mirror of
https://github.com/WordPress/WordPress.git
synced 2024-12-26 19:18:57 +01:00
01b9ca2292
Prior to the introduction of `WP_Term_Query`, the 'orderby' clause passed to the 'terms_clauses' filter was prefixed by `ORDER BY`. After `WP_Term_Query`, this was not the case; `ORDER BY` was added after the filter. As such, plugins filtering 'terms_clauses' and returning an 'orderby' clause beginning with `ORDER BY` resulted in invalid syntax when `WP_Term_Query` prepended a second `ORDER BY` keyword to the clause. This changeset rearranges the way the 'orderby' clause is built so that it will be passed to 'terms_clauses' in the previous format. Fixes #37378. Built from https://develop.svn.wordpress.org/trunk@38099 git-svn-id: http://core.svn.wordpress.org/trunk@38040 1a063a9b-81f0-0310-95a4-ce76da25c4cd
909 lines
30 KiB
PHP
909 lines
30 KiB
PHP
<?php
|
|
|
|
/**
|
|
* Taxonomy API: WP_Term_Query class.
|
|
*
|
|
* @package WordPress
|
|
* @subpackage Taxonomy
|
|
* @since 4.6.0
|
|
*/
|
|
|
|
/**
|
|
* Class used for querying terms.
|
|
*
|
|
* @since 4.6.0
|
|
*
|
|
* @see WP_Term_Query::__construct() for accepted arguments.
|
|
*/
|
|
class WP_Term_Query {
|
|
|
|
/**
|
|
* SQL string used to perform database query.
|
|
*
|
|
* @since 4.6.0
|
|
* @access public
|
|
* @var string
|
|
*/
|
|
public $request;
|
|
|
|
/**
|
|
* Metadata query container.
|
|
*
|
|
* @since 4.6.0
|
|
* @access public
|
|
* @var object WP_Meta_Query
|
|
*/
|
|
public $meta_query = false;
|
|
|
|
/**
|
|
* Metadata query clauses.
|
|
*
|
|
* @since 4.6.0
|
|
* @access protected
|
|
* @var array
|
|
*/
|
|
protected $meta_query_clauses;
|
|
|
|
/**
|
|
* SQL query clauses.
|
|
*
|
|
* @since 4.6.0
|
|
* @access protected
|
|
* @var array
|
|
*/
|
|
protected $sql_clauses = array(
|
|
'select' => '',
|
|
'from' => '',
|
|
'where' => array(),
|
|
'orderby' => '',
|
|
'limits' => '',
|
|
);
|
|
|
|
/**
|
|
* Query vars set by the user.
|
|
*
|
|
* @since 4.6.0
|
|
* @access public
|
|
* @var array
|
|
*/
|
|
public $query_vars;
|
|
|
|
/**
|
|
* Default values for query vars.
|
|
*
|
|
* @since 4.6.0
|
|
* @access public
|
|
* @var array
|
|
*/
|
|
public $query_var_defaults;
|
|
|
|
/**
|
|
* List of terms located by the query.
|
|
*
|
|
* @since 4.6.0
|
|
* @access public
|
|
* @var array
|
|
*/
|
|
public $terms;
|
|
|
|
/**
|
|
* Constructor.
|
|
*
|
|
* Sets up the term query, based on the query vars passed.
|
|
*
|
|
* @since 4.6.0
|
|
* @since 4.6.0 Introduced 'term_taxonomy_id' parameter.
|
|
* @access public
|
|
*
|
|
* @param string|array $query {
|
|
* Optional. Array or query string of term query parameters. Default empty.
|
|
*
|
|
* @type string|array $taxonomy Taxonomy name, or array of taxonomies, to which results should
|
|
* be limited.
|
|
* @type string $orderby Field(s) to order terms by. Accepts term fields ('name',
|
|
* 'slug', 'term_group', 'term_id', 'id', 'description'),
|
|
* 'count' for term taxonomy count, 'include' to match the
|
|
* 'order' of the $include param, 'meta_value', 'meta_value_num',
|
|
* the value of `$meta_key`, the array keys of `$meta_query`, or
|
|
* 'none' to omit the ORDER BY clause. Defaults to 'name'.
|
|
* @type string $order Whether to order terms in ascending or descending order.
|
|
* Accepts 'ASC' (ascending) or 'DESC' (descending).
|
|
* Default 'ASC'.
|
|
* @type bool|int $hide_empty Whether to hide terms not assigned to any posts. Accepts
|
|
* 1|true or 0|false. Default 1|true.
|
|
* @type array|string $include Array or comma/space-separated string of term ids to include.
|
|
* Default empty array.
|
|
* @type array|string $exclude Array or comma/space-separated string of term ids to exclude.
|
|
* If $include is non-empty, $exclude is ignored.
|
|
* Default empty array.
