diff -r 07239de796bb -r e756a8c72c3d cms/drupal/modules/forum/forum.admin.inc
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/cms/drupal/modules/forum/forum.admin.inc	Fri Sep 08 12:04:06 2017 +0200
@@ -0,0 +1,352 @@
+<?php
+
+/**
+ * @file
+ * Administrative page callbacks for the Forum module.
+ */
+
+/**
+ * Page callback: Returns a form for creating a new forum or container.
+ *
+ * @param $type
+ *   What is being added. Possible values are 'forum' and 'container'.
+ * @param $edit
+ *   (optional) Associative array containing a forum term to be edited.
+ *   Defaults to an empty array.
+ *
+ * @return
+ *   A form for creating a new forum or container.
+ *
+ * @see forum_menu()
+ */
+function forum_form_main($type, $edit = array()) {
+  $edit = (array) $edit;
+  if ((isset($_POST['op']) && $_POST['op'] == t('Delete')) || !empty($_POST['confirm'])) {
+    return drupal_get_form('forum_confirm_delete', $edit['tid']);
+  }
+  switch ($type) {
+    case 'forum':
+      return drupal_get_form('forum_form_forum', $edit);
+      break;
+    case 'container':
+      return drupal_get_form('forum_form_container', $edit);
+      break;
+  }
+}
+
+/**
+ * Form constructor for adding and editing a forum.
+ *
+ * @param $edit
+ *   (optional) Associative array containing a forum term to be added or edited.
+ *   Defaults to an empty array.
+ *
+ * @see forum_form_submit()
+ * @ingroup forms
+ */
+function forum_form_forum($form, &$form_state, $edit = array()) {
+  $edit += array(
+    'name' => '',
+    'description' => '',
+    'tid' => NULL,
+    'weight' => 0,
+  );
+  $form['name'] = array('#type' => 'textfield',
+    '#title' => t('Forum name'),
+    '#default_value' => $edit['name'],
+    '#maxlength' => 255,
+    '#description' => t('Short but meaningful name for this collection of threaded discussions.'),
+    '#required' => TRUE,
+  );
+  $form['description'] = array('#type' => 'textarea',
+    '#title' => t('Description'),
+    '#default_value' => $edit['description'],
+    '#description' => t('Description and guidelines for discussions within this forum.'),
+  );
+  $form['parent']['#tree'] = TRUE;
+  $form['parent'][0] = _forum_parent_select($edit['tid'], t('Parent'), 'forum');
+  $form['weight'] = array('#type' => 'weight',
+    '#title' => t('Weight'),
+    '#default_value' => $edit['weight'],
+    '#description' => t('Forums are displayed in ascending order by weight (forums with equal weights are displayed alphabetically).'),
+  );
+
+  $form['vid'] = array('#type' => 'hidden', '#value' => variable_get('forum_nav_vocabulary', ''));
+  $form['actions'] = array('#type' => 'actions');
+  $form['actions']['submit'] = array('#type' => 'submit', '#value' => t('Save'));
+  if ($edit['tid']) {
+    $form['actions']['delete'] = array('#type' => 'submit', '#value' => t('Delete'));
+    $form['tid'] = array('#type' => 'hidden', '#value' => $edit['tid']);
+  }
+  $form['#submit'][] = 'forum_form_submit';
+  $form['#theme'] = 'forum_form';
+
+  return $form;
+}
+
+/**
+ * Form submission handler for forum_form_forum() and forum_form_container().
+ */
+function forum_form_submit($form, &$form_state) {
+  if ($form['form_id']['#value'] == 'forum_form_container') {
+    $container = TRUE;
+    $type = t('forum container');
+  }
+  else {
+    $container = FALSE;
+    $type = t('forum');
+  }
+
+  $term = (object) $form_state['values'];
+  $status = taxonomy_term_save($term);
+  switch ($status) {
+    case SAVED_NEW:
+      if ($container) {
+        $containers = variable_get('forum_containers', array());
+        $containers[] = $term->tid;
+        variable_set('forum_containers', $containers);
+      }
+      $form_state['values']['tid'] = $term->tid;
+      drupal_set_message(t('Created new @type %term.', array('%term' => $form_state['values']['name'], '@type' => $type)));
+      break;
+    case SAVED_UPDATED:
+      drupal_set_message(t('The @type %term has been updated.', array('%term' => $form_state['values']['name'], '@type' => $type)));
+      // Clear the page and block caches to avoid stale data.
+      cache_clear_all();
+      break;
+  }
+  $form_state['redirect'] = 'admin/structure/forum';
+  return;
+}
+
+/**
+ * Returns HTML for a forum form.
