public static void Run()
{
var def = new EntityMappingDefinition <CustomerResult, Customer>("Customer");
// simple field mapping: same type on either end
def.From(z => z.Desc).To(z => z.Name);
def.From(z => z.Age).To(z => z.Age);
// To() end supports multiple layer of member expression such as z.Preference.Hobby
def.From(z => z.Leisure).To(z => z.Preference.Hobby);
// complex field mapping: intermediate transformation via Then(), in which transformation func GetLoyalty is called.
def.From(z => z.YearsWithUs).Then(GetLoyalty).To(z => z.Loyalty);
// define string representation through predefined Stringify() func. The end result will be a dictionary.
def.From(z => z.Account).To(z => z.Account).Stringify(z =>
$"AccountId:{z.AccountId}, AccountNumber:{z.AccountNumber}");
var customerResult = new CustomerResult
{
Desc = "Joe",
Leisure = "GO",
Age = 73,
YearsWithUs = 8,
Account = new Account
{
AccountId = 123,
AccountNumber = "978654321"
},
};
// covert from customerResult to customer
var customer = def.Convert(customerResult);
var stringResult = def.Stringify(customerResult);
// show how we copy the same type of object
var newCustomer = new Customer
{
Loyalty = Loyalty.Level1,
Account = new Account
{
AccountId = 125,
AccountNumber = "123456789"
},
Mobile = "0455467568"
};
// only copy defined properties of EntityMappingDefinition from converted customer to new customer object,
// other properties in existing object will be kept.
def.Copy(customer, newCustomer);
}
