MDL-12893 fixed sorting of date fields in pg - credit goes to David; merged from MOODLE_19_STABLE

2008-04-16 15:48:47 +00:00
parent 6a5357f492
commit 88145e9d08
1 changed files with 12 additions and 1 deletions
@@ -113,7 +113,18 @@ class data_field_date extends data_field_base {
    }

    function get_sort_sql($fieldname) {
-        return 'CAST('.$fieldname.' AS unsigned)';
+         global $CFG;
+ 
+         switch ($CFG->dbfamily) {
+             case 'postgres':
+             case 'mssql':
+                 return 'CAST('.$fieldname.' AS bigint)';
+             case 'oracle':
+                 return 'TO_NUMBER('.$fieldname.')';
+             case 'mysql':
+             default:
+                 return 'CAST('.$fieldname.' AS signed)';
+         }
    }