复选框选择和表单对象不保存 [英] Checkbox selection and form object do not save

问题描述

我有一个表单，其中包含：

• 两个复选框


• 地址

我不知道这是最好的设计，但是模型包含三个属性：

• email_name（类型字符串）


• send_once（type boolean）


• send_anytime ）

我想保存电子邮件地址，如果两个复选框之一填充，否则不保存任何内容。 >

一切似乎都按照我的预期工作，但是一旦我看到了rails控制台，注册模型是空的。

我的日志文件说：

 在2012-02-01 16:34发布127.0.0.1的POST/ pages ：55 -0500 
由PagesController处理＃创建为HTML 
参数：{utf8=>✓，authenticity_token=>WChW / OmDPS2Td1D3x / 36aCJj7V75FdiAPJ9AQvtAIS4 =，post => {email_address=>[e-mail]，send_once=>0，send_any_time=>1}，commit=>创建注册} 
（0.3ms）BEGIN 
（0.5ms）SELECT 1 FROMsignupsWHEREsignups。email_address=''LIMIT 1 
（0.3ms）ROLLBACK 
 pages / _form.html.erb（3.7ms）
  

如何解决这个问题？目前模式不保存。

注意：我创建了一个注册 code>对象在Pages控制器（think：newsletter）中。

$ b

  class PagesController< ApplicationController 
 def index 
 @signup = Signup.new 
 end 
 
 def create 
 @signup = Signup.new（params [：signup]）
 respond_to do | format | 
 if @ signup.save 
 format.html 
＃format.js 
 else 
 format.html {render action：：index} 
 end 
 end 
 end 
 end 
  

  class Signup< ActiveRecord :: Base 
 attr_accessible：email_address 
＃email_regex =提出一些东西
 validates：email_address，presence：true，
 #format：{with：email_regex}，唯一性：消息：只有一个你。} 
 end 
  

_ form.html.erb

 <％= form_for（@signup，as：：post，url：pages_path ）do | f | ％> 
<％if @ signup.errors.any？ ％> 
< div id =error_explanation> 
< p><％= pluralize（@ signup.errors.count，error）％>禁止保存此信息：< / p> 
< ul> 
<％@ signup.errors.full_messages.each do | user | ％> 
< li><％= user％>< / li> 
<％end％> 
< / ul> 
< / div> 
<％end％> 
 
< div class =field> 
<％= f.label：email_address％>< br /> 
<％= f.email_field：email_address％> 
<％= f.label：send_once％>< br /> 
<％= f.check_box：send_once％> 
<％= f.label：send_any_time％>< br /> 
<％= f.check_box：send_any_time％> 
 
< / div> 
 
< div class =actions> 
<％= f.submit％> 
< / div> 
<％end％> 
  

解决方案

您的参数正在传入：post和your create语句正在寻找params [：signup]。您需要更改控制器以查找params [：post]或更改您的表单以提交到params [：signup]。

 <％= form_for（@signup，as：：signup，url：pages_path）do | f | ％> 
  

您还需要添加一个检查复选框是否被选中的检查。
假设您的参数是：

 signup=> {email_address=>email @ examp .le，send_once=>0，send_any_time=>1} 
  

您需要：

  class PagesController< ApplicationController 
 def index 
 @signup = Signup.new 
 end 
 
 def create 
 @signup = Signup.new（params [：signup]）
 if @ signup.send_once ==1or @ signup.send_any_time ==1then 
 respond_to do | format | 
 if @ signup.save 
 format.html 
 else 
 format.html {render action：：index} 
 end 
 end 
 else 
＃如果他们没有注册，你想做什么？重定向到什么地方？ 
 end 
 end 
 end 
  

I have a form that includes:

• two checkboxes
• text field to gather email addresses

I am not sure if this is the best design, but the model contains three attributes:

• email_name (type string)
• send_once (type boolean)
• send_anytime (type boolean)

I would like to save the email address if either of the two checkboxes are filled otherwise don't save anything.

Everything appeared to be working as I expected, but once I looked inside the rails console, the signup model was empty.

My log file says this:

Started POST "/pages" for 127.0.0.1 at 2012-02-01 16:34:55 -0500
Processing by PagesController#create as HTML
Parameters: {"utf8"=>"✓",  "authenticity_token"=>"WChW/OmDPS2Td1D3x/36aCJj7V75FdiAPJ9AQvtAIS4=", "post"=>{"email_address"=>"[e-mail]", "send_once"=>"0", "send_any_time"=>"1"}, "commit"=>"Create Signup"}
(0.3ms)  BEGIN
(0.5ms)  SELECT 1 FROM "signups" WHERE "signups"."email_address" = '' LIMIT 1
(0.3ms)  ROLLBACK
Rendered pages/_form.html.erb (3.7ms)

How do I go about this? Currently the model does not save. So, specifically what should the model and the controller look like?

NOTE: I am creating a signup object inside of the Pages controller (think: newsletter).

Controller

class PagesController < ApplicationController
 def index
  @signup = Signup.new
 end

def create
 @signup = Signup.new(params[:signup])
 respond_to do |format| 
  if @signup.save
    format.html
    #format.js
  else
    format.html {render action: :index}
   end
  end
 end
end

Model

class Signup < ActiveRecord::Base
  attr_accessible :email_address
  # email_regex = come up with something
  validates :email_address, presence: true,
                        #format: {with: email_regex}, uniqueness: {message: 'there can only be one you.'}                                    
end

_form.html.erb

<%= form_for(@signup, as: :post, url: pages_path) do |f| %>
  <% if @signup.errors.any? %>
    <div id="error_explanation">
    <p><%= pluralize(@signup.errors.count, "error") %> prohibited this post from being saved:</p>
   <ul>
    <% @signup.errors.full_messages.each do |user| %>
    <li><%= user %></li>
    <% end %>
   </ul>
  </div>
 <% end %>

 <div class="field">
   <%= f.label :email_address %><br />
   <%= f.email_field :email_address %>
   <%= f.label :send_once %><br />
   <%= f.check_box :send_once %>
   <%= f.label :send_any_time %><br />
   <%= f.check_box :send_any_time %>

  </div>

  <div class="actions">
   <%= f.submit %>
  </div>
<% end %>

解决方案

Your params are being passed in as :post and your create statement is looking for params[:signup]. You either need to change your controller to look for params[:post] or change your form to submit to params[:signup].

<%= form_for(@signup, as: :signup, url: pages_path) do |f| %>

You'll also want to add a check for whether or not the checkboxes are checked.
Presuming your parameters are:

"signup"=>{"email_address"=>"[e-mail]", "send_once"=>"0", "send_any_time"=>"1"}

You'll want to do:

class PagesController < ApplicationController
  def index
   @signup = Signup.new
  end

  def create
    @signup = Signup.new(params[:signup])
    if @signup.send_once == "1" or @signup.send_any_time == "1" then
      respond_to do |format| 
        if @signup.save
          format.html
        else
          format.html {render action: :index}
        end
      end
    else
      # what do you want to do if they didn't sign up?  redirect somewhere?
    end
  end
end

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