Show error message when posting an invalid comment

When an internal server error occurs while creating or updating a
comment, display a proper error notification in the UI.

apps/comments/js/commentstabview.js

@@ -337,10 +337,10 @@
 					$comment.data('commentEl').remove();
 					$comment.remove();
 				},
-				error: function(msg) {
+				error: function() {
 					$loading.addClass('hidden');
 					$comment.removeClass('disabled');
-					OC.Notification.showTemporary(msg);
+					OC.Notification.showTemporary(t('comments', 'Error occurred while retrieving comment with id {id}', {id: commentId}));
 				}
 			});
 
@@ -388,12 +388,12 @@
 							.html(self._formatMessage(model.get('message')));
 						$row.remove();
 					},
-					error: function(msg) {
+					error: function() {
 						$submit.removeClass('hidden');
 						$loading.addClass('hidden');
 						$textArea.prop('disabled', false);
 
-						OC.Notification.showTemporary(msg);
+						OC.Notification.showTemporary(t('comments', 'Error occurred while updating comment with id {id}', {id: commentId}));
 					}
 				});
 			} else {
@@ -413,12 +413,12 @@
 						$loading.addClass('hidden');
 						$textArea.val('').prop('disabled', false);
 					},
-					error: function(msg) {
+					error: function() {
 						$submit.removeClass('hidden');
 						$loading.addClass('hidden');
 						$textArea.prop('disabled', false);
 
-						OC.Notification.showTemporary(msg);
+						OC.Notification.showTemporary(t('comments', 'Error occurred while posting comment'));
 					}
 				});
 			}

apps/dav/lib/Comments/CommentNode.php

@@ -185,7 +185,7 @@ class CommentNode implements \Sabre\DAV\INode, \Sabre\DAV\IProperties {
 				$msg = 'Message exceeds allowed character limit of ';
 				throw new BadRequest($msg . IComment::MAX_MESSAGE_LENGTH, 0, $e);
 			}
-			return false;
+			throw $e;
 		}
 	}
 

apps/dav/tests/unit/Comments/CommentsNodeTest.php

@@ -166,6 +166,10 @@ class CommentsNodeTest extends \Test\TestCase {
 		$this->assertTrue($this->node->updateComment($msg));
 	}
 
+	/**
+	 * @expectedException Exception
+	 * @expectedExceptionMessage buh!
+	 */
 	public function testUpdateCommentLogException() {
 		$msg = null;
 
@@ -198,7 +202,7 @@ class CommentsNodeTest extends \Test\TestCase {
 		$this->logger->expects($this->once())
 			->method('logException');
 
-		$this->assertFalse($this->node->updateComment($msg));
+		$this->node->updateComment($msg);
 	}
 
 	/**