Changeset 7103 for trunk/wp-admin/includes/post.php

Timestamp:

02/29/2008 09:51:36 AM (18 years ago)

Author:

ryan

Message:

Post Edit Collision Detection from mdawaffe. fixes #6043

File:

• trunk/wp-admin/includes/post.php (modified) (2 diffs)

trunk/wp-admin/includes/post.php

@@ -19 +19 @@
                 $now = time();
                 $then = strtotime($post->post_date_gmt . ' +0000');
-                // Keep autosave_interval in sync with autosave-js.php.
-                $delta = apply_filters( 'autosave_interval', 120 ) / 2;
+                $delta = get_option( 'autosave_interval' ) / 2;
                 if ( ($now - $then) < $delta )
                         return $post_ID;
@@ -620 +619 @@
 }
 
+// false: not locked or locked by current user
+// int: user ID of user with lock
+function wp_check_post_lock( $post_id ) {
+        global $current_user;
+
+        if ( !$post = get_post( $post_id ) )
+                return false;
+
+        $lock = get_post_meta( $post->ID, '_edit_lock', true );
+        $last = get_post_meta( $post->ID, '_edit_last', true );
+
+        $time_window = apply_filters( 'wp_check_post_lock_window', get_option( 'autosave_interval' ) * 2 );
+
+        if ( $lock && $lock > time() - $time_window && $last != $current_user->ID )
+                return $last;
+        return false;
+}
+
+function wp_set_post_lock( $post_id ) {
+        global $current_user;
+        if ( !$post = get_post( $post_id ) )
+                return false;
+        if ( !$current_user || !$current_user->ID )
+                return false;
+        
+        $now = time();
+
+        if ( !add_post_meta( $post->ID, '_edit_lock', $now, true ) )
+                update_post_meta( $post->ID, '_edit_lock', $now );
+        if ( !add_post_meta( $post->ID, '_edit_last', $current_user->ID, true ) )
+                update_post_meta( $post->ID, '_edit_last', $current_user->ID );
+}
+
 ?>