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Clean up taxonomy queries in WP_Query. See #12891 

git-svn-id: http://svn.automattic.com/wordpress/trunk@15613 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit is contained in:
scribu 2010-09-13 16:44:14 +00:00
parent ec7490bc41
commit 2030231f66
4 changed files with 210 additions and 188 deletions
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15
wp-includes/general-template.php
View File

@ -1589,6 +1589,8 @@ function feed_links( $args = array() ) {
* @param array $args Optional arguments.
*/
function feed_links_extra( $args = array() ) {
global $wp_query;
$defaults = array(
/* translators: Separator between blog name and feed type in feed links */
'separator' => _x('»', 'feed link'),
@ -1614,16 +1616,15 @@ function feed_links_extra( $args = array() ) {
$href = get_post_comments_feed_link( $post->ID );
}
} elseif ( is_category() ) {
$cat_id = intval( get_query_var('cat') );
$term = $wp_query->get_queried_object();
$title = esc_attr(sprintf( $args['cattitle'], get_bloginfo('name'), $args['separator'], get_cat_name( $cat_id ) ));
$href = get_category_feed_link( $cat_id );
$title = esc_attr(sprintf( $args['cattitle'], get_bloginfo('name'), $args['separator'], $term->name ));
$href = get_category_feed_link( $term->term_id );
} elseif ( is_tag() ) {
$tag_id = intval( get_query_var('tag_id') );
$tag = get_tag( $tag_id );
$term = $wp_query->get_queried_object();
$title = esc_attr(sprintf( $args['tagtitle'], get_bloginfo('name'), $args['separator'], $tag->name ));
$href = get_tag_feed_link( $tag_id );
$title = esc_attr(sprintf( $args['tagtitle'], get_bloginfo('name'), $args['separator'], $term->name ));
$href = get_tag_feed_link( $term->term_id );
} elseif ( is_author() ) {
$author_id = intval( get_query_var('author') );

248
wp-includes/query.php
View File

@ -661,6 +661,15 @@ class WP_Query {
*/
var $query_vars = array();
/**
* Taxonomy query, after parsing
*
* @since 3.1.0
* @access public
* @var array
*/
var $tax_query = array();
/**
* Holds the data for a single object that is queried.
*
@ -1528,7 +1537,6 @@ class WP_Query {
// First let's clear some variables
$distinct = '';
$whichcat = '';
$whichauthor = '';
$whichmimetype = '';
$where = '';
@ -1785,13 +1793,38 @@ class WP_Query {
// Allow plugins to contextually add/remove/modify the search section of the database query
$search = apply_filters_ref_array('posts_search', array( $search, &$this ) );
// Category stuff
// Taxonomies
$tax_query = array();
if ( empty($q['cat']) || ($q['cat'] == '0') ||
// Bypass cat checks if fetching specific posts
$this->is_singular ) {
$whichcat = '';
} else {
if ( $this->is_tax ) {
foreach ( $GLOBALS['wp_taxonomies'] as $taxonomy => $t ) {
if ( $t->query_var && !empty( $q[$t->query_var] ) ) {
$tax_query_defaults = array(
'taxonomy' => $taxonomy,