|
|
* @type array|string $exclude_tree Array or comma/space-separated string of term ids to exclude
|
|
* along with all of their descendant terms. If $include is
|
|
* non-empty, $exclude_tree is ignored. Default empty array.
|
|
* @type int|string $number Maximum number of terms to return. Accepts ''|0 (all) or any
|
|
* positive number. Default ''|0 (all).
|
|
* @type int $offset The number by which to offset the terms query. Default empty.
|
|
* @type string $fields Term fields to query for. Accepts 'all' (returns an array of
|
|
* complete term objects), 'ids' (returns an array of ids),
|
|
* 'id=>parent' (returns an associative array with ids as keys,
|
|
* parent term IDs as values), 'names' (returns an array of term
|
|
* names), 'count' (returns the number of matching terms),
|
|
* 'id=>name' (returns an associative array with ids as keys,
|
|
* term names as values), or 'id=>slug' (returns an associative
|
|
* array with ids as keys, term slugs as values). Default 'all'.
|
|
* @type bool $count Whether to return a term count (true) or array of term objects
|
|
* (false). Will take precedence over `$fields` if true.
|
|
* Default false.
|
|
* @type string|array $name Optional. Name or array of names to return term(s) for.
|
|
* Default empty.
|
|
* @type string|array $slug Optional. Slug or array of slugs to return term(s) for.
|
|
* Default empty.
|
|
* @type int|array $term_taxonomy_id Optional. Term taxonomy ID, or array of term taxonomy IDs,
|
|
* to match when querying terms.
|
|
* @type bool $hierarchical Whether to include terms that have non-empty descendants (even
|
|
* if $hide_empty is set to true). Default true.
|
|
* @type string $search Search criteria to match terms. Will be SQL-formatted with
|
|
* wildcards before and after. Default empty.
|
|
* @type string $name__like Retrieve terms with criteria by which a term is LIKE
|
|
* `$name__like`. Default empty.
|
|
* @type string $description__like Retrieve terms where the description is LIKE
|
|
* `$description__like`. Default empty.
|
|
* @type bool $pad_counts Whether to pad the quantity of a term's children in the
|
|
* quantity of each term's "count" object variable.
|
|
* Default false.
|
|
* @type string $get Whether to return terms regardless of ancestry or whether the
|
|
* terms are empty. Accepts 'all' or empty (disabled).
|
|
* Default empty.
|
|
* @type int $child_of Term ID to retrieve child terms of. If multiple taxonomies
|
|
* are passed, $child_of is ignored. Default 0.
|
|
* @type int|string $parent Parent term ID to retrieve direct-child terms of.
|
|
* Default empty.
|
|
* @type bool $childless True to limit results to terms that have no children.
|
|
* This parameter has no effect on non-hierarchical taxonomies.
|
|
* Default false.
|
|
* @type string $cache_domain Unique cache key to be produced when this query is stored in
|
|
* an object cache. Default is 'core'.
|
|
* @type bool $update_term_meta_cache Whether to prime meta caches for matched terms. Default true.
|
|
* @type array $meta_query Optional. Meta query clauses to limit retrieved terms by.
|
|
* See `WP_Meta_Query`. Default empty.
|
|
* @type string $meta_key Limit terms to those matching a specific metadata key.
|
|
* Can be used in conjunction with `$meta_value`.
|
|
* @type string $meta_value Limit terms to those matching a specific metadata value.
|
|
* Usually used in conjunction with `$meta_key`.
|
|
* }
|
|
*/
|
|
public function __construct( $query = '' ) {
|
|
$this->query_var_defaults = array(
|
|
'taxonomy' => null,
|
|
'orderby' => 'name',
|
|
'order' => 'ASC',
|
|
'hide_empty' => true,
|
|
'include' => array(),
|
|
'exclude' => array(),
|
|
'exclude_tree' => array(),
|
|
'number' => '',
|
|
'offset' => '',
|
|
'fields' => 'all',
|
|
'count' => false,
|
|
'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',
|
|
'update_term_meta_cache' => true,
|
|
'meta_query' => '',
|
|
);
|
|
|
|
if ( ! empty( $query ) ) {
|
|
$this->query( $query );
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Parse arguments passed to the term query with default query parameters.
|
|
*
|
|
* @since 4.6.0
|
|
* @access public
|
|
*
|
|
* @param string|array $query WP_Term_Query arguments. See WP_Term_Query::__construct()
|
|
*/
|
|
public function parse_query( $query = '' ) {
|
|
if ( empty( $query ) ) {
|
|
$query = $this->query_vars;
|
|
}
|
|
|
|
$taxonomies = isset( $query['taxonomy'] ) ? $query['taxonomy'] : null;
|
|
|
|
/**
|
|
* Filters the terms query default arguments.
|
|
*
|
|
* Use {@see 'get_terms_args'} to filter the passed arguments.
