+ return getPost(postId, true);
+ }
+
+ /**
+ * Returns the post with the given ID, optionally creating a new post.
+ *
+ * @param postId
+ * The ID of the post to get
+ * @param create
+ * {@code true} it create a new post if no post with the given ID
+ * exists, {@code false} to return {@code null}
+ * @return The post, or {@code null} if there is no such post
+ */
+ public Post getPost(String postId, boolean create) {