private object RecursivelyCreateDtoFromEntity(object entityToConvertInDto, bool ignoreId, Type convertToDtoTypeAsResult)
{
if (entityToConvertInDto == null)
{
return(null);
}
RegisterKnowMapping(convertToDtoTypeAsResult, entityToConvertInDto.GetType());
var result = Activator.CreateInstance(convertToDtoTypeAsResult);
foreach (var mapping in GetRegistedMapping(convertToDtoTypeAsResult))
{
if (mapping.DtoMapToEntityProperty.EntityPropertyNameToMap.Equals("Id"))
{
if (ignoreId)
{
continue;
}
}
if (!mapping.DtoMapToEntityProperty.ConvertToDto)
{
continue;
}
try
{
// prendo l' istanza presente nella proprietà corrente dell' entità da convertire
var pIstanceEntityPropertyValue = mapping.EntityPropertyInfo.GetValue(entityToConvertInDto, null);
//var pIstancePropertyValue = entityToConvertInDto.GetType().InvokeMember(mapping.DtoMapToEntityProperty.EntityPropertyNameToMap, BindingFlags.GetProperty, null, entityToConvertInDto, null);
if (pIstanceEntityPropertyValue == null)
{
continue;
}
var pIstanceEntityPropertyValueType = pIstanceEntityPropertyValue.GetType();
//... se è un generic... ed IList<IDto> che indica una relazione padre figlio 1;n ... vediamo se IList<T> oppure semplicmente un generic
if (IsAnIListOfGenericSpecification(pIstanceEntityPropertyValueType))
{
var dtoAsList = CreateIstanceFromGenericListType(mapping.DtoPropertyInfo.PropertyType);
// e ci aggiungo i figli
var istanceAsList = pIstanceEntityPropertyValue as IEnumerable;
foreach (var item in istanceAsList)
{
var dtoToAddToCollection = RecursivelyCreateDtoFromEntity(item, ignoreId, mapping.DtoMapToEntityProperty.GetTypeToUseFromMapToEntityProperty(convertToDtoTypeAsResult.Assembly));
dtoAsList.Add(dtoToAddToCollection);
}
mapping.DtoPropertyInfo.SetValue(result, dtoAsList, null);
}
else
{
if (pIstanceEntityPropertyValueType.IsGenericType)
{
ThrowEntityToDtoMappingException(String.Format("Entity property {0} is a generic type of {1}. Only IList<T> generics are supported.",
mapping.DtoMapToEntityProperty.EntityPropertyNameToMap, pIstanceEntityPropertyValueType.Name));
}
if (mapping.DtoMapToEntityProperty.HasEntityPropertyToInvoke())
{
object propertyValue = pIstanceEntityPropertyValueType.InvokeMember(mapping.DtoMapToEntityProperty.EntityPropertyToInvoke, BindingFlags.GetProperty, null, pIstanceEntityPropertyValue, null);
mapping.DtoPropertyInfo.SetValue(result, propertyValue, null);
}
else
{
var convertedValue = ConverterManager.ConvertToDto(pIstanceEntityPropertyValue, mapping.DtoMapToEntityProperty.ConvertToDtoMechanism, mapping.DtoPropertyInfo.PropertyType);
mapping.DtoPropertyInfo.SetValue(result, convertedValue, null);
}
}
}
catch (Exception ex)
{
ThrowEntityToDtoMappingException(String.Format("cannot map Entity {0} into DTO {1}. A generic error occured!. Check MapToEntityProperty attribute of your Dto. Details: {2}",
mapping.DtoMapToEntityProperty.EntityPropertyNameToMap, mapping.DtoPropertyInfo.Name, ex.Message));
}
}
return(result);
}