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<?php |
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/** |
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* User: delboy1978uk |
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* Date: 29/11/2016 |
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* Time: 19:44 |
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*/ |
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namespace Del\Form; |
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use Del\Form\Collection\FieldCollection; |
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use Del\Form\Field\FieldInterface; |
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use DOMDocument; |
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use DOMElement; |
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class FormRenderer |
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{ |
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/** @var DOMDocument $dom */ |
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private $dom; |
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/** @var DomElement $form */ |
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private $form; |
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/** @var bool $displayErrors */ |
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private $displayErrors; |
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public function __construct($name) |
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{ |
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$this->dom = new DOMDocument(); |
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$form = $this->dom->createElement('form'); |
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$form->setAttribute('name', $name); |
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$this->form = $form; |
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} |
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/** |
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* @param FormInterface $form |
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* @param bool $displayErrors |
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* @return string |
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*/ |
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public function render(FormInterface $form, $displayErrors = true) |
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{ |
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$this->displayErrors = $displayErrors; |
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$this->setFormAttributes($form); |
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$fields = $form->getFields(); |
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$this->processFields($fields); |
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$this->dom->appendChild($this->form); |
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return $this->dom->saveHTML(); |
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} |
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/** |
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* @param FormInterface $form |
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*/ |
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private function setFormAttributes(FormInterface $form) |
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{ |
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$method = $this->getMethod($form); |
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$id = $this->getId($form); |
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$action = $this->getAction($form); |
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$encType = $this->getEncType($form); |
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$class = $form->getClass(); |
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$this->form->setAttribute('id', $id); |
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$this->form->setAttribute('method', $method); |
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$this->form->setAttribute('class', $class); |
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$this->form->setAttribute('action', $action); |
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$this->form->setAttribute('enctype', $encType); |
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} |
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/** |
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* @param FormInterface $form |
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* @return string |
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*/ |
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private function getMethod(FormInterface $form) |
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{ |
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return $form->getMethod() ?: AbstractForm::METHOD_POST; |
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} |
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/** |
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* @param FormInterface $form |
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* @return string |
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*/ |
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private function getId(FormInterface $form) |
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{ |
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return $form->getId() ?: $this->form->getAttribute('name'); |
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} |
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/** |
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* @param FormInterface $form |
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* @return string |
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*/ |
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private function getAction(FormInterface $form) |
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{ |
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return $form->getAction() ?: $this->form->getAttribute('action'); |
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} |
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/** |
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* @param FormInterface $form |
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* @return string |
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*/ |
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private function getEncType(FormInterface $form) |
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{ |
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return $form->getEncType() ?: $this->form->getAttribute('enc-type'); |
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} |
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private function processFields(FieldCollection $fields) |
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{ |
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$fields->rewind(); |
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while ($fields->valid()) { |
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$current = $fields->current(); |
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$child = $this->createFieldDOM($current); |
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$this->form->appendChild($child); |
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$fields->next(); |
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} |
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$fields->rewind(); |
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} |
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/** |
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* @param FieldInterface $field |
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* @return DOMElement |
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*/ |
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private function createFieldDOM(FieldInterface $field) |
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{ |
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$formGroup = $this->dom->createElement('div'); |
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$formGroup->setAttribute('class', 'form-group'); |
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$label = $this->dom->createElement('label'); |
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$label->setAttribute('for', $field->getId()); |
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$label->textContent = $field->getLabel(); |
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$formField = $this->createChildElement($field); |
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$formGroup->appendChild($label); |
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$formGroup->appendChild($formField); |
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if (!$field->isValid() && $this->displayErrors === true) { |
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$formGroup = $this->createHelpBlock($formGroup, $field->getMessages()); |
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} |
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return $formGroup; |
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} |
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private function createHelpBlock(DOMElement $formGroup, array $messages) |
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{ |
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$formGroup->setAttribute('class', 'form-group has-error'); |
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$helpBlock = $this->dom->createElement('span'); |
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$helpBlock->setAttribute('class', 'help-block'); |
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$errorMessages = ''; |
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foreach ($messages as $message) { |
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if(is_array($message)) { |
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foreach ($message as $m) { |
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$errorMessages .= $m."\n"; |
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} |
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} else { |
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$errorMessages .= $message."\n"; |
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} |
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} |
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$helpBlock->textContent = $errorMessages; |
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$formGroup->appendChild($helpBlock); |
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return $formGroup; |
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} |
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/** |
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* @param FieldInterface $field |
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* @return DOMElement |
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*/ |
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private function createChildElement(FieldInterface $field) |
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{ |
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$child = $this->dom->createElement($field->getTag()); |
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$child->setAttribute('type', $field->getTagType()); |
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$child->setAttribute('name', $field->getName()); |
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$child->setAttribute('id', $field->getId()); |
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$child->setAttribute('value', $field->getValue()); |
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$child->setAttribute('class', $field->getClass()); |
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return $child; |
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} |
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} |
delboy1978uk /
form
Our type inference engine has found an assignment to a property that is incompatible with the declared type of that property.
Either this assignment is in error or the assigned type should be added to the documentation/type hint for that property..