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Clean up taxonomy queries in WP_Query. See #12891

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git-svn-id: https://develop.svn.wordpress.org/trunk@15613 602fd350-edb4-49c9-b593-d223f7449a82
This commit is contained in:
scribu
2010-09-13 16:44:14 +00:00
parent 3e1de4ae9a
commit 5c95616ce8
4 changed files with 210 additions and 188 deletions
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248
wp-includes/query.php
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@@ -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 ) {