class SomeModel < ActiveRecord::Ba开发者_如何学Cse
named_scope :recent, lambda { { :conditions => ['created_at > ?', 1.week.ago] } }
end
I want to extend the AR::Base class to have this named_scope for all models, how I can do this ?
Create a new initializer file in config/initializers and then re-open ActiveRecord's Base
class to add the named scope:
module ActiveRecord
class Base
named_scope :recent, lambda {
{ :conditions => ['created_at > ?', 1.week.ago] }
}
end
end
—Of course you get a rather ugly error should you attempt to use this named scope on a model that doesn't have a created_at
attribute...
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