Form_for 使用 Ransack 生成的列表中的每一项

Question

用户流量：

1. 用户 POSTS 表单表明他们拥有哪些项目
2. 用户在您拥有 ItemName（刚刚提交的属性）和 Description（他们之前未要求的属性）的列中看到他们提交的项目列表
3. 在此项目列表中，如果用户愿意，我现在想为用户提供修补说明的机会

额外的一点是视图中呈现的项目列表可以通过 Ransack gem 排序。所以问题是，在下面表单代码的 sn-p 中，如果@inventories 是 Ransack 使列表可在操作 'new '?

@inventories.each do |inventory|
form_for inventory do |f|
f.text_field ...

现在表单和所有内容都正确加载，但提交的描述没有在任何地方得到修补。

更多上下文和完整代码：

控制器代码：

def new
  #initializes the parent object needed to create the initial inventory of items
  @signup_parent = Signup.find_by_email(session[:signup_email])

  #required by Ransack gem to display results
  @q = @signup_parent.inventories.ransack(params[:q])
  @inventories = @q.result.includes(:signup)
end

def create
  @signup_parent = Signup.find_by_email(session[:signup_email])
  items_to_be_saved = []
  #at some point array is populated with list of items user selects in form
  @signup_parent.inventories.create items_to_be_saved
end

def update
  #since the form_fors are generated by an each do that simultaneously creates forms and generates list of existing items, I figured I'd need to follow the same convention as the 'new' action
  @signup_parent = Signup.find_by_email(session[:signup_email])
  @q = @signup_parent.inventories.ransack(params[:q])
  @inventories = @q.result.includes(:signup)
  redirect_to :action => 'new'
end

查看代码：

<% if @signup_parent.inventories.count > 0 %>

<div class="table-responsive">
  <table class="table table-condensed table-hover">
    <thead>
      <tr>
        <th><%= sort_link(@q, :item_name, "Item") %></th>
        <th>Description</th>
        <th colspan="5"></th>
      </tr>
    </thead>

    <tbody>
      <% @inventories.each do |inventory| %>
        <tr>
          <td><%= inventory.item_name %></td>
          <td>
            <% if inventory.description.blank? %>
              <%= form_for inventory, url: {action: 'update'}, :html => {:class => "form-inline"} do |f| %> 
                <div class="form-group col-xs-9">
                  <%= f.text_field :description, class: "form-control", placeholder: "Add description" %>
                </div>
                <div class="form-group col-xs-3">
                  <%= f.submit "Update", class: "btn btn-default btn-large btn-block" %>
                </div>
              <% end %>
            <% else %>
              <%= inventory.description %>
            <% end %>
          </td>
          <td>
            <% if inventory.description.present? %>
              <%= button_to %>
              <!-- no clue, separate question (but feel free to solve!) need this button to, 1) ideal solution: "reactivate" form with the description so that users can edit what they've put in, 2) hacky solution: delete the description entirely so that users will have to re-enter it in the form that renders once description is blank again -->
            <% end %>
            <%= button_to 'Remove', inventory, method: :delete, class: "btn btn-default btn-large btn-block" %>
          </td>
        </tr>
      <% end %>
    </tbody>
  </table>
</div>

<% else %>

<!-- if they don't have any items, they see the create form -->

<% end %>

路线

resources :inventories, only: [:new, :create, :destroy]
patch 'inventories', to: 'inventories#update'

Answer 1

如果它对其他人有帮助：

路线代码

resources :inventories, only: [:new, :create, :destroy]
patch 'inventories/:id/edit', to: 'inventories#update', as: 'edit_inventory'
patch 'inventories/:id/destroy_description', to: 'inventories#destroy_description', as: 'destroy_description'  

控制器代码

def update
  @inventory = Inventory.find(params[:id])
  @inventory.update_attributes(inventory_update_params)
  if request.referer.include? 'admin'
    redirect_to :action => 'index'
  else
    redirect_to :action => 'new'
  end
end

def destroy_description
  @inventory = Inventory.find(params[:id])
  @inventory.update_attributes(description: "")
  if request.referer.include? 'admin'
    redirect_to :action => 'index'
  else
    redirect_to :action => 'new'
  end
end

查看代码

<tbody>
  <% @inventories.each do |inventory| %>
    <tr>
      <td><%= inventory.signup.email %></td>
      <td><%= inventory.item_name %></td>
      <td>
        <% if inventory.description.blank? %>
          <%= form_for inventory, url: edit_inventory_path(inventory), method: :patch, :html => {:class => "form-inline", :autocomplete => "off"} do |f| %> 
            <div class="form-group col-xs-10" style="padding:1px;">
              <%= f.text_field :description, class: "form-control", placeholder: "Add a link or description" %>
            </div>
            <div class="form-group col-xs-2" style="padding:1px;">
              <%= f.submit "Add", class: "btn btn-default btn-default btn-block" %>
            </div>
          <% end %>
        <% else %>
          <%= inventory.description %>
        <% end %>
      </td>
      <td>
        <% if inventory.description.present? %>
          <div class="col-xs-6" style="padding:1px; ">
            <%= button_to 'New description', destroy_description_path(inventory), method: :patch, class: "btn btn-default btn-default btn-block" %>
          </div>
        <% end %>
          <div class="col-xs-6" style="padding:1px; ">
            <%= button_to 'Remove item', inventory, method: :delete, class: "btn btn-default btn-default btn-block", data: { confirm: 'Once removed, borrowers will no longer be able to see you have this item. To remove an item temporarily (i.e., for a personal trip), please notify us via email' } %>
          </div>
      </td>
    </tr>
  <% end %>
</tbody>