```ruby
class JwtToken < ActiveRecord::Base
  <% if database_name.present? %>
  databases = YAML::load(IO.read('config/database_<%= database_name %>.yml'))
  establish_connection databases[Rails.env]
  <% end %>

  has_many :jwt_users, dependent: :destroy
end```

Add attr_accessible for JwtToken fields.
user
```ruby
class JwtToken < ActiveRecord::Base
  <% if database_name.present? %>
  databases = YAML::load(IO.read('config/database_<%= database_name %>.yml'))
  establish_connection databases[Rails.env]
  <% end %>

  has_many :jwt_users, dependent: :destroy

  attr_accessible :addon_key, :client_key, :shared_secret, :product_type
end
```
assistant