+ *
+ * By default this does not alter the appearance of a form at all, but is
+ * provided as a convenience for themers.
+ *
+ * @param $variables
+ *   An associative array containing:
+ *   - form: A render element representing the form.
+ *
+ * @ingroup themeable
+ */
+function theme_forum_form($variables) {
+  return drupal_render_children($variables['form']);
+}
+
+/**
+ * Form constructor for adding and editing forum containers.
+ *
+ * @param $edit
+ *   (optional) Associative array containing a container term to be added or edited.
+ *   Defaults to an empty array.
+ *
+ * @see forum_form_submit()
+ * @ingroup forms
+ */
+function forum_form_container($form, &$form_state, $edit = array()) {
+  $edit += array(
+    'name' => '',
+    'description' => '',
+    'tid' => NULL,
+    'weight' => 0,
+  );
+  // Handle a delete operation.
+  $form['name'] = array(
+    '#title' => t('Container name'),
+    '#type' => 'textfield',
+    '#default_value' => $edit['name'],
+    '#maxlength' => 255,
+    '#description' => t('Short but meaningful name for this collection of related forums.'),
+    '#required' => TRUE
+  );
+
+  $form['description'] = array(
+    '#type' => 'textarea',
+    '#title' => t('Description'),
+    '#default_value' => $edit['description'],
+    '#description' => t('Description and guidelines for forums within this container.')
+  );
+  $form['parent']['#tree'] = TRUE;
+  $form['parent'][0] = _forum_parent_select($edit['tid'], t('Parent'), 'container');
+  $form['weight'] = array(
+    '#type' => 'weight',
+    '#title' => t('Weight'),
+    '#default_value' => $edit['weight'],
+    '#description' => t('Containers are displayed in ascending order by weight (containers with equal weights are displayed alphabetically).')
+  );
+
+  $form['vid'] = array(
+    '#type' => 'hidden',
+    '#value' => variable_get('forum_nav_vocabulary', ''),
+  );
+  $form['actions'] = array('#type' => 'actions');
+  $form['actions']['submit'] = array(
+    '#type' => 'submit',
+    '#value' => t('Save')
+  );
+  if ($edit['tid']) {
+    $form['actions']['delete'] = array('#type' => 'submit', '#value' => t('Delete'));
+    $form['tid'] = array('#type' => 'value', '#value' => $edit['tid']);
+  }
+  $form['#submit'][] = 'forum_form_submit';
+  $form['#theme'] = 'forum_form';
+
+  return $form;
+}
+
+/**
+ * Form constructor for confirming deletion of a forum taxonomy term.
+ *
+ * @param $tid
+ *   ID of the term to be deleted.
+ *
+ * @see forum_confirm_delete_submit()
+ * @ingroup forms
+ */
+function forum_confirm_delete($form, &$form_state, $tid) {
+  $term = taxonomy_term_load($tid);
+
+  $form['tid'] = array('#type' => 'value', '#value' => $tid);
+  $form['name'] = array('#type' => 'value', '#value' => $term->name);
+
+  return confirm_form($form, t('Are you sure you want to delete the forum %name?', array('%name' => $term->name)), 'admin/structure/forum', t('Deleting a forum or container will also delete its sub-forums, if any. To delete posts in this forum, visit <a href="@content">content administration</a> first. This action cannot be undone.', array('@content' => url('admin/content'))), t('Delete'), t('Cancel'));
+}
+
+/**
+ * Form submission handler for forum_confirm_delete().
+ */
+function forum_confirm_delete_submit($form, &$form_state) {
+  taxonomy_term_delete($form_state['values']['tid']);
+  drupal_set_message(t('The forum %term and all sub-forums have been deleted.', array('%term' => $form_state['values']['name'])));
+  watchdog('content', 'forum: deleted %term and all its sub-forums.', array('%term' => $form_state['values']['name']));
+
+  $form_state['redirect'] = 'admin/structure/forum';
+  return;
+}
+
+/**
+ * Form constructor for the forum settings page.
