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I have an AO entity with lifecycle info like 'created' (Timestamp type) and a data entity that extends it. I want to use AO to retrieve the data entities, ordered with most recent dates first. If I try the following:
Query query=Query.select().order("created"); MyObj = aoService.find(MyObj.class,query);
I get: ERROR: column "created" does not exist Position: 58 at org.apache.velocity.runtime.parser.node.ASTMethod.execute(ASTMethod.java:251)
But, the table does have a Timestamp column, A bug possibly? Even if this worked, Im curious how I would indicate 'ascending' or 'descending' orders.
Anyone got an example to hand?
It looks like a case sensitivity issue to me. Some database are case sensitive, Postgres being one of them. And all table and column names converted by the AO plugin are upper case.
In your case I think simply changing your code to the following should work.
Hi Sam, I should have thought of that, upper casing worked. If AO coverts all columns to upper case, it would be a wrinkle removed if column operations shouldnt be case sensitive?
Andy, you should be able to do
Query.select().order("created asc") Query.select().order("created desc")
Try it, if that's not working then there may be a bug