Changeset 5110 for trunk/wp-includes/post.php

Timestamp:

03/26/2007 07:28:29 AM (19 years ago)

Author:

matt

Message:

A backend interface for tagging.

File:

• trunk/wp-includes/post.php (modified) (5 diffs)

trunk/wp-includes/post.php

@@ -518 +518 @@
                 $comment_status  = apply_filters('comment_status_pre', $comment_status);
                 $ping_status     = apply_filters('ping_status_pre',    $ping_status);
+                $tags_input      = apply_filters('tags_input_pre',     $tags_input);
         }
 
@@ -652 +653 @@
         }
 
-        wp_set_post_categories($post_ID, $post_category);
+        wp_set_post_categories( $post_ID, $post_category );
+        wp_set_post_tags( $post_ID, $tags_input );
 
         if ( 'page' == $post_type ) {
@@ -770 +772 @@
 }
 
+function wp_set_post_tags( $post_id = 0, $tags = '' ) {
+        global $wpdb;
+        
+        $post_id = (int) $post_id;
+        
+        if ( !$post_id )
+                return false;
+
+        $tags = explode( ',', $tags );
+        foreach ( $tags as $tag ) {
+                $tag = trim( $tag );
+                if ( !$tag_slug = sanitize_title( $tag ) )
+                        continue; // discard
+                if ( !$tag_id = category_exists( $tag ) )
+                        $tag_id = wp_create_category( $tag );
+                $tag_ids[] = $tag_id;
+        }
+
+        $tag_ids = array_unique( $tag_ids );
+
+        // First the old tags
+        $old_tags = $wpdb->get_col("
+                SELECT category_id
+                FROM $wpdb->post2cat
+                WHERE post_id = '$post_id' AND rel_type = 'tag'");
+
+        if ( !$old_tags ) {
+                $old_tags = array();
+        } else {
+                $old_tags = array_unique( $old_tags );
+        }
+
+        // Delete any?
+        $delete_tags = array_diff( $old_tags, $tag_ids);
+        if ( $delete_tags ) {
+                foreach ( $delete_tags as $del ) {
+                        $wpdb->query("
+                                DELETE FROM $wpdb->post2cat
+                                WHERE category_id = '$del'
+                                        AND post_id = '$post_id'
+                                        AND rel_type = 'tag'
+                                ");
+                }
+        }
+
+        // Add any?
+        $add_tags = array_diff( $tag_ids, $old_tags );
+        if ( $add_tags ) {
+                foreach ( $add_tags as $new_tag ) {
+                        $new_tag = (int) $new_tag;
+                        if ( !empty($new_tag) )
+                                $wpdb->query("
+                                        INSERT INTO $wpdb->post2cat (post_id, category_id, rel_type) 
+                                        VALUES ('$post_id', '$new_tag', 'tag')");
+                }
+        }
+
+        // Update category counts.
+        $all_affected_tags = array_unique( array_merge( $tag_ids, $old_tags ) );
+        foreach ( $all_affected_tags as $tag_id ) {
+                $count = $wpdb->get_var( "SELECT COUNT(*) FROM $wpdb->post2cat, $wpdb->posts WHERE $wpdb->posts.ID=$wpdb->post2cat.post_id AND post_status = 'publish' AND post_type = 'post' AND category_id = '$tag_id' AND rel_type = 'tag'" );
+                $wpdb->query( "UPDATE $wpdb->categories SET tag_count = '$count' WHERE cat_ID = '$tag_id'" );
+                if ( $count == 0 )
+                        $wpdb->query( "UPDATE $wpdb->categories SET tag_count = '-1' WHERE cat_ID = '$tag_id'" );
+                clean_category_cache( $tag_id );
+                do_action( 'edit_category', $tag_id );
+                do_action( 'edit_tag', $tag_id );
+        }
+}
+
 function wp_set_post_categories($post_ID = 0, $post_categories = array()) {
         global $wpdb;
@@ -784 +856 @@
                 SELECT category_id
                 FROM $wpdb->post2cat
-                WHERE post_id = '$post_ID'");
+                WHERE post_id = '$post_ID' AND rel_type = 'category'");
 
         if (!$old_categories) {
@@ -821 +893 @@
         $all_affected_cats = array_unique(array_merge($post_categories, $old_categories));
         foreach ( $all_affected_cats as $cat_id ) {
-                $count = $wpdb->get_var("SELECT COUNT(*) FROM $wpdb->post2cat, $wpdb->posts WHERE $wpdb->posts.ID=$wpdb->post2cat.post_id AND post_status = 'publish' AND post_type = 'post' AND category_id = '$cat_id'");
+                $count = $wpdb->get_var("SELECT COUNT(*) FROM $wpdb->post2cat, $wpdb->posts WHERE $wpdb->posts.ID=$wpdb->post2cat.post_id AND post_status = 'publish' AND post_type = 'post' AND category_id = '$cat_id' AND rel_type = 'category'");
                 $wpdb->query("UPDATE $wpdb->categories SET category_count = '$count' WHERE cat_ID = '$cat_id'");
                 clean_category_cache($cat_id);