|
|
*
|
|
* @since 4.4.0
|
|
*
|
|
* @param array $defaults An array of default get_terms() arguments.
|
|
* @param array $taxonomies An array of taxonomies.
|
|
*/
|
|
$this->query_var_defaults = apply_filters( 'get_terms_defaults', $this->query_var_defaults, $taxonomies );
|
|
|
|
$query = wp_parse_args( $query, $this->query_var_defaults );
|
|
|
|
$query['number'] = absint( $query['number'] );
|
|
$query['offset'] = absint( $query['offset'] );
|
|
|
|
// 'parent' overrides 'child_of'.
|
|
if ( 0 < intval( $query['parent'] ) ) {
|
|
$query['child_of'] = false;
|
|
}
|
|
|
|
if ( 'all' == $query['get'] ) {
|
|
$query['childless'] = false;
|
|
$query['child_of'] = 0;
|
|
$query['hide_empty'] = 0;
|
|
$query['hierarchical'] = false;
|
|
$query['pad_counts'] = false;
|
|
}
|
|
|
|
$query['taxonomy'] = $taxonomies;
|
|
|
|
/**
|
|
* Filters the terms query arguments.
|
|
*
|
|
* @since 3.1.0
|
|
*
|
|
* @param array $args An array of get_terms() arguments.
|
|
* @param array $taxonomies An array of taxonomies.
|
|
*/
|
|
$this->query_vars = apply_filters( 'get_terms_args', $query, $taxonomies );
|
|
|
|
/**
|
|
* Fires after term query vars have been parsed.
|
|
*
|
|
* @since 4.6.0
|
|
*
|
|
* @param WP_Term_Query $this Current instance of WP_Term_Query.
|
|
*/
|
|
do_action( 'parse_term_query', $this );
|
|
}
|
|
|
|
/**
|
|
* Sets up the query for retrieving terms.
|
|
*
|
|
* @since 4.6.0
|
|
* @access public
|
|
*
|
|
* @param string|array $query Array or URL query string of parameters.
|
|
* @return array|int List of terms, or number of terms when 'count' is passed as a query var.
|
|
*/
|
|
public function query( $query ) {
|
|
$this->query_vars = wp_parse_args( $query );
|
|
return $this->get_terms();
|
|
}
|
|
|
|
/**
|
|
* Get terms, based on query_vars.
|
|
*
|
|
* @param 4.6.0
|
|
* @access public
|
|
*
|
|
* @global wpdb $wpdb WordPress database abstraction object.
|
|
*
|
|
* @return array
|
|
*/
|
|
public function get_terms() {
|
|
global $wpdb;
|
|
|
|
$this->parse_query( $this->query_vars );
|
|
$args = $this->query_vars;
|
|
|
|
// Set up meta_query so it's available to 'pre_get_terms'.
|
|
$this->meta_query = new WP_Meta_Query();
|
|
$this->meta_query->parse_query_vars( $args );
|
|
|
|
/**
|
|
* Fires before terms are retrieved.
|
|
*
|
|
* @since 4.6.0
|
|
*
|
|
* @param WP_Term_Query $this Current instance of WP_Term_Query.
|
|
*/
|
|
do_action( 'pre_get_terms', $this );
|
|
|
|
$taxonomies = $args['taxonomy'];
|
|
|
|
// Save queries by not crawling the tree in the case of multiple taxes or a flat tax.
|
|
$has_hierarchical_tax = false;
|
|
if ( $taxonomies ) {
|
|
foreach ( $taxonomies as $_tax ) {
|
|
if ( is_taxonomy_hierarchical( $_tax ) ) {
|
|
$has_hierarchical_tax = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
if ( ! $has_hierarchical_tax ) {
|
|
$args['hierarchical'] = false;
|
|
$args['pad_counts'] = false;
|
|
}
|
|
|
|
// 'parent' overrides 'child_of'.
|
|
if ( 0 < intval( $args['parent'] ) ) {
|
|
$args['child_of'] = false;
|
|
}
|
|
|
|
if ( 'all' == $args['get'] ) {
|
|
$args['childless'] = false;
|
|
$args['child_of'] = 0;
|
|
$args['hide_empty'] = 0;
|
|
$args['hierarchical'] = false;
|
|
$args['pad_counts'] = false;
|
|
}
|
|
|
|
/**
|
|
* Filters the terms query arguments.
|
|
*
|
|
* @since 3.1.0
|
|
*
|
|
* @param array $args An array of get_terms() arguments.
|
|
* @param array $taxonomies An array of taxonomies.
|
|
*/
|
|
$args = apply_filters( 'get_terms_args', $args, $taxonomies );
|
|
|
|
// Avoid the query if the queried parent/child_of term has no descendants.
