问题

我有多个具有相同属性的选择字段，但属性只能检测到第一个选择字段，这当然不是我想要的。

视图：

```html
&lt;div class=&quot;dispo&quot;&gt;
  &lt;div class=&quot;di-in&quot;&gt;
    &lt;%= form.select :disponibilities, [[&quot;6&quot;, &quot;6&quot;], [&quot;7&quot;, &quot;7&quot;], [&quot;8&quot;, &quot;8&quot;],  [&quot;9&quot;, &quot;9&quot;],  [&quot;10&quot;, &quot;10&quot;],  [&quot;11&quot;, &quot;11&quot;],  [&quot;12&quot;, &quot;12&quot;],  [&quot;13&quot;, &quot;13&quot;],  [&quot;14&quot;, &quot;14&quot;],  [&quot;15&quot;, &quot;15&quot;],  [&quot;16&quot;, &quot;16&quot;],  [&quot;17&quot;, &quot;17&quot;],  [&quot;18&quot;, &quot;18&quot;],  [&quot;19&quot;, &quot;19&quot;],  [&quot;20&quot;, &quot;20&quot;]] %&gt; 
    -
    &lt;%= form.select :disponibilities, [[&quot;6&quot;, &quot;6&quot;], [&quot;7&quot;, &quot;7&quot;], [&quot;8&quot;, &quot;8&quot;],  [&quot;9&quot;, &quot;9&quot;],  [&quot;10&quot;, &quot;10&quot;],  [&quot;11&quot;, &quot;11&quot;],  [&quot;12&quot;, &quot;12&quot;],  [&quot;13&quot;, &quot;13&quot;],  [&quot;14&quot;, &quot;14&quot;],  [&quot;15&quot;, &quot;15&quot;],  [&quot;16&quot;, &quot;16&quot;],  [&quot;17&quot;, &quot;17&quot;],  [&quot;18&quot;, &quot;18&quot;],  [&quot;19&quot;, &quot;19&quot;],  [&quot;20&quot;, &quot;20&quot;]] %&gt; 
  &lt;/div&gt;
  &lt;div class=&quot;di-in&quot;&gt;
    &lt;%= form.select :disponibilities, [[&quot;6&quot;, &quot;6&quot;], [&quot;7&quot;, &quot;7&quot;], [&quot;8&quot;, &quot;8&quot;],  [&quot;9&quot;, &quot;9&quot;],  [&quot;10&quot;, &quot;10&quot;],  [&quot;11&quot;, &quot;11&quot;],  [&quot;12&quot;, &quot;12&quot;],  [&quot;13&quot;, &quot;13&quot;],  [&quot;14&quot;, &quot;14&quot;],  [&quot;15&quot;, &quot;15&quot;],  [&quot;16&quot;, &quot;16&quot;],  [&quot;17&quot;, &quot;17&quot;],  [&quot;18&quot;, &quot;18&quot;],  [&quot;19&quot;, &quot;19&quot;],  [&quot;20&quot;, &quot;20&quot;]] %&gt; 
    -
    &lt;%= form.select :disponibilities, [[&quot;6&quot;, &quot;6&quot;], [&quot;7&quot;, &quot;7&quot;], [&quot;8&quot;, &quot;8&quot;],  [&quot;9&quot;, &quot;9&quot;],  [&quot;10&quot;, &quot;10&quot;],  [&quot;11&quot;, &quot;11&quot;],  [&quot;12&quot;, &quot;12&quot;],  [&quot;13&quot;, &quot;13&quot;],  [&quot;14&quot;, &quot;14&quot;],  [&quot;15&quot;, &quot;15&quot;],  [&quot;16&quot;, &quot;16&quot;],  [&quot;17&quot;, &quot;17&quot;],  [&quot;18&quot;, &quot;18&quot;],  [&quot;19&quot;, &quot;19&quot;],  [&quot;20&quot;, &quot;20&quot;]] %&gt; 
  &lt;/div&gt;
  ...
