Arsenalist
I’m using the Paginator library and right before calling Repo.paginate(), I print the query which is:
Query: #Ecto.Query<from c0 in Amplify.Models.ContestEntry,
where: c0.contest_id == ^"2", where: not is_nil(c0.prize_id),
order_by: [desc: c0.inserted_at]>
This makes sense to me, but when I call paginate, it executes:
SELECT ...
FROM "contest_entries" AS c0
WHERE (c0."contest_id" = $1) AND (NOT (c0."prize_id" IS NULL)) AND (c0."inserted_at" < $2)
ORDER BY c0."inserted_at" LIMIT $3 [2, ~U[2024-09-26 19:10:25Z], 4]
Notice that the executed ORDER BY does not have the DESC associated with it.
Could this be because I am passing before to paginator and it defaults to an ASC sort in that case when I really want a DESC sort? If so, how does Paginator handle traversing through a list sorted in reverse?
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Arsenalist
I’m not using limit/offset. I want to use cursor based paging.
Schultzer
If you’re just doing offset/limit or keyset why not just write it yourself?
Arsenalist
Thank you. I switched to Flop and am getting similar behaviour:
Query before being executed:
Flop parameters:
How I’m calling it:
Actual query that’s run:
I expect it to execute
ORDER BY c0."inserted_at" DESCbut it’s not adding the DESC part.arcyfelix
I believe Paginator has been abandoned, and it is generally recommended that you migrate your code to Flop.