I'm curious whether you can define the :as option as a list of roles?
All the examples I have seen only has the :as linked to the single
role :admin.
How would I use this with a roles system?

Say I had a #current_user_roles method available from my Controller or
whatever.

def update
  Project.update_attributes(params[:project], :as =>
current_user_roles)
end

One possible DSL tweak allow something like this:

as_role current_user_roles do |role|
  role.update_attributes_of(Project).with params[:project]
  role.create(Project).with params[:project]
end

Here the #as_role should return some object that has the methods
#update_attributes #create and so on and a method/reader for the roles
to apply the role permission check.


On May 13, 2:00 am, Pan Thomakos <[email protected]> wrote:
> Hi,
>
> I think it's awesome that Rails 3.1 introduces the attribute accessible
> roles/permissions:
>
> class User
>   attr_accessible :name, :as => :admin
> end
>
> User.create(params[:user], :as => :admin)
>
> But would it be possible to make this a chained function as was done with
> find, where and
> scopes from Rails 2.x to Rails 3.0? Here's a little more on the
> topic<http://ablogaboutcode.com/2011/05/12/activerecord-3-1-mass-assignment...>.
> Maybe ARel could be
> leveraged to do this?
>
> I can see that there might be conflicts with user defined scopes, but isn't
> chaining functions
> just so much more elegant than passing multiple hash parameters to a
> function?
>
> Thanks,
> Pan

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