|
|
$child_of = $args['child_of'];
|
|
$parent = $args['parent'];
|
|
|
|
if ( $child_of ) {
|
|
$_parent = $child_of;
|
|
} elseif ( $parent ) {
|
|
$_parent = $parent;
|
|
} else {
|
|
$_parent = false;
|
|
}
|
|
|
|
if ( $_parent ) {
|
|
$in_hierarchy = false;
|
|
foreach ( $taxonomies as $_tax ) {
|
|
$hierarchy = _get_term_hierarchy( $_tax );
|
|
|
|
if ( isset( $hierarchy[ $_parent ] ) ) {
|
|
$in_hierarchy = true;
|
|
}
|
|
}
|
|
|
|
if ( ! $in_hierarchy ) {
|
|
return array();
|
|
}
|
|
}
|
|
|
|
$orderby = $this->parse_orderby( $this->query_vars['orderby'] );
|
|
if ( $orderby ) {
|
|
$orderby = "ORDER BY $orderby";
|
|
}
|
|
|
|
$order = $this->parse_order( $this->query_vars['order'] );
|
|
|
|
if ( $taxonomies ) {
|
|
$this->sql_clauses['where']['taxonomy'] = "tt.taxonomy IN ('" . implode( "', '", array_map( 'esc_sql', $taxonomies ) ) . "')";
|
|
}
|
|
|
|
$exclude = $args['exclude'];
|
|
$exclude_tree = $args['exclude_tree'];
|
|
$include = $args['include'];
|
|
|
|
$inclusions = '';
|
|
if ( ! empty( $include ) ) {
|
|
$exclude = '';
|
|
$exclude_tree = '';
|
|
$inclusions = implode( ',', wp_parse_id_list( $include ) );
|
|
}
|
|
|
|
if ( ! empty( $inclusions ) ) {
|
|
$this->sql_clauses['where']['inclusions'] = 't.term_id IN ( ' . $inclusions . ' )';
|
|
}
|
|
|
|
$exclusions = array();
|
|
if ( ! empty( $exclude_tree ) ) {
|
|
$exclude_tree = wp_parse_id_list( $exclude_tree );
|
|
$excluded_children = $exclude_tree;
|
|
foreach ( $exclude_tree as $extrunk ) {
|
|
$excluded_children = array_merge(
|
|
$excluded_children,
|
|
(array) get_terms( $taxonomies[0], array(
|
|
'child_of' => intval( $extrunk ),
|
|
'fields' => 'ids',
|
|
'hide_empty' => 0
|
|
) )
|
|
);
|
|
}
|
|
$exclusions = array_merge( $excluded_children, $exclusions );
|
|
}
|
|
|
|
if ( ! empty( $exclude ) ) {
|
|
$exclusions = array_merge( wp_parse_id_list( $exclude ), $exclusions );
|
|
}
|
|
|
|
// 'childless' terms are those without an entry in the flattened term hierarchy.
|
|
$childless = (bool) $args['childless'];
|
|
if ( $childless ) {
|
|
foreach ( $taxonomies as $_tax ) {
|
|
$term_hierarchy = _get_term_hierarchy( $_tax );
|
|
$exclusions = array_merge( array_keys( $term_hierarchy ), $exclusions );
|
|
}
|
|
}
|
|
|
|
if ( ! empty( $exclusions ) ) {
|
|
$exclusions = 't.term_id NOT IN (' . implode( ',', array_map( 'intval', $exclusions ) ) . ')';
|
|
} else {
|
|
$exclusions = '';
|
|
}
|
|
|
|
/**
|
|
* Filters the terms to exclude from the terms query.
|
|
*
|
|
* @since 2.3.0
|
|
*
|
|
* @param string $exclusions `NOT IN` clause of the terms query.
|
|
* @param array $args An array of terms query arguments.
|
|
* @param array $taxonomies An array of taxonomies.
|
|
*/
|
|
$exclusions = apply_filters( 'list_terms_exclusions', $exclusions, $args, $taxonomies );
|
|
|
|
if ( ! empty( $exclusions ) ) {
|
|
// Must do string manipulation here for backward compatibility with filter.
|
|
$this->sql_clauses['where']['exclusions'] = preg_replace( '/^\s*AND\s*/', '', $exclusions );
|
|
}
|
|
|
|
if ( ! empty( $args['name'] ) ) {
|
|
$names = (array) $args['name'];
|
|
foreach ( $names as &$_name ) {
|
|
// `sanitize_term_field()` returns slashed data.
