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# frozen_string_literal: true
module Admin
class BackgroundMigrationsController < ApplicationController
feature_category :database
urgency :low
around_action :support_multiple_databases
def index
@relations_by_tab = {
'queued' => batched_migration_class.queued.queue_order,
'finalizing' => batched_migration_class.finalizing.queue_order,
'failed' => batched_migration_class.with_status(:failed).queue_order,
'finished' => batched_migration_class.with_status(:finished).queue_order.reverse_order
}
@current_tab = @relations_by_tab.key?(safe_params[:tab]) ? safe_params[:tab] : 'queued'
@migrations = @relations_by_tab[@current_tab].page(pagination_params[:page])
@successful_rows_counts = batched_migration_class.successful_rows_counts(@migrations.map(&:id))
@databases = Gitlab::Database.db_config_names(with_schema: :gitlab_shared)
end
def show
@migration = batched_migration_class.find(safe_params[:id])
@failed_jobs = @migration.batched_jobs.with_status(:failed).page(pagination_params[:page])
end
def pause
migration = batched_migration_class.find(safe_params[:id])
migration.pause!
redirect_back fallback_location: { action: 'index' }
end
def resume
migration = batched_migration_class.find(safe_params[:id])
migration.execute!
redirect_back fallback_location: { action: 'index' }
end
def retry
migration = batched_migration_class.find(safe_params[:id])
migration.retry_failed_jobs! if migration.failed?
redirect_back fallback_location: { action: 'index' }
end
private
def support_multiple_databases
Gitlab::Database::SharedModel.using_connection(base_model.connection) do
yield
end
end
def base_model
@selected_database = safe_params[:database] || Gitlab::Database::MAIN_DATABASE_NAME
Gitlab::Database.database_base_models[@selected_database]
end
def batched_migration_class
@batched_migration_class ||= Gitlab::Database::BackgroundMigration::BatchedMigration
end
def safe_params
params.permit(:id, :database, :tab)
end
end
end
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