Monitoring/MenuRenderers: unify logic, perftuning

This reduces duplicate code, query will be fired only once right now.

fixes #7554

library/Icinga/Web/Menu/MonitoringMenuItemRenderer.php

@@ -0,0 +1,90 @@
+<?php
+// {{{ICINGA_LICENSE_HEADER}}}
+// {{{ICINGA_LICENSE_HEADER}}}
+
+namespace Icinga\Web\Menu;
+
+use Icinga\Module\Monitoring\Backend;
+use Icinga\Web\Menu;
+use Icinga\Web\Url;
+
+class MonitoringMenuItemRenderer implements MenuItemRenderer {
+
+    protected static $summary;
+
+    protected $columns = array();
+
+    protected static function summary($column = null)
+    {
+        if (self::$summary === null) {
+            self::$summary = Backend::createBackend()->select()->from(
+                'statusSummary',
+                array(
+                    'hosts_down_unhandled',
+                    'services_critical_unhandled'
+                )
+            )->getQuery()->fetchRow();
+        }
+
+        if ($column === null) {
+            return self::$summary;
+        } elseif (isset(self::$summary->$column)) {
+            return self::$summary->$column;
+        } else {
+            return null;
+        }
+    }
+
+    protected function getBadgeTitle()
+    {
+        $translations = array(
+            'hosts_down_unhandled'        => mt('monitoring', '%d unhandled hosts down'),
+            'services_critical_unhandled' => mt('monitoring', '%d unhandled services critical')
+        );
+
+        $titles = array();
+        $sum = $this->summary();
+
+        foreach ($this->columns as $col) {
+            if (isset($sum->$col) && $sum->$col > 0) {
+                $titles[] = sprintf($translations[$col], $sum->$col);
+            }
+        }
+
+        return implode(', ', $titles);
+    }
+
+    protected function countItems()
+    {
+        $sum = self::summary();
+        $count = 0;
+
+        foreach ($this->columns as $col) {
+            if (isset($sum->$col)) {
+                $count += $sum->$col;
+            }
+        }
+
+        return $count;
+    }
+
+    public function render(Menu $menu)
+    {
+        $count = $this->countItems();
+        $badge = '';
+        if ($count) {
+            $badge = sprintf(
+                '<div title="%s" class="badge-container"><span class="badge badge-critical">%s</span></div>',
+                $this->getBadgeTitle(),
+                $count
+            );
+        }
+        return sprintf(
+            '<a href="%s">%s%s%s</a>',
+            $menu->getUrl() ?: '#',
+            $menu->getIcon() ? '<img src="' . Url::fromPath($menu->getIcon()) . '" class="icon" /> ' : '',
+            htmlspecialchars($menu->getTitle()),
+            $badge
+        );
+    }
+}

library/Icinga/Web/Menu/ProblemMenuItemRenderer.php

@@ -1,39 +1,11 @@
 <?php
-// {{{ICINGA_LICENSE_HEADER}}}
-// {{{ICINGA_LICENSE_HEADER}}}
 
 namespace Icinga\Web\Menu;
 
-use Icinga\Module\Monitoring\Backend;
+class ProblemMenuItemRenderer extends MonitoringMenuItemRenderer
-use Icinga\Web\Menu;
+{
-use Icinga\Web\Url;
+    protected $columns = array(
-
+        'hosts_down_unhandled',
-class ProblemMenuItemRenderer implements MenuItemRenderer {
+        'services_critical_unhandled'
-
+    );
-    public function render(Menu $menu)
-    {
-        $statusSummary = Backend::createBackend()
-            ->select()->from(
-                'statusSummary',
-                array(
-                    'hosts_down_unhandled',
-                    'services_critical_unhandled'
-                )
-            )->getQuery()->fetchRow();
-        $unhandled = $statusSummary->hosts_down_unhandled + $statusSummary->services_critical_unhandled;
-        $badge = '';
-        if ($unhandled) {
-            $badge = sprintf(
-                '<div class="badge-container"><span class="badge badge-critical">%s</span></div>',
-                $unhandled
-            );
-        }
-        return sprintf(
-            '<a href="%s">%s%s %s</a>',
-            $menu->getUrl() ?: '#',
-            $menu->getIcon() ? '<img src="' . Url::fromPath($menu->getIcon()) . '" class="icon" /> ' : '',
-            htmlspecialchars($menu->getTitle()),
-            $badge
-        );
-    }
 }