|
|
$_name = stripslashes( sanitize_term_field( 'name', $_name, 0, reset( $taxonomies ), 'db' ) );
|
|
}
|
|
|
|
$this->sql_clauses['where']['name'] = "t.name IN ('" . implode( "', '", array_map( 'esc_sql', $names ) ) . "')";
|
|
}
|
|
|
|
if ( ! empty( $args['slug'] ) ) {
|
|
if ( is_array( $args['slug'] ) ) {
|
|
$slug = array_map( 'sanitize_title', $args['slug'] );
|
|
$this->sql_clauses['where']['slug'] = "t.slug IN ('" . implode( "', '", $slug ) . "')";
|
|
} else {
|
|
$slug = sanitize_title( $args['slug'] );
|
|
$this->sql_clauses['where']['slug'] = "t.slug = '$slug'";
|
|
}
|
|
}
|
|
|
|
if ( ! empty( $args['term_taxonomy_id'] ) ) {
|
|
if ( is_array( $args['term_taxonomy_id'] ) ) {
|
|
$tt_ids = implode( ',', array_map( 'intval', $args['term_taxonomy_id'] ) );
|
|
$this->sql_clauses['where']['term_taxonomy_id'] = "tt.term_taxonomy_id IN ({$tt_ids})";
|
|
} else {
|
|
$this->sql_clauses['where']['term_taxonomy_id'] = $wpdb->prepare( "tt.term_taxonomy_id = %d", $args['term_taxonomy_id'] );
|
|
}
|
|
}
|
|
|
|
if ( ! empty( $args['name__like'] ) ) {
|
|
$this->sql_clauses['where']['name__like'] = $wpdb->prepare( "t.name LIKE %s", '%' . $wpdb->esc_like( $args['name__like'] ) . '%' );
|
|
}
|
|
|
|
if ( ! empty( $args['description__like'] ) ) {
|
|
$this->sql_clauses['where']['description__like'] = $wpdb->prepare( "tt.description LIKE %s", '%' . $wpdb->esc_like( $args['description__like'] ) . '%' );
|
|
}
|
|
|
|
if ( '' !== $parent ) {
|
|
$parent = (int) $parent;
|
|
$this->sql_clauses['where']['parent'] = "tt.parent = '$parent'";
|
|
}
|
|
|
|
$hierarchical = $args['hierarchical'];
|
|
if ( 'count' == $args['fields'] ) {
|
|
$hierarchical = false;
|
|
}
|
|
if ( $args['hide_empty'] && !$hierarchical ) {
|
|
$this->sql_clauses['where']['count'] = 'tt.count > 0';
|
|
}
|
|
|
|
$number = $args['number'];
|
|
$offset = $args['offset'];
|
|
|
|
// Don't limit the query results when we have to descend the family tree.
|
|
if ( $number && ! $hierarchical && ! $child_of && '' === $parent ) {
|
|
if ( $offset ) {
|
|
$limits = 'LIMIT ' . $offset . ',' . $number;
|
|
} else {
|
|
$limits = 'LIMIT ' . $number;
|
|
}
|
|
} else {
|
|
$limits = '';
|
|
}
|
|
|
|
|
|
if ( ! empty( $args['search'] ) ) {
|
|
$this->sql_clauses['where']['search'] = $this->get_search_sql( $args['search'] );
|
|
}
|
|
|
|
// Meta query support.
|
|
$join = '';
|
|
$distinct = '';
|
|
|
|
// Reparse meta_query query_vars, in case they were modified in a 'pre_get_terms' callback.
|
|
$this->meta_query->parse_query_vars( $this->query_vars );
|
|
$mq_sql = $this->meta_query->get_sql( 'term', 't', 'term_id' );
|
|
$meta_clauses = $this->meta_query->get_clauses();
|
|
|
|
if ( ! empty( $meta_clauses ) ) {
|
|
$join .= $mq_sql['join'];
|
|
$this->sql_clauses['where']['meta_query'] = preg_replace( '/^\s*AND\s*/', '', $mq_sql['where'] );
|
|
$distinct .= "DISTINCT";
|
|
|
|
}
|
|
|
|
$selects = array();
|
|
switch ( $args['fields'] ) {
|
|
case 'all':
|
|
$selects = array( 't.*', 'tt.*' );
|
|
break;
|
|
case 'ids':
|
|
case 'id=>parent':
|
|
$selects = array( 't.term_id', 'tt.parent', 'tt.count', 'tt.taxonomy' );
|
|
break;
|
|
case 'names':
|
|
$selects = array( 't.term_id', 'tt.parent', 'tt.count', 't.name', 'tt.taxonomy' );
|
|
break;
|
|
case 'count':
|
|
$orderby = '';
|
|
$order = '';
|
|
$selects = array( 'COUNT(*)' );
|
|
break;
|
|
case 'id=>name':
|
|
$selects = array( 't.term_id', 't.name', 'tt.count', 'tt.taxonomy' );
|
|
break;
|
|
case 'id=>slug':
|
|
$selects = array( 't.term_id', 't.slug', 'tt.count', 'tt.taxonomy' );
|
|
break;
|
|
}
|
|
|
|
$_fields = $args['fields'];
|
|
|
|
/**
|
|
* Filters the fields to select in the terms query.
