Rails 子集选择始终返回 true

发布于 2024-09-13 01:28:06 字数 649 浏览 3 评论 0原文

我正在尝试在数据集中搜索值。如果数据集包含该值，则应用程序会执行某些操作。如果没有，应用程序会执行其他操作。

数据分解如下：我有附属机构和用户，每个都与另一个具有 HABTM 关系。我有一个页面，用户可以在其中注册附属机构，这些附属机构显示为一组复选框。

我希望选中用户当前注册的所有联营公司的复选框。

这是视图的代码（在 HAML 中）

- @affiliates.each do |a|
  %li
    %label{ :for => "affiliate_#{a.id}"}= a.name
    - if @current_user.affiliates.select{ |ua| ua.id == a.id }
      = check_box_tag "affiliate_list[#{a.id}]", 1, true, {:id => "affiliate_#{a.id}"}
    - else
      = check_box_tag "affiliate_list[#{a.id}]", 1, false, {:id => "affiliate_#{a.id}"}

该代码始终返回 true，因此即使用户尚未注册附属机构，也会选中复选框。

我查找了 .select 方法，但我不断想出表单助手的东西。

原文

I am trying to search a dataset for a value. If the dataset contains the value, the app does something. If it does not, the app does something else.

The data breaks down like this: I have affiliates and users, each with a HABTM relationship to the other. I have a page where the user can sign up for affiliates, which are displayed as a group of checkboxes.

I want the checkboxes for all the affiliates a user has currently signed up for checked.

Here's the code for the view (in HAML)

- @affiliates.each do |a|
  %li
    %label{ :for => "affiliate_#{a.id}"}= a.name
    - if @current_user.affiliates.select{ |ua| ua.id == a.id }
      = check_box_tag "affiliate_list[#{a.id}]", 1, true, {:id => "affiliate_#{a.id}"}
    - else
      = check_box_tag "affiliate_list[#{a.id}]", 1, false, {:id => "affiliate_#{a.id}"}

This code always returning true, and thus, checks boxes, even if a user has not signed up for an affiliate.

I looked up the .select method, but I keep coming up with the form helper stuff.

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