#Primary
primary is simple gem/plugin that will help you ensure, that you have only one primary / default record in DB. Ie. your site can have multiple languages (stored in db), but only one of them is primary / default.
Instalation
Simply add gem 'primary' to your Gemfile.
After running bundle install you can mark model as acting as primary / default.
Usage
To your model (ie. Language) add is_primary column and declare models as beeing primary by adding is_primary declaration:
class Language < ActiveRecord::Base
is_primary
attr_accessible :language, :is_primary
end###Sample
Language.count
# => 0
lang_en = Language.create({:language=>'en'})
lang_en.is_primary
# => true
lang_de = Language.create({:language=>'de'})
lang_de.is_primary
# => false
lang_de.is_primary = true
lang_de.save
lang_de.is_primary
# => true
lang_en.reload
lang_en.is_primary
# => false###Possible options
is_primary :on=>'is_default', :scope=>'site_id'
:on => 'is_default' # use different column name
:scope => 'site_id' # scope default to different column - ie. you'll
# be able to define multiple languages per multiple
# sites and each site will have one default lang.
# Scope can be defined as array of params
:scope => ['site_id', 'language_code']
:scope => ['polymorphic_id', 'polymorphic_type']
:auto_primary_record => false # if you don't want primary record
# to be set automatically (default: true)##Requirements
Currently gem requires Rails 3.2, I'll have to check, if it works as desired with lower versions of Ruby.
##License
Project is distributed under general terms of MIT-LICENSE.