• views/includes/form.inc::drupal_process_form_new($form_id, &$form, &$form_state) api
    • $form_state
    • $form = form_builder($form_id, $form, $form_state); api
    • if(… $form['#post']…)
  • form_builder($form_id, $form, $form_state)
    • …
    • foreach (element_children($form) as $key)
      • …
      • $form[$key] = form_builder($form_id, $form[$key], $form_state);
        • #input: _form_builder_handle_input_element($form_id, $form, $form_state, $complete_form);
          • $function = !empty($form['#value_callback']) ? $form['#value_callback'] : 'form_type_'. $form['#type'] .'_value';
          • Bsp. $form['#type']='radios'
            • if (function_exists($function)): $form['#value'] = $function($form); (std. form_type_radios_value) * foreach ($form['#process'] as $process) * etwa process=expand_radios api * return $element; (array) * $form = $process($form, isset($edit) ? $edit : NULL, $form_state, $complete_form); * … * return $form;