fix

app/services/cnmoocs_service.rb

@@ -88,10 +88,10 @@ class CnmoocsService
       password: OauthController::DEFAULT_PASSWORD,
       certification: 1
     }
+    user = User.new(create_params)
+    # login 有问题，只能这样赋值
+    user.login = login
     ActiveRecord::Base.transaction do
-      user = User.new(create_params)
-      # login 有问题，只能这样赋值
-      user.login = login
       user.save!
 
       UserExtensions.create!(user_id: user.id, school_id: School.first.id, identity: 4, gender: 0)