/// <summary>
/// The <c>EditFunction</c> implementation method deserializes an incoming XML Argument <see cref="string"/> as a new <see cref="Function"/> object.
/// It invokes the <c>Update</c> method of <see cref="FunctionBusiness"/> with the newly deserialized <see cref="Function"/> object.
/// Finally, it returns the updated object unchanged as a serialized <see cref="string"/> of XML.
/// </summary>
/// <param name="aXmlArgument">XML Argument <see cref="string"/>.</param>
/// <returns><see cref="Function"/> as XML <see cref="string"/>.</returns>
/// <exception cref="ArgumentNullException">If <c>aXmlArgument</c> is <c>null</c>.</exception>
public static string EditFunction(FanKey aFanKey, string aXmlArgument)
{
if (aXmlArgument == null)
{
throw new ArgumentNullException("aXmlArgument of EditFunction");
}
Function vFunction = new Function();
vFunction = XmlUtils.Deserialize <Function>(aXmlArgument);
FunctionBusiness.Update(aFanKey, vFunction);
return(XmlUtils.Serialize <Function>(vFunction, true));
}
/// <summary>
/// The <c>AddFunction</c> implementation method deserializes an incoming XML Argument <see cref="string"/> as a new <see cref="Function"/> object.
/// It invokes the <c>Insert</c> method of <see cref="FunctionBusiness"/> with the newly deserialized <see cref="Function"/> object.
/// Finally, it returns the inserted object (now with an assigned Function Key) as a serialized <see cref="string"/> of XML.
/// </summary>
/// <param name="aXmlArgument">XML Argument <see cref="string"/>.</param>
/// <returns><see cref="Function"/> as XML <see cref="string"/>.</returns>
/// <exception cref="ArgumentNullException">If <c>aXmlArgument</c> is <c>null</c>.</exception>
public static string AddFunction(UserKey aUserKey, string aXmlArgument)
{
if (aXmlArgument == null)
{
throw new ArgumentNullException("aXmlArgument of AddFunction");
}
Function vFunction = new Function();
vFunction = XmlUtils.Deserialize <Function>(aXmlArgument);
FunctionBusiness.Insert(aUserKey, vFunction);
return(XmlUtils.Serialize <Function>(vFunction, true));
}
