monitoring: Add restrictable filter columns to the status summary

refs #9009

Reftest.php

@@ -0,0 +1,23 @@
+<?php
+
+class Test
+{
+    protected $filters = array();
+
+    public function work()
+    {
+        foreach ($this->getFilters() as $key => &$value) {
+            $value = 1;
+        }
+    }
+
+    public function &getFilters()
+    {
+        return $this->filters;
+    }
+}
+
+$x = new Test();
+$b =& $x->getFilters();
+$b[1] = 0;
+var_dump($b, $x->getFilters());die;

modules/monitoring/library/Monitoring/DataView/StatusSummary.php

@@ -96,4 +96,31 @@ class StatusSummary extends DataView
             'services_unknown_not_checked_on_problem_hosts'
         );
     }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getFilterColumns()
+    {
+        return array(
+            'host', 'host_alias', 'host_display_name', 'host_name',
+            'hostgroup', 'hostgroup_alias', 'hostgroup_name',
+            'service', 'service_description', 'service_display_name',
+            'servicegroup', 'servicegroup_alias', 'servicegroup_name'
+        );
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function isValidFilterTarget($column)
+    {
+        if ($column[0] === '_'
+            && preg_match('/^_(?:host|service)_/', $column)
+        ) {
+            return true;
+        } else {
+            return in_array($column, $this->getFilterColumns());
+        }
+    }
 }