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<?php |
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/* |
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* This file is part of the Valdi package. |
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* |
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* (c) Philip Lehmann-Böhm <[email protected]> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace Valdi; |
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use Valdi\Validator\ValidatorInterface; |
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/** |
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* The Validator is used to chain Validators together and validate a set of data |
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* with it. |
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*/ |
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class Validator { |
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/** |
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* Holds the available validators. |
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*/ |
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protected $availableValidators; |
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/** |
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* Creates instances of the available validators. |
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* |
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* @param array $validators |
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* the validators to load, key = name, value = classname within the |
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* namespace "\Valdi\Validator" |
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*/ |
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protected function createValidators(array $validators) { |
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$this->availableValidators = array(); |
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foreach ($validators as $name => $type) { |
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$class = '\\Valdi\\Validator\\' . $type; |
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$this->availableValidators[$name] = new $class(); |
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} |
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} |
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/** |
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* Validates a single rule. |
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* |
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* @param string $validator |
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* the validator to use |
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* @param string[] $parameters |
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* the validation parameters, depending on the validator |
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* @param string $value |
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* the value to validate |
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* |
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* @return boolean |
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* true if the value is valid |
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*/ |
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protected function isValidRule($validator, $parameters, $value) { |
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if (!array_key_exists($validator, $this->availableValidators)) { |
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throw new ValidatorException('"' . $validator . '" not found as available validator.'); |
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} |
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return $this->availableValidators[$validator]->isValid($value, $parameters); |
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} |
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/** |
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* Constructor. |
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*/ |
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public function __construct() { |
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$validators = array( |
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'afterDateTime' => 'AfterDateTime', 'alphabetical' => 'Alphabetical', |
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'alphaNumerical' => 'AlphaNumerical', 'beforeDateTime' => 'BeforeDateTime', |
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'between' => 'Between', 'boolean' => 'Boolean', |
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'contains' => 'Contains', 'dateTime' => 'DateTime', |
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'dateTimeBetween' => 'DateTimeBetween', 'email' => 'Email', |
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'floating' => 'Floating', 'inSet' => 'InSet', |
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'integer' => 'Integer', 'inTheFuture' => 'InTheFuture', |
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'inThePast' => 'InThePast', 'ip' => 'IP', |
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'ipv4' => 'IPv4', 'ipv6' => 'IPv6', |
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'lengthBetween' => 'LengthBetween', 'max' => 'Max', |
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'maxLength' => 'MaxLength', 'min' => 'Min', |
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'minLength' => 'MinLength', 'olderThan' => 'OlderThan', |
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'or' => 'OrCombine', 'regexp' => 'Regexp', |
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'required' => 'Required', 'slug' => 'Slug', |
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'url' => 'Url', 'value' => 'Value', |
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'youngerThan' => 'YoungerThan' |
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); |
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$this->createValidators($validators); |
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} |
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/** |
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* Adds additional validator. It can override existing validators as well. |
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* |
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* @param string $name |
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* the name of the new validator. |
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* @param ValidatorInterface $validator |
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* the validator to add |
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*/ |
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public function addValidator($name, ValidatorInterface $validator) { |
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$this->availableValidators[$name] = $validator; |
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} |
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/** |
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* Validates a value via the given rules. |
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* |
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* @param array $rules |
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* the validation rules |
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* @param string $value |
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* the value to validate |
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* |
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* @return string[] |
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* the fields where the validation failed |
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*/ |
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public function isValidValue($rules, $value) { |
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$result = array(); |
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foreach ($rules as $rule) { |
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$parameters = $rule; |
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$name = array_shift($parameters); |
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$valid = $this->isValidRule($name, $parameters, $value); |
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if (!$valid) { |
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$result[] = $name; |
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} |
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} |
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return $result; |
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} |
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/** |
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* Performs the actual validation. |
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* |
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* @param array $rules |
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* the validation rules: an array with a field name as key and an array |
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* of rules to use for this field; each rule is an array with the validator |
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* name as first element and parameters as following elements; example: |
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* array('a' => array(array('required')), 'b' => array(array('min', 1))) |
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* @param array $data |
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* the data to validate as a map |
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* |
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* @return array<string,boolean|array> |
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* the validation result having the keys "valid" (true or false) and |
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* the key "errors" containing all failed fields as keys with arrays of the |
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* failed validator names; example where the field "b" from the above sample |
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* failed due to the min validator: |
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* array('valid' => false, errors => array('b' => array('min'))) |
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*/ |
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public function isValid(array $rules, array $data) { |
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$errors = array(); |
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foreach ($rules as $field => $fieldRules) { |
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$value = isset($data[$field]) ? $data[$field] : null; |
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$fieldErrors = $this->isValidValue($fieldRules, $value); |
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if (!empty($fieldErrors)) { |
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$errors[$field] = $fieldErrors; |
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} |
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} |
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return array( |
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'valid' => count($errors) === 0, |
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'errors' => $errors |
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); |
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} |
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} |
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philiplb /
Valdi
