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我为 Rails 应用程序设置了基本的登录、登录、注销格式，我打算给它一个功能，这样如果有人忘记了密码，他们可以收到一封电子邮件。当我点击提交密码重置时，我得到了

Missing host to link to! Please provide the :host parameter, set default_url_options[:host], or set :only_path to true
Extracted source (around line #3):

1: To reset your password click the URL below.
2: 
3: <%= edit_password_reset_url(@user.password_reset_token) %>
4: 
5: If you did not request your password to be reset please ignore this email and your password will stay as it is.
Rails.root: /Users/cheatermoves/nightclass/mainproject/project

Application Trace | Framework Trace | Full Trace
app/views/user_mailer/password_reset.text.erb:3:in `_app_views_user_mailer_password_reset_text_erb__3613112772785486465_70118994937040'
app/mailers/user_mailer.rb:6:in `password_reset'
app/models/user.rb:17:in `send_password_reset'
app/controllers/password_resets_controller.rb:7:in `create'

刚刚完成 rails cast 250 并且正在做 274。一切都很好，直到我遇到这个问题。

这是我的控制器。密码重置：

class PasswordResetsController < ApplicationController
  def new
  end

  def create
    user = User.find_by_email(params[:email])
    user.send_password_reset if user
    redirect_to root_url, :notice => "Email sent with password reset instructions."
  end
end

会议：

class SessionsController < ApplicationController
  def new
  end

  def create
    user = User.find_by_email(params[:email])
    if user && user.authenticate(params[:password])
      if params[:remember_me]
        cookies.permanent[:auth_token] = user.auth_token
      else
        cookies[:auth_token] = user.auth_token
      end
      redirect_to root_url, :notice => "Logged in!"
    else
      flash.now.alert = "Invalid email or password"
      render "new"
    end
  end

  def destroy
    cookies.delete(:auth_token)
    redirect_to root_url, :notice => "Logged out!"
  end
end

用户：

class UsersController < ApplicationController
  def new
    @user = User.new
  end

  def create
    @user = User.new(params[:user])
    if @user.save
      session[:user_id] = @user.id
      redirect_to root_url, notice: "Thank you for signing up!"
    else
      render "new"
    end
  end
end

及应用：

class ApplicationController < ActionController::Base
  protect_from_forgery

  private
  def current_user
    @current_user ||= User.find_by_auth_token( cookies[:auth_token]) if cookies[:auth_token]
  end
  helper_method :current_user
end

在 environment/development.rb 我有

config.action_mailer.default_url_options = { :host => "localhost:3000" }

这是我的用户模型

class User < ActiveRecord::Base
  attr_accessible :name, :email, :password, :password_confirmation
  has_secure_password
  validates_presence_of :password, :on => :create
  before_create { generate_token(:auth_token) }

  def generate_token(column)
    begin
      self[column] = SecureRandom.urlsafe_base64
    end while User.exists?(column => self[column])
  end

  def send_password_reset
    generate_token(:password_reset_token)
    self.password_reset_sent_at = Time.zone.now
    save!
    UserMailer.password_reset(self).deliver
  end
end

user_mailer.rb 文件

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

  def password_reset(user)
    @user = user
    mail :to => user.email, :subject => "Password Reset"
  end
end

有谁知道问题是什么以及如何解决？如果有人想知道，我正在使用 rails 3.2.14。谢谢！

4

1 回答 1

0

Didn't read the part where you said that you already set your 

config.default_url_options[:host] = "localhost:3000"

my bad, sorry

于 2013-11-13T08:04:49.817 回答