/// <summary>
/// Delete an estate object.
/// </summary>
/// <param name="key">Key of object to delete.</param>
/// <returns>True if object was successfully deleted.</returns>
public static bool DeleteObject(int key)
{
if (DealCache.ContainsKey(key))
{
return false;
}
OrderCache.Query (new SqlFieldsQuery
($"delete from Orders where ObjectID={key};"));
BookmarkCache.Query (new SqlFieldsQuery
($"delete from Bookmarks where ObjectID={key};"));
MatchCache.Query (new SqlFieldsQuery
($"delete from Matches where ObjectID={key};"));
ObjectCache.Remove(key);
return true;
}