revision_all.module in Revision All 8

Permits configuring content revision settings from a central location. Also makes alterations to existing forms based on user specified settings.

File

revision_all.module

<?php

/**
 * @file
 * Permits configuring content revision settings from a central location. Also
 * makes alterations to existing forms based on user specified settings.
 */

/**
 * Implements hook_menu().
 */
function revision_all_menu() {
  $items['admin/config/content/revision-all'] = array(
    'title' => 'Revision All',
    'description' => 'Configure the revisioning of content types.',
    'page callback' => 'drupal_get_form',
    'page arguments' => array(
      'revision_all_settings_form',
    ),
    'access arguments' => array(
      'administer site configuration',
    ),
  );
  return $items;
}

/**
 * Defines the settings form.
 */
function revision_all_settings_form() {
  $settings = variable_get('revision_all', array());
  $content_types = node_type_get_names();
  $form['revision-all'] = array(
    '#tree' => TRUE,
  );
  $form['revision-all']['revision-all'] = array(
    '#title' => t('Revision All'),
    '#description' => t('Enable revisioning for all content types.'),
    '#type' => 'checkbox',
    '#default_value' => $settings['revision-all'],
  );
  $form['revision-all']['revision-types'] = array(
    '#title' => t('Revisioning By Content Type'),
    '#description' => t('Select the content types you would like revisioned.
      <em>Note</em>: Selecting "Revision All" above overrides these settings.'),
    '#type' => 'fieldset',
    '#attributes' => array(
      'id' => 'revision-all-revision-types',
    ),
    '#states' => array(
      'visible' => array(
        ':input[name=revision-all[revision-all]]' => array(
          'checked' => FALSE,
        ),
      ),
    ),
  );
  while ($type = current($content_types)) {
    $key = key($content_types);
    $type_settings = variable_get("node_options_{$key}", array());
    $default_value = in_array('revision', $type_settings);
    $form['revision-all']['revision-types'][$type] = array(
      '#title' => t($type),
      '#type' => 'checkbox',
      '#default_value' => $default_value,
    );
    next($content_types);
  }
  $form['revision-all']['enable-future'] = array(
    '#title' => t('Enable for all Future Content Types'),
    '#description' => t('Automatically checks the "Create new revision" checkbox
      when creating new content types.'),
    '#type' => 'checkbox',
    '#default_value' => $settings['enable-future'],
  );
  $form['revision-all']['prevent-override'] = array(
    '#title' => t('Prevent Revisioning Overrides'),
    '#description' => t('Disables the "create revision" checkbox from node
      forms.'),
    '#type' => 'checkbox',
    '#default_value' => $settings['prevent-override'],
  );
  $form['submit'] = array(
    '#type' => 'submit',
    '#value' => t('Save configuration'),
  );
  return $form;
}

/**
 * Processes the settings form.
 *
 * @param  $form
 *  The form being processed.
 * @param  $form_state
 *  The state of the form upon submission.
 */
function revision_all_settings_form_submit(&$form, &$form_state) {
  $content_types = node_type_get_names();
  $revision_all = $form_state['values']['revision-all']['revision-all'];
  $revision_types = $form_state['values']['revision-all']['revision-types'];
  unset($form_state['values']['revision-all']['revision-types']);
  variable_set('revision_all', $form_state['values']['revision-all']);
  while ($type = current($content_types)) {
    $key = key($content_types);
    $settings_key = "node_options_{$key}";
    $type_settings = variable_get($settings_key, array());
    $should_revision = $revision_all || $revision_types[$type];
    $currently_revision = array_search('revision', $type_settings);
    if ($should_revision && $currently_revision === FALSE) {
      $type_settings[] = 'revision';
    }
    elseif ($currently_revision !== FALSE && !$should_revision) {
      unset($type_settings[$currently_revision]);
    }
    variable_set($settings_key, $type_settings);
    next($content_types);
  }
  drupal_set_message(t('Revisioning Set'));
}

/**
 * Implements hook_form_alter().
 *
 * If the "Enable for all Future Content Types" setting is checked, the node
 * type form is altered to set "Create new revision" by default.
 */
function revision_all_form_node_type_form_alter(&$form, &$form_state) {
  $settings = variable_get('revision_all', array());
  if ($settings['enable-future'] && empty($form['#node_type']->type)) {
    $form['workflow']['node_options']['#default_value'][] = 'revision';
  }
}

/**
 * Implements hook_form_alter().
 *
 * If the "Revision All" setting is checked, check the "Create new revision"
 * checkbox.
 *
 * If the "Prevent Revisioning Overrides" setting is checked, node forms are
 * altered to disable access to the "Create new revision" checkbox.
 */
function revision_all_form_alter(&$form, &$form_state, $form_id) {
  $settings = variable_get('revision_all', array());
  if (!empty($form['#node_edit_form'])) {
    if ($settings['revision-all']) {
      $form['revision_information']['revision']['#default_value'] = TRUE;
    }
    if ($settings['prevent-override']) {
      $form['revision_information']['revision']['#disabled'] = TRUE;
    }
  }
}

Functions

Name	Description
revision_all_form_alter	Implements hook_form_alter().
revision_all_form_node_type_form_alter	Implements hook_form_alter().
revision_all_menu	Implements hook_menu().
revision_all_settings_form	Defines the settings form.
revision_all_settings_form_submit	Processes the settings form.