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  1. <?php
  2. /**
  3.  * Helper for rendering mulpile form array elements.
  4.  * @see http://stackoverflow.com/questions/13157113/zf-form-array-field-how-to-display-values-in-the-view-correctly
  5.  */
  6. class Website_View_Helper_FormArrayElements extends Zend_View_Helper_Abstract
  7. {
  8. 	private $elements;
  9.  
  10. 	private $partial;
  11.  
  12. 	/**
  13. 	 * Creates a helper instance.
  14. 	 * @param array $arrayElements array of elements that are used in the given partial script; they must be an array fields
  15. 	 * @param string $partial script to render for each value in the given form array elements
  16. 	 * @return Website_View_Helper_FormArrayElements
  17. 	 */
  18. 	public function formArrayElements(array $arrayElements, $partial){
  19. 		// check some preconditions
  20. 		if(count($arrayElements) == 0)
  21. 			throw InvalidArgumentException('Elements array must contain at least one element.');
  22. 		foreach($arrayElements as $element){
  23. 			if(!$element instanceof Zend_Form_Element)
  24. 				throw InvalidArgumentException('Elements of class ' . get_class($element) . ' is not a form element.');
  25. 			/* @var $element Zend_Form_Element */
  26. 			if(!$element->isArray())
  27. 				throw InvalidArgumentException('Element [' . $element->getName() . '] is not an array.');
  28. 		}
  29. 		$this->elements = $arrayElements;
  30. 		$this->partial = $partial;
  31. 		return $this;
  32. 	}
  33.  
  34. 	/**
  35. 	 * Render the fields.
  36. 	 */
  37. 	public function render(){
  38. 		$values = array();
  39. 		// only if the form were submitted we need to validate fields' values
  40. 		// and display errors next to them; otherwise when user enter the page
  41. 		// and render the form for the first time - he would see Required validator errors
  42. 		$needsValidation = false;
  43. 		foreach($this->elements as $element){
  44. 			$v = $element->getValue();
  45. 			if(is_array($v)){
  46. 				$needsValidation = true;
  47. 				$values[$element->getName()] = $v;
  48. 			}
  49. 			else{
  50. 				// print empty fields when the form is displayed the first time
  51. 				$values[$element->getName()] = array('');
  52. 			}
  53. 		}
  54. 		// iterate over all values
  55. 		$rendered = '';
  56. 		foreach(array_keys(current($values)) as $valueKey){
  57. 			$elements = array();
  58. 			foreach($this->elements as $element){
  59. 				$currentValue = $values[$element->getName()][$valueKey];
  60. 				if($needsValidation)
  61. 					$element->isValid($currentValue);
  62. 				$elements[$element->getName()] = (string)$element->setValue($currentValue);
  63. 			}
  64. 			$rendered .= $this->view->partial($this->partial, $elements);
  65. 		}
  66. 		return $rendered;
  67. 	}
  68.  
  69. 	public function __toString(){
  70. 		return $this->render();
  71. 	}
  72. }
Runtime error #stdin #stdout #stderr 0.01s 20520KB
comments ()
stdin 
Standard input is empty
stdout 
Standard output is empty
stderr 
PHP Fatal error:  Class 'Zend_View_Helper_Abstract' not found in /home/rK3qxF/prog.php on line 7
https://ideone.com/wjLHy8
language:
PHP (php 7.3.5)
created:
11 years ago
visibility:
public

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