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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) {
$options = array();
$fields = field_info_fields();
foreach ($fields as $field_name => $field) {
if ($field['type'] == 'taxonomy_term_reference') {
$options[$field_name] = t('Field %field-name, selecting terms from vocabulary %vocabulary.', array(
'%field-name' => $field_name,
'%vocabulary' => $field['settings']['allowed_values'][0]['vocabulary'],
));
}
}
$form['placeholder']['taxonomy_fields'] = array(
'#type' => 'checkboxes',
'#title' => t('Taxonomy fields'),
'#description' => t('Select which taxonomy term reference fields to use; each unique combination of terms from all of these fields will have a subqueue.'),
'#options' => $options,
);
$form['placeholder']['use_parents'] = array(
'#type' => 'checkbox',
'#title' => t('Assume parent term for hierarchical vocabs'),
'#description' => t("Instead of using the node's terms for nodequeue assignment use the top-most parents of a term. This has no effect if there in non-hierarchical vocabularies."),
'#default_value' => isset($queue->use_parents) ? $queue->use_parents : 0,
);
$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->new) {
$form['placeholder']['taxonomy_fields']['#disabled'] = TRUE;
$form['placeholder']['taxonomy_fields']['#default_value'] = explode('-', $queue->reference);
}
}
function smartqueue_taxonomy_nodequeue_form_validate($queue, &$form_state, &$form) {
if ($queue->new) {
$field_names = array_keys(array_filter($form_state['values']['taxonomy_fields']));
if (empty($field_names)) {
form_error($form['placeholder']['taxonomy_fields'], t('You must select at least one field.'));
}
form_set_value($form['reference'], implode('-', $field_names), $form_state);
}
}
function smartqueue_taxonomy_nodequeue_form_submit_finish($queue, $form_state) {
if (!$queue->new) {
db_update('smartqueue')
->fields(array(
'use_parents' => $form_state['values']['use_parents'],
))
->condition('name', $queue->name)
->execute();
}
else {
db_insert('smartqueue')
->fields(array(
'name' => $queue->name,
'use_parents' => $form_state['values']['use_parents'],
))
->execute();
}
}
function smartqueue_taxonomy_nodequeue_subqueues(&$queue, $node) {
$field_names = array();
foreach (explode('-', $queue->reference) as $field_name) {
if ($field_values = field_get_items('node', $node, $field_name)) {
$field_names[$field_name] = array();
foreach ($field_values as $field_value) {
$field_names[$field_name][] = $field_value['tid'];
}
}
}
if (!empty($field_names) && $queue->use_parents) {
foreach ($field_names as $field_name => &$tids) {
$tids = smartqueue_taxonomy_get_parents($tids);
}
}
$empty = TRUE;
foreach ($field_names as $field_name => $tids) {
if (!empty($tids)) {
$empty = FALSE;
}
if (!count($field_names[$field_name])) {
$field_names[$field_name][] = 0;
}
}
if ($empty) {
return;
}
$references = smartqueue_build_string(array_filter($field_names));
$exists = array();
$subqueues = nodequeue_load_subqueues_by_reference(array(
$queue->name => $references,
));
foreach ($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 $references;
}
function smartqueue_nodequeue_alter(&$data, $type) {
switch ($type) {
case 'load_queues':
$queues = array_keys($data);
if (count($queues)) {
$result = db_query("SELECT name, use_parents FROM {smartqueue} WHERE name IN (:queues)", array(
':queues' => $queues,
));
foreach ($result as $queue) {
$data[$queue->name]->use_parents = $queue->use_parents;
}
}
break;
}
}
function smartqueue_nodequeue_delete($name) {
db_delete('smartqueue')
->condition('name', $name)
->execute();
}
function smartqueue_build_string($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) {
$tids = explode('-', $reference);
foreach ($tids as $tid) {
if ($tid) {
$titles[$tid] = taxonomy_term_load($tid)->name;
}
}
return implode('-', $titles);
}
function smartqueue_taxonomy_term_update($term) {
$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.name = sq.name\n WHERE nq.owner = 'smartqueue_taxonomy'\n AND (sq.reference = ?\n OR sq.reference LIKE ?\n OR sq.reference LIKE ?\n OR sq.reference LIKE ?)", array(
$term->tid,
'%-' . $term->tid,
$term->tid . '-%',
'%-' . $term->tid . '-%',
))
->fetchAll();
foreach ($result as $row) {
$title = smartqueue_taxonomy_nodequeue_subqueue_title($row, $row->sqref);
nodequeue_subqueue_update_title($row->sqid, $title);
}
}
function smartqueue_taxonomy_term_delete($term) {
$result = db_query("SELECT sq.sqid FROM {nodequeue_subqueue} sq\n INNER JOIN {nodequeue_queue} nq ON sq.name = nq.name\n WHERE nq.owner = 'smartqueue_taxonomy'\n AND (sq.reference = ?\n OR sq.reference LIKE ?\n OR sq.reference LIKE ?\n OR sq.reference LIKE ?)", array(
$term->tid,
'%-' . $term->tid,
$term->tid . '-%',
'%-' . $term->tid . '-%',
))
->fetchAll();
foreach ($result as $row) {
nodequeue_remove_subqueue($row->sqid);
}
}
function smartqueue_taxonomy_get_parents($tids) {
if ($tids) {
$top_level_tids = array();
foreach ($tids as $tid) {
$parents = taxonomy_get_parents_all($tid);
$parent = array_pop($parents);
$top_level_tids[] = $parent->tid;
}
return array_unique($top_level_tids);
}
else {
return array();
}
}