ruby-on-rails-3 - 如何创建启用和禁用的单选按钮？

Question

可能重复：
如何通过单选按钮启用和禁用邮件通知？

我正在制作一个应用程序，当用户创建、更新或删除用户时，它将收到一封通知邮件。现在我想要的是在创建用户时会询问用户您希望通过通知邮件用户可以启用或禁用单选按钮。现在谁能告诉我如何创建这两个单选按钮？？？任何帮助，将不胜感激..

谢谢

Answer 1

这是我的用户控制器

class UsersController < ApplicationController
# GET /users
# GET /users.json


def index
@users = User.all

respond_to do |format|
  format.html # index.html.erb
  format.json { render json: @users }
end
end

# GET /users/1
# GET /users/1.json
def show
@user = User.find(params[:id])

respond_to do |format|
  format.html # show.html.erb
  format.json { render json: @user }
end
end

# GET /users/new
# GET /users/new.json
def new
@user = User.new

respond_to do |format|
  format.html # new.html.erb
  format.json { render json: @user }
end
end

# GET /users/1/edit
def edit
@user = User.find(params[:id])
end

# POST /users
# POST /users.json
def create
@user = User.new(params[:user])

respond_to do |format|
  if @user.save
   if @user.Notification then
     UserMailer.welcome_email(@user).deliver
  end

    format.html { redirect_to(@user, :notice => 'User was successfully created.') }
    format.json { render :json => @user, :status => :created, :location => @user }
  else
    format.html { render :action => "new" }
    format.json { render :json => @user.errors, :status => :unprocessable_entity }
  end
end
end

# PUT /users/1
# PUT /users/1.json
def update
@user = User.find(params[:id])

respond_to do |format|


    format.html { redirect_to @user, notice: 'User was successfully updated.' }
    format.json { head :no_content }
  else
    format.html { render action: "edit" }
    format.json { render json: @user.errors, status: :unprocessable_entity }
  end
end
end

# DELETE /users/1
# DELETE /users/1.json
def destroy
@user = User.find(params[:id])
respond_to do |format|
  if @user.destroy
    # Tell the UserMailer to send a welcome Email after save
    UserMailer.welcome_email(@user).deliver

    format.html { redirect_to(@user, :notice => 'User was successfully created.') }
    format.json { render :json => @user, :status => :created, :location => @user }
  else
    format.html { render :action => "new" }
    format.json { render :json => @user.errors, :status => :unprocessable_entity }
  end
end
end

end

这是我的 _form.html

<%= form_for(@user) do |f| %>
<% if @user.errors.any? %>
<div id="error_explanation">
  <h2><%= pluralize(@user.errors.count, "error") %> prohibited this user from being saved:</h2>

  <ul>
  <% @user.errors.full_messages.each do |msg| %>
    <li><%= msg %></li>
  <% end %>
  </ul>
</div>
<% end %>

<div class="field">
<%= f.label :name %><br />
<%= f.text_field :name %>
</div>
<div class="field">
<%= f.label :email %><br />
<%= f.text_field :email %>
</div>
<div class="field">
<%= f.label :login %><br />
<%= f.text_field :login %>
</div>

<%= f.radio_button(:Notification, "True") %>
<%= f.label(:Notification_True, "True") %>
<br />
<%= f.radio_button(:Notification, "False") %>
<%= f.label(:Notification_False, "False") %>
<div class="actions">

<%= f.submit %>
</div>
<% end %>

我已将 Notification 属性添加到我的模型 User 中，该属性是单选按钮的布尔类型。