通过复选框删除多个项目 [英] Delete multiple item by checkbox

问题描述

这是代码：

$

b $ b

 <％@ products.each do | p | ％> 
<％= check_box_tagproduct []，p.id％> 
< div class =product_image> 
<％= image_tag p.photo.url（：thumb），：alt => ＃{p.name}％> 
< / div> 
<％= link_to< h3>＃{p.name}< / h3> ，edit_product_path（p）％> 
< div class =product_desc> 
<％= h truncate（p.description.gsub（/<。*？> /，''），80）％> 
< / div> 
< div class =product_price> 
<％= h p.price％> 
< / div> 
< div class =product_categories> 
<％for p.categories.find（：all）％> 
<％= h category.name％> 
<％end％> 
< / div> 
< div id =produt_edit_nav> 
<％= link_to'Show'，product_path（p）％> 
<％= link_to'Edit'，edit_product_path（p）％> 
<％= link_to'Remove'，product_path（p），：confirm => 你真的要删除＃{p.name}？，：method => 'delete'％> 
< / div> 
<％end％> 
< div id =products_nav> 
<％= link_to添加新产品，new_product_path％> 
< / div> 
  

复选框给出了正确的值，但是：

1. 如何给他们不同的id值html代码，他们都有 id =product []？




2. 如何一次删除勾选的项目？

   此部分的含义： product []







解决方案

1：您可以通过将它们作为选项散列的一部分传递来创建自己的ID：

 <％= check_box_tagproduct_ids []，product.id，false，：id => product _＃{product.id}％> 
  

对于2和3，我建议您看看 this Railscast 。

I want have this ability to select multiple items with checkboxes and delete them in one place.

This is the code:

<% @products.each do |p| %>
<%= check_box_tag "product[]" , p.id %>
<div class="product_image">
    <%= image_tag p.photo.url(:thumb) , :alt => "#{p.name}" %>
</div>
<%= link_to "<h3>#{p.name}</h3>" , edit_product_path(p) %>
<div class="product_desc">
    <%=h truncate(p.description.gsub(/<.*?>/,''),80) %>
</div>
<div class="product_price">
    <%=h p.price %>
</div>
<div class="product_categories">
    <% for category in p.categories.find(:all) %>
        <%=h category.name %>
    <% end %>
</div>
<div id="produt_edit_nav">
    <%= link_to 'Show' , product_path(p) %>
    <%= link_to 'Edit', edit_product_path(p) %>
    <%= link_to 'Remove', product_path(p), :confirm => "Are you really want to delete #{p.name} ?", :method => 'delete' %>
</div>
<% end %>
<div id="products_nav">
    <%= link_to "Add a new Product" , new_product_path %>
</div>

The checkboxes give me right values, but:

1. How can I give them different id values for html code, all of them have id="product[]"?

2. How can I delete the checked items in one click?

3. Also, what's the meaning of this part: product[]?

解决方案

1: You can create your own Ids by passing them as part of the options hash:

<%= check_box_tag "product_ids[]", product.id, false, :id => "product_#{product.id}" %>

For 2 and 3 I'd recommend looking at this Railscast.

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