how can I create a before_filter

[davidslvto]

Hi,

How can I create a before_filter only for some actions?

Thank you

[latortuga]

Put it in a controller block. The code in a controller block is executed just as if it were inside a controller:

controller do
  before_filter :do_a_fancy_thing, :only => :index
end

If you want to have the before filter run before all active admin controllers/actions, you can put it in the AA initializer, there is clear documentation in the file about how to do that.

[davidslvto]

Thank you

[casiodk]

how can you access the object that you are updating. for instance a instance of Post

[macfanatic]

Unless you called prepend_before_filter, your filter should run after the ones provided by inherited_resources and therefore your resource should be set.

You could test this by:

ActiveAdmin.register Post do
  controller do
    before_filter :my_filter, only: [:edit, :show]

    private

    def my_filter
      Rails.logger.info "my post: '#{resource}'"
    end
  end
end  

[freeordeal]

Thanks @latortuga and @macfanatic. :)

[reinaris]

@casiodk use resource