Claudio Ortolina
32 lines
651 B
Elixir
32 lines
651 B
Elixir
defmodule MusicLibrary.Batch do
|
|
alias MusicLibrary.Repo
|
|
|
|
require Logger
|
|
|
|
def run_on_all(queryable, label, fun) do
|
|
stream = Repo.stream(queryable, max_rows: 50)
|
|
|
|
Repo.transaction(
|
|
fn ->
|
|
Enum.reduce(stream, [], fn record, acc ->
|
|
case fun.(record) do
|
|
{:error, reason} ->
|
|
Logger.error(
|
|
"Failed to run function on #{label} #{record.id} with #{inspect(reason)}"
|
|
)
|
|
|
|
[record.id | acc]
|
|
|
|
:ok ->
|
|
acc
|
|
|
|
{:ok, _result} ->
|
|
acc
|
|
end
|
|
end)
|
|
end,
|
|
timeout: :infinity
|
|
)
|
|
end
|
|
end
|