74 lines
1.6 KiB
Elixir
74 lines
1.6 KiB
Elixir
defmodule Mobilizon.Storage.Repo.Migrations.CleanupAddresses do
|
|
use Ecto.Migration
|
|
|
|
def up do
|
|
# Make sure we don't have any duplicate addresses
|
|
rows = fetch_bad_rows()
|
|
Enum.each(rows, &process_row/1)
|
|
end
|
|
|
|
def down do
|
|
# No way down
|
|
end
|
|
|
|
defp fetch_bad_rows() do
|
|
%Postgrex.Result{rows: rows} =
|
|
Ecto.Adapters.SQL.query!(
|
|
Mobilizon.Storage.Repo,
|
|
"SELECT * FROM (
|
|
SELECT id, url,
|
|
ROW_NUMBER() OVER(PARTITION BY url ORDER BY id asc) AS Row
|
|
FROM addresses
|
|
) dups
|
|
WHERE dups.Row > 1;"
|
|
)
|
|
|
|
rows
|
|
end
|
|
|
|
defp process_row([id, url, _row]) do
|
|
first_id = find_first_address_id(url)
|
|
|
|
if id != first_id do
|
|
repair_events(id, first_id)
|
|
repair_actors(id, first_id)
|
|
delete_row(id)
|
|
end
|
|
end
|
|
|
|
defp find_first_address_id(url) do
|
|
%Postgrex.Result{rows: [[id]]} =
|
|
Ecto.Adapters.SQL.query!(
|
|
Mobilizon.Storage.Repo,
|
|
"SELECT id FROM addresses WHERE url = $1 order by id asc limit 1",
|
|
[url]
|
|
)
|
|
|
|
id
|
|
end
|
|
|
|
defp repair_events(id, first_id) do
|
|
Ecto.Adapters.SQL.query!(
|
|
Mobilizon.Storage.Repo,
|
|
"UPDATE events SET physical_address_id = $1 WHERE physical_address_id = $2",
|
|
[first_id, id]
|
|
)
|
|
end
|
|
|
|
defp repair_actors(id, first_id) do
|
|
Ecto.Adapters.SQL.query!(
|
|
Mobilizon.Storage.Repo,
|
|
"UPDATE actors SET physical_address_id = $1 WHERE physical_address_id = $2",
|
|
[first_id, id]
|
|
)
|
|
end
|
|
|
|
defp delete_row(id) do
|
|
Ecto.Adapters.SQL.query!(
|
|
Mobilizon.Storage.Repo,
|
|
"DELETE FROM addresses WHERE id = $1",
|
|
[id]
|
|
)
|
|
end
|
|
end
|