幫助與行動郵件

Question

require 'config/environment' 

inquiry    = Inquiry.find(:all, :conditions => ["is_answered = 0"]) 

inquiry.each do |i| 
    question   = i.question 
    user    = User.find(:first, :conditions => ["id = ?", question.user_id]) 

    Notifier.deliver_deadline_notification(inquiry, user, question) 
end 

我有表inquiry（關係表）與is_answered字段（例如）。

我需要什麼？我需要在我的問題（is_answered = 0）上發送電子郵件爲NOT answered的人。所以，現在的工作是這樣的：我收到的電子郵件2（因爲我在數據庫中有1個問題和2級的用戶誰不回答）：

id | question_id | is_answered 
14 |  11  |  0 
24 |  11  |  0 

所以，我需要接受ONLY ONE EMAIL不是兩個！在電子郵件中，我想寫一些關於問題的統計數據。但我只需要一封電子郵件！我怎麼可能做到這一點？

謝謝！

------------------ UPD -----------------

model/notifier.rb 
    def deadline_notification(inquiry, user, question, respondent) 
    recipients user.email 
    from   "hey@hey.com" 
    subject  "Finished" 
    content_type "text/html" 
    body(:question => question.text, :respondent => respondent.email) 
    end 

model/inquiry 

class Inquiry < ActiveRecord::Base 
    belongs_to :question 
    belongs_to :respondent 
    has_one  :answer, :dependent => :destroy 

model/question 

class Question < ActiveRecord::Base 
    has_many :inquiries, :dependent => :destroy 
    has_many :answers, :through => :inquiries, :dependent => :destroy 
    belongs_to :user 
end 

model/respondent 

class Respondent < ActiveRecord::Base 
    has_many :inquiries, :dependent => :destroy 
    has_many :questions, :through => :inquiries 
    belongs_to :user 
end 

model/user 

class User < ActiveRecord::Base 
    has_many :questions 
    has_many :respondents 

TODO：找到（例如，我有100個受訪者，並且有70個人被回答）並且發送了ME電子郵件（用戶，他補充了問題確定，（它正在工作）），70個回答者回答了（並且完全正確）和誰不回答回答。只需發送一封電子郵件！

PS - 現在，我收到30個電子郵件（誰不回答），但我認爲這是錯誤的：d

Answer 1

這聽起來像你正試圖在這裏做的是找到誰沒有回答問題，所有用戶上 - 所以一些調查像

`User.all(:includes=>[:questions, :inquiries], :conditions=>["is_answered=?",0]) 

然後你就可以通過集合（查詢，問題）的看法，並遍歷列出您的統計

希望我做了這個明確的 - 如果不是也許我可以如果您在模型上發佈關聯，則做得更好s和您正在使用的郵件視圖...

Answer 2

好吧，我想看看你現在在做什麼！如何

#get all unanswered inquiries 
inquiries = Inquiry.find(:all, :conditions => ["is_answered = 0"]) 

#get all users who have unanswered inquiries and build a hash {:user=>[inquiries]} 
user_hash= inquiries.inject({})(|uh,i| uh.key?(i.question.user) ? uh[i.question.user] << i : uh[i.question.user]=>[i] 
uh) 


#iterate thro the users and send a mail to each ... 
user_hash.each do |user, inquiries| 
#obviously your existing view won't work here - you need to iterate thro inquiries 
Notifier.deliver_deadline_notification(user, inquiries) 
end