Hi there, I'm not sure at all if this is a bug or it is the expected
behavior. I've been digging on the source code but I've been unable to find
why this happens.
As a very simple example consider a model Comment which has a many to one
association :author. I'm using #eager_graph to pick the author when
retrieving a list of statuses and it works just fine, the problem arises
when I try to retrieve a computed column out of the table schema:
This works fine:
Comment.select_append(Sequel.function(:to_epoch,
> :created_at).as(:epoch_ref)).all
>
> I, [2014-08-03T16:11:34.822226 #42612] INFO -- : (0.006656s) SELECT *,
> to_epoch("created_at") AS "epoch_ref" FROM "comments"
>
> [#<Comment @values={:id=>147134385426653, :author_id=>3, :body=>"Hello
> world!", :created_at=>2014-07-31 18:06:57 UTC, :updated_at=>2014-07-31
> 18:06:57 UTC, :to_epoch=>#<BigDecimal:104b76100,'0.1406830017
> 942663E10',27(27)>}>,...]
But when used together with #eager_graph the added epoch_ref column is
silently ignored:
Comment.eager_graph(:author).select_append(Sequel.function(:to_epoch,
> :comments__created_at).as(:epoch_ref)).all
[#<Comment @values={:id=>147134385426653, :author_id=>3, :body=>"Hello
> world!", :created_at=>2014-07-31 18:06:57 UTC, :updated_at=>2014-07-31
> 18:06:57 UTC}>...]
Any thoughts?
Thanks
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