OmniAuth + Facebook：无法将字符串转换为整数

Question

我正在将OmniAuth Facebook整合到我的网站上。我有它的工作，但后来我想添加更多的用户模型。这里是我的user.rb

class User < ActiveRecord::Base 
    def self.create_with_omniauth(auth) 
     create! do |user| 
      user.provider = auth["provider"] 
      user.uid = auth["uid"] 
      user.email = auth["info"]["email"] 
      user.name = auth["info"]["name"] 
      user.first_name = auth["info"]["first_name"] 
      user.last_name = auth["info"]["last_name"] 
      user.birthday = auth["extra"]["raw_info"]["birthday"] 
      user.location = auth["info"]["location"] 
      user.hometown = auth["extra"]["raw_info"]["hometown"]["name"] 
      user.employer = auth["extra"]["raw_info"]["work"]["employer"]["name"] 
      user.position = auth["extra"]["raw_info"]["work"]["position"]["name"] 
      user.gender = auth["extra"]["raw_info"]["gender"] 
      user.school = auth["extra"]["raw_info"]["education"]["school"] 
      user.token = auth["credentials"]["token"] 
     end 
    end 
end 

当我与Facebook进行身份验证，我知道得到以下错误：

TypeError (can't convert String into Integer): 
    app/models/user.rb:13:in `[]' 
    app/models/user.rb:13:in `block in create_with_omniauth' 
    app/models/user.rb:3:in `create_with_omniauth' 
    app/controllers/sessions_controller.rb:4:in `create' 

我张贴user.rb

在sessions_controller.rb 4号线是

user = User.find_by_provider_and_uid（auth [“provider”]，auth [“uid”]）|| User.create_with_omniauth（auth）

Answer 1

它看起来像auth [“extra”] [“raw_info”] [“work”]实际上是一个数组。

如果更改：

user.employer = auth["extra"]["raw_info"]["work"]["employer"]["name"] 
user.position = auth["extra"]["raw_info"]["work"]["position"]["name"] 

到：

if auth["extra"]["raw_info"]["work"] 
    user.employer = auth["extra"]["raw_info"]["work"][0]["employer"]["name"] 
    user.position = auth["extra"]["raw_info"]["work"][0]["position"]["name"] 
end 

这应该DWYM。