Oban worker for migrating posts to a new primary language setting.

This worker updates the primary_language metadata field for all posts in a publishing group that need migration. It processes posts in batches and broadcasts progress updates via PubSub.

Usage

# Enqueue a migration job
MigratePrimaryLanguageWorker.enqueue("docs", "en")

# Or with options
MigratePrimaryLanguageWorker.enqueue("docs", "en", user_id: 123)

Job Arguments

• group_slug - The publishing group slug
• primary_language - The new primary language to set
• user_id - User ID for audit trail (optional)

PubSub Events

The worker broadcasts the following events to posts_topic(group_slug):

• {:primary_language_migration_started, total_count} - Migration started
• {:primary_language_migration_progress, current, total} - Progress update
• {:primary_language_migration_completed, success_count, error_count} - Completed