/**
* Form::element()
* get or create an element
*
* @param string $key
* @param mixed $mixedTypeIndex FALSE/ int : get element, string: create element
* @param array $settings
* @return Form_Element
*/
public function element($key, $mixedTypeIndex = FALSE, $settings = array())
{
if ($mixedTypeIndex === FALSE) {
/**
* get element
*/
if (isset($this->_fields[$key])) {
if ($this->_fields[$key]['group'] === TRUE) {
// return array(group)
return $this->_fields[$key]['elements'];
} else {
// return first element (not group)
return $this->_fields[$key]['elements'][0];
}
} else {
return FALSE;
}
} elseif (is_int($mixedTypeIndex)) {
/**
* get n'th element
*/
if (isset($this->_fields[$key]) && isset($this->_fields[$key]['elements'][$mixedTypeIndex])) {
return $this->_fields[$key]['elements'][$mixedTypeIndex];
} else {
return FALSE;
}
} else {
/**
* add element
*/
// raise event
Event::raise($this, Event::BEFORE_FORM_ELEMENT, array('form' => $this, 'key' => $key, 'type' => $mixedTypeIndex, 'settings' => $settings));
// create the element
$element = new Form_Element($key, $mixedTypeIndex, $settings);
// get field
if (isset($this->_fields[$key])) {
// get existing field
$field = $this->_fields[$key];
// check if existing elementnames should be updated
if ($field['group'] === FALSE) {
$updateName = TRUE;
} else {
$updateName = FALSE;
}
// set group property to true
$field['group'] = TRUE;
} else {
// create new field
$field = array('group' => FALSE, 'multiple' => FALSE, 'elements' => array(), 'rules' => array(), 'processors' => array(), 'default' => NULL, 'compound' => FALSE, 'keys' => array());
$updateName = FALSE;
}
// check & set compound
if (isset($settings['compound']) && $settings['compound'] == TRUE) {
$field['compound'] = TRUE;
}
// check $ set compound keys
if (isset($settings['keys'])) {
$field['keys'] = $settings['keys'];
}
// check if a default was given & set default
if (isset($settings['default'])) {
$field['default'] = $settings['default'];
}
// check if the group property is explicitly set
if (isset($settings['group']) && $settings['group'] == TRUE) {
$field['group'] = TRUE;
}
// check if it is multiple
$field['multiple'] = $element->multiple();
// create name
$name = $key;
if ($field['group'] === TRUE) {
$name .= '[]';
}
if ($field['multiple'] === TRUE) {
$name .= '[]';
}
// set name of this element
$element->name($name);
// update existing elements if necesary
if ($updateName === TRUE) {
$this->_fields[$key]['elements'][0]->name($name);
}
// store element
$field['elements'][] = $element;
// store field
$this->_fields[$key] = $field;
// store element in list
$this->_elements[] = $element;
// raise hook
Event::raise($this, Event::AFTER_FORM_ELEMENT, array('form' => $this, 'element' => $element));
// return element
return $element;
}
}
