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<?php
function smartqueue_nodequeue_info() {
return array(
'smartqueue_taxonomy' => array(
'title' => t('Taxonomy queue'),
'description' => t('Each particular grouping of taxonomy terms from the selected vocabularies have their own unique subqueue. You can place nodes into any of these subqueues based on which terms that node has been tagged with. Using this with large or too many taxonomies may degrade performance.'),
),
);
}
function smartqueue_taxonomy_nodequeue_form($queue, &$form) {
foreach (taxonomy_get_vocabularies() as $vid => $vocabulary) {
$options[$vid] = check_plain($vocabulary->name);
}
$form['placeholder']['vocabularies'] = array(
'#type' => 'checkboxes',
'#title' => t('Vocabularies'),
'#description' => t('Select which vocabularies to use; each unique combination of terms from all of these vocabularies will have a subqueue.'),
'#options' => $options,
);
$form['subqueue_title'] = array(
'#type' => 'textfield',
'#title' => t('Subqueue title'),
'#default_value' => $queue->subqueue_title,
'#size' => 50,
'#maxlength' => 64,
'#description' => t('What to display for the subqueue title; use %subqueue to embed the actual subqueue title. This is used to distinguish multiple nodequeues with subqueues from each other, as internal subqueue title is filled automatically.'),
);
if ($queue->qid) {
$form['placeholder']['vocabularies']['#disabled'] = TRUE;
$form['placeholder']['vocabularies']['#default_value'] = explode('-', $queue->reference);
}
}
function smartqueue_taxonomy_nodequeue_form_validate($queue, $form_values, &$form) {
if (!isset($queue->qid)) {
$vids = array_keys(array_filter($form_values['vocabularies']));
if (empty($vids)) {
form_error($form['placeholder']['vocabularies'], t('You must select at least one vocabulary.'));
}
form_set_value($form['reference'], implode('-', $vids));
}
}
function smartqueue_taxonomy_nodequeue_subqueues(&$queue, $node) {
foreach (explode('-', $queue->reference) as $vid) {
$vids[$vid] = array();
}
foreach ($node->taxonomy as $key => $value) {
if (!is_object($value)) {
foreach ((array) $value as $tid) {
if (isset($vids[$key])) {
$vids[$key][] = $tid;
}
}
}
else {
if (isset($vids[$value->vid])) {
$vids[$value->vid][] = $value->tid;
}
}
}
$empty = TRUE;
foreach ($vids as $vid => $tids) {
if (!empty($tids)) {
$empty = FALSE;
}
$vids[$vid][] = 0;
}
if ($empty) {
return;
}
$references = smartqueue_build_string(array_filter($vids));
array_pop($references);
$exists = array();
$subqueues = nodequeue_load_subqueues_by_reference(array(
$queue->qid => $references,
));
foreach ($subqueues as $subqueue) {
$exists[$subqueue->reference] = TRUE;
}
foreach ($references as $reference) {
if (empty($exists[$reference])) {
nodequeue_add_subqueue($queue, smartqueue_taxonomy_nodequeue_subqueue_title($queue, $reference), $reference);
}
}
return $references;
}
function smartqueue_build_string($arrays) {
$array = array_shift($arrays);
$term = '';
if (empty($arrays)) {
return $array;
}
$substrings = smartqueue_build_string($arrays);
$strings = array();
foreach ($array as $term) {
foreach ($substrings as $string) {
$strings[] = "{$term}-{$string}";
}
}
return $strings;
}
function smartqueue_taxonomy_nodequeue_subqueue_title($queue, $reference) {
$vids = explode('-', $queue->reference);
$tids = explode('-', $reference);
$titles = array();
foreach ($vids as $vid) {
$tid = array_shift($tids);
if ($tid) {
$terms = smartqueue_taxonomy_get_terms($vid);
$titles[$tid] = $terms[$tid];
}
}
return implode('-', $titles);
}
function smartqueue_taxonomy_get_terms($vid) {
static $cache = array();
if (!isset($cache[$vid])) {
$cache[$vid] = array();
$result = db_query("SELECT tid, name FROM {term_data} WHERE vid = %d", $vid);
while ($term = db_fetch_object($result)) {
$cache[$vid][$term->tid] = $term->name;
}
}
return $cache[$vid];
}
function smartqueue_taxonomy($op, $type, $array = NULL) {
switch ($type) {
case 'term':
switch ($op) {
case 'update':
$tid = $array['tid'];
$result = db_query("SELECT nq.reference AS reference, sq.reference AS sqref, sq.sqid\n FROM {nodequeue_queue} nq\n INNER JOIN {nodequeue_subqueue} sq ON nq.qid = sq.qid\n WHERE nq.owner = 'smartqueue_taxonomy'\n AND (sq.reference = '%d'\n OR sq.reference LIKE '%%-%d'\n OR sq.reference LIKE '%d-%%'\n OR sq.reference LIKE '%%-%d-%%')", $tid, $tid, $tid, $tid);
while ($row = db_fetch_object($result)) {
$title = smartqueue_taxonomy_nodequeue_subqueue_title($row, $row->sqref);
nodequeue_subqueue_update_title($row->sqid, $title);
}
break;
case 'delete':
$tid = $array['tid'];
$result = db_query("SELECT sq.sqid FROM {nodequeue_subqueue} sq\n INNER JOIN {nodequeue_queue} nq ON sq.qid = nq.qid\n WHERE nq.owner = 'smartqueue_taxonomy'\n AND (sq.reference = '%d'\n OR sq.reference LIKE '%%-%d'\n OR sq.reference LIKE '%d-%%'\n OR sq.reference LIKE '%%-%d-%%')", $tid, $tid, $tid, $tid);
while ($row = db_fetch_object($result)) {
nodequeue_remove_subqueue($row->sqid);
}
break;
}
case 'vocabulary':
break;
}
}