Class: Gitlab::BackgroundMigration::AddNamespacesEmailsEnabledColumnData

Inherits:
BatchedMigrationJob show all
Defined in:
lib/gitlab/background_migration/add_namespaces_emails_enabled_column_data.rb

Overview

Iterates through the namespaces table and attempts to set the opposite of the value of the column “emails_disabled” to a new column in namespace_settings called emails_enabled

Defined Under Namespace

Classes: NamespaceSetting

Constant Summary

Constants inherited from BatchedMigrationJob

BatchedMigrationJob::DEFAULT_FEATURE_CATEGORY

Constants included from Database::DynamicModelHelpers

Database::DynamicModelHelpers::BATCH_SIZE

Instance Method Summary collapse

Methods inherited from BatchedMigrationJob

#batch_metrics, feature_category, #filter_batch, generic_instance, #initialize, job_arguments, job_arguments_count, operation_name, scope_to

Methods included from Database::DynamicModelHelpers

#define_batchable_model, #each_batch, #each_batch_range

Constructor Details

This class inherits a constructor from Gitlab::BackgroundMigration::BatchedMigrationJob

Instance Method Details

#perform ⇒ Object 



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# File 'lib/gitlab/background_migration/add_namespaces_emails_enabled_column_data.rb', line 17

def perform
  each_sub_batch do |sub_batch|
    plucked_list = sub_batch.where('NOT emails_disabled IS NULL').pluck(:id, :emails_disabled)
    next if plucked_list.empty?

    ApplicationRecord.connection.execute <<~SQL
            UPDATE namespace_settings
            SET emails_enabled= NOT subquery.emails_enabled
            FROM (SELECT * FROM (#{Arel::Nodes::ValuesList.new(plucked_list).to_sql}) AS updates(namespace_id, emails_enabled)) AS subquery
            WHERE namespace_settings.namespace_id=subquery.namespace_id
    SQL
  end
end