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 );
+}
+
 ?>