Ruby on rails 如何按节对类别进行排序

如何按类别各自的部分对类别进行排序

像语言部分有英语，阿拉伯语，西班牙语等。我想显示标题部分名称，其类别作为复选框。这是我的密码

app/models/profile.rb

app/models/category.rb

app/models/section.rb

app/views/profiles/_form.html.rb

---

如果您希望按节对类别进行排序，则节应该是outter迭代的标准。 请尝试下面的代码片段

<% Section.all.each do |section| %>
    <% section.categories.each do |category| %>
      <%= check_box_tag "profile[category_ids][]", category.id, @profile.category_ids.include?(category.id), id: dom_id(category) %>
      <%= label_tag dom_id(category), category.name %><br>
    <% end %>
<% end %>

---

谢谢James，我会按照你的更新风格发布问题。

class category < ActiveRecord::Base
  belongs_to :section
  has_many :categorizations
  has_many :profiles, through: :categorizations
end

class Section < ActiveRecord::Base
  has_many :categories
end

<div class="field">
  <%= hidden_field_tag "profile[category_ids][]", nil %>
  <% Category.all.each do |category| %>
    <%= check_box_tag "profile[category_ids][]", category.id, @profile.category_ids.include?(category.id), id: dom_id(category) %>
    <%= label_tag dom_id(category), category.name %><br>
  <% end %>
</div>

<% Section.all.each do |section| %>
    <% section.categories.each do |category| %>
      <%= check_box_tag "profile[category_ids][]", category.id, @profile.category_ids.include?(category.id), id: dom_id(category) %>
      <%= label_tag dom_id(category), category.name %><br>
    <% end %>
<% end %>