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<?php |
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namespace fieldwork\components; |
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use fieldwork\Form; |
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use fieldwork\methods\Method; |
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use fieldwork\sanitizers\FieldSanitizer; |
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use fieldwork\validators\FieldValidator; |
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abstract class Field extends Component |
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{ |
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protected |
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$label, |
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$visible = true, |
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$enabled = true, |
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$restored = false, |
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$value, |
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$initialValue, |
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$latestErrorMsg = "", |
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$forceInvalid = false, |
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$validators = array(), |
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$sanitizers = array(), |
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$collectData = true, |
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$storeValueLocally; |
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/** |
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* Creates a new form field component |
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* |
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* @param string $slug internal slug to use |
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* @param string $label label to display |
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* @param string|string[] $value initial value |
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* @param int $storeValueLocally how long to store last used value in cookie (set to 0 for no cookie) |
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*/ |
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public function __construct ($slug, $label = '', $value = '', $storeValueLocally = 0) |
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{ |
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parent::__construct($slug); |
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$this->label = $label; |
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$this->initialValue = $this->value = $value; |
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$this->storeValueLocally = $storeValueLocally; |
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} |
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public function reset () |
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{ |
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$this->value = $this->initialValue; |
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parent::reset(); |
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} |
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public function setCollectData ($collectData) |
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{ |
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$this->collectData = $collectData; |
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} |
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public function getCollectData () |
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{ |
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return $this->collectData; |
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} |
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/** |
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* Treats the value that was fetched from the request variables. If the control uses a non-scalar to represent its |
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* value, it should be instantiated here |
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* @param string $value |
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* @return string |
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*/ |
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public function importValue ($value) |
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{ |
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return stripslashes($value); |
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} |
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/** |
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* Restores the value from the provided method |
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* @param Method $method |
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* @param bool $sanitize Whether to sanitize the fetched value |
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*/ |
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public function restoreValue (Method $method, $sanitize = true) |
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{ |
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$v = $method->getValue($this->getName(), $this->getRestoreDefault()); |
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if ($this->isMultiple() && is_array($v)) { |
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foreach ($v as &$value) |
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$value = $this->importValue($value); |
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} else { |
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$v = $this->importValue($v); |
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} |
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if ($sanitize) |
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foreach ($this->sanitizers as $s) |
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/* @var $s FieldSanitizer */ |
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$v = $s->sanitize($v); |
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$this->value = $v; |
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$this->restored = true; |
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} |
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/** |
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* Condenses multiple values (e.g. from a multiple select box) into a single string |
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* |
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* @param string[] $values |
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* |
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* @return string |
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*/ |
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public function condenseMultiple ($values = []) |
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{ |
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return implode(',', $values); |
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} |
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/** |
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* Extracts multiple values from a single string |
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* |
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* @param string $value |
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* |
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* @return string[] |
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*/ |
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public function extractMultiple ($value) |
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{ |
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return explode(',', $value); |
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} |
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/** |
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* Determines whether this field allows selection of multiple values |
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* @return bool |
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*/ |
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public function isMultiple () |
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{ |
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return false; |
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} |
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public function submit () |
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{ |
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if ($this->storeValueLocally) |
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setcookie($this->getCookieName(), $this->value, time() + $this->storeValueLocally, '/'); |
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} |
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public function preprocess () |
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{ |
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if ($this->storeValueLocally && isset($_COOKIE[$this->getCookieName()])) |
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$this->value = $_COOKIE[$this->getCookieName()]; |
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} |
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private function getCookieName () |
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{ |
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return $this->getGlobalSlug() . '-vc'; |
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} |
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/** |
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* Gets the value of the name attribute for this field |
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* |
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* @param bool $asMarkup Whether to retrieve the value used in the markup (if true, [] will by default be appended |
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* to fields that allow multiple values) |
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* |
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* @return string |
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*/ |
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public function getName ($asMarkup = false) |
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{ |
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return $this->getGlobalSlug() . (($this->isMultiple() && $asMarkup) ? '[]' : ''); |
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} |
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public function getLabel () |
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{ |
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return $this->label; |
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} |
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/** |
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* Whether to condense multiple values into a single string |
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* |
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* @param bool $condense |
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* |
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* @return string|string[] |
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*/ |
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public function getValue ($condense = true) |
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{ |
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$v = $this->value; |
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if ($condense && $this->isMultiple() && is_array($v)) |
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$v = $this->condenseMultiple($v); |
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return $v; |
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} |
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public function setValue ($value) |
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{ |
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$this->value = $value; |
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return $this; |
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} |
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/** |
