Sorry wrong group, please ignore.
On Apr 7, 1:54 pm, Alan Heywood <[email protected]> wrote:
> I would like to get some feedback on the different ways of handling
> model integrity across entities.
>
> Take a security model containing users and groups as an example.
> Users are members of any number of groups. The administrator user is
> a special case, and should always be a member of all groups. Thus
> whenever a new group is created at runtime, we need to ensure that the
> administrator user is a member of this new group.
>
> Possible soultions:
>
> 1. Define a GroupService class that takes references to
> IRepository<Group> and IRepository<User>. Define a NewGroup method
> that creates the new group, and makes the administrator user a
> member. This is easy to implement but need but not foolproof.
>
> 2. Subscribe to the NHibernate pre-insert event for the User, and do
> the special processing here, probably using the GroupService
> instantiated via service locator. This seems like a more foolproof
> option.
>
> 3. Something else?
>
> What method are you using maintain your model integrity across
> entities?
>
> Cheers
> Alan
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