Overriding the Deletion of Entities

Question

I need to store a file in conjunction with a database entry. How can I override the Remove method of the DbContext so that both the entry and file are deleted?

Couldn't you setup a trigger to do that for you? – M.Babcock Apr 09 '12 at 03:29 — M.Babcock, Apr 09 '12 at 03:29

score 1 · Accepted Answer · edited May 23 '17 at 11:56

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You can override the SaveChanges method, as described here: Entity Framework 4.1 DbContext Override SaveChanges to Audit Property Change

Just add your own case for removals of specific entity types.

edited May 23 '17 at 11:56

Community

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answered Apr 09 '12 at 03:29

lukiffer

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score 0 · Answer 2 · answered Apr 09 '12 at 03:32

I would create new class extending of DbSet which pushes all other things through to the base but with remove it does your file change as well. This should work fine with DBcontext. It also means you can have your FileAndDbSet<T> used for some entities and regular DbSet<T> for the ones you dont have files with

Overriding the Deletion of Entities

2 Answers2