112 lines
3.1 KiB
PHP
112 lines
3.1 KiB
PHP
<?php
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/**
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* CFormElementCollection class file.
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*
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* @author Qiang Xue <qiang.xue@gmail.com>
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* @link http://www.yiiframework.com/
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* @copyright 2008-2013 Yii Software LLC
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* @license http://www.yiiframework.com/license/
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*/
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/**
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* CFormElementCollection implements the collection for storing form elements.
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*
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* Because CFormElementCollection extends from {@link CMap}, it can be used like an associative array.
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* For example,
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* <pre>
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* $element=$collection['username'];
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* $collection['username']=array('type'=>'text', 'maxlength'=>128);
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* $collection['password']=new CFormInputElement(array('type'=>'password'),$form);
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* $collection[]='some string';
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* </pre>
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*
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* CFormElementCollection can store three types of value: a configuration array, a {@link CFormElement}
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* object, or a string, as shown in the above example. Internally, these values will be converted
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* to {@link CFormElement} objects.
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*
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* @author Qiang Xue <qiang.xue@gmail.com>
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* @package system.web.form
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* @since 1.1
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*/
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class CFormElementCollection extends CMap
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{
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private $_form;
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private $_forButtons;
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/**
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* Constructor.
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* @param CForm $form the form object that owns this collection
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* @param boolean $forButtons whether this collection is used to store buttons.
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*/
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public function __construct($form,$forButtons=false)
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{
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parent::__construct();
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$this->_form=$form;
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$this->_forButtons=$forButtons;
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}
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/**
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* Adds an item to the collection.
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* This method overrides the parent implementation to ensure
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* only configuration arrays, strings, or {@link CFormElement} objects
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* can be stored in this collection.
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* @param mixed $key key
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* @param mixed $value value
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* @throws CException if the value is invalid.
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*/
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public function add($key,$value)
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{
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if(is_array($value))
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{
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if(is_string($key))
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$value['name']=$key;
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if($this->_forButtons)
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{
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$class=$this->_form->buttonElementClass;
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$element=new $class($value,$this->_form);
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}
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else
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{
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if(!isset($value['type']))
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$value['type']='text';
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if($value['type']==='string')
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{
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unset($value['type'],$value['name']);
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$element=new CFormStringElement($value,$this->_form);
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}
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elseif(!strcasecmp(substr($value['type'],-4),'form')) // a form
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{
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$class=$value['type']==='form' ? get_class($this->_form) : Yii::import($value['type']);
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$element=new $class($value,null,$this->_form);
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}
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else
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{
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$class=$this->_form->inputElementClass;
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$element=new $class($value,$this->_form);
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}
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}
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}
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elseif($value instanceof CFormElement)
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{
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if(property_exists($value,'name') && is_string($key))
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$value->name=$key;
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$element=$value;
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}
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else
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$element=new CFormStringElement(array('content'=>$value),$this->_form);
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parent::add($key,$element);
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$this->_form->addedElement($key,$element,$this->_forButtons);
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}
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/**
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* Removes the specified element by key.
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* @param string $key the name of the element to be removed from the collection
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*/
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public function remove($key)
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{
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if(($item=parent::remove($key))!==null)
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$this->_form->removedElement($key,$item,$this->_forButtons);
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}
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}
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