Cannot access resources in show DSL with same name as HTML tags

[timriley]

When you have a resource with a name that is the same as an HTML tag, like Article, then you will not be able to access the resource instance.

For example:

ActiveAdmin.register Article do
  show :title => :title do
    attributes_table do
      row :title
      row :author
      row :body do
        md(article.body)
      end
    end
  end  
end

When I'm trying to pass article.body to my md helper method above, the "article" variable is actually an instance of Arbre::HTML::Article, instead of my ActiveRecord subclass.

To work around this, I'm currently doing the following:

ActiveAdmin.register Article do
  show :title => :title do
    _article = @_assigns['article']

    attributes_table do
      row :title
      row :author
      row :body do
        md(_article.body)
      end
    end
  end  
end

But it would probably be good to have some way of handling this more nicely.

[tomkarlo]

I'm having a similar issue in the dashboard because I have an model named "Label" (it's a fashion site) and it's conflicting with Arbre::HTML::Label ...

section "Recent Labels" do
  ul do
    Label.last(5).collect do |label|
      li link_to(label.name, admin_label_path(label))
    end
end

returns: undefined method `last' for Arbre::HTML::Label:Class

[tomkarlo]

For now, this is working for me:

ActiveRecord::Base::Label.last(5).collect do |label|

[gregbell]

Thanks for reporting this. I've moved it into the 0.4.0 release as something to deal with.

[ghost]

Same problem here.

[pcreux]

Fixed in 0.3.0.

[mark100net]

Are you sure this is fixed? I'm having this problem with an Area model in 0.5.0.

[aleicher]

I'm facing the same issue using active admin1.0.0pre
I have an Area model in my rails app, which I want to show in Active Admin.

The workaround as suggested above worked for me, i.e. first get the object from the assigns hash.

  show do
    _area = assigns[:area]
    attributes_table do
      # then use _area to access the area object
    end
  end

[seanlinsley]

@aleicher no matter what your model is named you can always access it by calling resource instead of the alias named specifically for that model.

[aleicher]

Thx. Seems like I missed that one, works great.

[rendekarf]

Wow! Had the exact same issue (model named Area) in 2022, checked docs and google'd it with no luck, until I found this issue thread. Cheers @seanlinsley