/// <summary>
/// Adds a post to favorites
/// </summary>
/// <param name="post">a post</param>
/// <returns>true/false value indicating if added</returns>
public static bool Add(TravelPost post)
{
bool isAdded = false;
Favorites temp = RetrieveFavoritesFromSession();
if (!temp.IsExist(post))
{
temp.Add(post);
SendFavoritesToSession(temp);
isAdded = false;
}
return(isAdded);
}