&lt;/div&gt;

我的information_trainer.rb：

```ruby
class InformationTrainer &lt; ApplicationRecord
    belongs_to :account
    has_many :disponibilitiess
end

我添加了has_many关联，但在控制台中提交表单时仍然会渲染出“6”。我希望它能记住每个选择的数字。有人知道如何修复这个问题吗？


<details>
<summary>英文:</summary>
I have multiple select fields with the same attribute on each select field, though the attribute only detects the first select field which of course i don&#39;t want.
the view :
```html
&lt;div class=&quot;dispo&quot;&gt;
&lt;div class=&quot;di-in&quot;&gt;
&lt;%= form.select :disponibilities, [[&quot;6&quot;, &quot;6&quot;], [&quot;7&quot;, &quot;7&quot;], [&quot;8&quot;, &quot;8&quot;],  [&quot;9&quot;, &quot;9&quot;],  [&quot;10&quot;, &quot;10&quot;],  [&quot;11&quot;, &quot;11&quot;],  [&quot;12&quot;, &quot;12&quot;],  [&quot;13&quot;, &quot;13&quot;],  [&quot;14&quot;, &quot;14&quot;],  [&quot;15&quot;, &quot;15&quot;],  [&quot;16&quot;, &quot;16&quot;],  [&quot;17&quot;, &quot;17&quot;],  [&quot;18&quot;, &quot;18&quot;],  [&quot;19&quot;, &quot;19&quot;],  [&quot;20&quot;, &quot;20&quot;]] %&gt; 
-
&lt;%= form.select :disponibilities, [[&quot;6&quot;, &quot;6&quot;], [&quot;7&quot;, &quot;7&quot;], [&quot;8&quot;, &quot;8&quot;],  [&quot;9&quot;, &quot;9&quot;],  [&quot;10&quot;, &quot;10&quot;],  [&quot;11&quot;, &quot;11&quot;],  [&quot;12&quot;, &quot;12&quot;],  [&quot;13&quot;, &quot;13&quot;],  [&quot;14&quot;, &quot;14&quot;],  [&quot;15&quot;, &quot;15&quot;],  [&quot;16&quot;, &quot;16&quot;],  [&quot;17&quot;, &quot;17&quot;],  [&quot;18&quot;, &quot;18&quot;],  [&quot;19&quot;, &quot;19&quot;],  [&quot;20&quot;, &quot;20&quot;]] %&gt; 
&lt;/div&gt;
&lt;div class=&quot;di-in&quot;&gt;
&lt;%= form.select :disponibilities, [[&quot;6&quot;, &quot;6&quot;], [&quot;7&quot;, &quot;7&quot;], [&quot;8&quot;, &quot;8&quot;],  [&quot;9&quot;, &quot;9&quot;],  [&quot;10&quot;, &quot;10&quot;],  [&quot;11&quot;, &quot;11&quot;],  [&quot;12&quot;, &quot;12&quot;],  [&quot;13&quot;, &quot;13&quot;],  [&quot;14&quot;, &quot;14&quot;],  [&quot;15&quot;, &quot;15&quot;],  [&quot;16&quot;, &quot;16&quot;],  [&quot;17&quot;, &quot;17&quot;],  [&quot;18&quot;, &quot;18&quot;],  [&quot;19&quot;, &quot;19&quot;],  [&quot;20&quot;, &quot;20&quot;]] %&gt; 
-
&lt;%= form.select :disponibilities, [[&quot;6&quot;, &quot;6&quot;], [&quot;7&quot;, &quot;7&quot;], [&quot;8&quot;, &quot;8&quot;],  [&quot;9&quot;, &quot;9&quot;],  [&quot;10&quot;, &quot;10&quot;],  [&quot;11&quot;, &quot;11&quot;],  [&quot;12&quot;, &quot;12&quot;],  [&quot;13&quot;, &quot;13&quot;],  [&quot;14&quot;, &quot;14&quot;],  [&quot;15&quot;, &quot;15&quot;],  [&quot;16&quot;, &quot;16&quot;],  [&quot;17&quot;, &quot;17&quot;],  [&quot;18&quot;, &quot;18&quot;],  [&quot;19&quot;, &quot;19&quot;],  [&quot;20&quot;, &quot;20&quot;]] %&gt; 
&lt;/div&gt;
&lt;div class=&quot;di-in&quot;&gt;