library/Icinga/Web/Menu/UnhandledHostMenuItemRenderer.php

@@ -1,38 +1,12 @@
 <?php
-// {{{ICINGA_LICENSE_HEADER}}}
-// {{{ICINGA_LICENSE_HEADER}}}
 
 namespace Icinga\Web\Menu;
 
-use Icinga\Module\Monitoring\Backend;
 use Icinga\Web\Menu;
-use Icinga\Web\Url;
 
-class UnhandledHostMenuItemRenderer implements MenuItemRenderer {
+class UnhandledHostMenuItemRenderer extends MonitoringMenuItemRenderer
-
+{
-    public function render(Menu $menu)
+    protected $columns = array(
-    {
+        'hosts_down_unhandled',
-        $statusSummary = Backend::createBackend()
+    );
-            ->select()->from(
-                'statusSummary',
-                array(
-                    'hosts_down_unhandled'
-                )
-            )->getQuery()->fetchRow();
-        $badge = '';
-        if ($statusSummary->hosts_down_unhandled) {
-            $badge = sprintf(
-                '<div title="%s" class="badge-container"><span class="badge badge-critical">%s</span></div>',
-                t(sprintf('%d unhandled host problems', $statusSummary->hosts_down_unhandled)),
-                $statusSummary->hosts_down_unhandled
-            );
-        }
-        return sprintf(
-            '<a href="%s">%s%s %s</a>',
-            $menu->getUrl() ?: '#',
-            $menu->getIcon() ? '<img src="' . Url::fromPath($menu->getIcon()) . '" class="icon" /> ' : '',
-            htmlspecialchars($menu->getTitle()),
-            $badge
-        );
-    }
 }

library/Icinga/Web/Menu/UnhandledServiceMenuItemRenderer.php

@@ -1,38 +1,12 @@
 <?php
-// {{{ICINGA_LICENSE_HEADER}}}
-// {{{ICINGA_LICENSE_HEADER}}}
 
 namespace Icinga\Web\Menu;
 
-use Icinga\Module\Monitoring\Backend;
 use Icinga\Web\Menu;
-use Icinga\Web\Url;
 
-class UnhandledServiceMenuItemRenderer implements MenuItemRenderer {
+class UnhandledServiceMenuItemRenderer extends MonitoringMenuItemRenderer
-
+{
-    public function render(Menu $menu)
+    protected $columns = array(
-    {
+        'services_critical_unhandled'
-        $statusSummary = Backend::createBackend()
+    );
-            ->select()->from(
-                'statusSummary',
-                array(
-                    'services_critical_unhandled'
-                )
-            )->getQuery()->fetchRow();
-        $badge = '';
-        if ($statusSummary->services_critical_unhandled) {
-            $badge = sprintf(
-                '<div title="%s" class="badge-container"><span class="badge badge-critical">%s</span></div>',
-                t(sprintf('%d unhandled service problems', $statusSummary->services_critical_unhandled)),
-                $statusSummary->services_critical_unhandled
-            );
-        }
-        return sprintf(
-            '<a href="%s">%s%s %s</a>',
-            $menu->getUrl() ?: '#',
-            $menu->getIcon() ? '<img src="' . Url::fromPath($menu->getIcon()) . '" class="icon" /> ' : '',
-            htmlspecialchars($menu->getTitle()),
-            $badge
-        );
-    }
 }