'field' => 'slug',
'operator' => 'IN'
);
$term = str_replace( ' ', '+', $q[$t->query_var] );
if ( strpos($term, '+') !== false ) {
$terms = preg_split( '/[+\s]+/', $term );
foreach ( $terms as $term ) {
$tax_query[] = array_merge( $tax_query_defaults, array(
'terms' => array( $term )
) );
}
} else {
$tax_query[] = array_merge( $tax_query_defaults, array(
'terms' => preg_split('/[,\s]+/', $term)
) );
}
}
}
}
// Category stuff
if ( !empty($q['cat']) && '0' != $q['cat'] && !$this->is_singular ) {
$q['cat'] = ''.urldecode($q['cat']).'';
$q['cat'] = addslashes_gpc($q['cat']);
$cat_array = preg_split('/[,\s]+/', $q['cat']);
@ -1804,25 +1837,29 @@ class WP_Query {
$cat = abs($cat);
if ( $in ) {
$q['category__in'][] = $cat;
$q['category__in'] = array_merge($q['category__in'], get_term_children($cat, 'category'));
} else {
$q['category__not_in'][] = $cat;
$q['category__not_in'] = array_merge($q['category__not_in'], get_term_children($cat, 'category'));
}
}
$q['cat'] = implode(',', $req_cats);
}
if ( !empty($q['category__in']) ) {
$join = " INNER JOIN $wpdb->term_relationships ON ($wpdb->posts.ID = $wpdb->term_relationships.object_id) INNER JOIN $wpdb->term_taxonomy ON ($wpdb->term_relationships.term_taxonomy_id = $wpdb->term_taxonomy.term_taxonomy_id) ";
$whichcat .= " AND $wpdb->term_taxonomy.taxonomy = 'category' ";
$include_cats = "'" . implode("', '", $q['category__in']) . "'";
$whichcat .= " AND $wpdb->term_taxonomy.term_id IN ($include_cats) ";
$tax_query[] = array(
'taxonomy' => 'category',
'terms' => $q['category__in'],
'operator' => 'IN',
'field' => 'term_id'
);
}
if ( !empty($q['category__not_in']) ) {
$cat_string = "'" . implode("', '", $q['category__not_in']) . "'";
$whichcat .= " AND $wpdb->posts.ID NOT IN ( SELECT tr.object_id FROM $wpdb->term_relationships AS tr INNER JOIN $wpdb->term_taxonomy AS tt ON tr.term_taxonomy_id = tt.term_taxonomy_id WHERE tt.taxonomy = 'category' AND tt.term_id IN ($cat_string) )";
$tax_query[] = array(
'taxonomy' => 'category',
'terms' => $q['category__not_in'],
'operator' => 'NOT IN',
'field' => 'term_id'
);
}
// Category stuff for nice URLs
@ -1851,137 +1888,50 @@ class WP_Query {
$q['cat'] = $reqcat;
$join = " INNER JOIN $wpdb->term_relationships ON ($wpdb->posts.ID = $wpdb->term_relationships.object_id) INNER JOIN $wpdb->term_taxonomy ON ($wpdb->term_relationships.term_taxonomy_id = $wpdb->term_taxonomy.term_taxonomy_id) ";
$whichcat = " AND $wpdb->term_taxonomy.taxonomy = 'category' ";
$in_cats = array($q['cat']);
$in_cats = array_merge($in_cats, get_term_children($q['cat'], 'category'));
$in_cats = "'" . implode("', '", $in_cats) . "'";
$whichcat .= "AND $wpdb->term_taxonomy.term_id IN ($in_cats)";
$groupby = "{$wpdb->posts}.ID";
$tax_query[] = array(
'taxonomy' => 'category',
'terms' => array( $q['cat'] ),
'operator' => 'IN',
'field' => 'term_id'
);
}
// Tags
