Module: MultiSite::ScopedValidation

Defined in:
lib/multi_site/scoped_validation.rb

Class Method Summary collapse

Class Method Details

.included(base) ⇒ Object 



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# File 'lib/multi_site/scoped_validation.rb', line 3

def self.included(base)

  base.class_eval do
    # scoping validations to the site should be very simple 
    # all you would normally need is something like this:
    #
    #   validates_uniqueness_of :email, :scope => :site_id
    #
    # but if you want to scope core trusty classes, you have a problem:
    # their uniqueness validations have already been declared
    # The only answer is to reach right back and change the validates_uniqueness_of method
    # and to make it more awkward, that has to happen so early that we can't reflect on the site association.
    # Hence the check for a site_id column. It's a hack, but a fairly harmless one.

    def validates_uniqueness_of_with_site(*attr)
      if table_exists? && column_names.include?('site_id')
        configuration = attr.extract_options!
        configuration[:scope] ||= :site_id
        attr.push(configuration)
      end
      validates_uniqueness_of_without_site(*attr)
    end

    alias_method_chain :validates_uniqueness_of, :site
  end
  
end