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Introduce WP_Tax_Query. Fix canonical redirects in the process. See #15752

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git-svn-id: http://svn.automattic.com/wordpress/trunk@16849 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit is contained in:
scribu 2010-12-09 19:29:21 +00:00
parent 3ed654c847
commit e5690e7ebe
3 changed files with 132 additions and 131 deletions
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2
wp-includes/canonical.php
View File

@ -146,7 +146,7 @@ function redirect_canonical( $requested_url = null, $do_redirect = true ) {
} elseif ( is_category() || is_tag() || is_tax() ) { // Terms (Tags/categories)
$term_count = 0;
foreach ( $wp_query->tax_query as $tax_query )
foreach ( $wp_query->tax_query->queries as $tax_query )
$term_count += count( $tax_query['terms'] );
$obj = $wp_query->get_queried_object();

19
wp-includes/query.php
View File

@ -714,9 +714,9 @@ class WP_Query {
*
* @since 3.1.0
* @access public
* @var array
* @var object WP_Tax_Query
*/
var $tax_query = array();
var $tax_query;
/**
* Holds the data for a single object that is queried.
@ -1584,12 +1584,9 @@ class WP_Query {
);
}
_set_tax_query_defaults( $tax_query );
foreach ( $tax_query as $query ) {
if ( ! is_array( $query ) )
continue;
$tax_query_obj = new WP_Tax_Query( $tax_query );
foreach ( $tax_query_obj->queries as $query ) {
if ( 'IN' == $query['operator'] ) {
switch ( $query['taxonomy'] ) {
case 'category':
@ -1604,7 +1601,7 @@ class WP_Query {
}
}
return $tax_query;
return $tax_query_obj;
}
/**
@ -1942,7 +1939,7 @@ class WP_Query {
if ( $this->is_category || $this->is_tag || $this->is_tax ) {
$this->tax_query = $this->parse_tax_query( $q );
$clauses = call_user_func_array( 'get_tax_sql', array( $this->tax_query, $wpdb->posts, 'ID', &$this) );
$clauses = $this->tax_query->get_sql( $wpdb->posts, 'ID' );
$join .= $clauses['join'];
$where .= $clauses['where'];
@ -1957,7 +1954,7 @@ class WP_Query {
}
// Back-compat
$tax_query_in = wp_list_filter( $this->tax_query, array( 'operator' => 'IN' ) );
$tax_query_in = wp_list_filter( $this->tax_query->queries, array( 'operator' => 'IN' ) );
if ( !empty( $tax_query_in ) ) {
if ( !isset( $q['taxonomy'] ) ) {
foreach ( $tax_query_in as $a_tax_query ) {
@ -2657,7 +2654,7 @@ class WP_Query {
$this->queried_object = NULL;
$this->queried_object_id = 0;
$tax_query_in = wp_list_filter( $this->tax_query, array( 'operator' => 'IN' ) );
$tax_query_in = wp_list_filter( $this->tax_query->queries, array( 'operator' => 'IN' ) );
if ( !empty( $tax_query_in ) ) {
$query = reset( $tax_query_in );

