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<?php |
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namespace FFCMS\Traits; |
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use FFMVC\Helpers as Helpers; |
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/** |
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* Handle validation (via GUMP or GUMP-inheriting validation class) |
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* |
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* The constructor should optional initialise default validation and filtering rules. |
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* The class can then call the default method validate() which return true/false if validation passed |
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* or validate(false) which returns an array of the validation errors which can be made |
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* more presentable passed into validationErrors() |
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* |
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* @see \FFCMS\Helpers\Validator |
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* @url https://github.com/Wixel/GUMP |
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*/ |
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trait Validation |
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{ |
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/** |
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* Validation rules (GUMP rules array) |
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* |
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* @var array |
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*/ |
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protected $validationRules = []; |
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/** |
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* Initial validation rules (automatically copied from $validationRules when instantiated) |
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* |
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* @var array |
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*/ |
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protected $validationRulesDefault = []; |
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/** |
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* Filter rules (GUMP filters array) |
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* |
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* @var array |
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*/ |
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protected $filterRules = []; |
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/** |
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* Initial filter rules (automatically copied from $filterRules when instantiated) |
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* |
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* @var array |
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*/ |
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protected $filterRulesDefault = []; |
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/** |
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* Boolean flag from validation run results if object is valid |
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* |
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* @var boolean |
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*/ |
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protected $valid = false; |
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/** |
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* Errors from last validation run |
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* |
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* @var bool|array |
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*/ |
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protected $validationErrors; |
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/** |
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* initialize |
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*/ |
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public function __construct() |
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{ |
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// save default validation rules and filter rules in-case we add rules |
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$this->validationRulesDefault = $this->validationRules; |
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$this->filterRulesDefault = $this->filterRules; |
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} |
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/** |
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* Get filter rules array |
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* |
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* @return array |
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*/ |
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public function filterRulesGet(): array |
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{ |
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return $this->filterRules; |
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} |
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/** |
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* Get default filter rules array |
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* |
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* @return array |
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*/ |
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public function filterRulesDefault(): array |
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{ |
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return $this->filterRulesDefault; |
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} |
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/** |
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* Get validation rules array |
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* |
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* @return array |
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*/ |
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public function validationRulesGet(): array |
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{ |
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return $this->validationRules; |
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} |
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/** |
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* Get default validation rules array |
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* |
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* @return array |
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*/ |
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public function validationRulesDefault(): array |
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{ |
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return $this->validationRulesDefault; |
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} |
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/** |
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* Set filter rules from array |
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* |
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* @param array $rules |
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* @return array |
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*/ |
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public function filterRules(array $rules = []): array |
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{ |
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$this->filterRules = $rules; |
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return $this->filterRules; |
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} |
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/** |
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* Set validation rules from array |
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* |
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* @param array $rules |
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* @return array |
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*/ |
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public function validationRules(array $rules = []): array |
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{ |
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$this->validationRules = $rules; |
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return $this->validationRules; |
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} |
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/** |
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* Reset filter rules to default |
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* |
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* @return array |
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*/ |
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public function filterReset(): array |
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{ |
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$this->filterRules = $this->filterRulesDefault; |
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return $this->filterRules; |
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} |
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/** |
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* Reset validation rules to default |
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* |
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* @return array |
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*/ |
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public function validationReset(): array |
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{ |
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$this->validationRules = $this->validationRulesDefault; |
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return $this->validationRules; |
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} |
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/** |
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* Add extra filter rules from array |
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* |
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* @param array $rules |
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* @return array |
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*/ |
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public function filterRulesAdd(array $rules = []): array |
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{ |
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$this->filterRules = array_merge($this->filterRules, $rules); |
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return $this->filterRules; |
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} |
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/** |
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* Add extra validation rules from array |
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* |
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* @param array $rules |
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* @return array |
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*/ |
