ADO.NET :: How To Get Working Properly In EF 4.0
Aug 26, 2010
I am trying to create an Abstract class that looks like the following (note that I coded it right inline here so it may not compile):
[Code]....
I want to (in my edmx design) be able to inherit from EntityBase and have each of those 6 columns be added to the physical database table representing the object that inherits it. So, for example, I have a class called Test that would look like this:
[Code]....
That Test class should have its physical data store mapping based on the other "stuff" plus the properties inherited from EntityBase. Thus, the database table for Test needs to also include those 6 columns from EntityBase. However, I'd like for it to be set up in a way so that they get mapped such that in the edmx design (what is that designer called anyway) when an entity inherits from the EntityBase, I don't need to do any further work to propogate those 6 columns over to the underlying database table. Am I making sense in how I am explaining this? how to accomplish this?
On a side note (and this can be answered separately or not at all) assuming this mapping is in place, NHibernate has a concept called an Interceptor. I'd like to add an "interceptor" to the delete function of any entity that is inherited from EntityBase so that it updates DeletedAt with the current time and DeletedBy with the current user and the same would be true for any updates with UpdatedAt/By. With NHibernate, you can test inside of this interceptor whether or not the object is of a certain type (e.g. object is EntityBase). Any ideas on how to get this with EF 4.0?
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