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<?php
/**
* @file
* Page callbacks for the taxonomy module.
*/
/**
* Menu callback; displays all nodes associated with a term.
*
* @param $term
* The taxonomy term.
* @return
* The page content.
*/
function taxonomy_term_page($term) {
// Build breadcrumb based on the hierarchy of the term.
$current = (object) array(
'tid' => $term->tid,
);
// @todo This overrides any other possible breadcrumb and is a pure hard-coded
// presumption. Make this behavior configurable per vocabulary or term.
$breadcrumb = array();
while ($parents = taxonomy_get_parents($current->tid)) {
$current = array_shift($parents);
$breadcrumb[] = l($current->name, 'taxonomy/term/' . $current->tid);
}
$breadcrumb[] = l(t('Home'), NULL);
$breadcrumb = array_reverse($breadcrumb);
drupal_set_breadcrumb($breadcrumb);
drupal_add_feed('taxonomy/term/' . $term->tid . '/feed', 'RSS - ' . $term->name);
$build = array();
// Add term heading if the term has a description
if (!empty($term->description)) {
$build['term_heading'] = array(
'#prefix' => '<div class="term-listing-heading">',
'#suffix' => '</div>',
'term' => taxonomy_term_view($term, 'full'),
);
}
if ($nids = taxonomy_select_nodes($term->tid, TRUE, variable_get('default_nodes_main', 10))) {
$nodes = node_load_multiple($nids);
$build += node_view_multiple($nodes);
$build['pager'] = array(
'#theme' => 'pager',
'#weight' => 5,
);
}
else {
$build['no_content'] = array(
'#prefix' => '<p>',
'#markup' => t('There is currently no content classified with this term.'),
'#suffix' => '</p>',
);
}
return $build;
}
/**
* Generate the content feed for a taxonomy term.
*
* @param $term
* The taxonomy term.
*/
function taxonomy_term_feed($term) {
$channel['link'] = url('taxonomy/term/' . $term->tid, array('absolute' => TRUE));
$channel['title'] = variable_get('site_name', 'Drupal') . ' - ' . $term->name;
// Only display the description if we have a single term, to avoid clutter and confusion.
// HTML will be removed from feed description.
$channel['description'] = check_markup($term->description, $term->format, '', TRUE);
$nids = taxonomy_select_nodes($term->tid, FALSE, variable_get('feed_default_items', 10));
node_feed($nids, $channel);
}
/**
* Helper function for autocompletion
*/
function taxonomy_autocomplete($field_name, $tags_typed = '') {
$field = field_info_field($field_name);
// The user enters a comma-separated list of tags. We only autocomplete the last tag.
$tags_typed = drupal_explode_tags($tags_typed);
$tag_last = drupal_strtolower(array_pop($tags_typed));
$matches = array();
if ($tag_last != '') {
// Part of the criteria for the query come from the field's own settings.
$vids = array();
$vocabularies = taxonomy_vocabulary_get_names();
foreach ($field['settings']['allowed_values'] as $tree) {
$vids[] = $vocabularies[$tree['vocabulary']]->vid;
}
$query = db_select('taxonomy_term_data', 't');
$query->addTag('translatable');
$query->addTag('term_access');
// Do not select already entered terms.
if (!empty($tags_typed)) {
$query->condition('t.name', $tags_typed, 'NOT IN');
}
// Select rows that match by term name.
$tags_return = $query
->fields('t', array('tid', 'name'))
->condition('t.vid', $vids)
->condition('t.name', '%' . db_like($tag_last) . '%', 'LIKE')
->range(0, 10)
->execute()
->fetchAllKeyed();
$prefix = count($tags_typed) ? implode(', ', $tags_typed) . ', ' : '';
$term_matches = array();
foreach ($tags_return as $tid => $name) {
$n = $name;
// Term names containing commas or quotes must be wrapped in quotes.
if (strpos($name, ',') !== FALSE || strpos($name, '"') !== FALSE) {
$n = '"' . str_replace('"', '""', $name) . '"';
}
else {
$term_matches[$prefix . $n] = check_plain($name);
}
}
}
drupal_json_output($term_matches);
}
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