update-1

app/models/scale_device.rb

@@ -24,7 +24,7 @@ class ScaleDevice < ActiveRecord::Base
       field :id
       field :wx_user_id
       field :wx_user do
-        formatted_value do
+        pretty_value do
           bindings[:object].wx_user_contact
         end
       end
@@ -36,7 +36,7 @@ class ScaleDevice < ActiveRecord::Base
     show do
       field :wx_user_id
       field :wx_user do
-        formatted_value do
+        pretty_value do
           bindings[:object].wx_user_contact
         end
       end

app/models/scale_result.rb

@@ -25,7 +25,7 @@ class ScaleResult < ActiveRecord::Base
       field :id
       field :wx_user_id
       field :wx_user do
-        formatted_value do
+        pretty_value do
           bindings[:object].wx_user_contact
         end
       end
@@ -39,7 +39,7 @@ class ScaleResult < ActiveRecord::Base
     show do
       field :wx_user_id
       field :wx_user do
-        formatted_value do
+        pretty_value do
           bindings[:object].wx_user_contact
         end
       end

app/models/scale_user.rb

@@ -33,7 +33,7 @@ class ScaleUser < ActiveRecord::Base
       field :id
       field :wx_user_id
       field :wx_user do
-        formatted_value do
+        pretty_value do
           bindings[:object].wx_user_contact
         end
       end
@@ -62,7 +62,7 @@ class ScaleUser < ActiveRecord::Base
     show do
       field :wx_user_id
       field :wx_user do
-        formatted_value do
+        pretty_value do
           bindings[:object].wx_user_contact
         end
       end