Module: Skr::Concerns::ImmutableModel::ClassMethods

Defined in:
lib/skr/concerns/immutable_model.rb

Instance Method Summary collapse

Instance Method Details

#is_immutable(options = {}) ⇒ Object

Once it’s created it may not be updated or destroyed.

Raises:

  • (ActiveRecord::ReadOnlyRecord) —

    if destroy, delete or save is called after it’s been created.



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# File 'lib/skr/concerns/immutable_model.rb', line 12

def is_immutable(options = {})

    options[:except] = [*options[:except]].map{|name| name.to_s } # make sure except is present and an array

    before_destroy do
        raise ActiveRecord::ReadOnlyRecord.new( "Can not destroy #{self.class.model_name}, only create is allowed" )
    end

    before_update do
        unless ( changes.keys - change_tracking_fields - options[:except] ).blank?
            raise ActiveRecord::ReadOnlyRecord.new(  "Can not update, only create #{self.class.model_name}" )
        end
    end

end