的Rails 3 +行動郵件 - 無法循環發送電子郵件

Question

用戶可以創建一個對象，他有，我想，當他創建這個對象，以提醒追隨者。

控制器：

if @project.save 
    format.html { redirect_to(@project, :notice => 'Project was successfully created.') } 
    format.xml { render :xml => @project, :status => :created, :location => @project } 
    # Send a notification to project owner's followers : 
    UserMailer.new_project(@project).deliver 
else 
    ... 

user_mailer.rb：

def new_project(project) 
    @url = "http://localhost:3000/" 
    @project = project 
    # For each of project owner's follower, send an email notification 
    @followers = project.owner.followers.all 
    @followers.each do |f| 
     @u = User.find(f.follower) 
     mail( :to => @u.email, 
      :from => '"Beatrix Kiddo" <beatrix@example.com>', 
      :subject => "#{project.owner.name} created a new project") 
    end 
end 

測試使用具有2個關注用戶：
User.find(1).followers.count = 2

Follower.follower是id正在關注的用戶。

只有1封電子郵件被髮送到第一個跟隨者，第二個沒有收到任何東西 - 有什麼不對？

[解決] =>此.deliver方法根本不支持多個消息。 THX DR

Answer 1

的ActionMailer不支持與一個deliver電話發送多封郵件。 你必須移動迴路中的new_project方法之外：

而不是

UserMailer.new_project(@project).deliver 

試試這個：

@followers = @project.owner.followers.all 
@followers.each do |f| 
    UserMailer.new_project(@project, f).deliver 
end 

然後new_project方法看起來是這樣的：

def new_project(project, follower) 
    @u = User.find(f.follower) 
    mail(:to => @u.email, 
     :from => '"Beatrix Kiddo" <beatrix@example.com>', 
     :subject => "#{project.owner.name} created a new project") 
end 

Answer 2

您還可以將.delive請撥打您的new_project方法。這工作我使用Rails 3：

def new_project(project) 
    # ... 
    @followers.each do |f| 
    # ... 
    mail(:to => @u.email, 
     :from => '"Beatrix Kiddo" <beatrix@example.com>', 
     :subject => "#{project.owner.name} created a new project").deliver 
    end 
end 

要發送的郵件，你可以使用

if @project.save 
    # ... 
    UserMailer.new_project(@project) 
else 
    # ... 
end