Ticket #25775: date.php.patch

date.php

@@ -151 +151 @@
         }
 
         /**
-         * Validates a column name parameter.
+         * Validates a column name parameter and prepends the appropriate $wpdb table name.
          *
          * @since 3.7.0
          * @access public
          *
          * @param string $column The user-supplied column name.
-         * @return string A validated column name value.
+         * @return string A validated column name value prepended by its $wpdb table name.
          */
         public function validate_column( $column ) {
+                global $wpdb;
                 $valid_columns = array(
                         'post_date', 'post_date_gmt', 'post_modified',
                         'post_modified_gmt', 'comment_date', 'comment_date_gmt'
@@ -174 +175 @@
                  */
                 if ( ! in_array( $column, apply_filters( 'date_query_valid_columns', $valid_columns ) ) )
                         $column = 'post_date';
-
+                
+                // Add our table prefix depending on what column we are looking at.
+                if ( 0 === strpos( $column, 'comment' ) )
+                          $column = "{$wpdb->comments}.{$column}";
+                else if ( 0 === strpos( $column, 'post' ) )
+                          $column = "{$wpdb->posts}.{$column}";
+                
                 return $column;
         }