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对于我的自定义收件箱消息系统，我正在设置已发送消息文件夹。我得到一个wrong number of arguments (1 for 0). 该页面的标题是 MessagesController#index 中的 ArgumentError。我似乎无法正确定义方法。任何帮助将不胜感激，因为我尝试了一些事情，但似乎无法让它发挥作用。我确信这是一个正常的小修复，但我是 Rails 新手，所以我还不知道所有方法。

用户.rb：

  def received_messages
      Message.received_by(self)
    end

 def unread_messages?
   unread_message_count > 0 ? true : false
 end

 def sent_messages
   Message.sent_by(self)
 end

消息.rb：

     class Message < ActiveRecord::Base
attr_accessible :subject, :body, :sender_id, :recipient_id, :read_at,:sender_deleted,:recipient_deleted
validates_presence_of :subject, :message => "Please enter message title"

belongs_to :sender,
:class_name => 'User',
:foreign_key => 'sender_id'
belongs_to :recipient,
:class_name => 'User',
:foreign_key => 'recipient_id'

# marks a message as deleted by either the sender or the recipient, which ever the user that was passed is.
# When both sender and recipient marks it deleted, it is destroyed.
def mark_message_deleted(id,user_id)
     self.sender_deleted = true if self.sender_id == user_id
     self.recipient_deleted = true if self.recipient_id == user_id
     (self.sender_deleted && self.recipient_deleted) ? self.destroy : self.save!
 end
# Read message and if it is read by recipient then mark it is read
def readingmessage
  self.read_at ||= Time.now
  save
end

# Based on if a message has been read by it's recipient returns true or false.
def read?
    self.read_at.nil? ? false : true
end

def self.received_by(user)
   where(:recipient_id => user.id)
 end

 def self.not_recipient_deleted
   where("recipient_deleted = ?", false)
 end

 def self.sent_by(user)
   user.messages.sent
 end

结尾

消息控制器：

 def index
    if params[:mailbox] == "sent"
      @messages = @user.sent_messages
    elsif params[:mailbox] == "inbox"
      @messages = @user.received_messages
    #elsif params[:mailbox] == "archieved"
     # @messages = @user.archived_messages
    end
  end

收件箱.html.erb：

<%= link_to "View Sent Messages", user_messages_path(current_user, :mailbox => :sent)%>
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1 回答 1

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看起来您对 Message.sent_by 的定义不正确，请尝试：

 # message.rb
 def self.sent_by(user)
   Message.where(:sender_id => user.id)
 end
于 2013-04-17T16:46:23.903 回答