if ( '' != $q['tag'] ) {
if ( strpos($q['tag'], ',') !== false ) {
$tags = preg_split('/[,\s]+/', $q['tag']);
foreach ( (array) $tags as $tag ) {
$tag = sanitize_term_field('slug', $tag, 0, 'post_tag', 'db');
$q['tag_slug__in'][] = $tag;
}
} else if ( preg_match('/[+\s]+/', $q['tag']) || !empty($q['cat']) ) {
$tags = preg_split('/[+\s]+/', $q['tag']);
foreach ( (array) $tags as $tag ) {
$tag = sanitize_term_field('slug', $tag, 0, 'post_tag', 'db');
$q['tag_slug__and'][] = $tag;
}
} else {
$q['tag'] = sanitize_term_field('slug', $q['tag'], 0, 'post_tag', 'db');
$q['tag_slug__in'][] = $q['tag'];
}
// Tag stuff
if ( !empty($qv['tag_id']) ) {
$tax_query[] = array(
'taxonomy' => 'post_tag',
'terms' => $qv['tag_id'],
'operator' => 'IN',
'field' => 'term_id'
);
}
if ( !empty($q['category__in']) || !empty($q['meta_key']) || !empty($q['tag__in']) || !empty($q['tag_slug__in']) ) {
$groupby = "{$wpdb->posts}.ID";
}
if ( !empty($q['tag__in']) && empty($q['cat']) ) {
$join = " INNER JOIN $wpdb->term_relationships ON ($wpdb->posts.ID = $wpdb->term_relationships.object_id) INNER JOIN $wpdb->term_taxonomy ON ($wpdb->term_relationships.term_taxonomy_id = $wpdb->term_taxonomy.term_taxonomy_id) ";
$whichcat .= " AND $wpdb->term_taxonomy.taxonomy = 'post_tag' ";
$include_tags = "'" . implode("', '", $q['tag__in']) . "'";
$whichcat .= " AND $wpdb->term_taxonomy.term_id IN ($include_tags) ";
$reqtag = term_exists( $q['tag__in'][0], 'post_tag' );
if ( !empty($reqtag) )
$q['tag_id'] = $reqtag['term_id'];
}
if ( !empty($q['tag_slug__in']) && empty($q['cat']) ) {
$join = " INNER JOIN $wpdb->term_relationships ON ($wpdb->posts.ID = $wpdb->term_relationships.object_id) INNER JOIN $wpdb->term_taxonomy ON ($wpdb->term_relationships.term_taxonomy_id = $wpdb->term_taxonomy.term_taxonomy_id) INNER JOIN $wpdb->terms ON ($wpdb->term_taxonomy.term_id = $wpdb->terms.term_id) ";
$whichcat .= " AND $wpdb->term_taxonomy.taxonomy = 'post_tag' ";
$include_tags = "'" . implode("', '", $q['tag_slug__in']) . "'";
$whichcat .= " AND $wpdb->terms.slug IN ($include_tags) ";
$reqtag = get_term_by( 'slug', $q['tag_slug__in'][0], 'post_tag' );
if ( !empty($reqtag) )
$q['tag_id'] = $reqtag->term_id;
if ( !empty($q['tag__in']) ) {
$tax_query[] = array(
'taxonomy' => 'post_tag',
'terms' => $q['tag__in'],
'operator' => 'IN',
'field' => 'term_id'
);
}
if ( !empty($q['tag__not_in']) ) {
$tag_string = "'" . implode("', '", $q['tag__not_in']) . "'";
$whichcat .= " AND $wpdb->posts.ID NOT IN ( SELECT tr.object_id FROM $wpdb->term_relationships AS tr INNER JOIN $wpdb->term_taxonomy AS tt ON tr.term_taxonomy_id = tt.term_taxonomy_id WHERE tt.taxonomy = 'post_tag' AND tt.term_id IN ($tag_string) )";
$tax_query[] = array(
'taxonomy' => 'post_tag',
'terms' => $q['tag__not_in'],
'operator' => 'NOT IN',
'field' => 'term_id'
);
}
// Tag and slug intersections.
