function template_preprocess_theming_example_text_form in Examples for Developers 7

Implements template_preprocess().

We prepare variables for use inside the theming-example-text-form.tpl.php template file.

In this example, we create a couple new variables, 'text_form' and 'text_form_content', that clean up the form output. Drupal will turn the array keys in the $variables array into variables for use in the template.

So $variables['text_form'] becomes available as $text_form in the template.

See also

theming-example-text-form.tpl.php

Related topics

File

theming_example/theming_example.module, line 360

Explains how a module declares theme functions, preprocess functions, and templates.

Code

function template_preprocess_theming_example_text_form(&$variables) {
  $variables['text_form_content'] = array();
  $text_form_hidden = array();

  // Each form element is rendered and saved as a key in $text_form_content, to
  // give the themer the power to print each element independently in the
  // template file.  Hidden form elements have no value in the theme, so they
  // are grouped into a single element.
  foreach (element_children($variables['form']) as $key) {
    $type = $variables['form'][$key]['#type'];
    if ($type == 'hidden' || $type == 'token') {
      $text_form_hidden[] = drupal_render($variables['form'][$key]);
    }
    else {
      $variables['text_form_content'][$key] = drupal_render($variables['form'][$key]);
    }
  }
  $variables['text_form_content']['hidden'] = implode($text_form_hidden);

  // The entire form is then saved in the $text_form variable, to make it easy
  // for the themer to print the whole form.
  $variables['text_form'] = implode($variables['text_form_content']);
}