weapp: save user extra info at bind user

app/controllers/weapps/code_sessions_controller.rb

@@ -25,6 +25,8 @@ class Weapps::CodeSessionsController < Weapps::BaseController
       end
 
       set_session_unionid(user_info['unionId'])
+      user_info['nickname'] = user_info['nickName']
+      session[:wechat_user_extra] = user_info
     end
 
     set_session_openid(result['openid'])

app/controllers/weapps/sessions_controller.rb

@@ -16,7 +16,7 @@ class Weapps::SessionsController < Weapps::BaseController
     end
 
     # 绑定微信号
-    OpenUsers::Wechat.create!(user: user, uid: session_unionid) if user.wechat_open_user.blank?
+    OpenUsers::Wechat.create!(user: user, uid: session_unionid, extra: session[:wechat_user_extra]) if user.wechat_open_user.blank?
 
     successful_authentication(user)
   end