I think that you seem to get way to many classes for this now, with the wrapper stuff. Seems strange. :)
In my previous mail I didn't actually say one or two tables. You could have tables t_Needsdata1 with foreign key to t_Data, and t_Needsdata2, also with fk to t_Data. When you do the clone you mention, and the new instance of Data is saved, it will create a new row in the t_Data table. Some rows in t_Data are pointed to by t_Needsdata1, others by t_Needsdata2. And your object model remains clean from the "wrappers". /Oskar 2009/10/2 reflection <[email protected]>: > > Maybe it gets clearer if NeedsData2 is something like this: > > class NeedsData2 > { > public NeedsData1 { get; set; } > public NeedsData2DataWrapper { get; set; } > } > > NeedsData1 is the template to be used for NeedsData2. So I set > > NeedsData2DataWrapper.Data = NeedsData.NeedsData1DataWrapper.Data.Clone > (); //Clones the Data without the Id > > NeedsData2 now has the original template value > > NeedsData2.NeedsData1.NeedsData1DataWrapper.Data > > and the values the class itself can change > > NeedsData2.NeedsData2DataWrapper.Data > > I hope you get the point :) > > Greetings > Reflection > > > On 2 Okt., 12:53, reflection <[email protected]> wrote: >> Well I could have, but i would prefer to have the values for >> NeedsData1 in another table then NeedsData2. The background is that >> e.g. in NeedsData1 the DataClass is sort of a template and in >> NeedsData2 it is sort of instance of this template - actually I copy >> the values from the template to the instantiated version. >> I would like to separate the templates from the instantiated values... >> I think the Database Design would be clearer if I wouldn't mix those >> types. >> >> On 2 Okt., 12:14, Oskar Berggren <[email protected]> wrote: >> >> >> >> > Why can't you just let the table for NeedsData1/2 have a foreign key >> > referencing the Data table? >> >> > /Oskar >> >> > 2009/10/2 reflection <[email protected]>: >> >> > > Hello, >> >> > > How would you map the following Scencario? >> >> > > abstract class DataClass >> > > { >> > > public Int64 DataId { get; set; } >> > > } >> >> > > class DataInt: DataClass >> > > { >> > > public Int64 IntData { get; set; } >> > > } >> >> > > class DataString: DataClass >> > > { >> > > public String StringData { get; set; } >> > > } >> >> > > class NeedsData1 >> > > { >> > > public DataClass Data { get; set; } >> > > } >> >> > > class NeedsData2 >> > > { >> > > public DataClass Data { get; set; } >> > > } >> >> > > My Problem is that I don't know how to map such a scenarion. As you >> > > may have noticed there is no relationship from the child class >> > > (DataClass) to the parent class (NeedsData1/NeedsData2). >> >> > > I could do something like this: >> >> > > class NeedsData1DataWrapper >> > > { >> > > public NeedsData1 Parent { get; set; } >> > > public DataClass Data { get; set; } >> > > } >> >> > > class NeedsData1 >> > > { >> > > public NeedsData1DataWrapper { get; set; } >> > > } >> >> > > class NeedsData2DataWrapper >> > > { >> > > public NeedsData2 Parent { get; set; } >> > > public DataClass Data { get; set; } >> > > } >> >> > > class NeedsData2 >> > > { >> > > public NeedsData2DataWrapper { get; set; } >> > > } >> >> > > That would be an option, but DataClass will be mapped to one table. Is >> > > there a possibility to map it to two tables without copying the whole >> > > inheritance structure. My head's on fire as I'm thinking about this >> > > for a few days now and I can't get a nice solution. >> >> > > Any help appreciated =) Thanks in advance!!!! >> >> > > Greetings >> > > Reflection- Zitierten Text ausblenden - >> >> > - Zitierten Text anzeigen -- Zitierten Text ausblenden - >> >> - Zitierten Text anzeigen - > > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "nhusers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/nhusers?hl=en -~----------~----~----~----~------~----~------~--~---