&lt;%= form.select :disponibilities, [[&quot;6&quot;, &quot;6&quot;], [&quot;7&quot;, &quot;7&quot;], [&quot;8&quot;, &quot;8&quot;],  [&quot;9&quot;, &quot;9&quot;],  [&quot;10&quot;, &quot;10&quot;],  [&quot;11&quot;, &quot;11&quot;],  [&quot;12&quot;, &quot;12&quot;],  [&quot;13&quot;, &quot;13&quot;],  [&quot;14&quot;, &quot;14&quot;],  [&quot;15&quot;, &quot;15&quot;],  [&quot;16&quot;, &quot;16&quot;],  [&quot;17&quot;, &quot;17&quot;],  [&quot;18&quot;, &quot;18&quot;],  [&quot;19&quot;, &quot;19&quot;],  [&quot;20&quot;, &quot;20&quot;]] %&gt; 
-
&lt;%= form.select :disponibilities, [[&quot;6&quot;, &quot;6&quot;], [&quot;7&quot;, &quot;7&quot;], [&quot;8&quot;, &quot;8&quot;],  [&quot;9&quot;, &quot;9&quot;],  [&quot;10&quot;, &quot;10&quot;],  [&quot;11&quot;, &quot;11&quot;],  [&quot;12&quot;, &quot;12&quot;],  [&quot;13&quot;, &quot;13&quot;],  [&quot;14&quot;, &quot;14&quot;],  [&quot;15&quot;, &quot;15&quot;],  [&quot;16&quot;, &quot;16&quot;],  [&quot;17&quot;, &quot;17&quot;],  [&quot;18&quot;, &quot;18&quot;],  [&quot;19&quot;, &quot;19&quot;],  [&quot;20&quot;, &quot;20&quot;]] %&gt; 
&lt;/div&gt;
&lt;div class=&quot;di-in&quot;&gt;
&lt;%= form.select :disponibilities, [[&quot;6&quot;, &quot;6&quot;], [&quot;7&quot;, &quot;7&quot;], [&quot;8&quot;, &quot;8&quot;],  [&quot;9&quot;, &quot;9&quot;],  [&quot;10&quot;, &quot;10&quot;],  [&quot;11&quot;, &quot;11&quot;],  [&quot;12&quot;, &quot;12&quot;],  [&quot;13&quot;, &quot;13&quot;],  [&quot;14&quot;, &quot;14&quot;],  [&quot;15&quot;, &quot;15&quot;],  [&quot;16&quot;, &quot;16&quot;],  [&quot;17&quot;, &quot;17&quot;],  [&quot;18&quot;, &quot;18&quot;],  [&quot;19&quot;, &quot;19&quot;],  [&quot;20&quot;, &quot;20&quot;]] %&gt; 
-
&lt;%= form.select :disponibilities, [[&quot;6&quot;, &quot;6&quot;], [&quot;7&quot;, &quot;7&quot;], [&quot;8&quot;, &quot;8&quot;],  [&quot;9&quot;, &quot;9&quot;],  [&quot;10&quot;, &quot;10&quot;],  [&quot;11&quot;, &quot;11&quot;],  [&quot;12&quot;, &quot;12&quot;],  [&quot;13&quot;, &quot;13&quot;],  [&quot;14&quot;, &quot;14&quot;],  [&quot;15&quot;, &quot;15&quot;],  [&quot;16&quot;, &quot;16&quot;],  [&quot;17&quot;, &quot;17&quot;],  [&quot;18&quot;, &quot;18&quot;],  [&quot;19&quot;, &quot;19&quot;],  [&quot;20&quot;, &quot;20&quot;]] %&gt; 
&lt;/div&gt;
&lt;div class=&quot;di-in&quot;&gt;
&lt;%= form.select :disponibilities, [[&quot;6&quot;, &quot;6&quot;], [&quot;7&quot;, &quot;7&quot;], [&quot;8&quot;, &quot;8&quot;],  [&quot;9&quot;, &quot;9&quot;],  [&quot;10&quot;, &quot;10&quot;],  [&quot;11&quot;, &quot;11&quot;],  [&quot;12&quot;, &quot;12&quot;],  [&quot;13&quot;, &quot;13&quot;],  [&quot;14&quot;, &quot;14&quot;],  [&quot;15&quot;, &quot;15&quot;],  [&quot;16&quot;, &quot;16&quot;],  [&quot;17&quot;, &quot;17&quot;],  [&quot;18&quot;, &quot;18&quot;],  [&quot;19&quot;, &quot;19&quot;],  [&quot;20&quot;, &quot;20&quot;]] %&gt; 
-
