also translate mail subjects

app/mailers/mailer.rb

@@ -26,7 +26,7 @@ class Mailer < ActionMailer::Base
     @link = new_password_url(id: @user.id, token: @user.reset_password_token)
 
     mail :to => @user.email,
-         :subject => "[#{FoodsoftConfig[:name]}] Neues Passwort für/ New password for #{@user.nick}"
+         :subject => "[#{FoodsoftConfig[:name]}] " + I18n.t('mailer.reset_password.subject', :username => @user.nick)
   end
     
   # Sends an invite email.
@@ -36,7 +36,7 @@ class Mailer < ActionMailer::Base
     @link = accept_invitation_url(token: @invite.token)
 
     mail :to => @invite.email,
-         :subject => "Einladung in die Foodcoop #{FoodsoftConfig[:name]} - Invitation to the Foodcoop"
+         :subject => I18n.t('mailer.invite.subject')
   end
 
   # Notify user of upcoming task.
@@ -46,7 +46,7 @@ class Mailer < ActionMailer::Base
     @task = task
 
     mail :to => user.email,
-         :subject =>  "[#{FoodsoftConfig[:name]}] Aufgaben werden fällig!"
+         :subject =>  "[#{FoodsoftConfig[:name]}] " + I18n.t('mailer.upcoming_tasks.subject')
   end
 
   # Sends order result for specific Ordergroup
@@ -56,7 +56,7 @@ class Mailer < ActionMailer::Base
     @group_order  = group_order
 
     mail :to => user.email,
-         :subject => "[#{FoodsoftConfig[:name]}] Bestellung beendet: #{group_order.order.name}"
+         :subject => "[#{FoodsoftConfig[:name]}] " + I18n.t('mailer.order_result.subject', :name => group_order.order.name)
   end
 
   # Notify user if account balance is less than zero
@@ -66,7 +66,7 @@ class Mailer < ActionMailer::Base
     @transaction  = transaction
 
     mail :to => user.email,
-         :subject => "[#{FoodsoftConfig[:name]}] Gruppenkonto im Minus"
+         :subject => "[#{FoodsoftConfig[:name]}] " + I18n.t('mailer.negative_balance')
   end
 
   def feedback(user, feedback)
@@ -78,7 +78,7 @@ class Mailer < ActionMailer::Base
          :from => "#{user.nick} <#{user.email}>",
          :sender => FoodsoftConfig[:notification]["sender_address"],
          :errors_to => FoodsoftConfig[:notification]["sender_address"],
-         :subject => "[Foodsoft] Feeback von #{user.email}"
+         :subject => "[#{FoodsoftConfig[:name]}] " + I18n.t('mailer.feedback.subject', :email => user.email)
   end
 
   def not_enough_users_assigned(task, user)
@@ -87,7 +87,7 @@ class Mailer < ActionMailer::Base
     @user = user
 
     mail :to => user.email,
-         :subject => "[#{FoodsoftConfig[:name]}] \"#{task.name}\" braucht noch Leute!"
+         :subject => "[#{FoodsoftConfig[:name]}] " + I18n.t('mailer.not_enough_users_assigned.subject', :task => task.name)
   end
 
   private

config/locales/de/de.mailer.yml

@@ -2,6 +2,7 @@ de:
   mailer:
     dateformat: '%d. %b'
     feedback:
+      subject: 'Feedback von %{email}'
       header: '%{user} schrieb am %{date}:'
     foodsoft_message:
       footer: |
@@ -9,6 +10,7 @@ de:
        Nachricht online einsehen: %{msg_url}
        Nachrichten-Einstellungen: %{profile_url}
     invite:
+      subject: 'Einlading in die Foodcoop'
       text: |
         Hallo!
         
@@ -18,6 +20,7 @@ de:
         
         Grüße sendet die Foodsoft!
     negative_balance:
+      subject: 'Gruppenkonto im Minus'
       text: |
         Liebe %{group},
 
@@ -29,6 +32,7 @@ de:
 
         Viele Grüße von %{foodcoop}
     not_enough_users_assigned:
+      subject: '"%{task}" braucht noch Leute!'
       text: |
         Liebe(r) %{user},
 
@@ -41,6 +45,7 @@ de:
 
         Deine Aufgaben: %{user_tasks_url}
     order_result:
+      subject: 'Bestellung beendet: %{name}'
       text0: |
         Liebe %{ordergroup},
 
@@ -54,6 +59,7 @@ de:
 
         Viele Grüße von %{foodcoop}
     reset_password:
+      subject: 'Neues Password für %{username}'
       text: |
         Hallo %{user},
         
@@ -65,6 +71,7 @@ de:
         
         Grüße sendet die Foodsoft! :)
     upcoming_tasks:
+      subject: 'Aufgaben werden fällig!'
       text0: |
         Liebe(r) %{user},
 

config/locales/en/en.mailer.yml

@@ -2,6 +2,7 @@ en:
   mailer:
     dateformat: '%d %b'
     feedback:
+      subject: 'Feedback from %{email}'
       header: '%{user} wrote at %{date}:'
     foodsoft_message:
       footer: |
@@ -9,6 +10,7 @@ en:
        See message online: %{msg_url}
        Messaging options: %{profile_url}
     invite:
+      subject: 'Invitation to the Foodcoop'
       text: |
         Hi!
         
@@ -18,6 +20,7 @@ en:
         
         Greetings, your Foodsoft Team!
     negative_balance:
+      subject: 'Negative account balance'
       text: |
         Dear %{group},
 
@@ -29,6 +32,7 @@ en:
 
         Kind regards from %{foodcoop}.
     not_enough_users_assigned:
+      subject: '"%{task}" still needs people!'
       text: |
         Dear %{user},
 
@@ -54,6 +58,7 @@ en:
 
         Kind regards from %{foodcoop}.
     reset_password:
+      subject: 'New password for %{username}'
       text: |
         Hi %{user},
 
@@ -64,6 +69,7 @@ en:
         
         Greetings, your Foodsoft Team!
     upcoming_tasks:
+      subject: 'Tasks are due!'
       text0: |
         Dear %{user},