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public function validationRulesAdd(array $rules = []): array |
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{ |
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$this->validationRules = array_merge($this->validationRules, $rules); |
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return $this->validationRules; |
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} |
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/** |
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* Enforce validation required validation check on given fields |
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* or all fields if no array passed in |
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* |
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* @param array optional $fields |
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* @return array $validationRules |
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*/ |
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public function validationRequired(array $fields = []): array |
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{ |
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$rules = $this->validationRules; |
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// force all fields to required if empty |
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if (empty($fields)) { |
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$fields = array_keys($rules); |
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} |
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// appened 'required' to validation rules for fields |
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foreach ($rules as $k => $v) { |
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if (in_array($k, $fields)) { |
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$rules[$k] = 'required|' . $v; |
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} elseif (false !== \UTF::instance()->stristr($v, 'exact_len')) { |
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// special case, exact_len means required otherwise! |
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unset($rules[$k]); |
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} |
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} |
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$this->validationRules = $rules; |
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return $this->validationRules; |
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} |
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/** |
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* Apply filter rules only |
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* |
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* @param array $data |
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* @param array $rules |
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* @return array $data |
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*/ |
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public function filter(array $data = [], array $rules = []): array |
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{ |
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if (empty($data) && method_exists($this, 'cast')) { |
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$data = $this->cast(); |
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} |
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$validator = Helpers\Validator::instance(); |
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$validator->filter_rules(empty($rules) ? $this->filterRules : $rules); |
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return $validator->filter($data); |
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} |
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/** |
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* Filter, then validate |
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* |
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* @param boolean $run GUMP - call 'run' (return true/false) otherwise call 'validate' (return array of errors) |
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* @param array $data optional data array if different values to check outside of this mapper object fields |
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* @param array $validationRules |
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* @param array $filterRules |
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* @return boolean|array of validated data if 'run' otherwise array of errors or boolean if passed 'validate' |
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* @link https://github.com/Wixel/GUMP |
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*/ |
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public function validate($run = true, array $data = [], array $validationRules = [], array $filterRules = []) |
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{ |
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if (empty($data) && method_exists($this, 'cast')) { |
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$data = $this->cast(); |
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} |
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$validator = Helpers\Validator::instance(); |
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$validator->validation_rules(empty($validationRules) ? $this->validationRules : $validationRules); |
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$validator->filter_rules(empty($filterRules) ? $this->filterRules : $filterRules); |
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if (!empty($run)) { |
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// return boolean success/failure after validation |
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$this->valid = is_array($validator->run($validator->filter($data))); |
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return $this->valid; |
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} else { |
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// return array of errors if fail rathern than false |
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$this->validationErrors = $validator->validate($validator->filter($data)); |
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$this->valid = !is_array($this->validationErrors); |
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return $this->valid ? true : $this->validationErrors; |
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} |
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} |
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/** |
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* Process errors of results from (return array of $this->validate(true)) $validator->run($data) into friendlier notifications |
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* |
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* @param mixed $errors errors from $validator->run($data) or get last errors |
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* @return array $notifications |
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*/ |
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public function validationErrors($errors = []): array |
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{ |
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if (empty($errors)) { |
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$errors = $this->validationErrors; |
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if (empty($errors)) { |
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return []; |
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} |
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} |
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$notifications = []; |
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if (is_array($errors)) { |
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foreach ($errors as $e) { |
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$fieldname = ucwords(str_replace('_', ' ', $e['field'])); |
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switch ($e['rule']) { |
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case 'validate_exact_len': |
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$msg = sprintf(_('%s must be exactly %d characters in length.'), |
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$fieldname, $e['param']); |
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break; |
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case 'validate_min_len': |
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$msg = sprintf(_('%s must be at least %d characters.'), |
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$fieldname, $e['param']); |
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break; |
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case 'validate_max_len': |
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$msg = sprintf(_('%s must at most %d characters.'), |
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$fieldname, $e['param']); |
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break; |
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case 'validate_valid_url': |
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$msg = sprintf('URLs must be valid if set.', $fieldname); |
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break; |
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case 'validate_valid_email': |
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$msg = sprintf(_('%s must be a valid email address.'), |
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$fieldname); |
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break; |
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case 'validate_required': |
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$msg = sprintf(_('%s must be entered.'), $fieldname); |
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break; |
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case 'validate_valid_name': |
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$msg = sprintf(_('%s must be a valid name.'), |
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$fieldname); |
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break; |
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case 'validate_boolean': |
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$msg = sprintf(_('%s must be a valid boolean (0/1 false/true off/on yes/no).'), |
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$fieldname); |
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break; |
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default: |
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$msg = sprintf('Exception: %s %s %s', $fieldname, |
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$e['rule'], $e['param']); |
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break; |
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} |
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$notifications[] = $msg; |
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} |
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} |
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return $notifications; |
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} |
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} |
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