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EditFormBuilder.inc
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EditFormBuilder.inc
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<?php
// $Id$
/*
* @file
*
*/
module_load_include('inc', 'islandora_form_builder', 'FormBuilderInterface');
/**
*
*/
class EditFormBuilder implements FormBuilderInterface {
/**
* Drupal persistance form storage, specifically the index STORAGE_KEY where all
* persistant data related to the islandora_form_builder is kept.
*
* @var array
*/
protected $storage;
/**
* The pid of the object whose datastream will be modify.
*
* @var string
*/
protected $pid;
/**
* The name of the form to create.
*
* @var string
*/
protected $formName;
/**
* Create the Edit Form Builder.
*
* @param array $form_state
* @param string $pid
*/
public function __construct(&$form_state, $pid = NULL, $form_name = NULL) {
$this->initializeStorage($form_state, $pid, $form_name);
$this->formState = &$form_state;
$this->storage = &$this->formState['storage'][STORAGE_KEY];
$this->pid = $this->storage['pid'];
$this->formName = $this->storage['form_name'];
}
/**
* Initialize the form's persistant storage.
*
* @param array $form_state
* @param string $pid
*/
private function initializeStorage(&$form_state, $pid = NULL, $form_name = NULL) {
if (!is_array($form_state['storage'][STORAGE_KEY])) {
$form_state['storage'][STORAGE_KEY] = array();
}
$storage = &$form_state['storage'][STORAGE_KEY];
$storage['pid'] = isset($storage['pid']) ? $storage['pid'] : $pid;
$storage['form_name'] = isset($storage['form_name']) ? $storage['form_name'] : $form_name;
}
/**
* Gets the edit form for rendering.
*
* @return array
* Returns a Drupal form if the user can create one and the form exists in the content model,
* otherwise it returns FALSE.
*/
public function createForm() {
$builder = &$this->createEditFormBuilder();
return $builder->createForm($form);
}
/**
* Not currently used...
*
* @param array $form
* Drupal form to be validated.
*/
public function validateForm(&$form) {
$builder = &$this->createEditFormBuilder();
return $builder->validateForm($form);
}
/**
* Submit the form. Modify the datastream identified by $this->dsid.
*
* @param array $form
* Drupal form to be validated.
*/
public function submitForm(&$form) {
$builder = &$this->createEditFormBuilder();
return $builder->submitForm($form);
}
private function &createEditFormBuilder() {
module_load_include('inc', 'fedora_repository', 'ContentModel');
$content_model = ContentModel::loadFromObject($this->pid);
$form_element = $content_model->getForm($this->formName);
$module = $form_element->getAttribute('edit_module');
$filename = $form_element->getAttribute('edit_file');
$class = $form_element->getAttribute('edit_class');
$dsid = $form_element->getAttribute('dsid');
$file = './' . drupal_get_path('module', $module) . "/$filename";
if (is_file($file)) {
require_once $file;
}
else {
return FALSE;
}
$form = new $class($this->formState, $this->pid, $dsid, $this->formName);
return $form;
}
}