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<?php
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/**
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* @file
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* provide a menu for navigating a taxonomy inside panels
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* set breadcrumbs (done inside)
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* set title (done inside)
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* validate arg? can't be done inside
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* hook_taxonomy (to direct links
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*/
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/**
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* Implementation of hook_term_path
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*
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* activated by setting module=panels_taxonomy in vocabulary table
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*/
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function panels_taxonomy_term_path($term) {
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static $handlers;
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if (!is_array($handlers)) {
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// TODO: store this unserialized in a seperate table to make this quicker?
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$handlers = array();
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$result = db_query('SELECT p.path, b.configuration FROM {panels_pane} b INNER JOIN {panels_page} p ON b.did = p.did WHERE b.type="taxonomy"');
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while ($pane = db_fetch_object($result)) {
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$pane->configuration = unserialize($pane->configuration);
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if ($pane->configuration['primary']) {
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$handlers[$pane->configuration['vid']] = array('path' => $pane->path, 'position' =>$pane->configuration['arg position']);
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}
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}
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}
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$handler = $handlers[$term->vid];
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if (isset($handler)) {
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return $handler['path'] . '/' . str_repeat('/', $handler['position'] - 1) . $term->tid;
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}
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}
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/**
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* Output function for the 'taxonomy' content type.
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*/
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function panels_taxonomy_content($conf, $panel_args) {
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$args = explode('/', $_GET['q']);
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$argidx = count($args) - count($panel_args) + ($conf['arg position'] - 1); //absolute argument position
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$args = array_pad($args, $argidx+1, '');
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// Term display
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if ($args[$argidx]) {
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$term = taxonomy_get_term($args[$argidx]);
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if ($conf['display']['page title']) {
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panels_taxonomy_set_title($term->name);
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$block->subject = filter_xss_admin($conf['title']);
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}
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else {
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$block->subject = filter_xss_admin($conf['title']?$conf['title']: $term->name);
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}
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if ($term->vid != $conf['vid']) {
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$block->subject = 'Error!';
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$block->content = "Invalid term.";
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return $block;
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}
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if ($conf['display']['description']) {
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$block->content .= '<div class="description">' . $term->description . '</div>';
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}
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if ($conf['display']['top level terms']) {
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$block->content .= panels_taxonomy_child_terms_list(0, $conf['vid'], $args, $argidx);
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}
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if ($conf['display']['children']) {
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$block->content .= panels_taxonomy_child_terms_list($term->tid, $conf['vid'], $args, $argidx);
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}
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if ($conf['display']['breadcrumbs']) {
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// Build breadcrumb based on first hierarchy of first term
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// Borrowed from taxonomy_term_page
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$current = $term;
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while ($current = array_shift(taxonomy_get_parents($current->tid))) {
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$args[$argidx] = $current->tid;
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$breadcrumbs[] = l($current->name, implode('/', $args));
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}
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if ($conf['display']['vocabulary']) {
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$vocabulary = taxonomy_get_vocabulary($conf['vid']);
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$breadcrumbs[] = l($vocabulary->name, implode('/', array_slice($args, 0, $argidx)));
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}
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if (is_array($breadcrumbs)) {
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$breadcrumbs = array_reverse($breadcrumbs);
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drupal_set_breadcrumb(array_merge(drupal_get_breadcrumb(), $breadcrumbs));
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}
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}
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} elseif ($conf['display']['vocabulary']) {
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// Vocabulary display
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$vocabulary = taxonomy_get_vocabulary($conf['vid']);
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$block->subject = filter_xss_admin($conf['title']?$conf['title']: $vocabulary->name);
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if ($conf['display']['description']) {
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$block->content .= '<div class="description">' . ($vocabulary->description) . '</div>';
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}
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if ($conf['display']['top level terms'] OR $conf['display']['children']) {
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$block->content .= panels_taxonomy_child_terms_list(0, $conf['vid'], $args, $argidx);
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}
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}
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return $block;
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}
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function panels_taxonomy_set_title($set_title=NULL) {
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static $title;
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if (is_string($set_title)) {
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$title = $set_title;
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}
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if (is_string($title) AND is_null($set_title)) {
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drupal_set_title($title);
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}
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}
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function panels_taxonomy_footer() {
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panels_taxonomy_set_title();
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}
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function panels_taxonomy_child_terms_list($tid, $vid, $args, $argidx){
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$links = array();
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foreach (taxonomy_get_children($tid, $vid) as $child_tid => $child_term) {
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$args[$argidx] = $child_tid;
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$links[] = l($child_term->name, implode('/', $args));
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}
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return theme('item_list', $links);
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}
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/**
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* Callback function to supply a list of content types.
