[Helma-user] difficult object relational mapping
Joshua Paine
joshua at papercrown.org
Wed Mar 5 19:23:43 CET 2008
Anton,
AFAIK, this isn't possible with Helma's ORM. Either add another column
to your entries table with the most recent update date (a small
denormalization that you might well end up making anyway for performance
reasons) or create and use a view that simulates a table like the above
with all the necessary triggers to make Helma's belief that it's a
genuine table not lead to disaster.
If you go the first route and add a column, you could keep it updated
either with a trigger pretty easily, I'd think. And you can mark it
read-only for Helma to ensure nothing tries to set it directly.
-Joshua
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