MDL-39024 fix MSSQL seek past the end of recordset

2013-04-09 01:59:43 +02:00
parent 0816f853fa
commit 239fb7ac41
1 changed files with 5 additions and 1 deletions
@@ -713,7 +713,11 @@ class mssql_native_moodle_database extends moodle_database {
        $this->query_end($result);

        if ($limitfrom) { // Skip $limitfrom records
-            mssql_data_seek($result, $limitfrom);
+            if (!@mssql_data_seek($result, $limitfrom)) {
+                // Nothing, most probably seek past the end.
+                mssql_free_result($result);
+                $result = null;
+            }
        }

        return $this->create_recordset($result);