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*/
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function panels_taxonomy_panels_content_types() {
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$items['taxonomy'] = array(
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'title' => t('Taxonomy browser'),
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'render callback' => 'panels_taxonomy_content',
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'content_types' => 'panels_taxonomy_content_types',
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'add callback' => 'panels_taxonomy_add',
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'edit callback' => 'panels_taxonomy_edit',
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'title callback' => 'panels_taxonomy_title',
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);
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return $items;
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}
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/**
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* Returns the form for a new taxonomy browser.
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*/
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function panels_taxonomy_add($id) {
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$conf = array('vid' => $id, 'arg position' => 1, 'validate arg' => 1);
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return panels_taxonomy_edit($conf);
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}
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function panels_taxonomy_edit($conf = array()) {
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$form['#taxonomy'] = TRUE;
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$form['help'] = array('#weight' => -1, '#value'=>'<div>Provides navigation for a vocabulary. In order to actually display the nodes associated with the current term, you should add one or more views to your panel with a "vocabulary" argument. <br/><em>Note: </em> <strong>The views should be set to "embedded".</strong></div>');
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$form['vid'] = array(
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'#type' => 'hidden',
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'#default_value' => $conf['vid'],
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);
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$form['title'] = array(
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'#type' => 'textfield',
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'#default_value' => $conf['title'],
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'#title' => t('Title'),
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'#description' => t('Title for navigation block. Leave blank to use term name. Enter a single space to <em>really</em> leave blank.'),
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'#size' => 20,
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);
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$form['display'] = array(
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'#type' => 'checkboxes',
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'#title' => t('Display'),
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'#options' => array(
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'page title' => t('Term title as page title'),
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'description' => t('Term description'),
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'vocabulary' => t('Display vocabulary if no term is specified'),
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'breadcrumbs' => t('Ancestor terms as breadcrumbs'),
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'children' => t('Child terms'),
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'top level terms' => t('Top-level terms'),
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),
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'#default_value' => $conf['display'],
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);
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$form['arg position'] = array(
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'#type' => 'textfield',
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'#default_value' => $conf['arg position'],
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'#title' => t('Argument position'),
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'#description' => t('Which argument contains the taxonomy term ID? For example, if the first argument to your "colors" panel is the term ID, so that a typical URL is colors/3, the argument position should be 1.'),
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'#required' => TRUE,
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'#size' => 2,
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);
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$form['primary'] = array(
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'#type' => 'checkbox',
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'#default_value' => $conf['primary'],
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'#title' => t('Override term links'),
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'#description' => t('Make this panel the primary handler for terms in this vocabulary, so that term links will point here etc.'),
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);
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return $form;
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}
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function panels_taxonomy_validate($form, $form_values) {
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if ((!is_numeric($form_values['arg position'])) OR $form_values['arg position'] < 1) {
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return form_set_error('arg position', 'Argument position must be a positive integer.');
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}
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if ($form_values['primary'] AND ($form_values['arg position'] != 1)) {
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return form_set_error('primary', t('You can only user the "Override term links" option if the argument position is 1.'));
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}
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}
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function panels_taxonomy_form_alter($form_id, &$form) {
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// ATTENTION YOU: is this up to date with the current panels?
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if ($form_id == 'panels_add_content_config_form' OR $form_id == 'panels_edit_pane_config_form') {
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if ($form['configuration']['#taxonomy']) {
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$form['#submit']['panels_taxonomy_submit'] = array();
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}
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}
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}
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function panels_taxonomy_submit($form_id, $form_values) {
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//set vocabulary link handler
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$module = ($form_values['configuration']['primary'] ? 'panels_taxonomy': 'taxonomy');
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// Make sure no other pane is using this vocab
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$result = db_query('SELECT configuration FROM {panels_pane} WHERE type = "taxonomy" AND pid <> %d', $form_values['pid']);
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while ($pane = db_fetch_array($result)) {
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$conf = unserialize($pane['configuration']);
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if ($conf['primary'] AND $conf['vid'] == $form_values['configuration']['vid']) {
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$module = 'taxonomy';
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break;
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}
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}
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db_query('UPDATE {vocabulary} SET module="%s" WHERE vid=%d', $module, $form_values['configuration']['vid']);
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}
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/**
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* Return all content types available.
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*/
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function panels_taxonomy_content_types() {
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$types = array();
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foreach (taxonomy_get_vocabularies() as $vid => $vocabulary) {
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$types[$vid] = array(
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'title' => $vocabulary->name,
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'icon' => 'icon_taxonomy_browser.png',
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'description' => $vocabulary->description,
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'category' => array(t('Taxonomy browsers'), -1),
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'path' => drupal_get_path('module', 'panels_taxonomy'),
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);
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}
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return $types;
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}
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/**
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* Returns the administrative title for a type.
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*/
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function panels_taxonomy_title($conf) {
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$vocabulary = taxonomy_get_vocabulary($form['vid']);
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return 'Taxonomy browser: '.$vocabulary->name;
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}
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