/// <summary>
/// Returns a string for 'Sort' parameter of Google Analytics query based on given lambda expression
/// </summary>
/// <typeparam name="T">Result object data type</typeparam>
/// <typeparam name="Tprop">Target field data type</typeparam>
/// <param name="expression">Lambda expression</param>
/// <param name="fieldsMap">The mapped set of Context model fields and Google Analytics fields</param>
/// <returns>String</returns>
public string Parse <T, Tprop>(Expression <Func <T, Tprop> > expression, FieldsMap fieldsMap)
{
string result = null;
MemberExpression memberExpression = expression.Body as MemberExpression;
if (memberExpression != null)
{
string propertyName = memberExpression.Member.Name;
result = fieldsMap.FindByResultObjectFieldName(propertyName).ContextModelMemberName;
}
return(result);
}