first commit

lib/Controller/Errors.php

@@ -0,0 +1,33 @@
+<?php
+
+namespace OCA\MyWiki\Controller;
+
+use Closure;
+
+use OCP\AppFramework\Http;
+use OCP\AppFramework\Http\DataResponse;
+
+use OCA\MyWiki\Service\NotFoundException;
+use OCA\MyWiki\Service\ReadOnlyException;
+
+
+trait Errors {
+
+    protected function handleNotFound (Closure $callback) {
+        try {
+            return new DataResponse($callback());
+        } catch(NotFoundException $e) {
+            $message = ['message' => $e->getMessage()];
+            return new DataResponse($message, Http::STATUS_NOT_FOUND);
+        }
+    }
+    protected function handleReadOnly (Closure $callback) {
+        try {
+            return new DataResponse($callback());
+        } catch(ReadOnlyException $e) {
+            $message = ['message' => $e->getMessage()];
+            return new DataResponse($message, Http::STATUS_NOT_FOUND);
+        }
+    }
+
+}