IcingaServiceForm: show a warning and no...

...override details for blacklisted services

application/forms/IcingaServiceForm.php

@@ -32,15 +32,20 @@ class IcingaServiceForm extends DirectorObjectForm
 
     private $inheritedFrom;
 
+    /** @var bool|null */
+    private $blacklisted;
+
     public function setApplyGenerated(IcingaService $applyGenerated)
     {
         $this->applyGenerated = $applyGenerated;
+
         return $this;
     }
 
     public function setInheritedFrom($hostname)
     {
         $this->inheritedFrom = $hostname;
+
         return $this;
     }
 
@@ -61,6 +66,7 @@ class IcingaServiceForm extends DirectorObjectForm
 
         if ($this->host && $this->set) {
             $this->setupOnHostForSet();
+
             return;
         }
 
@@ -119,20 +125,29 @@ class IcingaServiceForm extends DirectorObjectForm
             return;
         }
 
+        if ($this->hasBeenBlacklisted()) {
+            $this->addHtml(
+                Html::tag(
+                    'p',
+                    ['class' => 'warning'],
+                    $this->translate('This Service has been blacklisted on this host')
+                ),
+                ['name' => 'HINT_blacklisted']
+            );
+            $group = null;
+            $this->addDeleteButton($this->translate('Restore'));
+            $this->setSubmitLabel(false);
+        } else {
             $this->addOverrideHint();
-
             $group = $this->getDisplayGroup('custom_fields');
-
             if ($group) {
                 $elements = $group->getElements();
                 $group->setElements([$this->getElement('inheritance_hint')]);
                 $group->addElements($elements);
-            $this->setSubmitLabel(
-                $this->translate('Override vars')
-            );
+                $this->setSubmitLabel($this->translate('Override vars'));
             } else {
                 $this->addElementsToGroup(
-                array('inheritance_hint'),
+                    ['inheritance_hint'],
                     'custom_fields',
                     20,
                     $this->translate('Hints regarding this service')
@@ -141,9 +156,6 @@ class IcingaServiceForm extends DirectorObjectForm
                 $this->setSubmitLabel(false);
             }
 
-        if ($this->hasBeenBlacklisted()) {
-            $this->addDeleteButton($this->translate('Restore'));
-        } else {
             $this->addDeleteButton($this->translate('Blacklist'));
         }
 
@@ -185,20 +197,24 @@ class IcingaServiceForm extends DirectorObjectForm
             return false;
         }
 
+        if ($this->blacklisted === null) {
             $host = $this->host;
             $service = $this->getFirstParent($this->object);
             $db = $this->db->getDbAdapter();
             if ($this->providesOverrides()) {
-            return 1 === (int) $db->fetchOne(
+                $this->blacklisted = 1 === (int)$db->fetchOne(
                         $db->select()->from('icinga_host_service_blacklist', 'COUNT(*)')
                             ->where('host_id = ?', $host->get('id'))
                             ->where('service_id = ?', $service->get('id'))
                     );
             } else {
-            return false;
+                $this->blacklisted = false;
             }
         }
 
+        return $this->blacklisted;
+    }
+
     /**
      * @param $object
      * @throws IcingaException