app/admin/user.rb
ActiveAdmin.register User do
actions :all, except: [:destroy]
permit_params :email, :name, :password, :admin
index do
selectable_column
column :email
column :name
column :admin
column :sign_in_count
actions
end
form do |f|
f.semantic_errors
if f.object.new_record?
f.inputs :email, :name, :password, :admin
else
f.inputs :email, :name, :admin
end
f.actions
end
end