我无法在我的用户模型中获取以下方法来处理哈希('auth')我从LinkedIn获取用户登录:
def self.deep_get auth, *fields
auth.inject(auth) { |acc, e| acc[e] if acc }
end
我稍后在我的用户模型中调用'deep_get'方法,因为我使用omniauth / linkedin gem创建了一个用户。但是,它为提供者/ uid /标题/电子邮件用户字段返回nil值,我知道这些字段不是nil。
我将first_name和last_name字段作为示例包含在内,因为这种方法正在工作(不返回nil值),但(正如我所知)坏的样式/异常处理。关于为什么我的deep_get注入方法无法按照我的意愿检索哈希中的数据的任何想法?
def self.create_from_omniauth(auth)
create! do |user|
# i'd like to retrieve user information from linkedin per the following with my inject method, but i am getting nil values when i should be getting data.
# :provider and :uid are on the same branch level of data. first_name,last_name,email,etc. are on a branch just below called 'info'
user.provider = deep_get(auth, :provider)
user.uid = deep_get(auth, :uid)
user.headline = deep_get(auth, :info, :headline)
user.email = deep_get(auth, :info, :email)
# the below is working but i know pokemon exception handling is not good style.
begin
user.first_name = auth["info"]["first_name"]
rescue
end
begin
user.last_name = auth["info"]["last_name"]
rescue
end
答案 0 :(得分:0)
试试这个
def deep_find(obj,key)
if obj.respond_to?(:key?) && obj.key?(key)
obj[key]
elsif obj.respond_to?(:each)
r = nil
obj.find{ |*a| r=deep_find(a.last,key) }
r
end
end
or try this
class Hash
def deep_fetch(key, default = nil)
default = yield if block_given?
(deep_find(key) or default) or nil
end
def deep_find(key)
if key?(key)
self[key]
else
self.values.inject(nil) do |memo, v|
memo = v.deep_find(key) if v.respond_to?(:deep_find)
memo unless memo.nil?
end
end
end
end