在用戶選擇的日期發送電子郵件

我的應用程序涉及人們進入主頁，輸入他們爲了好玩而打賭的名字，他們的電子郵件地址，他們想要提醒的日期以及一些關於賭注的細節。我每天都用這個運行一次的寶石。在用戶選擇的日期發送電子郵件

bet.rb

class Bet < ActiveRecord::Base 
    attr_accessible :details, :email, :name, :reminder, :sent 

    # Sends user a reminder if current_date is equal to the reminder date of the bet 
    def check_bet 
    current_date = Time.now.strftime("%Y-%m-%d").to_s 
    @bets = Bet.all 
    @bets.each do |bet| 
    BetMailer.bet_reminder(bet).deliver and bet.sent = true and bet.save! if bet.reminder.to_s == current_date 
    end 
    end 
end

schedule.rb

every :day, :at => '5:00pm' do 
    runner "Bet.check_bet" 
end

bet_mailer.rb

class BetMailer < ActionMailer::Base 
    default from: "[email protected]" 

    def bet_reminder(bet) 
    @bet = bet 

    mail to: bet.email, subject: bet.name + " Reminder" 
    end 
end

我已經成功的我n當current_date等於他們想要提醒的日期（提醒）時發送電子郵件。爲了測試這一點，我已經進入軌道控制檯，選擇一個特定的投注對象，並使用跑check_bet方法就可以了：在終端完成上述

1.9.2p320 :013 > Bet.last.check_bet 
    Bet Load (2.8ms) SELECT "bets".* FROM "bets" ORDER BY "bets"."id" DESC LIMIT 1 
    Bet Load (0.9ms) SELECT "bets".* FROM "bets" 
    (0.2ms) BEGIN 
    (0.3ms) COMMIT 
    (0.2ms) BEGIN 
    (0.3ms) COMMIT 
    (0.2ms) BEGIN 
    (0.2ms) COMMIT 
=> [#<Bet id: 3, name: "Newsroom", email: "[email protected]", reminder: "2013-07-30", details: "Mac and Will are going to get back together.", sent: false, created_at: "2013-07-29 17:23:13", updated_at: "2013-07-29 17:23:13">, #<Bet id: 4, name: "Testing", email: "[email protected]", reminder: "2013-07-29", details: "This is a test", sent: true, created_at: "2013-07-29 18:38:42", updated_at: "2013-07-29 20:17:34">, #<Bet id: 5, name: "Cheaper iPhone", email: "[email protected]", reminder: "2013-07-29", details: "I bet Dad that there will be a cheaper iphone in th...", sent: true, created_at: "2013-07-29 20:39:33", updated_at: "2013-07-29 20:50:14">, #<Bet id: 6, name: "My grades", email: "[email protected]", reminder: "2013-07-29", details: "My grades this year will be > 84% average", sent: true, created_at: "2013-07-29 20:56:18", updated_at: "2013-07-29 21:14:21">]

後，我的郵箱是滿所有具有提醒=當前日期的投注對象。這證明SMTP設置正在工作，並且我的視圖中的代碼工作正常。

然而，當我嘗試對所有輸入對象的運行check_bet方法，我收到一個未定義的方法錯誤：

1.9.2p320 :016 > Bet.all.check_bet 
    Bet Load (1.8ms) SELECT "bets".* FROM "bets" 
NoMethodError: undefined method `check_bet' for #<Array:0x007ffdd2c8c6c0> 
    from (irb):16 
    from /Users/bvlaar/.rvm/gems/[email protected]/gems/railties-3.2.13/lib/rails/commands/console.rb:47:in `start' 
    from /Users/bvlaar/.rvm/gems/[email protected]/gems/railties-3.2.13/lib/rails/commands/console.rb:8:in `start' 
    from /Users/bvlaar/.rvm/gems/[email protected]/gems/railties-3.2.13/lib/rails/commands.rb:41:in `<top (required)>' 
    from script/rails:6:in `require' 
    from script/rails:6:in `<main>

「

此外，當我跑了」捆綁EXEC時'在終端的命令，似乎沒有發送。

來源

2013-07-29 Questifer

請分享您在控制檯中使用的代碼，以「對所有投注對象運行check_bet方法」。另外，你收到的錯誤信息是否真的以'＃<>結尾？還是你在'<>'之間留下了什麼？ –

@PeterAlfvin我會將其添加到我的文章。不，我只是認爲散列無關緊要。謝謝 – Questifer

'＃<>'是Ruby的對象符號，在這種情況下特別相關，因爲它會告訴你有關發送'check_bet'方法的對象。 –

Bet.all返回Array，對此未定義方法check_bet。要在Bet的每個實例上調用check_bet，您需要執行Bet.all.each {|bet| bet.check_bet}或更清潔Bet.all.each(&:check_bet)（對@Ryan Bigg點頭）。

另請參閱http://guides.rubyonrails.org/active_record_querying.html#retrieving-multiple-objects-in-batches，以瞭解一些性能方面的注意事項。

來源

2013-07-30 00:18:10

你也可以做'Bet.all.each（＆：check_bet）'。 –

每當僅僅是一個寶石，幫助您生成的cron任務，它不會爲你運行任何計劃任務，的crontab一樣。

我認爲這將是更好的這樣

every :hour do 
    runner "Bet.check_bet" 
end

每小時運行調度之後，在您的投注模型類，你可以這樣做：

class Bet < ActiveRecord::Base 
    attr_accessible :details, :email, :name, :reminder, :sent 

    # Sends user a reminder if current_date is equal to the reminder date of the bet 
    def self.check_bet 
    current_date = Time.now.strftime("%Y-%m-%d").to_s 
    self.where(:reminder => current_date).each do |bet| 
     BetMailer.bet_reminder(bet).deliver # later you can use some background job gem like sidekiq, rescue or delayed_job to send email, otherwise the performance might be a issue 
     bet.update_attribute(:sent, true) 
    end 
    end 
end 
end

謝謝

來源

2013-07-30 01:12:59

在用戶選擇的日期發送電子郵件

回答

相關問題