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<?php |
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namespace SilverStripe\Forms; |
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use SilverStripe\Core\Object; |
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use SilverStripe\ORM\ValidationResult; |
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/** |
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* This validation class handles all form and custom form validation through the use of Required |
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* fields. It relies on javascript for client-side validation, and marking fields after server-side |
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* validation. It acts as a visitor to individual form fields. |
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*/ |
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abstract class Validator extends Object |
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{ |
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public function __construct() |
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{ |
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parent::__construct(); |
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$this->resetResult(); |
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} |
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/** |
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* @var Form $form |
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*/ |
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protected $form; |
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/** |
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* @var ValidationResult $result |
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*/ |
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protected $result; |
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/** |
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* @param Form $form |
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* @return $this |
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*/ |
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public function setForm($form) |
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{ |
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$this->form = $form; |
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return $this; |
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} |
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/** |
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* Returns any errors there may be. |
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* |
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* @return ValidationResult |
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*/ |
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public function validate() |
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{ |
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$this->resetResult(); |
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$this->php($this->form->getData()); |
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return $this->result; |
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} |
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/** |
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* Callback to register an error on a field (Called from implementations of |
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* {@link FormField::validate}). The optional error message type parameter is loaded into the |
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* HTML class attribute. |
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* |
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* See {@link getErrors()} for details. |
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* |
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* @param string $fieldName Field name for this error |
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* @param string $message The message string |
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* @param string $messageType The type of message: e.g. "bad", "warning", "good", or "required". Passed as a CSS |
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* class to the form, so other values can be used if desired. |
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* @param string|bool $cast Cast type; One of the CAST_ constant definitions. |
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* Bool values will be treated as plain text flag. |
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* @return $this |
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*/ |
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public function validationError( |
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$fieldName, |
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$message, |
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$messageType = ValidationResult::TYPE_ERROR, |
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$cast = ValidationResult::CAST_TEXT |
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) { |
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$this->result->addFieldError($fieldName, $message, $messageType, null, $cast); |
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return $this; |
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} |
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/** |
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* Returns all errors found by a previous call to {@link validate()}. The returned array has a |
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* structure resembling: |
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* |
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* <code> |
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* array( |
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* 'fieldName' => '[form field name]', |
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* 'message' => '[validation error message]', |
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* 'messageType' => '[bad|message|validation|required]', |
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* 'messageCast' => '[text|html]' |
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* ) |
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* </code> |
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* |
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* @return null|array |
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*/ |
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public function getErrors() |
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{ |
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if ($this->result) { |
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return $this->result->getMessages(); |
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} |
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return null; |
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} |
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/** |
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* Get last validation result |
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* |
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* @return ValidationResult |
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*/ |
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public function getResult() |
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{ |
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return $this->result; |
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} |
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/** |
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* Returns whether the field in question is required. This will usually display '*' next to the |
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* field. The base implementation always returns false. |
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* |
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* @param string $fieldName |
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* |
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* @return bool |
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*/ |
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public function fieldIsRequired($fieldName) |
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{ |
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return false; |
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} |
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/** |
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* @param array $data |
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* |
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* @return mixed |
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*/ |
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abstract public function php($data); |
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/** |
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* Clear current result |
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* |
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* @return $this |
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*/ |
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protected function resetResult() |
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{ |
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$this->result = ValidationResult::create(); |
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return $this; |
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} |
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} |
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silverstripe /
silverstripe-framework
