I have a model in rails called campaign
, and another one called export
class Campaign < ActiveRecord::Base
has_one :export
end
class Export < ActiveRecord::Base
belongs_to :campaign
end
then I have code:
if campaign.export.nil?
campaign.create_export(:tag => 'newtag')
end
This code create new line for export again and again because campaign.export
is always nil
.
Why I created export by campaign.create_export()
, but campaign.export
is still nil
.
My guess here is that your validations for the export are preventing the creation of the export. If you call create_<model>
and the validations fail, it will have a copy of the model that was not saved with the validations