fixes+improvements

src/main/java/de/bstly/board/businesslogic/CommentManager.java

@@ -182,4 +182,28 @@ public class CommentManager {
 		return upvotes - downvotes;
 	}
 
+	/**
+	 * 
+	 * @param comment
+	 */
+	public void delete(Comment comment) {
+		for (Comment subcomment : commentRepository.findAll(qComment.parent.eq(comment.getId()))) {
+			delete(subcomment);
+		}
+
+		voteManager.deleteByTarget(comment.getId(), Types.comment);
+
+		commentRepository.delete(comment);
+	}
+
+	/**
+	 * 
+	 * @param target
+	 */
+	public void deleteByTarget(Long target) {
+		for (Comment comment : commentRepository.findAll(qComment.target.eq(target))) {
+			delete(comment);
+		}
+	}
+
 }