drupal/core/modules/taxonomy/taxonomy.api.php

257 lines
7.0 KiB
PHP

<?php
/**
* @file
* Hooks provided by the Taxonomy module.
*/
/**
* @addtogroup hooks
* @{
*/
/**
* Act on taxonomy vocabularies when loaded.
*
* Modules implementing this hook can act on the vocabulary objects before they
* are returned by taxonomy_vocabulary_load_multiple().
*
* @param $vocabulary
* An array of taxonomy vocabulary objects.
*/
function hook_taxonomy_vocabulary_load($vocabularies) {
foreach ($vocabularies as $vocabulary) {
$vocabulary->synonyms = variable_get('taxonomy_' . $vocabulary->vid . '_synonyms', FALSE);
}
}
/**
* Act on taxonomy vocabularies before they are saved.
*
* Modules implementing this hook can act on the vocabulary object before it is
* inserted or updated.
*
* @param $vocabulary
* A taxonomy vocabulary object.
*/
function hook_taxonomy_vocabulary_presave($vocabulary) {
$vocabulary->foo = 'bar';
}
/**
* Act on taxonomy vocabularies when inserted.
*
* Modules implementing this hook can act on the vocabulary object when saved
* to the database.
*
* @param $vocabulary
* A taxonomy vocabulary object.
*/
function hook_taxonomy_vocabulary_insert($vocabulary) {
if ($vocabulary->synonyms) {
variable_set('taxonomy_' . $vocabulary->vid . '_synonyms', TRUE);
}
}
/**
* Act on taxonomy vocabularies when updated.
*
* Modules implementing this hook can act on the vocabulary object when updated.
*
* @param $vocabulary
* A taxonomy vocabulary object.
*/
function hook_taxonomy_vocabulary_update($vocabulary) {
$status = $vocabulary->synonyms ? TRUE : FALSE;
if ($vocabulary->synonyms) {
variable_set('taxonomy_' . $vocabulary->vid . '_synonyms', $status);
}
}
/**
* Act before taxonomy vocabulary deletion.
*
* This hook is invoked from taxonomy_vocabulary_delete() before
* field_attach_delete_bundle() is called and before the vocabulary is actually
* removed from the database.
*
* @param $vocabulary
* The taxonomy vocabulary object for the vocabulary that is about to be
* deleted.
*
* @see hook_taxonomy_vocabulary_delete()
* @see taxonomy_vocabulary_delete()
*/
function hook_taxonomy_vocabulary_predelete($vocabulary) {
if (variable_get('taxonomy_' . $vocabulary->vid . '_synonyms', FALSE)) {
variable_del('taxonomy_' . $vocabulary->vid . '_synonyms');
}
}
/**
* Respond to taxonomy vocabulary deletion.
*
* This hook is invoked from taxonomy_vocabulary_delete() after
* field_attach_delete_bundle() has been called and after the vocabulary has
* been removed from the database.
*
* @param $vocabulary
* The taxonomy vocabulary object for the vocabulary that has been deleted.
*
* @see hook_taxonomy_vocabulary_predelete()
* @see taxonomy_vocabulary_delete()
*/
function hook_taxonomy_vocabulary_delete($vocabulary) {
if (variable_get('taxonomy_' . $vocabulary->vid . '_synonyms', FALSE)) {
variable_del('taxonomy_' . $vocabulary->vid . '_synonyms');
}
}
/**
* Act on taxonomy terms when loaded.
*
* Modules implementing this hook can act on the term objects returned by
* taxonomy_term_load_multiple().
*
* For performance reasons, information to be added to term objects should be
* loaded in a single query for all terms where possible.
*
* Since terms are stored and retrieved from cache during a page request, avoid
* altering properties provided by the {taxonomy_term_data} table, since this
* may affect the way results are loaded from cache in subsequent calls.
*
* @param $terms
* An array of term objects, indexed by tid.
*/
function hook_taxonomy_term_load($terms) {
$result = db_query('SELECT tid, foo FROM {mytable} WHERE tid IN (:tids)', array(':tids' => array_keys($terms)));
foreach ($result as $record) {
$terms[$record->tid]->foo = $record->foo;
}
}
/**
* Act on taxonomy terms before they are saved.
*
* Modules implementing this hook can act on the term object before it is
* inserted or updated.
*
* @param $term
* A term object.
*/
function hook_taxonomy_term_presave($term) {
$term->foo = 'bar';
}
/**
* Act on taxonomy terms when inserted.
*
* Modules implementing this hook can act on the term object when saved to
* the database.
*
* @param $term
* A taxonomy term object.
*/
function hook_taxonomy_term_insert($term) {
if (!empty($term->synonyms)) {
foreach (explode ("\n", str_replace("\r", '', $term->synonyms)) as $synonym) {
if ($synonym) {
db_insert('taxonomy_term_synonym')
->fields(array(
'tid' => $term->tid,
'name' => rtrim($synonym),
))
->execute();
}
}
}
}
/**
* Act on taxonomy terms when updated.
*
* Modules implementing this hook can act on the term object when updated.
*
* @param $term
* A taxonomy term object.
*/
function hook_taxonomy_term_update($term) {
hook_taxonomy_term_delete($term);
if (!empty($term->synonyms)) {
foreach (explode ("\n", str_replace("\r", '', $term->synonyms)) as $synonym) {
if ($synonym) {
db_insert('taxonomy_term_synonym')
->fields(array(
'tid' => $term->tid,
'name' => rtrim($synonym),
))
->execute();
}
}
}
}
/**
* Act before taxonomy term deletion.
*
* This hook is invoked from taxonomy_term_delete() before
* field_attach_delete() is called and before the term is actually removed from
* the database.
*
* @param $term
* The taxonomy term object for the term that is about to be deleted.
*
* @see taxonomy_term_delete()
*/
function hook_taxonomy_term_predelete($term) {
db_delete('term_synoynm')->condition('tid', $term->tid)->execute();
}
/**
* Respond to taxonomy term deletion.
*
* This hook is invoked from taxonomy_term_delete() after field_attach_delete()
* has been called and after the term has been removed from the database.
*
* @param $term
* The taxonomy term object for the term that has been deleted.
*
* @see taxonomy_term_delete()
*/
function hook_taxonomy_term_delete($term) {
db_delete('term_synoynm')->condition('tid', $term->tid)->execute();
}
/**
* Alter the results of taxonomy_term_view().
*
* This hook is called after the content has been assembled in a structured
* array and may be used for doing processing which requires that the complete
* taxonomy term content structure has been built.
*
* If the module wishes to act on the rendered HTML of the term rather than the
* structured content array, it may use this hook to add a #post_render
* callback. Alternatively, it could also implement
* hook_preprocess_taxonomy_term(). See drupal_render() and theme()
* documentation respectively for details.
*
* @param $build
* A renderable array representing the node content.
*
* @see hook_entity_view_alter()
*/
function hook_taxonomy_term_view_alter(&$build) {
if ($build['#view_mode'] == 'full' && isset($build['an_additional_field'])) {
// Change its weight.
$build['an_additional_field']['#weight'] = -10;
}
// Add a #post_render callback to act on the rendered HTML of the term.
$build['#post_render'][] = 'my_module_node_post_render';
}
/**
* @} End of "addtogroup hooks".
*/