242
wp-includes/taxonomy.php
View File

@ -527,148 +527,152 @@ function get_objects_in_term( $term_ids, $taxonomies, $args = array() ) {
* @return array
*/
function get_tax_sql( $tax_query, $primary_table, $primary_id_column ) {
global $wpdb;
$tax_query_obj = new WP_Tax_Query( $tax_query );
return $tax_query_obj->get_sql( $primary_table, $primary_id_column );
}
$join = '';
$where = array();
$i = 0;
class WP_Tax_Query {
var $relation = '';
var $queries = array();
_set_tax_query_defaults( $tax_query );
function __construct( &$tax_query ) {
if ( isset( $tax_query['relation'] ) && strtoupper( $tax_query['relation'] ) == 'OR' ) {
$this->relation = 'OR';
} else {
$this->relation = 'AND';
}
if ( strtoupper( $tax_query['relation'] ) == 'OR' ) {
$relation = 'OR';
} else {
$relation = 'AND';
$defaults = array(
'taxonomy' => '',
'terms' => array(),
'include_children' => true,
'field' => 'term_id',
'operator' => 'IN',
);
foreach ( $tax_query as $query ) {
if ( ! is_array( $query ) )
continue;
$query = array_merge( $defaults, $query );
$query['terms'] = (array) $query['terms'];
$this->queries[] = $query;
}
}
foreach ( $tax_query as $query ) {
if ( ! is_array( $query ) )
continue;
function get_sql( $primary_table, $primary_id_column ) {
global $wpdb;
extract( $query );
$join = '';
$where = array();
$i = 0;
if ( ! taxonomy_exists( $taxonomy ) )
return array( 'join' => '', 'where' => ' AND 0 = 1');
foreach ( $this->queries as $query ) {
extract( $query );
$terms = array_unique( (array) $terms );
if ( ! taxonomy_exists( $taxonomy ) )
return array( 'join' => '', 'where' => ' AND 0 = 1');
if ( empty( $terms ) )
continue;
if ( is_taxonomy_hierarchical( $taxonomy ) && $include_children ) {
_transform_terms( $terms, $taxonomy, $field, 'term_id' );
$children = array();
foreach ( $terms as $term ) {
$children = array_merge( $children, get_term_children( $term, $taxonomy ) );
$children[] = $term;
}
$terms = $children;
_transform_terms( $terms, $taxonomy, 'term_id', 'term_taxonomy_id' );
}
else {
_transform_terms( $terms, $taxonomy, $field, 'term_taxonomy_id' );
}
if ( 'IN' == $operator ) {
if ( empty( $terms ) ) {
if ( 'OR' == $relation )
continue;
else
return array( 'join' => '', 'where' => ' AND 0 = 1' );
}
$terms = implode( ',', $terms );
$alias = $i ? 'tt' . $i : $wpdb->term_relationships;
$join .= " INNER JOIN $wpdb->term_relationships";
$join .= $i ? " AS $alias" : '';
$join .= " ON ($primary_table.$primary_id_column = $alias.object_id)";
$where[] = "$alias.term_taxonomy_id $operator ($terms)";
}
elseif ( 'NOT IN' == $operator ) {
$terms = array_unique( (array) $terms );
if ( empty( $terms ) )
continue;
$terms = implode( ',', $terms );
if ( is_taxonomy_hierarchical( $taxonomy ) && $include_children ) {
$this->_transform_terms( $terms, $taxonomy, $field, 'term_id' );
$where[] = "$primary_table.$primary_id_column NOT IN (
SELECT object_id
FROM $wpdb->term_relationships
WHERE term_taxonomy_id IN ($terms)
)";
$children = array();
foreach ( $terms as $term ) {
$children = array_merge( $children, get_term_children( $term, $taxonomy ) );
$children[] = $term;
}
$terms = $children;
$this->_transform_terms( $terms, $taxonomy, 'term_id', 'term_taxonomy_id' );
}
else {
$this->_transform_terms( $terms, $taxonomy, $field, 'term_taxonomy_id' );
}
if ( 'IN' == $operator ) {
if ( empty( $terms ) ) {
if ( 'OR' == $relation )
continue;
else
return array( 'join' => '', 'where' => ' AND 0 = 1' );
}
$terms = implode( ',', $terms );
$alias = $i ? 'tt' . $i : $wpdb->term_relationships;
$join .= " INNER JOIN $wpdb->term_relationships";
$join .= $i ? " AS $alias" : '';
$join .= " ON ($primary_table.$primary_id_column = $alias.object_id)";
$where[] = "$alias.term_taxonomy_id $operator ($terms)";
}
elseif ( 'NOT IN' == $operator ) {
if ( empty( $terms ) )
continue;
$terms = implode( ',', $terms );
$where[] = "$primary_table.$primary_id_column NOT IN (
SELECT object_id
FROM $wpdb->term_relationships
WHERE term_taxonomy_id IN ($terms)
)";
}
$i++;
}
$i++;
if ( !empty( $where ) )
$where = ' AND ( ' . implode( " $relation ", $where ) . ' )';
else
$where = '';
return compact( 'join', 'where' );
}
if ( !empty( $where ) )
$where = ' AND ( ' . implode( " $relation ", $where ) . ' )';
else
$where = '';
function _transform_terms( &$terms, $taxonomy, $field, $resulting_field ) {
global $wpdb;
return compact( 'join', 'where' );
}
if ( empty( $terms ) )
return;
function _set_tax_query_defaults( &$tax_query ) {
if ( ! isset( $tax_query['relation'] ) )
$tax_query['relation'] = 'AND';
if ( $field == $resulting_field )
return;
$defaults = array(
'taxonomy' => '',
'terms' => array(),
'include_children' => true,
'field' => 'term_id',
'operator' => 'IN',
);
$resulting_field = esc_sql( $resulting_field );
foreach ( $tax_query as $i => $query ) {
if ( ! is_array( $query ) )
continue;
switch ( $field ) {
case 'slug':
case 'name':
$terms = "'" . implode( "','", array_map( 'sanitize_title_for_query', $terms ) ) . "'";
$terms = $wpdb->get_col( "
SELECT $wpdb->term_taxonomy.$resulting_field
FROM $wpdb->term_taxonomy
INNER JOIN $wpdb->terms USING (term_id)
WHERE taxonomy = '$taxonomy'
AND $wpdb->terms.$field IN ($terms)
" );
break;
$tax_query[$i] = array_merge( $defaults, $query );
$tax_query[$i]['terms'] = (array) $tax_query[$i]['terms'];
}
}
function _transform_terms( &$terms, $taxonomy, $field, $resulting_field ) {
global $wpdb;
if ( empty( $terms ) )
return;
if ( $field == $resulting_field )
return;
$resulting_field = esc_sql( $resulting_field );
switch ( $field ) {
case 'slug':
case 'name':
$terms = "'" . implode( "','", array_map( 'sanitize_title_for_query', $terms ) ) . "'";
$terms = $wpdb->get_col( "
SELECT $wpdb->term_taxonomy.$resulting_field
FROM $wpdb->term_taxonomy
INNER JOIN $wpdb->terms USING (term_id)
WHERE taxonomy = '$taxonomy'
AND $wpdb->terms.$field IN ($terms)
" );
break;
default:
$terms = implode( ',', array_map( 'intval', $terms ) );
$terms = $wpdb->get_col( "
SELECT $resulting_field
FROM $wpdb->term_taxonomy
WHERE taxonomy = '$taxonomy'
AND term_id IN ($terms)
" );
default:
$terms = implode( ',', array_map( 'intval', $terms ) );
$terms = $wpdb->get_col( "
SELECT $resulting_field
FROM $wpdb->term_taxonomy
WHERE taxonomy = '$taxonomy'
AND term_id IN ($terms)
" );
}
}
}