|
|
*
|
|
* Field lists modified using this filter will only modify the term fields returned
|
|
* by the function when the `$fields` parameter set to 'count' or 'all'. In all other
|
|
* cases, the term fields in the results array will be determined by the `$fields`
|
|
* parameter alone.
|
|
*
|
|
* Use of this filter can result in unpredictable behavior, and is not recommended.
|
|
*
|
|
* @since 2.8.0
|
|
*
|
|
* @param array $selects An array of fields to select for the terms query.
|
|
* @param array $args An array of term query arguments.
|
|
* @param array $taxonomies An array of taxonomies.
|
|
*/
|
|
$fields = implode( ', ', apply_filters( 'get_terms_fields', $selects, $args, $taxonomies ) );
|
|
|
|
$join .= " INNER JOIN $wpdb->term_taxonomy AS tt ON t.term_id = tt.term_id";
|
|
|
|
$where = implode( ' AND ', $this->sql_clauses['where'] );
|
|
|
|
$pieces = array( 'fields', 'join', 'where', 'distinct', 'orderby', 'order', 'limits' );
|
|
|
|
/**
|
|
* Filters the terms query SQL clauses.
|
|
*
|
|
* @since 3.1.0
|
|
*
|
|
* @param array $pieces Terms query SQL clauses.
|
|
* @param array $taxonomies An array of taxonomies.
|
|
* @param array $args An array of terms query arguments.
|
|
*/
|
|
$clauses = apply_filters( 'terms_clauses', compact( $pieces ), $taxonomies, $args );
|
|
|
|
$fields = isset( $clauses[ 'fields' ] ) ? $clauses[ 'fields' ] : '';
|
|
$join = isset( $clauses[ 'join' ] ) ? $clauses[ 'join' ] : '';
|
|
$where = isset( $clauses[ 'where' ] ) ? $clauses[ 'where' ] : '';
|
|
$distinct = isset( $clauses[ 'distinct' ] ) ? $clauses[ 'distinct' ] : '';
|
|
$orderby = isset( $clauses[ 'orderby' ] ) ? $clauses[ 'orderby' ] : '';
|
|
$order = isset( $clauses[ 'order' ] ) ? $clauses[ 'order' ] : '';
|
|
$limits = isset( $clauses[ 'limits' ] ) ? $clauses[ 'limits' ] : '';
|
|
|
|
if ( $where ) {
|
|
$where = "WHERE $where";
|
|
}
|
|
|
|
$this->sql_clauses['select'] = "SELECT $distinct $fields";
|
|
$this->sql_clauses['from'] = "FROM $wpdb->terms AS t $join";
|
|
$this->sql_clauses['orderby'] = $orderby ? "$orderby $order" : '';
|
|
$this->sql_clauses['limits'] = $limits;
|
|
|
|
$this->request = "{$this->sql_clauses['select']} {$this->sql_clauses['from']} {$where} {$this->sql_clauses['orderby']} {$this->sql_clauses['limits']}";
|
|
|
|
// $args can be anything. Only use the args defined in defaults to compute the key.
|
|
$key = md5( serialize( wp_array_slice_assoc( $args, array_keys( $this->query_var_defaults ) ) ) . serialize( $taxonomies ) . $this->request );
|
|
$last_changed = wp_cache_get( 'last_changed', 'terms' );
|
|
if ( ! $last_changed ) {
|
|
$last_changed = microtime();
|
|
wp_cache_set( 'last_changed', $last_changed, 'terms' );
|
|
}
|
|
$cache_key = "get_terms:$key:$last_changed";
|
|
$cache = wp_cache_get( $cache_key, 'terms' );
|
|
if ( false !== $cache ) {
|
|
if ( 'all' === $_fields ) {
|
|
$cache = array_map( 'get_term', $cache );
|
|
}
|
|
|
|
return $cache;
|
|
}
|
|
|
|
if ( 'count' == $_fields ) {
|
|
return $wpdb->get_var( $this->request );
|
|
}
|
|
|
|
$terms = $wpdb->get_results( $this->request );
|
|
if ( 'all' == $_fields ) {
|
|
update_term_cache( $terms );
|
|
}
|
|
|
|
// Prime termmeta cache.
|
|
if ( $args['update_term_meta_cache'] ) {
|
|
$term_ids = wp_list_pluck( $terms, 'term_id' );
|
|
update_termmeta_cache( $term_ids );
|
|
}
|
|
|
|
if ( empty( $terms ) ) {
|
|
wp_cache_add( $cache_key, array(), 'terms', DAY_IN_SECONDS );
|
|
return array();
|
|
}
|
|
|
|
if ( $child_of ) {
|
|
foreach ( $taxonomies as $_tax ) {
|
|
$children = _get_term_hierarchy( $_tax );
|
|
if ( ! empty( $children ) ) {
|
|
$terms = _get_term_children( $child_of, $terms, $_tax );
|
|
}
|
|
}
|
|
}
|
|
|
|
// Update term counts to include children.