$intersections = array('category__and' => 'category', 'tag__and' => 'post_tag', 'tag_slug__and' => 'post_tag', 'tag__in' => 'post_tag', 'tag_slug__in' => 'post_tag');
$tagin = array('tag__in', 'tag_slug__in'); // These are used to make some exceptions below
foreach ( $intersections as $item => $taxonomy ) {
if ( empty($q[$item]) ) continue;
if ( in_array($item, $tagin) && empty($q['cat']) ) continue; // We should already have what we need if categories aren't being used
if ( !empty( $tax_query ) ) {
$this->tax_query = $tax_query;
if ( $item != 'category__and' ) {
$reqtag = term_exists( $q[$item][0], 'post_tag' );
if ( !empty($reqtag) )
$q['tag_id'] = $reqtag['term_id'];
}
if ( in_array( $item, array('tag_slug__and', 'tag_slug__in' ) ) )
$taxonomy_field = 'slug';
else
$taxonomy_field = 'term_id';
$q[$item] = array_unique($q[$item]);
$tsql = "SELECT p.ID FROM $wpdb->posts p INNER JOIN $wpdb->term_relationships tr ON (p.ID = tr.object_id) INNER JOIN $wpdb->term_taxonomy tt ON (tr.term_taxonomy_id = tt.term_taxonomy_id) INNER JOIN $wpdb->terms t ON (tt.term_id = t.term_id)";
$tsql .= " WHERE tt.taxonomy = '$taxonomy' AND t.$taxonomy_field IN ('" . implode("', '", $q[$item]) . "')";
if ( !in_array($item, $tagin) ) { // This next line is only helpful if we are doing an and relationship
$tsql .= " GROUP BY p.ID HAVING count(p.ID) = " . count($q[$item]);
}
$post_ids = $wpdb->get_col($tsql);
if ( count($post_ids) )
$whichcat .= " AND $wpdb->posts.ID IN (" . implode(', ', $post_ids) . ") ";
else {
$whichcat = " AND 0 = 1";
break;
}
$where .= " AND $wpdb->posts.ID IN( " . implode( ', ', wp_tax_query( $tax_query ) ) . ")";
}
// Taxonomies
if ( $this->is_tax ) {
if ( '' != $q['taxonomy'] ) {
$taxonomy = $q['taxonomy'];
$tt[$taxonomy] = $q['term'];
} else {
foreach ( $GLOBALS['wp_taxonomies'] as $taxonomy => $t ) {
if ( $t->query_var && '' != $q[$t->query_var] ) {
$tt[$taxonomy] = $q[$t->query_var];
break;
}
}
}
$terms = get_terms($taxonomy, array('slug' => $tt[$taxonomy], 'hide_empty' => !is_taxonomy_hierarchical($taxonomy)));
if ( is_wp_error($terms) || empty($terms) ) {
$whichcat = " AND 0 ";
} else {
foreach ( $terms as $term ) {
$term_ids[] = $term->term_id;
if ( is_taxonomy_hierarchical($taxonomy) ) {
$children = get_term_children($term->term_id, $taxonomy);
$term_ids = array_merge($term_ids, $children);
}
}
$post_ids = get_objects_in_term($term_ids, $taxonomy);
if ( !is_wp_error($post_ids) && !empty($post_ids) ) {
$whichcat .= " AND $wpdb->posts.ID IN (" . implode(', ', $post_ids) . ") ";
if ( empty($post_type) ) {
$post_type = 'any';
$post_status_join = true;
} elseif ( in_array('attachment', (array)$post_type) ) {
$post_status_join = true;
}
} else {
$whichcat = " AND 0 ";
}
}
if ( !empty($q['meta_key']) ) {
$groupby = "{$wpdb->posts}.ID";
}
// Author/user stuff
@ -2033,7 +1983,7 @@ class WP_Query {
$whichmimetype = wp_post_mime_type_where($q['post_mime_type'], $table_alias);
}
$where .= $search . $whichcat . $whichauthor . $whichmimetype;
$where .= $search . $whichauthor . $whichmimetype;
if ( empty($q['order']) || ((strtoupper($q['order']) != 'ASC') && (strtoupper($q['order']) != 'DESC')) )
$q['order'] = 'DESC';
@ -2625,27 +2575,13 @@ class WP_Query {
$this->queried_object = NULL;
$this->queried_object_id = 0;
if ( $this->is_category ) {
