Fetch the service problem summary of a host with less redundant code

refs #9864

modules/monitoring/application/controllers/ListController.php

@@ -121,19 +121,8 @@ class Monitoring_ListController extends Controller
             'host_last_check'   => $this->translate('Last Check')
         ), $query);
 
-        $summary = $this->backend->select()->from('Hostservicestatussummary', array(
-            'host_name',
-            'unhandled_service_count'
-        ));
-        $summary->addFilter($query->getFilter());
-        $this->setupSortControl(array(
-            'host_severity'     => $this->translate('Severity'),
-            'host_state'        => $this->translate('Current State'),
-            'host_display_name' => $this->translate('Hostname'),
-            'host_address'      => $this->translate('Address'),
-            'host_last_check'   => $this->translate('Last Check')
-        ), $summary);
-        $summary->limit($query->getLimit(), $query->getOffset());
+        $summary = $query->getQuery()->queryServiceProblemSummary();
+        $this->applyRestriction('monitoring/filter/objects', $summary);
         $this->view->summary = $summary->fetchPairs();
     }
 

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

@@ -449,4 +449,20 @@ SQL;
 
         return $group;
     }
-}
+
+    /**
+     * Query the service problem summary for all hosts of this query's result set
+     *
+     * @return  HostserviceproblemsummaryQuery
+     */
+    public function queryServiceProblemSummary()
+    {
+        return $this->createSubQuery('Hostserviceproblemsummary')
+            ->setHostStatusQuery($this)
+            ->columns(array(
+                'host_name',
+                'unhandled_service_count'
+            )
+        );
+    }
+}