|
|
if ( $args['pad_counts'] && 'all' == $_fields ) {
|
|
foreach ( $taxonomies as $_tax ) {
|
|
_pad_term_counts( $terms, $_tax );
|
|
}
|
|
}
|
|
|
|
// Make sure we show empty categories that have children.
|
|
if ( $hierarchical && $args['hide_empty'] && is_array( $terms ) ) {
|
|
foreach ( $terms as $k => $term ) {
|
|
if ( ! $term->count ) {
|
|
$children = get_term_children( $term->term_id, $term->taxonomy );
|
|
if ( is_array( $children ) ) {
|
|
foreach ( $children as $child_id ) {
|
|
$child = get_term( $child_id, $term->taxonomy );
|
|
if ( $child->count ) {
|
|
continue 2;
|
|
}
|
|
}
|
|
}
|
|
|
|
// It really is empty.
|
|
unset( $terms[ $k ] );
|
|
}
|
|
}
|
|
}
|
|
|
|
$_terms = array();
|
|
if ( 'id=>parent' == $_fields ) {
|
|
foreach ( $terms as $term ) {
|
|
$_terms[ $term->term_id ] = $term->parent;
|
|
}
|
|
} elseif ( 'ids' == $_fields ) {
|
|
foreach ( $terms as $term ) {
|
|
$_terms[] = $term->term_id;
|
|
}
|
|
} elseif ( 'names' == $_fields ) {
|
|
foreach ( $terms as $term ) {
|
|
$_terms[] = $term->name;
|
|
}
|
|
} elseif ( 'id=>name' == $_fields ) {
|
|
foreach ( $terms as $term ) {
|
|
$_terms[ $term->term_id ] = $term->name;
|
|
}
|
|
} elseif ( 'id=>slug' == $_fields ) {
|
|
foreach ( $terms as $term ) {
|
|
$_terms[ $term->term_id ] = $term->slug;
|
|
}
|
|
}
|
|
|
|
if ( ! empty( $_terms ) ) {
|
|
$terms = $_terms;
|
|
}
|
|
|
|
// Hierarchical queries are not limited, so 'offset' and 'number' must be handled now.
|
|
if ( $hierarchical && $number && is_array( $terms ) ) {
|
|
if ( $offset >= count( $terms ) ) {
|
|
$terms = array();
|
|
} else {
|
|
$terms = array_slice( $terms, $offset, $number, true );
|
|
}
|
|
}
|
|
|
|
wp_cache_add( $cache_key, $terms, 'terms', DAY_IN_SECONDS );
|
|
|
|
if ( 'all' === $_fields ) {
|
|
$terms = array_map( 'get_term', $terms );
|
|
}
|
|
|
|
$this->terms = $terms;
|
|
return $this->terms;
|
|
}
|
|
|
|
/**
|
|
* Parse and sanitize 'orderby' keys passed to the term query.
|
|
*
|
|
* @since 4.6.0
|
|
* @access protected
|
|
*
|
|
* @global wpdb $wpdb WordPress database abstraction object.
|
|
*
|
|
* @param string $orderby_raw Alias for the field to order by.
|
|
* @return string|false Value to used in the ORDER clause. False otherwise.
|
|
*/
|
|
protected function parse_orderby( $orderby_raw ) {
|
|
$_orderby = strtolower( $orderby_raw );
|
|
$maybe_orderby_meta = false;
|
|
if ( 'count' == $_orderby ) {
|
|
$orderby = 'tt.count';
|
|
} elseif ( 'name' == $_orderby ) {
|
|
$orderby = 't.name';
|
|
} elseif ( 'slug' == $_orderby ) {
|
|
$orderby = 't.slug';
|
|
} elseif ( 'include' == $_orderby && ! empty( $this->query_vars['include'] ) ) {
|
|
$include = implode( ',', array_map( 'absint', $this->query_vars['include'] ) );
|
|
$orderby = "FIELD( t.term_id, $include )";
|
|
} elseif ( 'term_group' == $_orderby ) {
|
|
$orderby = 't.term_group';
|
|
} elseif ( 'description' == $_orderby ) {
|
|
$orderby = 'tt.description';
|
|
} elseif ( 'none' == $_orderby ) {
|
|
$orderby = '';
|
|
} elseif ( empty( $_orderby ) || 'id' == $_orderby || 'term_id' === $_orderby ) {
|
|
$orderby = 't.term_id';
|
|
} else {
|
|
$orderby = 't.name';
|
|
|
|
// This may be a value of orderby related to meta.