$cat = $this->get('cat');
$category = &get_category($cat);
if ( is_wp_error( $category ) )
return NULL;
$this->queried_object = &$category;
$this->queried_object_id = (int) $cat;
} elseif ( $this->is_tag ) {
$tag_id = $this->get('tag_id');
$tag = &get_term($tag_id, 'post_tag');
if ( is_wp_error( $tag ) )
return NULL;
$this->queried_object = &$tag;
$this->queried_object_id = (int) $tag_id;
} elseif ( $this->is_tax ) {
$tax = $this->get('taxonomy');
$slug = $this->get('term');
$term = &get_terms($tax, array( 'slug' => $slug, 'hide_empty' => false ) );
if ( is_wp_error($term) || empty($term) )
return NULL;
$term = $term[0];
if ( $this->tax_query ) {
$query = reset( $this->tax_query );
if ( 'term_id' == $query['field'] )
$term = get_term( reset( $query['terms'] ), $query['taxonomy'] );
else
$term = get_term_by( $query['field'], reset( $query['terms'] ), $query['taxonomy'] );
$this->queried_object = $term;
$this->queried_object_id = $term->term_id;
} elseif ( $this->is_posts_page ) {

128
wp-includes/taxonomy.php
View File

@ -23,12 +23,12 @@ function create_initial_taxonomies() {
'public' => true,
'show_ui' => true,
'_builtin' => true,
) ) ;
) );
register_taxonomy( 'post_tag', 'post', array(
'hierarchical' => false,
'update_count_callback' => '_update_post_term_count',
'query_var' => false,
'query_var' => 'tag',
'rewrite' => false,
'public' => true,
'show_ui' => true,
@ -432,43 +432,125 @@ function register_taxonomy_for_object_type( $taxonomy, $object_type) {
* @uses $wpdb
* @uses wp_parse_args() Creates an array from string $args.
*
* @param int|array $term_ids Term id or array of term ids of terms that will be used
* @param mixed $terms Term id/slug/name or array of such to match against
* @param string|array $taxonomies String of taxonomy name or Array of string values of taxonomy names
* @param array|string $args Change the order of the object_ids, either ASC or DESC
* @return WP_Error|array If the taxonomy does not exist, then WP_Error will be returned. On success
* the array can be empty meaning that there are no $object_ids found or it will return the $object_ids found.
* @param array|string $args
* 'include_children' bool Wether to include term children (hierarchical taxonomies only)
* 'field' string Which term field is being used. Can be 'term_id', 'slug' or 'name'
* 'operator' string Can be 'IN' and 'NOT IN'
* 'do_query' bool Wether to execute the query or return the SQL string
*
* @return WP_Error If the taxonomy does not exist
* @return array The list of found object_ids
* @return string The SQL string, if do_query is set to false
*/
function get_objects_in_term( $term_ids, $taxonomies, $args = array() ) {
function get_objects_in_term( $terms, $taxonomies, $args = array() ) {
global $wpdb;
if ( ! is_array( $term_ids ) )
$term_ids = array( $term_ids );
extract( wp_parse_args( $args, array(
'include_children' => false,
'field' => 'term_id',
'operator' => 'IN',
'do_query' => true,
) ), EXTR_SKIP );
if ( ! is_array( $taxonomies ) )
$taxonomies = array( $taxonomies );
$taxonomies = (array) $taxonomies;
foreach ( (array) $taxonomies as $taxonomy ) {
foreach ( $taxonomies as $taxonomy ) {
if ( ! taxonomy_exists( $taxonomy ) )
return new WP_Error( 'invalid_taxonomy', __( 'Invalid Taxonomy' ) );
