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Tag unions and intersections. fixes #4895

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git-svn-id: http://svn.automattic.com/wordpress/trunk@6021 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit is contained in:
ryan 2007-09-03 18:14:05 +00:00
parent 6cfdd1934b
commit 58c7ce91e3
2 changed files with 52 additions and 15 deletions
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4
wp-includes/classes.php
View File

@ -1,9 +1,9 @@
<?php
class WP {
var $public_query_vars = array('m', 'p', 'posts', 'w', 'cat', 'withcomments', 'withoutcomments', 's', 'search', 'exact', 'sentence', 'debug', 'calendar', 'page', 'paged', 'more', 'tb', 'pb', 'author', 'order', 'orderby', 'year', 'monthnum', 'day', 'hour', 'minute', 'second', 'name', 'category_name', 'tag', 'tag_id', 'feed', 'author_name', 'static', 'pagename', 'page_id', 'error', 'comments_popup', 'attachment', 'attachment_id', 'subpost', 'subpost_id', 'preview', 'robots');
var $public_query_vars = array('m', 'p', 'posts', 'w', 'cat', 'withcomments', 'withoutcomments', 's', 'search', 'exact', 'sentence', 'debug', 'calendar', 'page', 'paged', 'more', 'tb', 'pb', 'author', 'order', 'orderby', 'year', 'monthnum', 'day', 'hour', 'minute', 'second', 'name', 'category_name', 'tag', 'feed', 'author_name', 'static', 'pagename', 'page_id', 'error', 'comments_popup', 'attachment', 'attachment_id', 'subpost', 'subpost_id', 'preview', 'robots');
var $private_query_vars = array('offset', 'posts_per_page', 'posts_per_archive_page', 'what_to_show', 'showposts', 'nopaging', 'post_type', 'post_status', 'category__in', 'category__not_in', 'category__and', 'tag__in', 'tag__not_in', 'tag__and');
var $private_query_vars = array('offset', 'posts_per_page', 'posts_per_archive_page', 'what_to_show', 'showposts', 'nopaging', 'post_type', 'post_status', 'category__in', 'category__not_in', 'category__and', 'tag__in', 'tag__not_in', 'tag__and', 'tag_slug__in', 'tag_slug__and', 'tag_id');
var $extra_query_vars = array();
var $query_vars;

49
wp-includes/query.php
View File

@ -420,7 +420,7 @@ class WP_Query {
}
$array_keys = array('category__in', 'category__not_in', 'category__and',
'tag__in', 'tag__not_in', 'tag__and');
'tag__in', 'tag__not_in', 'tag__and', 'tag_slug__in', 'tag_slug__and');
foreach ( $array_keys as $key ) {
if ( !isset($array[$key]))
@ -608,6 +608,20 @@ class WP_Query {
$this->is_category = true;
}
if ( !is_array($qv['tag_slug__in']) || empty($qv['tag_slug__in']) ) {
$qv['tag_slug__in'] = array();
} else {
$qv['tag_slug__in'] = array_map('sanitize_title', $qv['tag_slug__in']);
$this->is_tag = true;
}
if ( !is_array($qv['tag_slug__and']) || empty($qv['tag_slug__amd']) ) {
$qv['tag_slug__and'] = array();
} else {
$qv['tag_slug__and'] = array_map('sanitize_title', $qv['tag_slug__and']);
$this->is_tag = true;
}
if ( empty($qv['author']) || ($qv['author'] == '0') ) {
$this->is_author = false;
} else {
@ -984,6 +998,20 @@ class WP_Query {
// 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']) ) {
$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');
$reqtag = is_term( $q['tag'], 'post_tag' );
if ( !empty($reqtag) )
$reqtag = $reqtag['term_id'];
@ -993,8 +1021,10 @@ class WP_Query {
$q['tag_id'] = $reqtag;
$q['tag__in'][] = $reqtag;
}
}
if ( !empty($q['tag__in']) || !empty($q['tag__not_in']) || !empty($q['tag__and']) ) {
if ( !empty($q['tag__in']) || !empty($q['tag__not_in']) || !empty($q['tag__and']) ||
!empty($q['tag_slug__in']) || !empty($q['tag_slug__and']) ) {
$groupby = "{$wpdb->posts}.ID";
}
@ -1005,6 +1035,13 @@ class WP_Query {
$whichcat .= " AND $wpdb->term_taxonomy.term_id IN ($include_tags) ";
}
if ( !empty($q['tag_slug__in']) ) {
$join = " LEFT JOIN $wpdb->term_relationships ON ($wpdb->posts.ID = $wpdb->term_relationships.object_id) LEFT JOIN $wpdb->term_taxonomy ON ($wpdb->term_relationships.term_taxonomy_id = $wpdb->term_taxonomy.term_taxonomy_id) LEFT 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) ";
}
if ( !empty($q['tag__not_in']) ) {
$ids = get_objects_in_term($q['tag__not_in'], 'post_tag');
if ( is_array($ids) && count($ids > 0) ) {
@ -1013,11 +1050,11 @@ class WP_Query {
}
}
if ( !empty($q['tag__and']) ) {
if ( !empty($q['tag_slug__and']) ) {
$count = 0;
foreach ( $q['tag__and'] as $tag_and ) {
$join .= " LEFT JOIN $wpdb->term_relationships AS tr$count ON ($wpdb->posts.ID = tr$count.object_id) LEFT JOIN $wpdb->term_taxonomy AS tt$count ON (tr$count.term_taxonomy_id = tt$count.term_taxonomy_id) ";
$whichcat .= " AND tt$count.term_id = '$tag_and' ";
foreach ( $q['tag_slug__and'] as $tag_and ) {
$join .= " LEFT JOIN $wpdb->term_relationships AS tr$count ON ($wpdb->posts.ID = tr$count.object_id) LEFT JOIN $wpdb->term_taxonomy AS tt$count ON (tr$count.term_taxonomy_id = tt$count.term_taxonomy_id) LEFT JOIN $wpdb->terms AS term$count ON (tt$count.term_id = term$count.term_id) ";
$whichcat .= " AND term$count.slug = '$tag_and' ";
$count++;
}
}