Question

所以，我在rails中遇到了一个问题，即在更新时并非所有参数都传递给控制器。这是has_many通过关系，我正在尝试更新连接表。

第一个模型如下：

class UserProfile < ApplicationRecord
  belongs_to :user
  belongs_to :profession
  has_many :competencies, dependent: :destroy
  has_many :procedure_categories, through: :profession
  has_many :procedures, through: :competencies

  accepts_nested_attributes_for :procedures
  # required so that compentencies controller can save to the join table
  accepts_nested_attributes_for :competencies

联接模式：

class Competency < ApplicationRecord
  belongs_to :user_profile
  belongs_to :procedure
end

我的表格：

<div class="row">
  <div class="col-md-6 col-md-offset-3">
    <p>Define your competencies details here.</p>
    <%= form_for @user_profile do |user_profile_form| %>

      <% @user_profile.procedure_categories.each do |procedure_category| %>
        <h2><%= procedure_category.category %></h2>

          <%= user_profile_form.fields_for :competency do |cf| %> 
              <% competencies = @user_profile.competencies.where(procedure_id: procedure_category.procedures)
                if competencies.count > 0
              %>
                  <table class='table'>
                    <thead>
                      <tr>
                        <th>Competency</th>
                        <th>Years experience</th>
                        <th>Time it takes to complete</th>
                        <th>Do you want to do this?</th>
                      </tr>
                    </thead>
                    <tbody class="categories">
                      <% competencies.each do |competency| %>
                        <tr>
                          <td><%= competency.id %></td>
                          <td><%= cf.text_field :time, id: :competency_id, class: 'form-control' %></td>
                          <td><%= cf.text_field :rating, id: :competency_id, class: 'form-control' %></td>
                          <td>TBD</td>
                        </tr>
                      <% end %>
                    </tbody>
                  </table>

我的参数：

Parameters: {"utf8"=>"✓", "authenticity_token"=>"onUmLRzPiJZmdSvd5PvG4zlskkn2I7FEfy7EgigcCHFFrC8/txI5a+wz6KTklFX80DGKNkZ/+7RYxPdCS8+nTA==", "user_profile"=>{"competency"=>{"time"=>"500", "rating"=>"500"}}, "commit"=>"Save competencies", "id"=>"11"}

当我检查HTML时，我看到了：

<tbody class="categories">
   <tr>
      <td>17</td>
      <td><input id="competency_id" class="form-control" type="text" name="user_profile[competency][time]" /></td>
      <td><input id="competency_id" class="form-control" type="text" name="user_profile[competency][rating]" /></td>
      <td></td>
   </tr>
   <tr>
       <td>19</td>
       <td><input id="competency_id" class="form-control" type="text" name="user_profile[competency][time]" /></td>
       <td><input id="competency_id" class="form-control" type="text" name="user_profile[competency][rating]" /></td>
       <td></td>
   </tr>
   <tr>
       <td>20</td>
       <td><input id="competency_id" class="form-control" type="text" name="user_profile[competency][time]" /></td>
       <td><input id="competency_id" class="form-control" type="text" name="user_profile[competency][rating]" /></td>
       <td></td>
    </tr>
</tbody>

因此，从生成的HTML中，我认为问题是我的所有参数看起来都一样。我需要以某种方式区分它们。

感谢您的帮助！

Answer 1

所以，如果我看得太久，我会弄明白的。问题主要在于我的fields_for语句。以下是完成工作的所有表单代码：

$PSVersionTable

使用fields_for时出现参数问题

1 个答案: