Rails translation displaying translation name in front of translation string in browser - ruby-on-rails

Question

In my locale file, there is the following translation:
de:
activerecord:
errors:
models:
user:
attributes:
email:
taken: "Die E-Mail Adresse wird bereits benutzt."
When i open the desired page in my browser, the error message looks like the following:
Email Die E-Mail Adresse wird bereits benutzt.
So does anybody know why there is another "Email" in front of the translated string?

Answer 1

The correct yml structure should be:
de:
activerecord:
models:
user: Dude
attributes:
user:
email: "mail"
errors:
template:
header:
one: "1 error prohibited this %{model} from being saved"
other: "%{count} errors prohibited this %{model} from being saved"
body: "There were problems with the following fields:"
errors:
format: ! '%{attribute} %{message}'
messages:
taken: "Email Die E-Mail Adresse wird bereits benutzt."
Note that there are two "errors" keys, one inside activerecord and another one outside. Use the later for validation messages.
You could get a more full detailed translation file from https://github.com/svenfuchs/rails-i18n/blob/master/rails/locale/en.yml
You might find the devise translation file at https://github.com/mcasimir/devise-i18n-views/blob/master/locales/en.yml
For my projects, I usually have several translation files for each language:
rails.en.yml: messages used by rails (inspired by the svenfuchs file)
devise.en.yml: messages related to authentication (from the devise project itself)
en.yml: messages I create on my views that doesn't belong to other gems (gems like "simple_form" usually have also their own file)
Edit
From the Rails Internationalization guide, validation messages will be searched in this order:
activerecord.errors.models.user.attributes.name.blank
activerecord.errors.models.user.blank
activerecord.errors.messages.blank
errors.attributes.name.blank
errors.messages.blank
So it's correct to use what you posted on the question:
de:
activerecord:
errors:
models:
user:
attributes:
email:
taken: "http://guides.rubyonrails.org/i18n.html#translations-for-active-record-models"