/**
* Process an argument string to return an array of argments
* @param I2CE_Page $page
* @param DOMNode $node
* @param string $arg
* @param boolean $templatefunction. Defaults to false. If true we preend the $node, and $template to the argument list for the funciton.
* @returns array
*/
public static function getArguments($page, $node, $arg, $templatefunction = false)
{
self::$page = $page;
self::$node = $node;
return self::callModuleFunction(false, false, $arg, $templatefunction);
}
/**
* Process any form elements on the page.
*
* This method will parse all form elements on the page to replace the values if they are known.
* There are three type of form directives for a span. The first two are as follows
* <span type='form' name='form_name:form_field_name'></span>
* and <span type='form' name='form_name->method_name(args)'></span>
* In each case we find the form with form name 'form_name'.
* In the first case, we call the processDom() method for the form field identified by form_field_name.
* For the seconcd case we call the method_name method of the form with the arguments specified by args.
*
* The last case is for
* <span type='form' name='form_field_name'></span>
* In this case is like the first case except that the form used is the default form for this page.
*
*/
public function processForms($page)
{
if (!$page instanceof I2CE_Page) {
I2CE::raiseError("Did not receive expected page");
return false;
}
$template = $page->getTemplate();
$user = $page->getUser();
$qry = '//span[@type=\'form\']';
$results = $template->query($qry);
for ($i = 0; $i < $results->length; $i++) {
$node = $results->item($i);
$node->removeAttribute('type');
if (!$node->hasAttribute('name')) {
continue;
}
$name = trim($node->getAttribute("name"));
if (!$name) {
continue;
}
//the following regular expression matches any valid PHP function or label: http://us3.php.net/functions
$phpfunc = '[a-zA-Z_\\x7f-\\xff][a-zA-Z0-9_\\x7f-\\xff]*';
if (preg_match("/^({$phpfunc}):({$phpfunc})\$/", $name, $matches)) {
$form = $template->getData('FORM', $matches[1], $node, false, true);
if ($form instanceof I2CE_Form && $form->getName() != $matches[1]) {
I2CE::raiseError("Form name mismatch " . $form->getName() . '!=' . $matches[1]);
$form = null;
}
$method = 'displayField';
if (!array_key_exists(3, $matches)) {
$matches[3] = null;
}
$args = array($matches[2], substr($matches[3], 1, -1));
} else {
if (preg_match("/^({$phpfunc})\$/", $name, $matches)) {
$form = $template->getDefaultData('FORM');
$method = 'displayField';
if (!array_key_exists(2, $matches)) {
$matches[2] = null;
}
$args = array($matches[1], substr($matches[2], 1, -1));
} else {
if (preg_match("/^({$phpfunc})->({$phpfunc})(\\(.*\\))\$/", $name, $matches)) {
$node->removeAttribute('name');
$form = $template->getData('FORM', $matches[1], $node, false, true);
if (!$form instanceof I2CE_Form) {
continue;
}
if (!$form->_hasMethod($matches[2])) {
continue;
}
$args = I2CE_Module_Tags::getArguments($page, $node, $matches[3], true);
if (count($args) < 2) {
continue;
}
@call_user_func_array(array($form, $matches[2]), $args);
continue;
} else {
continue;
}
}
}
if ($form instanceof I2CE_Form) {
$form->processDOM($node, $template, $method, $args);
} else {
$node->parentNode->removeChild($node);
}
}
$results = $template->query('//*[@form]');
for ($i = 0; $i < $results->length; $i++) {
$node = $results->item($i);
$form = $node->getAttribute('form');
$orig_form = $form;
$node->removeAttribute('form');
if (!$form) {
continue;
}
try {
//example <span form='$user->displayField("surname")'/> is the same as <span type='form' name='user:surname'>
//which is the same as <span form='$user->surname->processDOM()'/>
I2CE_Module_Tags::callModuleFunction('', false, $form, true, 'FORM');
//try to call a template function
} catch (Exception $e) {
I2CE::raiseError("Could not evaluate {$orig_form}:\n" . $e->getMessage());
continue;
}
}
//now we fix up any <form> tags that have a file input
$forms = $template->query('//form');
for ($i = 0; $i < $forms->length; $i++) {
$form = $forms->item($i);
$file_inputs = $template->query('.//input[@type="file"]', $form);
if ($file_inputs->length == 0) {
continue;
}
$form->setAttribute('enctype', 'multipart/form-data');
}
}
