gitlab-org--gitlab-foss/app/services/ci/update_instance_variables_service.rb

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# frozen_string_literal: true
# This class is a simplified version of assign_nested_attributes_for_collection_association from ActiveRecord
# https://github.com/rails/rails/blob/v6.0.2.1/activerecord/lib/active_record/nested_attributes.rb#L466
module Ci
class UpdateInstanceVariablesService
UNASSIGNABLE_KEYS = %w(id _destroy).freeze
def initialize(params)
@params = params[:variables_attributes]
end
def execute
instantiate_records
persist_records
end
def errors
@records.to_a.flat_map { |r| r.errors.full_messages }
end
private
attr_reader :params
def existing_records_by_id
@existing_records_by_id ||= Ci::InstanceVariable
.all
.index_by { |var| var.id.to_s }
end
def instantiate_records
@records = params.map do |attributes|
find_or_initialize_record(attributes).tap do |record|
record.assign_attributes(attributes.except(*UNASSIGNABLE_KEYS))
record.mark_for_destruction if has_destroy_flag?(attributes)
end
end
end
def find_or_initialize_record(attributes)
id = attributes[:id].to_s
if id.blank?
Ci::InstanceVariable.new
else
existing_records_by_id.fetch(id) { raise ActiveRecord::RecordNotFound }
end
end
def persist_records
Ci::InstanceVariable.transaction do
success = @records.map do |record|
if record.marked_for_destruction?
record.destroy
else
record.save
end
end.all?
raise ActiveRecord::Rollback unless success
success
end
end
def has_destroy_flag?(hash)
Gitlab::Utils.to_boolean(hash['_destroy'])
end
end
end