Kieran
63 lines
1.7 KiB
Elixir
63 lines
1.7 KiB
Elixir
defmodule Pinchflat.Boot.DataBackfillWorker do
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@moduledoc false
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use Oban.Worker,
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queue: :local_metadata,
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unique: [period: :infinity, states: [:available, :scheduled, :retryable]],
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tags: ["media_item", "media_metadata", "local_metadata", "data_backfill"]
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# This one is going to be a little more self-contained
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# instead of relying on outside modules for the methods.
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# That's because, for now, these methods are not intended
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# to be used elsewhere.
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#
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# I'm just trying out that pattern and seeing if I like it better
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# so this may change.
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import Ecto.Query, warn: false
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require Logger
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alias __MODULE__
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alias Pinchflat.Repo
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@doc """
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Cancels all pending backfill jobs. Useful for ensuring worker runs immediately
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on app boot.
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Returns {:ok, integer()}
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"""
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def cancel_pending_backfill_jobs do
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Oban.Job
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|> where(worker: "Pinchflat.Boot.DataBackfillWorker")
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|> Oban.cancel_all_jobs()
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end
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@impl Oban.Worker
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@doc """
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Performs one-off tasks to get data in the right shape.
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This can be needed when we add new features or change the way
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we store data. Must be idempotent. All new data should already
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conform to the expected schema so this should only be needed
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for existing data. Still runs periodically to be safe.
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Returns :ok
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"""
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def perform(%Oban.Job{}) do
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Logger.info("Running data backfill worker")
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# Nothing to do for now - just reschedule
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# Keeping in-place because we _will_ need it in the future
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reschedule_backfill()
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:ok
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end
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defp reschedule_backfill do
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# Run hourly
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next_run_in = 60 * 60
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%{}
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|> DataBackfillWorker.new(schedule_in: next_run_in)
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|> Repo.insert_unique_job()
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end
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end
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