+ *
+ * @see forum_menu()
+ * @see system_settings_form()
+ * @ingroup forms
+ */
+function forum_admin_settings($form) {
+  $number = drupal_map_assoc(array(5, 10, 15, 20, 25, 30, 35, 40, 50, 60, 80, 100, 150, 200, 250, 300, 350, 400, 500));
+  $form['forum_hot_topic'] = array('#type' => 'select',
+    '#title' => t('Hot topic threshold'),
+    '#default_value' => variable_get('forum_hot_topic', 15),
+    '#options' => $number,
+    '#description' => t('The number of replies a topic must have to be considered "hot".'),
+  );
+  $number = drupal_map_assoc(array(10, 25, 50, 75, 100));
+  $form['forum_per_page'] = array('#type' => 'select',
+    '#title' => t('Topics per page'),
+    '#default_value' => variable_get('forum_per_page', 25),
+    '#options' => $number,
+    '#description' => t('Default number of forum topics displayed per page.'),
+  );
+  $forder = array(1 => t('Date - newest first'), 2 => t('Date - oldest first'), 3 => t('Posts - most active first'), 4 => t('Posts - least active first'));
+  $form['forum_order'] = array('#type' => 'radios',
+    '#title' => t('Default order'),
+    '#default_value' => variable_get('forum_order', 1),
+    '#options' => $forder,
+    '#description' => t('Default display order for topics.'),
+  );
+  return system_settings_form($form);
+}
+
+/**
+ * Form constructor for the forum overview form.
+ *
+ * Returns a form for controlling the hierarchy of existing forums and
+ * containers.
+ *
+ * @see forum_menu()
+ * @ingroup forms
+ */
+function forum_overview($form, &$form_state) {
+  module_load_include('inc', 'taxonomy', 'taxonomy.admin');
+
+  $vid = variable_get('forum_nav_vocabulary', '');
+  $vocabulary = taxonomy_vocabulary_load($vid);
+  $form = taxonomy_overview_terms($form, $form_state, $vocabulary);
+
+  foreach (element_children($form) as $key) {
+    if (isset($form[$key]['#term'])) {
+      $term = $form[$key]['#term'];
+      $form[$key]['view']['#href'] = 'forum/' . $term['tid'];
+      if (in_array($form[$key]['#term']['tid'], variable_get('forum_containers', array()))) {
+        $form[$key]['edit']['#title'] = t('edit container');
+        $form[$key]['edit']['#href'] = 'admin/structure/forum/edit/container/' . $term['tid'];
+      }
+      else {
+        $form[$key]['edit']['#title'] = t('edit forum');
+        $form[$key]['edit']['#href'] = 'admin/structure/forum/edit/forum/' . $term['tid'];
+      }
+    }
+  }
+
+  // Remove the alphabetical reset.
+  unset($form['actions']['reset_alphabetical']);
+
+  // The form needs to have submit and validate handlers set explicitly.
+  $form['#theme'] = 'taxonomy_overview_terms';
+  $form['#submit'] = array('taxonomy_overview_terms_submit'); // Use the existing taxonomy overview submit handler.
+  $form['#empty_text'] = t('No containers or forums available. <a href="@container">Add container</a> or <a href="@forum">Add forum</a>.', array('@container' => url('admin/structure/forum/add/container'), '@forum' => url('admin/structure/forum/add/forum')));
+  return $form;
+}
+
+/**
+ * Returns a select box for available parent terms.
+ *
+ * @param $tid
+ *   ID of the term that is being added or edited.
+ * @param $title
+ *   Title for the select box.
+ * @param $child_type
+ *   Whether the child is a forum or a container.
+ *
+ * @return
+ *   A select form element.
+ */
+function _forum_parent_select($tid, $title, $child_type) {
+
+  $parents = taxonomy_get_parents($tid);
+  if ($parents) {
+    $parent = array_shift($parents);
+    $parent = $parent->tid;
+  }
+  else {
+    $parent = 0;
+  }
+
+  $vid = variable_get('forum_nav_vocabulary', '');
+  $children = taxonomy_get_tree($vid, $tid);
+
+  // A term can't be the child of itself, nor of its children.
+  foreach ($children as $child) {
+    $exclude[] = $child->tid;
+  }
+  $exclude[] = $tid;
+
+  $tree = taxonomy_get_tree($vid);
+  $options[0] = '<' . t('root') . '>';
+  if ($tree) {
+    foreach ($tree as $term) {
+      if (!in_array($term->tid, $exclude)) {
+        $options[$term->tid] = str_repeat(' -- ', $term->depth) . $term->name;
+      }
+    }
+  }
+  if ($child_type == 'container') {
+    $description = t('Containers are usually placed at the top (root) level, but may also be placed inside another container or forum.');
+  }
+  elseif ($child_type == 'forum') {
+    $description = t('Forums may be placed at the top (root) level, or inside another container or forum.');
+  }
+
+  return array('#type' => 'select', '#title' => $title, '#default_value' => $parent, '#options' => $options, '#description' => $description, '#required' => TRUE);
+}