&lt;%= form.select :disponibilities, [[&quot;6&quot;, &quot;6&quot;], [&quot;7&quot;, &quot;7&quot;], [&quot;8&quot;, &quot;8&quot;],  [&quot;9&quot;, &quot;9&quot;],  [&quot;10&quot;, &quot;10&quot;],  [&quot;11&quot;, &quot;11&quot;],  [&quot;12&quot;, &quot;12&quot;],  [&quot;13&quot;, &quot;13&quot;],  [&quot;14&quot;, &quot;14&quot;],  [&quot;15&quot;, &quot;15&quot;],  [&quot;16&quot;, &quot;16&quot;],  [&quot;17&quot;, &quot;17&quot;],  [&quot;18&quot;, &quot;18&quot;],  [&quot;19&quot;, &quot;19&quot;],  [&quot;20&quot;, &quot;20&quot;]] %&gt; 
&lt;/div&gt;
&lt;div class=&quot;di-in&quot;&gt;
&lt;%= form.select :disponibilities, [[&quot;6&quot;, &quot;6&quot;], [&quot;7&quot;, &quot;7&quot;], [&quot;8&quot;, &quot;8&quot;],  [&quot;9&quot;, &quot;9&quot;],  [&quot;10&quot;, &quot;10&quot;],  [&quot;11&quot;, &quot;11&quot;],  [&quot;12&quot;, &quot;12&quot;],  [&quot;13&quot;, &quot;13&quot;],  [&quot;14&quot;, &quot;14&quot;],  [&quot;15&quot;, &quot;15&quot;],  [&quot;16&quot;, &quot;16&quot;],  [&quot;17&quot;, &quot;17&quot;],  [&quot;18&quot;, &quot;18&quot;],  [&quot;19&quot;, &quot;19&quot;],  [&quot;20&quot;, &quot;20&quot;]] %&gt; 
-
&lt;%= form.select :disponibilities, [[&quot;6&quot;, &quot;6&quot;], [&quot;7&quot;, &quot;7&quot;], [&quot;8&quot;, &quot;8&quot;],  [&quot;9&quot;, &quot;9&quot;],  [&quot;10&quot;, &quot;10&quot;],  [&quot;11&quot;, &quot;11&quot;],  [&quot;12&quot;, &quot;12&quot;],  [&quot;13&quot;, &quot;13&quot;],  [&quot;14&quot;, &quot;14&quot;],  [&quot;15&quot;, &quot;15&quot;],  [&quot;16&quot;, &quot;16&quot;],  [&quot;17&quot;, &quot;17&quot;],  [&quot;18&quot;, &quot;18&quot;],  [&quot;19&quot;, &quot;19&quot;],  [&quot;20&quot;, &quot;20&quot;]] %&gt; 
&lt;/div&gt;
&lt;div class=&quot;di-in&quot;&gt;
&lt;%= form.select :disponibilities, [[&quot;6&quot;, &quot;6&quot;], [&quot;7&quot;, &quot;7&quot;], [&quot;8&quot;, &quot;8&quot;],  [&quot;9&quot;, &quot;9&quot;],  [&quot;10&quot;, &quot;10&quot;],  [&quot;11&quot;, &quot;11&quot;],  [&quot;12&quot;, &quot;12&quot;],  [&quot;13&quot;, &quot;13&quot;],  [&quot;14&quot;, &quot;14&quot;],  [&quot;15&quot;, &quot;15&quot;],  [&quot;16&quot;, &quot;16&quot;],  [&quot;17&quot;, &quot;17&quot;],  [&quot;18&quot;, &quot;18&quot;],  [&quot;19&quot;, &quot;19&quot;],  [&quot;20&quot;, &quot;20&quot;]] %&gt; 
-
&lt;%= form.select :disponibilities, [[&quot;6&quot;, &quot;6&quot;], [&quot;7&quot;, &quot;7&quot;], [&quot;8&quot;, &quot;8&quot;],  [&quot;9&quot;, &quot;9&quot;],  [&quot;10&quot;, &quot;10&quot;],  [&quot;11&quot;, &quot;11&quot;],  [&quot;12&quot;, &quot;12&quot;],  [&quot;13&quot;, &quot;13&quot;],  [&quot;14&quot;, &quot;14&quot;],  [&quot;15&quot;, &quot;15&quot;],  [&quot;16&quot;, &quot;16&quot;],  [&quot;17&quot;, &quot;17&quot;],  [&quot;18&quot;, &quot;18&quot;],  [&quot;19&quot;, &quot;19&quot;],  [&quot;20&quot;, &quot;20&quot;]] %&gt; 
&lt;/div&gt;
&lt;/div&gt;

my information_trainer.rb

class InformationTrainer &lt; ApplicationRecord
belongs_to :account
has_many :disponibilitiess
end

I added the has_many association but still it renders me "6" in the console when I submit the form, I want it to memorise every selected number. Anyone has an idea how to fix this ?