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* Sets whether the component is visible |
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* |
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* @param boolean $visible |
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* |
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* @return $this |
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*/ |
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public function setVisible ($visible = true) |
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{ |
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$this->visible = $visible; |
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return $this; |
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} |
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/** |
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* Checks whether the component is visible |
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* @return boolean |
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*/ |
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public function isVisible () |
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{ |
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return $this->visible; |
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} |
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/** |
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* @return array |
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*/ |
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public function getJsonData () |
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{ |
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$v = array(); |
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$s = array(); |
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foreach ($this->validators as $validator) |
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/* @var $validator FieldValidator */ |
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array_push($v, $validator->getJsonData()); |
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foreach ($this->sanitizers as $sanitizer) |
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/* @var $sanitizer FieldSanitizer */ |
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$s[] = $sanitizer->getJsonData(); |
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$valid = $this->restored ? $this->isValid() : true; |
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return array( |
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'valid' => $valid, |
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'error' => $this->latestErrorMsg, |
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'validators' => $v, |
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'sanitizers' => $s, |
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'id' => $this->getID(), |
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'name' => $this->getName(), |
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'collectData' => $this->collectData |
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); |
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} |
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public function getId () |
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{ |
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return "field-" . $this->getGlobalSlug(); |
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} |
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public function getAttributes () |
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{ |
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$attributes = array( |
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"name" => $this->getName(true), |
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"value" => $this->getValue(), |
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"id" => $this->getId() |
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); |
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if (!$this->enabled) |
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$attributes['disabled'] = 'disabled'; |
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return array_merge(parent::getAttributes(), $attributes); |
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} |
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public function getClasses () |
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{ |
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$form = $this->getRoot(); |
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/* @var $form Form */ |
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$formClass = ($form instanceof Form) && $form->isRequested() ? ($this->isValid() ? "valid" : "invalid") : ""; |
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return array_merge(parent::getClasses(), array( |
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"fieldwork-field", |
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$formClass |
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)); |
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} |
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/** |
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* Adds validator |
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* |
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* @param FieldValidator $v |
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* @param boolean $unshift Whether to add the validator to the front of the array |
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* |
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* @return Field |
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*/ |
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public function addValidator (FieldValidator $v, $unshift = false) |
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{ |
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if ($unshift) |
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array_unshift($this->validators, $v); |
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else |
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$this->validators[] = $v; |
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$v->setField($this); |
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return $this; |
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} |
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/** |
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* Adds sanitizer |
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* |
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* @param FieldSanitizer $s |
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* |
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* @return Field |
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*/ |
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public function addSanitizer (FieldSanitizer $s) |
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{ |
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$this->sanitizers[] = $s; |
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return $this; |
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} |
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public function forceInvalid () |
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{ |
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$this->forceInvalid = true; |
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} |
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public function isValid () |
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{ |
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// TODO cache |
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if ($this->forceInvalid) |
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return false; |
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foreach ($this->validators as $validator) { |
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/* @var $validator FieldValidator */ |
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if (!$validator->isValid($this->value)) { |
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$this->latestErrorMsg = $validator->getErrorMsg(); |
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return false; |
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} else if ($validator->skipValidation($this->value)) { |
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return true; |
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} |
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} |
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return true; |
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} |
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public function sanitize () |
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{ |
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foreach ($this->sanitizers as $sanitizer) |
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/* @var $sanitizer FieldSanitizer */ |
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$this->value = $sanitizer->sanitize($this->value); |
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} |
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public function getLatestErrorMsg () |
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{ |
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return $this->latestErrorMsg; |
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} |
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/** |
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* Returns the default value used if the POST var is not set |
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* @return string |
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*/ |
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protected function getRestoreDefault () |
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{ |
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return $this->value; |
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} |
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/** |
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* Sets whether the control is enabled |
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* @param boolean $enabled |
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* @return $this |
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*/ |
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public function setEnabled ($enabled) |
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{ |
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$this->enabled = $enabled; |
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return $this; |
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} |
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/** |
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* Gets the script that will instantiate ONLY this field in an anonymous form |
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* @return string |
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*/ |
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public function getScript () |
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{ |
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return "jQuery(function($){ $('#" . $this->getID() . "').fieldwork(" . json_encode($this->getJsonData(), JSON_PRETTY_PRINT) . "); });"; |
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} |
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/** |
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* Gets the script tag that will instantiate ONLY this field in an anonymous form |
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* @return string |
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*/ |
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public function getScriptHTML () |
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{ |
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$openingTag = "<script type='text/javascript'>"; |
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$closingTag = "</script>"; |
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return $openingTag . $this->getScript() . $closingTag; |
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} |
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} |
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