Question

I am using ActiveAdmin to render an index table for a model.

The config looks like this:

ActiveAdmin.register User do
  index do
    selectable_column
    column :username
    column "Email" do |u|
      raw "<span title='#{u.email}'>#{truncate(u.email, length: 14)}</span>"
    end
  end
end

The rendered HTML for the “email” TD looks like this:

  <td class=""><span title="[e-mail]">useremail...</span></td>

I have tried passing class: ‘foo’ before the block and a few things like that but none have worked.

All of the columns that are not being created with the block syntax are getting a class attribute equal to the field name.

How do I set the class for the TD when using a block to render the column?

Answer 1

you have to override build_table_cell method,
you can take needed code here https://gist.github.com/3995962

put it to initializers folder.

now you can use it like

column(:status, :sortable => 'enabled', :class=>'status') do |row|
        #some logic 
     end