答案1

得分: 1

如果您需要 params => {"disponibilities"=>["1", "2", "3", "4"]}，那么您的选择标签 name 需要以 [] 结尾，这在选择标签上感觉有点奇怪：

&lt;%= form_with url: &quot;/&quot; do |f| %&gt;
  &lt;%= f.fields_for &quot;disponibilities&quot; do |ff| %&gt;
    &lt;%= ff.select &quot;&quot;, 1..10 %&gt;
    &lt;%= ff.select &quot;&quot;, 1..10 %&gt;
  &lt;% end %&gt;

  &lt;%= select_tag &quot;disponibilities[]&quot;, options_for_select(1..10) %&gt;
  &lt;%= select_tag &quot;disponibilities[]&quot;, options_for_select(1..10) %&gt;

  &lt;%= f.submit %&gt;
&lt;% end %&gt;

参数：{&quot;disponibilities&quot;=&gt;[&quot;4&quot;, &quot;3&quot;, &quot;10&quot;, &quot;9&quot;], &quot;commit&quot;=&gt;&quot;Save &quot;}

也许您想要复选框或实际的多选框。如果您尝试更改关联关系并且数字是 ID，请使用 disponibility_ids，但如果存在重复选择，则不会起作用，您可能需要拥有多对多关系（类似于此 https://stackoverflow.com/a/75972917/207090）：

&lt;%= f.collection_check_boxes &quot;disponibility_ids&quot;, 1..10, :to_s, :to_s %&gt;

&lt;%= f.select &quot;disponibility_ids&quot;, 1..10, {}, multiple: true %&gt;

https://api.rubyonrails.org/classes/ActionView/Helpers/FormBuilder.html

英文:

If you need params => {"disponibilities"=>["1", "2", "3", "4"]} then your select tag names need [] at the end, which feels weird on a select tag:

&lt;%= form_with url: &quot;/&quot; do |f| %&gt;
  &lt;%= f.fields_for &quot;disponibilities&quot; do |ff| %&gt;
    &lt;%= ff.select &quot;&quot;, 1..10 %&gt;
    &lt;%= ff.select &quot;&quot;, 1..10 %&gt;
  &lt;% end %&gt;

  &lt;%= select_tag &quot;disponibilities[]&quot;, options_for_select(1..10) %&gt;
  &lt;%= select_tag &quot;disponibilities[]&quot;, options_for_select(1..10) %&gt;

  &lt;%= f.submit %&gt;
&lt;% end %&gt;

Parameters: {&quot;disponibilities&quot;=&gt;[&quot;4&quot;, &quot;3&quot;, &quot;10&quot;, &quot;9&quot;], &quot;commit&quot;=&gt;&quot;Save &quot;}

Maybe you want checkboxes or an actual multiple select box. If you're trying to change associations and the numbers are ids use disponibility_ids, but it won't work if there are duplicate selections, and you probably need to have a many-to-many relationship (like this https://stackoverflow.com/a/75972917/207090)

&lt;%= f.collection_check_boxes &quot;disponibility_ids&quot;, 1..10, :to_s, :to_s %&gt;

&lt;%= f.select &quot;disponibility_ids&quot;, 1..10, {}, multiple: true %&gt;

https://api.rubyonrails.org/classes/ActionView/Helpers/FormBuilder.html

通过集体智慧和协作来改善编程学习和解决问题的方式。致力于成为全球开发者共同参与的知识库，让每个人都能够通过互相帮助和分享经验来进步。

多选字段用于一个属性 Rails 7

问题

答案1

从Rails请求中提取实际的POST参数

配置Rails控制台的默认日期时间格式。

没有运行以’/home/deploy/phjnew’路径开头的Phusion Passenger(R)服务的应用程序。

关联操作发出关于合并相同列上的条件不再维护两个条件的弃用警告。

What's the correct way to type hint an empty list as a literal in python?

如何在Highcharts Gantt中更改本地化的星期名称

如何在同一个流中使用多个过滤器和映射函数？

如何使用Map/Set来将代码优化到O(n)？

.NET MAUI Android在GitHub Actions上构建失败，错误代码为1。

如何在Playwright视觉比较中屏蔽多个定位器？

在C++中，可以使用可变模板参数来检索类型的内部类型。

selenium.common.exceptions.StaleElementReferenceException: Message: stale element reference: stale element not found

Creating and opening a URL to log in to Website via Basic Auth with Robot Framework/Selenium (Python)

AG Grid 在上下文菜单中以大文本形式打开

发表评论