IcingaServiceForm: allow empty name for apply rule

application/forms/IcingaServiceForm.php

@@ -212,7 +212,7 @@ class IcingaServiceForm extends DirectorObjectForm
     {
         $this->addElement('text', 'object_name', array(
             'label'       => $this->translate('Name'),
-            'required'    => true,
+            'required'    => !$this->object()->isApplyRule(),
             'description' => $this->translate(
                 'Name for the Icinga service you are going to create'
             )

library/Director/Objects/DirectorActivityLog.php

@@ -29,6 +29,20 @@ class DirectorActivityLog extends DbObject
         'parent_checksum' => null,
     );
 
+    /**
+     * @codingStandardsIgnoreStart
+     */
+    protected function setObject_Name($name)
+    {
+        // @codingStandardsIgnoreEnd
+
+        if ($name === null) {
+            $name = '';
+        }
+
+        return $this->reallySet('object_name', $name);
+    }
+
     protected static function username()
     {
         if (Icinga::app()->isCli()) {

library/Director/Objects/IcingaHost.php

@@ -105,7 +105,7 @@ class IcingaHost extends IcingaObject
             if (substr($prop, -3) === '_id') {
                 $prop = substr($prop, 0, -3);
             }
-            
+
             $hostProperties[$prefix . $prop] = $prop;
         }
 

library/Director/Objects/IcingaService.php

@@ -133,6 +133,20 @@ class IcingaService extends IcingaObject
         return $this;
     }
 
+    /**
+     * @codingStandardsIgnoreStart
+     */
+    protected function setObject_Name($name)
+    {
+        // @codingStandardsIgnoreEnd
+
+        if ($name === null && $this->isApplyRule()) {
+            $name = '';
+        }
+
+        return $this->reallySet('object_name', $name);
+    }
+
     /**
      * Render host_id as host_name
      *
@@ -158,11 +172,16 @@ class IcingaService extends IcingaObject
             && !$this->hasBeenAssignedToHostTemplate()
             && $this->get('apply_for') !== null) {
 
+            $name = $this->getObjectName();
+            if ($name !== '') {
+                $name = ' ' . c::renderString($name);
+            }
+
             return sprintf(
-                "%s %s %s for (config in %s) {\n",
+                "%s %s%s for (config in %s) {\n",
                 $this->getObjectTypeName(),
                 $this->getType(),
-                c::renderString($this->getObjectName()),
+                $name,
                 $this->get('apply_for')
             );
         }