operator type |
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*/ |
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protected function __construct(string $operator) |
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{ |
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$this->operator = $operator; |
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} |
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/** |
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* Validates the provided value. |
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* |
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* @param mixed $value A value to validate against the rule |
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* @param array|object $data The dataset which contains this field |
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* @return array An array of error codes or null if validation succeeded |
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*/ |
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public function apply($value, $data = []) |
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{ |
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switch ($this->operator) { |
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case "required": |
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return $value === null || $value === '' ? ['REQUIRED'] : null; |
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case "empty": |
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return $value === '' ? ['CANNOT_BE_EMPTY'] : null; |
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case "list": |
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1 |
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if (empty($value)) { |
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return ['CANNOT_BE_EMPTY']; |
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} elseif (!is_array($value) && !($value instanceof \Countable)) { |
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return ['FORMAT_ERROR']; |
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} |
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return count($value) === 0 ? ['CANNOT_BE_EMPTY'] : null; |
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} |
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} |
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/** |
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* Gets a rule that requires values to be non-null and not empty string. |
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* |
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* @return \Caridea\Validate\Rule\Blank the created rule |
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*/ |
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1 |
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public static function required(): Blank |
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{ |
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return new Blank('required'); |
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} |
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/** |
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* Gets a rule that requires strings to be non-empty. |
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* |
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* @return \Caridea\Validate\Rule\Blank |
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*/ |
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1 |
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public static function notEmpty(): Blank |
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{ |
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return new Blank('empty'); |
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} |
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/** |
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* Gets a rule that requires an array or `Countable` to be non-empty. |
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* |
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* @return \Caridea\Validate\Rule\Blank |
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*/ |
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public static function notEmptyList(): Blank |
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{ |
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return new Blank('list'); |
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} |
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} |
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libreworks /
caridea-validate
