1 files changed, 22 insertions, 0 deletions
diff --git a/users/app/models/identity.rb b/users/app/models/identity.rb
index c9c8b73..4dff93a 100644
--- a/users/app/models/identity.rb
+++ b/users/app/models/identity.rb
@@ -7,7 +7,29 @@ class Identity < CouchRest::Model::Base
   property :address, LocalEmail
   property :destination, Email
 
+  validate :unique_forward
+  validate :alias_available
+
   design do
     view :by_user_id
+    view :by_address_and_destination
+    view :by_address
+  end
+
+  protected
+
+  def unique_forward
+    same = Identity.find_by_address_and_destination([address, destination])
+    if same && same != self
+      errors.add :base, "This alias already exists"
+    end
   end
+
+  def alias_available
+    same = Identity.find_by_address(address)
+    if same && same.user != self.user
+      errors.add :base, "This email has already been taken"
+    end
+  end
+
 end