Introduce query ServicecommentdeletionhistoryQuery

refs #9009

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

@@ -0,0 +1,41 @@
+<?php
+/* Icinga Web 2 | (c) 2013-2015 Icinga Development Team | GPLv2+ */
+
+namespace Icinga\Module\Monitoring\Backend\Ido\Query;
+
+/**
+ * Query for service comment removal records
+ */
+class ServicecommentdeletionhistoryQuery extends ServicecommenthistoryQuery
+{
+    /**
+     * {@inheritdoc}
+     */
+    public function whereToSql($col, $sign, $expression)
+    {
+        if ($col === 'UNIX_TIMESTAMP(sch.deletion_time)') {
+            return 'sch.deletion_time ' . $sign . ' ' . $this->timestampForSql($this->valueToTimestamp($expression));
+        } else {
+            return parent::whereToSql($col, $sign, $expression);
+        }
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function joinBaseTables()
+    {
+        parent::joinBaseTables();
+        $this->select->where("sch.deletion_time > '1970-01-02 00:00:00'");
+        $this->columnMap['history']['timestamp'] = str_replace(
+            'comment_time',
+            'deletion_time',
+            $this->columnMap['history']['timestamp']
+        );
+        $this->columnMap['history']['type'] = str_replace(
+            'END)',
+            "END || '_deleted')",
+            $this->columnMap['history']['type']
+        );
+    }
+}