return new WP_Error( 'invalid_taxonomy', sprintf( __( 'Invalid Taxonomy: %s' ), $taxonomy ) );
}
$defaults = array( 'order' => 'ASC' );
$args = wp_parse_args( $args, $defaults );
extract( $args, EXTR_SKIP );
$terms = array_unique( (array) $terms );
if ( empty($terms) )
continue;
$order = ( 'desc' == strtolower( $order ) ) ? 'DESC' : 'ASC';
if ( !in_array( $field, array( 'term_id', 'slug', 'name' ) ) )
$field = 'term_id';
$term_ids = array_map('intval', $term_ids );
if ( !in_array( $operator, array( 'IN', 'NOT IN' ) ) )
$operator = 'IN';
$taxonomies = "'" . implode( "', '", $taxonomies ) . "'";
$term_ids = "'" . implode( "', '", $term_ids ) . "'";
$object_ids = $wpdb->get_col("SELECT tr.object_id FROM $wpdb->term_relationships AS tr INNER JOIN $wpdb->term_taxonomy AS tt ON tr.term_taxonomy_id = tt.term_taxonomy_id WHERE tt.taxonomy IN ($taxonomies) AND tt.term_id IN ($term_ids) ORDER BY tr.object_id $order");
switch ( $field ) {
case 'term_id':
$terms = array_map( 'intval', $terms );
if ( ! $object_ids )
return array();
if ( is_taxonomy_hierarchical( $taxonomy ) && $include_children ) {
$children = $terms;
foreach ( $terms as $term )
$children = array_merge( $children, get_term_children( $term, $taxonomy ) );
$terms = $children;
}
return $object_ids;
$terms = implode( ',', $terms );
$sql = "
SELECT object_id
FROM $wpdb->term_relationships
INNER JOIN $wpdb->term_taxonomy USING (term_taxonomy_id)
WHERE taxonomy IN ($taxonomies)
AND term_id $operator ($terms)
";
break;
case 'slug':
case 'name':
foreach ( $terms as $i => $term ) {
$terms[$i] = sanitize_term_field('slug', $term, 0, $taxonomy, 'db');
}
$terms = array_filter($terms);
$terms = "'" . implode( "','", $terms ) . "'";
$sql = "
SELECT object_id
FROM $wpdb->term_relationships
INNER JOIN $wpdb->term_taxonomy USING (term_taxonomy_id)
INNER JOIN $wpdb->terms USING (term_id)
WHERE taxonomy IN ($taxonomies)
AND $field $operator ($terms)
";
break;
}
if ( !$do_query )
return $sql;
return $wpdb->get_col( $sql );
}
/*
* Retrieve object_ids matching one or more taxonomy queries
*
* @since 3.1.0
*
* @param array $queries A list of taxonomy queries. A query is an associative array:
* 'taxonomy' string|array The taxonomy being queried
* 'terms' string|array The list of terms
* 'field' string Which term field is being used. Can be 'term_id', 'slug' or 'name'
* 'operator' string Can be 'IN' and 'NOT IN'
*
* @return array|WP_Error List of matching object_ids; WP_Error on failure.
*/
function wp_tax_query( $queries ) {
global $wpdb;
$sql = array();
foreach ( $queries as $query ) {
if ( !isset( $query['include_children'] ) )
$query['include_children'] = true;
$query['do_query'] = false;
$sql[] = get_objects_in_term( $query['terms'], $query['taxonomy'], $query );
}
if ( 1 == count( $sql ) )
return $wpdb->get_col( $sql[0] );
$r = "SELECT object_id FROM $wpdb->term_relationships WHERE 1=1";
foreach ( $sql as $query )
$r .= " AND object_id IN ($query)";
return $wpdb->get_col( $r );
}
/**

7
wp-includes/theme.php
View File

@ -807,8 +807,11 @@ function get_category_template() {
* @return string
*/
function get_tag_template() {
$tag_id = absint( get_query_var('tag_id') );
$tag_name = get_query_var('tag');
global $wp_query;
$tag = $wp_query->get_queried_object();
$tag_name = $tag->slug;
$tag_id = $tag->term_id;
$templates = array();