根据参数选择选择字段

发布于 2025-01-24 19:45:35 字数 561 浏览 3 评论 0原文

<%= select("category", "category_id", Category.all.collect { |p| [ p.title, p.id] },{include_blank: "All Category"},{class: "form-control"}  ) %>   

<div class="col-auto"> 
  <%= button_tag( class: "btn btn-sm btn-outline-primary btn-rounded search-button-style") do %>
    <i class="fa fa-search"></i>
    <span><%= I18n.t 'search' %></span>
  <% end %>
</div>

我有一个选择字段。我需要根据参数选择数据。我将在参数中获取category_id params [：category] [：category_id]

原文

<%= select("category", "category_id", Category.all.collect { |p| [ p.title, p.id] },{include_blank: "All Category"},{class: "form-control"}  ) %>   

<div class="col-auto"> 
  <%= button_tag( class: "btn btn-sm btn-outline-primary btn-rounded search-button-style") do %>
    <i class="fa fa-search"></i>
    <span><%= I18n.t 'search' %></span>
  <% end %>
</div>

I have a select field. I need to select the data based on params. I will be getting category_id in the params as params[:category][:category_id]

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在巴黎塔顶看东京樱花 2025-01-31 19:45:35

尝试以下操作：

<%= select("category", "category_id", Category.all.collect { |p| [ p.title, p.id] }, { include_blank: "All Category", selected: params[:category][:category_id] }, { class: "form-control" }) %>

选择方法在选项中选择选择作为选择的选项。

当为模型生成form时，该方法将自动选择选定选项。如果需要，您也可以使用select_tag像这样：

<%= select_tag("category_id", options_for_select(Category.all.collect { |p| [ p.title, p.id] }, params[:category][:category_id]), include_blank: "All Category", class: "form-control") %>

Try this:

<%= select("category", "category_id", Category.all.collect { |p| [ p.title, p.id] }, { include_blank: "All Category", selected: params[:category][:category_id] }, { class: "form-control" }) %>

The select method accepts selected in the options to choose one as selected.

This method is useful when generating a form for a model where it would autoselect the chosen option. You can also use select_tag like this if you wish:

<%= select_tag("category_id", options_for_select(Category.all.collect { |p| [ p.title, p.id] }, params[:category][:category_id]), include_blank: "All Category", class: "form-control") %>

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情定在深秋 2025-01-31 19:45:35

使用参数选择您可以设置应选择的值。

<%= select("category", "category_id", Category.all.collect { |p| [ p.title, p.id] },{include_blank: "All Category", selected: value},{class: "form-control"} ) %>

With the parameter selected you can set the value which should be selected.

<%= select("category", "category_id", Category.all.collect { |p| [ p.title, p.id] },{include_blank: "All Category", selected: value},{class: "form-control"} ) %>

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