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