ActionMailer：未定義的方法`收件人'爲

Question

我正在爲我的一個ActionMailers - InvitationMailer寫一個測試，但是，它似乎找不到「收件人」方法。

我的測試如下所示：

describe "Invitation" do 
    it "should send invitation email to user" do 
    user = Factory :user 

    email = InvitationMailer.invitation_email(user).deliver 
    # Send the email, then test that it got queued 
    assert !ActionMailer::Base.deliveries.empty? 

    # Test the body of the sent email contains what we expect it to 
    assert_equal [user.email], email.to 
    assert_equal "You have been Invited!", email.subject 

    end 

我InvitationMailer看起來是這樣的：

class InvitationMailer < ActionMailer::Base 
    default from: "webmaster@myapp.com" 

    def invitation_email(user) 
    recipients user.email 
    from  "invitations@myapp.com" 
    subject  "You have been Invited!" 
    body  :user => user 
    end 

end 

我然而，收到以下錯誤信息：

Failure/Error: email = InvitationEmail.invitation_email(user).deliver 
NoMethodError: 
    undefined method `recipients' for #<InvitationMailer:0x007fca0b41f7f8> 

任何想法它可能是？

Answer 1

下面是來自Rails Guide for ActionMailer一個例子：

class UserMailer < ActionMailer::Base 
    default :from => "notifications@example.com" 

    def welcome_email(user) 
    @user = user 
    @url = "http://example.com/login" 
    mail(:to => user.email, 
     :subject => "Welcome to My Awesome Site", 
     :template_path => 'notifications', 
     :template_name => 'another') 
    end 
end 

使你的代碼看起來更像這樣可能更容易解決，所以我第一次改寫它看起來像：

class InvitationMailer < ActionMailer::Base 
    default from: "webmaster@myapp.com" 

    def hassle_email(user) 
    @user = user 
    mail(:to => user.email, 
     :subject => "You have been Invited!") 
    end 
end 

然後，您將:to,:subject和@user對象傳遞給郵件視圖，就像任何其他視圖一樣。

您是否使用recipients我不確定您是否嘗試將電子郵件發送到多個電子郵件地址。如果是這樣，根據的ActionMailer文檔：

它可以發送電子郵件給一個或多個收件人在一封電子郵件 （用於如通知新註冊的所有管理員）通過設置 電子郵件到列表：關鍵。電子郵件列表可以是電子郵件地址的一個陣列，也可以是地址或單個字符串，地址之間用逗號分隔。