Constructor.
Description
Sets up the term query, based on the query vars passed.
Parameters
$querystring|arrayoptional- Array or query string of term query parameters.
taxonomystring|string[]Taxonomy name, or array of taxonomy names, to which results should be limited.object_idsint|int[]Object ID, or array of object IDs. Results will be limited to terms associated with these objects.orderbystringField(s) to order terms by. Accepts:
- Term fields (
'name','slug','term_group','term_id','id','description','parent','term_order'). Unless$object_idsis not empty,'term_order'is treated the same as'term_id'. 'count'to use the number of objects associated with the term.'include'to match the'order'of the$includeparam.'slug__in'to match the'order'of the$slugparam.'meta_value''meta_value_num'.- The value of
$meta_key. - The array keys of
$meta_query. 'none'to omit the ORDER BY clause.
'name'.- Term fields (
orderstringWhether to order terms in ascending or descending order.
Accepts'ASC'(ascending) or'DESC'(descending).
Default'ASC'.hide_emptybool|intWhether to hide terms not assigned to any posts. Accepts1|trueor0|false. Default1|true.includeint[]|stringArray or comma/space-separated string of term IDs to include.
Default empty array.excludeint[]|stringArray or comma/space-separated string of term IDs to exclude.
If$includeis non-empty,$excludeis ignored.
Default empty array.exclude_treeint[]|stringArray or comma/space-separated string of term IDs to exclude along with all of their descendant terms. If$includeis non-empty,$exclude_treeis ignored. Default empty array.numberint|stringMaximum number of terms to return. Accepts(all) or any positive number. Default''|0(all). Note that''|0$numbermay not return accurate results when coupled with$object_ids.
See #41796 for details.offsetintThe number by which to offset the terms query.fieldsstringTerm fields to query for. Accepts:
'all'Returns an array of complete term objects (WP_Term[]).'all_with_object_id'Returns an array of term objects with the'object_id'param (WP_Term[]). Works only when the$object_idsparameter is populated.'ids'Returns an array of term IDs (int[]).'tt_ids'Returns an array of term taxonomy IDs (int[]).'names'Returns an array of term names (string[]).'slugs'Returns an array of term slugs (string[]).'count'Returns the number of matching terms (int).'id=>parent'Returns an associative array of parent term IDs, keyed by term ID (int[]).'id=>name'Returns an associative array of term names, keyed by term ID (string[]).'id=>slug'Returns an associative array of term slugs, keyed by term ID (string[]).
'all'.namestring|string[]Name or array of names to return term(s) for.
slugstring|string[]Slug or array of slugs to return term(s) for.
term_taxonomy_idint|int[]Term taxonomy ID, or array of term taxonomy IDs, to match when querying terms.hierarchicalboolWhether to include terms that have non-empty descendants (even if$hide_emptyis set to true). Default true.searchstringSearch criteria to match terms. Will be SQL-formatted with wildcards before and after.name__likestringRetrieve terms with criteria by which a term is LIKE$name__like.description__likestringRetrieve terms where the description is LIKE$description__like.pad_countsboolWhether to pad the quantity of a term’s children in the quantity of each term’s "count" object variable. Default false.getstringWhether to return terms regardless of ancestry or whether the terms are empty. Accepts'all'or''(disabled). Default''.child_ofintTerm ID to retrieve child terms of. If multiple taxonomies are passed,$child_ofis ignored. Default 0.parentintParent term ID to retrieve direct-child terms of.
childlessboolTrue to limit results to terms that have no children.
This parameter has no effect on non-hierarchical taxonomies.
Default false.cache_domainstringUnique cache key to be produced when this query is stored in an object cache. Default'core'.cache_resultsboolWhether to cache term information. Default true.update_term_meta_cacheboolWhether to prime meta caches for matched terms. Default true.meta_keystring|string[]Meta key or keys to filter by.meta_valuestring|string[]Meta value or values to filter by.meta_comparestringMySQL operator used for comparing the meta value.
See WP_Meta_Query::__construct() for accepted values and default value.meta_compare_keystringMySQL operator used for comparing the meta key.
See WP_Meta_Query::__construct() for accepted values and default value.meta_typestringMySQL data type that the meta_value column will be CAST to for comparisons.
See WP_Meta_Query::__construct() for accepted values and default value.meta_type_keystringMySQL data type that the meta_key column will be CAST to for comparisons.
See WP_Meta_Query::__construct() for accepted values and default value.meta_queryarrayAn associative array of WP_Meta_Query arguments.
See WP_Meta_Query::__construct() for accepted values.
Default:
''
Source
public function __construct( $query = '' ) { $this->query_var_defaults = array( 'taxonomy' => null, 'object_ids' => null, 'orderby' => 'name', 'order' => 'ASC', 'hide_empty' => true, 'include' => array(), 'exclude' => array(), 'exclude_tree' => array(), 'number' => '', 'offset' => '', 'fields' => 'all', 'name' => '', 'slug' => '', 'term_taxonomy_id' => '', 'hierarchical' => true, 'search' => '', 'name__like' => '', 'description__like' => '', 'pad_counts' => false, 'get' => '', 'child_of' => 0, 'parent' => '', 'childless' => false, 'cache_domain' => 'core', 'cache_results' => true, 'update_term_meta_cache' => true, 'meta_query' => '', 'meta_key' => '', 'meta_value' => '', 'meta_type' => '', 'meta_compare' => '', ); if ( ! empty( $query ) ) { $this->query( $query ); } } Changelog
| Version | Description |
|---|---|
| 6.4.0 | Introduced the 'cache_results' parameter. |
| 5.3.0 | Introduced the 'meta_type_key' parameter. |
| 5.1.0 | Introduced the 'meta_compare_key' parameter. |
| 4.9.0 | Added 'slug__in' support for 'orderby'. |
| 4.7.0 | Introduced 'object_ids' parameter. |
| 4.6.0 | Introduced. |
@jmarceli ,
If we wanted to limit the query to specific term ids we would use the ‘include’ or ‘exclude’ parameters instead. ‘object_ids’ are useful for cases such as when we want to return terms associated with a set of posts. In such a case we might want to do the following in a taxonomy archive:
And then call this:
Note the inconsistency between 0 here and -1 on many other methods to return all the results. Also passing e negative number automatically convert to positive, so -1 means 1, further confusion.
'object_ids'query parameter should be replaced with an object name, example for get_terms:includeparameter accepts term IDs.'object_ids'means posts (objects) associated to terms, results will be limited to terms associated with these posts.'term_ids'wouldn’t be a replacement for that.$object_idsis empty,term_orderis treated the same asterm_id.