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A foundation for building Elixir Phoenix apps — SaaS, social networks, ERP systems, marketplaces, and more
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Files
lib/phoenix_kit/migrations/postgres/v27.ex
defmodule PhoenixKit.Migrations.Postgres.V27 do
@moduledoc """
Migration V27: Add Oban tables for background job processing.
This migration creates Oban tables required for background job processing,
including file processing (storage system) and email handling.
## Changes
- Creates `oban_jobs` table for job queue management
- Creates `oban_peers` table for distributed coordination
- Adds indexes for efficient job processing
- Sets up Oban schema to latest version (uses Oban.Migration.up/1)
## Requirements
- PostgreSQL database
- Oban dependency (`{:oban, "~> 2.17"}`)
## Purpose
- Enable background job processing for:
- File variant generation (thumbnails, resizes)
- Video processing (transcoding, thumbnails)
- Email sending and tracking
- Metadata extraction (dimensions, duration, EXIF)
- Multi-bucket redundancy uploads
## Queue Configuration
After running this migration, configure Oban queues in config/config.exs:
config :phoenix_kit, Oban,
repo: MyApp.Repo,
queues: [
default: 10,
emails: 50,
file_processing: 20
],
plugins: [Oban.Plugins.Pruner]
## Notes
- Oban tables are created in the same schema prefix as PhoenixKit tables
- Uses Oban's latest schema version automatically (forward-compatible)
- Idempotent: Safe to run multiple times
"""
use Ecto.Migration
def up(%{prefix: prefix} = _opts) do
# Run Oban migrations to create required tables
# Uses latest Oban schema version automatically (forward-compatible)
Oban.Migration.up(prefix: prefix)
# Set version comment on phoenix_kit table for version tracking
execute "COMMENT ON TABLE #{prefix_table_name("phoenix_kit", prefix)} IS '27'"
end
def down(%{prefix: prefix} = _opts) do
# Remove Oban tables by downgrading to version 1 (minimum required version)
Oban.Migration.down(prefix: prefix, version: 1)
# Update version comment on phoenix_kit table to previous version
execute "COMMENT ON TABLE #{prefix_table_name("phoenix_kit", prefix)} IS '26'"
end
# Helper functions
defp prefix_table_name(table_name, nil), do: table_name
defp prefix_table_name(table_name, prefix), do: "#{prefix}.#{table_name}"
end