Commit 875e99be authored by Dries's avatar Dries
Browse files

- Patch #88109 by Eaton, chx et al: FormAPI 2.0 doesn't support dynamic form ids.

parent 1afb654e
......@@ -163,11 +163,31 @@ function drupal_execute($form_id, $form_values) {
function drupal_retrieve_form($form_id) {
static $forms;
// We save two copies of the incoming arguments: one for modules to use
// when mapping form ids to builder functions, and another to pass to
// the builder function itself. We shift out the first argument -- the
// $form_id itself -- from the list to pass into the builder function,
// since it's already known.
$args = func_get_args();
$saved_args = $args;
// We first check to see if there's a function named after the $form_id.
// If there is, we simply pass the arguments on to it to get the form.
if (!function_exists($form_id)) {
if (!isset($forms)) {
$forms = module_invoke_all('forms');
// In cases where many form_ids need to share a central builder function,
// such as the node editing form, modules can implement hook_forms(). It
// maps one or more form_ids to the correct builder functions.
// We cache the results of that hook to save time, but that only works
// for modules that know all their form_ids in advance. (A module that
// adds a small 'rate this comment' form to each comment in a list
// would need a unique form_id for each one, for example.)
// So, we call the hook if $forms isn't yet populated, OR if it doesn't
// yet have an entry for the requested form_id.
if (!isset($forms) || !isset($forms[$form_id])) {
$forms = module_invoke_all('forms', $saved_args);
$form_definition = $forms[$form_id];
if (isset($form_definition['callback arguments'])) {
......@@ -177,14 +197,15 @@ function drupal_retrieve_form($form_id) {
$callback = $form_definition['callback'];
// $callback comes from a hook_forms() implementation
// If $callback was returned by a hook_forms() implementation, call it.
// Otherwise, call the function named after the form id.
$form = call_user_func_array(isset($callback) ? $callback : $form_id, $args);
// We store the original function arguments, rather than the final $arg
// value, so that form_alter functions can see what was originally
// passed to drupal_retrieve_form(). This allows the contents of #parameters
// to be saved and passed in at a later date to recreate the form.
$form['#parameters'] = func_get_args();
$form['#parameters'] = $saved_args;
return $form;
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