public void MapTo(object o)
{
var t = o.GetType();
var schema = Mapper.GetSchema(t);
Mapper.MapTo(DataReader, o, t, schema);
}
private T Read <T>(IDataReader rdr)
{
var undelyingType = Nullable.GetUnderlyingType(typeof(T));
var typeCode = Type.GetTypeCode(undelyingType ?? typeof(T));
// handle primitive single-value result
if (typeCode != TypeCode.Object || typeof(T) == typeof(object))
{
if (rdr.FieldCount == 1)
{
return(ChangeType <T>(rdr[0], typeCode));
}
else if (rdr.FieldCount > 1)
{
var firstFld = FirstFieldName;
var val = firstFld != null ? rdr[firstFld] : rdr[0];
return(ChangeType <T>(val, typeCode));
}
else
{
return(default(T));
}
}
// T is a dto
// special handling for dictionaries
var type = typeof(T);
if (type == typeof(IDictionary) || type == typeof(IDictionary <string, object>) || type == typeof(Dictionary <string, object>))
{
return((T)((object)ReadDictionary(rdr)));
}
// handle as poco model
if (CustomMappingHandler != null)
{
var mappingContext = new DataReaderMapperContext(DtoMapper, rdr, type);
var mapResult = CustomMappingHandler(mappingContext);
if (mapResult == null)
{
throw new NullReferenceException("Custom mapping handler returns null");
}
if (!(mapResult is T))
{
throw new InvalidCastException($"Custom mapping handler returns incompatible object type '{mapResult.GetType()}' (expected '{type}')");
}
return((T)mapResult);
}
return(DtoMapper.MapTo <T>(rdr));
}
