Replace low level $db->Concat() calls to Moodle sql_concat() cross-db alternative...

diff --git a/lib/statslib.php b/lib/statslib.php
index 36667a2ad63066ca578b65c80d92cebbda0cf5af..77b9695afd94237a9f4d306d154a96aa4abefe93 100644 (file)
--- a/lib/statslib.php
+++ b/lib/statslib.php
@@ -1017,33 +1017,33 @@ function stats_get_parameters($time,$report,$courseid,$mode,$roleid=0) {
         break;
 
     case STATS_REPORT_READS:
-        $param->fields = $db->Concat('timeend','roleid').' AS uniqueid, timeend, roleid, stat1 as line1';
+        $param->fields = sql_concat('timeend','roleid').' AS uniqueid, timeend, roleid, stat1 as line1';
         $param->fieldscomplete = true; // set this to true to avoid anything adding stuff to the list and breaking complex queries.
         $param->aggregategroupby = 'roleid';
         $param->stattype = 'activity';
         $param->crosstab = true;
         $param->extras = 'GROUP BY timeend,roleid,stat1';
         if ($courseid == SITEID) {
-            $param->fields = $db->Concat('timeend','roleid').' AS uniqueid, timeend, roleid, sum(stat1) as line1';
+            $param->fields = sql_concat('timeend','roleid').' AS uniqueid, timeend, roleid, sum(stat1) as line1';
             $param->extras = 'GROUP BY timeend,roleid';
         }
         break;
 
     case STATS_REPORT_WRITES:
-        $param->fields = $db->Concat('timeend','roleid').' AS uniqueid, timeend, roleid, stat2 as line1';
+        $param->fields = sql_concat('timeend','roleid').' AS uniqueid, timeend, roleid, stat2 as line1';
         $param->fieldscomplete = true; // set this to true to avoid anything adding stuff to the list and breaking complex queries.
         $param->aggregategroupby = 'roleid';
         $param->stattype = 'activity';
         $param->crosstab = true;
         $param->extras = 'GROUP BY timeend,roleid,stat2';
         if ($courseid == SITEID) {
-            $param->fields = $db->Concat('timeend','roleid').' AS uniqueid, timeend, roleid, sum(stat2) as line1';
+            $param->fields = sql_concat('timeend','roleid').' AS uniqueid, timeend, roleid, sum(stat2) as line1';
             $param->extras = 'GROUP BY timeend,roleid';
         }
         break;
 
     case STATS_REPORT_ACTIVITY:
-        $param->fields = $db->Concat('timeend','roleid').' AS uniqueid, timeend, roleid, sum(stat1+stat2) as line1';
+        $param->fields = sql_concat('timeend','roleid').' AS uniqueid, timeend, roleid, sum(stat1+stat2) as line1';
         $param->fieldscomplete = true; // set this to true to avoid anything adding stuff to the list and breaking complex queries.
         $param->aggregategroupby = 'roleid';
         $param->stattype = 'activity';