Don't double fetch, add force fetch option

Author: LucaScorpion

src/main/java/com/scorpiac/javarant/Rant.java

@@ -72,17 +72,30 @@ private static String getImage(JsonElement image) {
      * @return The comments.
      */
     public Comment[] getComments() {
-        if (comments == null)
-            fetchComments();
+        fetchComments();
         return comments;
     }
 
     /**
-     * Fetch and store the comments on this rant.
+     * Fetch and store the comments on this rant. If the comments are already fetched, they will not be fetched again.
      *
      * @return Whether the data was fetched successfully.
      */
     public boolean fetchComments() {
+        return fetchComments(false);
+    }
+
+    /**
+     * Fetch and store the comments on this rant.
+     *
+     * @param force Whether to fetch the data even if it was already fetched.
+     * @return Whether the data was fetched successfully.
+     */
+    public boolean fetchComments(boolean force) {
+        // Check if we already fetched and force is false.
+        if (comments != null && !force)
+            return true;
+
         // Rants url, rant id, app id.
         String url = String.format("%1$s/%2$d?app=%3$s", DevRant.API_RANTS_URL, this.getId(), DevRant.APP_ID);
         JsonObject json = DevRant.request(url);

src/main/java/com/scorpiac/javarant/User.java

@@ -90,12 +90,23 @@ static User fromJson(JsonObject json) {
     }
 
     /**
-     * Fetch the user data from the user profile.
+     * Fetch the user data from the user profile. If the data is already fetched, it will not be fetched again.
      *
      * @return Whether the data was fetched successfully.
      */
     public boolean fetchData() {
-        if (isFetched())
+        return fetchData(false);
+    }
+
+    /**
+     * Fetch the user data from the user profile.
+     *
+     * @param force Whether to fetch the data even if it was already fetched.
+     * @return Whether the data was fetched successfully.
+     */
+    public boolean fetchData(boolean force) {
+        // Check if we already fetched and force is false.
+        if (fetched && !force)
             return true;
 
         // Users url, user id, app id.