Issue #2091397 by vijaycs85, batigolix, targoo, jhodgdon | ifrik: Create...

Issue #2091397 by vijaycs85, batigolix, targoo, jhodgdon | ifrik: Create hook_help for Datetime module.

core/modules/datetime/datetime.module

@@ -26,6 +26,26 @@
  */
 const DATETIME_DATE_STORAGE_FORMAT = 'Y-m-d';
 
+/**
+ * Implements hook_help().
+ */
+function datetime_help($path, $arg) {
+  switch ($path) {
+    case 'help.page.datetime':
+      $output = '';
+      $output .= '<h3>' . t('About') . '</h3>';
+      $output .= '<p>' . t('The Datetime module provides a Date field that stores dates and times. It also provides the Form API elements <em>datetime</em> and <em>datelist</em> for use in programming modules. See the <a href="!field">Field module help</a> and the <a href="!field_ui">Field UI module help</a> pages for general information on fields and how to create and manage them. For more information, see the <a href="!datetime_do">online documentation for the Datetime module</a>.', array('!field' => \Drupal::url('help.page', array('name' => 'field')), '!field_ui' => \Drupal::url('help.page', array('name' => 'field_ui')), '!datetime_do' => 'https://drupal.org/documentation/modules/datetime')) . '</p>';
+      $output .= '<h3>' . t('Uses') . '</h3>';
+      $output .= '<dl>';
+      $output .= '<dt>' . t('Managing and displaying date fields') . '</dt>';
+      $output .= '<dd>' . t('The <em>settings</em> and the <em>display</em> of the Date field can be configured separately. See the <a href="!field_ui">Field UI help</a> for more information on how to manage fields and their display.', array('!field_ui' => \Drupal::url('help.page', array('name' => 'field_ui')))) . '</dd>';
+      $output .= '<dt>' . t('Displaying dates') . '</dt>';
+      $output .= '<dd>' . t('Dates can be displayed using the <em>Plain</em> or the <em>Default</em> formatter. The <em>Plain</em> formatter displays the date in the <a href="http://en.wikipedia.org/wiki/ISO_8601">ISO 8601</a> format. If you choose the <em>Default</em> formatter, you can choose a format from a predefined list that can be managed on the <a href="!date_format_list">Date and time formats</a> page.', array('!date_format_list'=> \Drupal::url('system.date_format_list'))) . '</dd>';
+      $output .= '</dl>';
+      return $output;
+    }
+}
+
 /**
  * Implements hook_element_info().
  */