|
|
$maybe_orderby_meta = true;
|
|
}
|
|
|
|
/**
|
|
* Filters the ORDERBY clause of the terms query.
|
|
*
|
|
* @since 2.8.0
|
|
*
|
|
* @param string $orderby `ORDERBY` clause of the terms query.
|
|
* @param array $args An array of terms query arguments.
|
|
* @param array $taxonomies An array of taxonomies.
|
|
*/
|
|
$orderby = apply_filters( 'get_terms_orderby', $orderby, $this->query_vars, $this->query_vars['taxonomy'] );
|
|
|
|
// Run after the 'get_terms_orderby' filter for backward compatibility.
|
|
if ( $maybe_orderby_meta ) {
|
|
$maybe_orderby_meta = $this->parse_orderby_meta( $_orderby );
|
|
if ( $maybe_orderby_meta ) {
|
|
$orderby = $maybe_orderby_meta;
|
|
}
|
|
}
|
|
|
|
return $orderby;
|
|
}
|
|
|
|
/**
|
|
* Generate the ORDER BY clause for an 'orderby' param that is potentially related to a meta query.
|
|
*
|
|
* @since 4.6.0
|
|
* @access public
|
|
*
|
|
* @param string $orderby_raw Raw 'orderby' value passed to WP_Term_Query.
|
|
* @return string
|
|
*/
|
|
protected function parse_orderby_meta( $orderby_raw ) {
|
|
$orderby = '';
|
|
|
|
// Tell the meta query to generate its SQL, so we have access to table aliases.
|
|
$this->meta_query->get_sql( 'term', 't', 'term_id' );
|
|
$meta_clauses = $this->meta_query->get_clauses();
|
|
if ( ! $meta_clauses || ! $orderby_raw ) {
|
|
return $orderby;
|
|
}
|
|
|
|
$allowed_keys = array();
|
|
$primary_meta_key = null;
|
|
$primary_meta_query = reset( $meta_clauses );
|
|
if ( ! empty( $primary_meta_query['key'] ) ) {
|
|
$primary_meta_key = $primary_meta_query['key'];
|
|
$allowed_keys[] = $primary_meta_key;
|
|
}
|
|
$allowed_keys[] = 'meta_value';
|
|
$allowed_keys[] = 'meta_value_num';
|
|
$allowed_keys = array_merge( $allowed_keys, array_keys( $meta_clauses ) );
|
|
|
|
if ( ! in_array( $orderby_raw, $allowed_keys, true ) ) {
|
|
return $orderby;
|
|
}
|
|
|
|
switch( $orderby_raw ) {
|
|
case $primary_meta_key:
|
|
case 'meta_value':
|
|
if ( ! empty( $primary_meta_query['type'] ) ) {
|
|
$orderby = "CAST({$primary_meta_query['alias']}.meta_value AS {$primary_meta_query['cast']})";
|
|
} else {
|
|
$orderby = "{$primary_meta_query['alias']}.meta_value";
|
|
}
|
|
break;
|
|
|
|
case 'meta_value_num':
|
|
$orderby = "{$primary_meta_query['alias']}.meta_value+0";
|
|
break;
|
|
|
|
default:
|
|
if ( array_key_exists( $orderby_raw, $meta_clauses ) ) {
|
|
// $orderby corresponds to a meta_query clause.
|
|
$meta_clause = $meta_clauses[ $orderby_raw ];
|
|
$orderby = "CAST({$meta_clause['alias']}.meta_value AS {$meta_clause['cast']})";
|
|
}
|
|
break;
|
|
}
|
|
|
|
return $orderby;
|
|
}
|
|
|
|
/**
|
|
* Parse an 'order' query variable and cast it to ASC or DESC as necessary.
|
|
*
|
|
* @since 4.6.0
|
|
* @access protected
|
|
*
|
|
* @param string $order The 'order' query variable.
|
|
* @return string The sanitized 'order' query variable.
|
|
*/
|
|
protected function parse_order( $order ) {
|
|
if ( ! is_string( $order ) || empty( $order ) ) {
|
|
return 'DESC';
|
|
}
|
|
|
|
if ( 'ASC' === strtoupper( $order ) ) {
|
|
return 'ASC';
|
|
} else {
|
|
return 'DESC';
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Used internally to generate a SQL string related to the 'search' parameter.
|
|
*
|
|
* @since 4.6.0
|
|
* @access protected
|
|
*
|
|
* @global wpdb $wpdb WordPress database abstraction object.
|
|
*
|
|
* @param string $string
|
|
* @return string
|
|
*/
|
|
protected function get_search_sql( $string ) {
|
|
global $wpdb;
|
|
|
|
$like = '%' . $wpdb->esc_like( $string ) . '%';
|
|
|
|
return $wpdb->prepare( '((t.name LIKE %s) OR (t.slug LIKE %s))', $like, $like );
|
|
}
|
|
}
|