Rails控制器返回未定义的方法“save”，但仍在保存
Rails控制器返回未定义的方法“save”，但仍在保存
提问于 2017-07-18 23:15:04
几天来，我一直在努力让具有多个提供商的Omniauth工作。我终于让它(大部分)正常工作了- Facebook和Twitter的同步工作与预期的一样，但我在Steam上遇到了问题。
class AuthenticationsController < ApplicationController
skip_before_action :verify_authenticity_token, :only => :steam
def index
@authentications = current_user.authentications.all
end
# <%= link_to 'Authentications', authentications_path %>
def home
end
def twitter
omni = request.env["omniauth.auth"]
authentication = Authentication.find_by_provider_and_uid(omni['provider'], omni['uid'])
if authentication
flash[:notice] = "Logged in Successfully"
sign_in_and_redirect User.find(authentication.user_id)
elsif current_user
token = omni['credentials'].token
token_secret = omni['credentials'].secret
current_user.authentications.create!(:provider => omni['provider'],
:uid => omni['uid'],
:token => token,
:token_secret => token_secret)
flash[:notice] = "Authentication successful."
sign_in_and_redirect current_user
else
user = User.new
user.apply_omniauth(omni)
raise user.inspect
if user.save
flash[:notice] = "Logged in."
sign_in_and_redirect User.find(user.id)
else
session[:omniauth] = omni.except('extra')
redirect_to new_user_registration_path
end
end
end
def destroy
@authentication = Authentication.find(params[:id])
@authentication.destroy
redirect_to authentications_url, :notice => "Successfully destroyed authentication."
end
def facebook
omni = request.env["omniauth.auth"]
authentication = Authentication.find_by_provider_and_uid(omni['provider'], omni['uid'])
if authentication
flash[:notice] = "Logged in Successfully"
sign_in_and_redirect User.find(authentication.user_id)
elsif current_user
token = omni['credentials'].token
token_secret = ""
current_user.authentications.create!(:provider => omni['provider'],
:uid => omni['uid'],
:token => token,
:token_secret => token_secret)
flash[:notice] = "Authentication successful."
sign_in_and_redirect current_user
else
user = User.new
user.email = omni['extra']['raw_info'].email
user.apply_omniauth(omni)
if user.save
flash[:notice] = "Logged in."
sign_in_and_redirect User.find(user.id)
else
session[:omniauth] = omni.except('extra')
redirect_to new_user_registration_path
end
end
end
def steam
omni = request.env["omniauth.auth"]
authentication = Authentication.find_by_provider_and_uid(omni['provider'], omni['uid'])
if authentication
flash[:notice] = "Logged in Successfully"
sign_in_and_redirect User.find(authentication.user_id)
elsif current_user
token = omni['extra']['raw_info'].steamid
# render :text => request.env["omniauth.auth"].info.to_hash.inspect
puts token
token_secret = ""
current_user.authentications.create!(:provider => omni['provider'],
:uid => omni['uid'],
:token => token,
:token_secret => token_secret)
flash[:notice] = "Authentication successful."
sign_in_and_redirect current_user
else
user = User.new
user.apply_omniauth(omni)
end
if user.save
flash[:notice] = "Logged in."
sign_in_and_redirect User.find(user.id)
else
session[:omniauth] = omni.except('extra')
redirect_to new_user_registration_path
end
end
end正如您所看到的，twitter函数和steam几乎是重复的-它们引用了User model中的一个函数，该函数是
def apply_omniauth(omni)
authentications.build(:provider => omni['provider'],
:uid => omni['uid'],
:token => omni['credentials'].token,
:token_secret => omni['credentials'].secret)
end目前，Steam将响应undefined method 'save' for nil on
if user.save
flash[:notice] = "Logged in."
sign_in_and_redirect User.find(user.id)
else让我困惑的是，它实际上是在节省时间。
=> #<Authentication id: 12, provider: "steam", uid: "redacted", token: "76561198038103683", token_secret: "", created_at: "2017-07-18 14:57:32", updated_at: "2017-07-18 14:57:32", user_id: 2>
2.4.1 :022 > u.authentications.last.destroy
Authentication Load (0.8ms) SELECT "authentications".* FROM "authentications" WHERE "authentications"."user_id" = $1 ORDER BY "authentications"."id" DESC LIMIT $2 [["user_id", 2], ["LIMIT", 1]]
(0.3ms) BEGIN
SQL (0.6ms) DELETE FROM "authentications" WHERE "authentications"."id" = $1 [["id", 13]]
(4.2ms) COMMIT
=> #<Authentication id: 13, provider: "steam", uid: "redacted", token: "redacted", token_secret: "", created_at: "2017-07-18 15:13:00", updated_at: "2017-07-18 15:13:00", user_id: 2>
2.4.1 :023 > u.authentications.last
Authentication Load (0.6ms) SELECT "authentications".* FROM "authentications" WHERE "authentications"."user_id" = $1 ORDER BY "authentications"."id" DESC LIMIT $2 [["user_id", 2], ["LIMIT", 1]]
=> #<Authentication id: 14, provider: "steam", uid: "redacted", token: "redacted", token_secret: "", created_at: "2017-07-18 15:13:19", updated_at: "2017-07-18 15:13:19", user_id: 2> 我删除了记录-然后重新验证，并得到相同的错误，但关系确实存在。
我不确定如何打印user来查看它发生了什么，也不知道如何在其中进行bug测试。
任何反馈都是受欢迎的，对于这个宝石来说已经是很长的几天了。
回答 1
Stack Overflow用户
发布于 2017-07-18 23:24:33
因此，您仅在else分支中设置user变量。如果对任何其他分支求值，则user变量为空。只需将最后一个if (if user.save)移到second if的else分支：
def steam
omni = request.env["omniauth.auth"]
authentication = Authentication.find_by_provider_and_uid(omni['provider'], omni['uid'])
if authentication
flash[:notice] = "Logged in Successfully"
sign_in_and_redirect User.find(authentication.user_id)
elsif current_user
token = omni['extra']['raw_info'].steamid
# render :text => request.env["omniauth.auth"].info.to_hash.inspect
puts token
token_secret = ""
current_user.authentications.create!(:provider => omni['provider'],
:uid => omni['uid'],
:token => token,
:token_secret => token_secret)
flash[:notice] = "Authentication successful."
sign_in_and_redirect current_user
else
user = User.new
user.apply_omniauth(omni)
if user.save
flash[:notice] = "Logged in."
sign_in_and_redirect User.find(user.id)
else
session[:omniauth] = omni.except('extra')
redirect_to new_user_registration_path
end
end
end页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/45170839
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