Override default find conditions for model
Here is a little trick I use when I want to override a find method for a model, instead of adding the conditions option to my association. While I don’t think you should avoid using the conditions options in your associations, this will provide an alternative:
class ModelName < ActiveRecord::Base
def self.find(*args)
with_scope(:find=>{ :conditions=>LIMIT_CONDITION }) do
super(*args)
end
end
end
Basically what is happening, is that you are overriding the default find function for a model, and wrapping its own find method with a with_scope call. So now every time you call Model.find(:all) or whatever options you want, it will execute it under that scope, with the conditions you specify.
What if you want to do for all the models i.e. for ActiveRecord::Base ??
Also, this does not work with associations.
So @blog.posts.find will still not retrieve only non-deleted posts even if above method is defined in posts model. How can we get over this ?
I will appreciate if you could please mail me the solution 🙂
Thanks. Just what I was looking for.
To answer AJ (a little late I know), you want to open up ActiveRecord::Base class (create a file in lib or an initializer then just do class ActiveRecord::Base) and alias the find method then use the code above and call the aliased method instead of super.
As for non-deleted in the example above you could just call ActiveRecord::Base.find directly but if you’ve aliased the method you’ll want to call that instead.