monitoring: Rearrange code in the ContactQuery

refs #9956

modules/monitoring/library/Monitoring/Backend/Ido/Query/ContactQuery.php

@@ -97,23 +97,6 @@ class ContactQuery extends IdoQuery
         $this->joinedVirtualTables['contacts'] = true;
     }
 
-    /**
-     * Join timeperiods
-     */
-    protected function joinTimeperiods()
-    {
-        $this->select->joinLeft(
-            array('ht' => $this->prefix . 'timeperiods'),
-            'ht.timeperiod_object_id = c.host_timeperiod_object_id',
-            array()
-        );
-        $this->select->joinLeft(
-            array('st' => $this->prefix . 'timeperiods'),
-            'st.timeperiod_object_id = c.service_timeperiod_object_id',
-            array()
-        );
-    }
-
     /**
      * Join host groups
      */
@@ -155,6 +138,18 @@ class ContactQuery extends IdoQuery
         );
     }
 
+    /**
+     * Join instances
+     */
+    protected function joinInstances()
+    {
+        $this->select->join(
+            array('i' => $this->prefix . 'instances'),
+            'i.instance_id = c.instance_id',
+            array()
+        );
+    }
+
     /**
      * Join service groups
      */
@@ -197,13 +192,18 @@ class ContactQuery extends IdoQuery
     }
 
     /**
-     * Join instances
+     * Join time periods
      */
-    protected function joinInstances()
+    protected function joinTimeperiods()
     {
-        $this->select->join(
+        $this->select->joinLeft(
-            array('i' => $this->prefix . 'instances'),
+            array('ht' => $this->prefix . 'timeperiods'),
-            'i.instance_id = c.instance_id',
+            'ht.timeperiod_object_id = c.host_timeperiod_object_id',
+            array()
+        );
+        $this->select->joinLeft(
+            array('st' => $this->prefix . 'timeperiods'),
+            'st.timeperiod_object_id = c.service_timeperiod_object_id',
             array()
         );
     }