fixed some hidden bugs in our view components

backend/lib/View/Csv/Csv.php

@@ -21,7 +21,7 @@
 
 namespace Volkszaehler\View\Csv;
 
-class Csv extends \Volkszaehler\View\View {
+abstract class Csv extends \Volkszaehler\View\View {
 	protected $csv = array();
 	protected $header = array();
 	protected $footer = array();
@@ -40,8 +40,6 @@ class Csv extends \Volkszaehler\View\View {
 	}
 	
 	public function render() {
-		parent::render();
-		
 		foreach ($this->header as $line) {
 			echo $line . PHP_EOL;
 		}
@@ -57,6 +55,8 @@ class Csv extends \Volkszaehler\View\View {
 		foreach ($this->footer as $line) {
 			echo $line . PHP_EOL;
 		}
+		
+		parent::render();
 	}
 	
 	public function addDebug() {

backend/lib/View/JpGraph.php

@@ -115,7 +115,7 @@ class JpGraph extends View {
 		// Display the graph
 		$this->graph->Stroke();
 
-		$this->response->send();
+		parent::render();
 	}
 
 }

backend/lib/View/Json/Json.php

@@ -23,7 +23,7 @@ namespace Volkszaehler\View\Json;
 
 use Volkszaehler\Util;
 
-class Json extends \Volkszaehler\View\View {
+abstract class Json extends \Volkszaehler\View\View {
 	protected $json = array();
 
 	/*
@@ -39,9 +39,9 @@ class Json extends \Volkszaehler\View\View {
 	}
 
 	public function render() {
-		parent::render();
-
 		echo self::format(json_encode($this->json));
+		
+		parent::render();
 	}
 
 	protected static function format($json) {

backend/lib/View/Xml/Channel.php

@@ -58,4 +58,10 @@ class Channel extends Xml {
 			
 		$this->xml->appendChild($xmlChannel);
 	}
+	
+	public function render() {
+		$this->xmlRoot->appendChild($this->xml);
+		
+		parent::render();
+	}
 }

backend/lib/View/Xml/Group.php

@@ -22,6 +22,7 @@
 namespace Volkszaehler\View\Xml;
 
 class Group extends Xml {
+	protected $xml;
 	
 	public function __construct(\Volkszaehler\View\Http\Request $request, \Volkszaehler\View\Http\Response $response) {
 		parent::__construct($request, $response);
@@ -39,4 +40,10 @@ class Group extends Xml {
 			
 		$this->xml->appendChild($xmlGroup);
 	}
+	
+	public function render() {
+		$this->xmlRoot->appendChild($this->xml);
+		
+		parent::render();
+	}
 }

backend/lib/View/Xml/Xml.php

@@ -22,9 +22,8 @@
 namespace Volkszaehler\View\Xml;
 
 // TODO outdated
-class Xml extends \Volkszaehler\View\View {
+abstract class Xml extends \Volkszaehler\View\View {
 	protected $xmlDoc;
-	protected $xml;
 
 	public function __construct(\Volkszaehler\View\Http\Request $request, \Volkszaehler\View\Http\Response $response) {
 		parent::__construct($request, $response);
@@ -40,11 +39,10 @@ class Xml extends \Volkszaehler\View\View {
 	}
 
 	public function render() {
-		parent::render();
-		
 		$this->xmlDoc->appendChild($this->xmlRoot);
-		$this->xmlRoot->appendChild($this->xml);
 		echo $this->xmlDoc->saveXML();
+		
+		parent::render();
 	}
 
 	public function addException(\Exception $exception) {