ruby-on-rails – “表单提交”按钮仅在重新加载后才起作用

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前端之家收集整理的这篇文章主要介绍了ruby-on-rails – “表单提交”按钮仅在重新加载后才起作用，前端之家小编觉得挺不错的，现在分享给大家，也给大家做个参考。
我有一个建立表的索引页,我试图允许用户在表中编辑行.我试图以最基本的方式这样做 – 没有 javascript,ajax等,除非Rails提供它.

我的表在索引方法中显示正常,并且有一个表格作为表中的最后一行,可用于添加新行.新表格工作正常.每行都有一个编辑链接,路由到控制器的编辑方法.控制器设置要编辑的对象,并使用要编辑的行中的表单呈现索引.我的问题是这个表单不会提交,但如果我刷新页面,它将提交.

页面将在刷新后提交的事实非常混乱.我不会看到刷新会做什么不同,然后点击链接(它仍然应该通过相同的路由,相同的变量是正确的),我看不到在刷新之前和之后的形式的任何区别.有什么想法可能发生什么？

我不知道什么代码甚至开始寻找,但在这里;

index.html.erb

...
<tbody>
  <% @boms.each do |line| %>
   <% if line == @bom %>
     <%= render("form_in_table",form_objects: @bom,button_text: "Update") %>
    <% else %>
      <%= render("bom_in_table",line: line) %>
    <% end %>
  <% end %>
  <% if @bom.new_record? %>
    <%= render("form_in_table",form_objects: [@li,@bom],button_text: "Add") %>
  <% end %>
</tbody>
...

_form_in_table.html.erb

<%= form_for(form_objects,html: {class: "form-in-table"}) do |f| %>
  <tr>
    <td><%= f.text_field :quantity %></td>
    <td colspan="2">
      <%= f.select(:part_id,options_from_collection_for_select(@parts,:id,:pricebook_name),prompt: "Select a Part",) %></td>
    <td></td>
    <td></td>
    <td></td>
    <td><%= f.submit(button_text,class: "btn btn-primary btn-mini") %></td>
  </tr>
<% end %>

_bom_in_table.html.erb

<tr>
  <td><%= line.quantity%></td>
  <td><%= line.part_number %></td>
  <td><%= line.part_description %></td>
  <td><%= number_to_currency(line.part_cost) %></td>
  <td><%= line.part_unit %></td>
  <td><%= number_to_currency(line.extension) %></td>
  <td><%= link_to('Edit',edit_bom_path(line)) %></td>
</tr>

boms_controller.rb

...
def edit
  @bom = Bom.find(params[:id])
  @li = @bom.line_item
  @boms = @li.boms.sorted_by_part_number
  @parts = Part.sorted_by_number
  render 'index'
end
...

如果这对解密代码/意图很有用,我有一些line_items,part和boms的集合; line_item有很多boms,而line_item有很多部分通过boms.除了零件/订单项关系外,bom有一个数量. BOM是材料清单的缩写. @li是被操纵的line_item.我遇到的形式是查看/添加/编辑属于订单项的bom(数量和部分)的集合.

添加日志

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Processing by BomsController#index as HTML
  Parameters: {"line_item_id"=>"8"}
  [1m[35mLineItem Load (0.0ms)[0m  SELECT "line_items".* FROM "line_items" WHERE "line_items"."id" = ? LIMIT 1  [["id","8"]]
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  Rendered shared/_error_messages.html.erb (3.0ms)
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  [1m[35mPart Load (0.0ms)[0m  SELECT "parts".* FROM "parts" WHERE "parts"."id" = ? ORDER BY "parts"."id" ASC LIMIT 1  [["id",1]]
  Rendered boms/_bom_in_table.html.erb (96.0ms)
  [1m[36mPart Load (1.0ms)[0m  [1mSELECT "parts".* FROM "parts" ORDER BY "parts".number ASC[0m
  Rendered boms/_form_in_table.html.erb (103.0ms)
  [1m[35m (24.0ms)[0m  SELECT SUM(quantity * cost) AS sum_id FROM "parts" INNER JOIN "boms" ON "boms"."part_id" = "parts"."id" WHERE "boms"."line_item_id" = 8
  Rendered boms/index.html.erb within layouts/boms (477.0ms)
  Rendered layouts/_shim.html.erb (1.0ms)
  Rendered layouts/_header.html.erb (0.0ms)
  Rendered layouts/_footer.html.erb (0.0ms)
  Rendered layouts/application.html.erb (69.0ms)
Completed 200 OK in 671ms (Views: 601.0ms | ActiveRecord: 31.0ms)


Started GET "/boms/22/edit" for 127.0.0.1 at 2013-10-14 14:28:13 -0400
Processing by BomsController#edit as HTML
  Parameters: {"id"=>"22"}
  [1m[36mBom Load (0.0ms)[0m  [1mSELECT "boms".* FROM "boms" WHERE "boms"."id" = ? LIMIT 1[0m  [["id","22"]]
  [1m[35mLineItem Load (1.0ms)[0m  SELECT "line_items".* FROM "line_items" WHERE "line_items"."id" = ? ORDER BY "line_items"."id" ASC LIMIT 1  [["id",8]]
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  [1m[35mLineItemClass Load (0.0ms)[0m  SELECT "line_item_classes".* FROM "line_item_classes" WHERE "line_item_classes"."id" = ? ORDER BY "line_item_classes"."id" ASC LIMIT 1  [["id",1]]
  Rendered shared/_error_messages.html.erb (0.0ms)
  [1m[36mBom Load (1.0ms)[0m  [1mSELECT "boms".* FROM "boms" INNER JOIN "parts" ON "parts"."id" = "boms"."part_id" WHERE "boms"."line_item_id" = ? ORDER BY "parts".number ASC[0m  [["line_item_id",8]]
  [1m[35mPart Load (0.0ms)[0m  SELECT "parts".* FROM "parts" ORDER BY "parts".number ASC
  Rendered boms/_form_in_table.html.erb (25.0ms)
  [1m[36m (0.0ms)[0m  [1mSELECT SUM(quantity * cost) AS sum_id FROM "parts" INNER JOIN "boms" ON "boms"."part_id" = "parts"."id" WHERE "boms"."line_item_id" = 8[0m
  Rendered boms/index.html.erb within layouts/boms (41.0ms)
  Rendered layouts/_shim.html.erb (0.0ms)
  Rendered layouts/_header.html.erb (1.0ms)
  Rendered layouts/_footer.html.erb (0.0ms)
  Rendered layouts/application.html.erb (54.0ms)
Completed 200 OK in 113ms (Views: 104.0ms | ActiveRecord: 3.0ms)


Started GET "/boms/22/edit" for 127.0.0.1 at 2013-10-14 14:28:37 -0400
Processing by BomsController#edit as HTML
  Parameters: {"id"=>"22"}
  [1m[35mBom Load (0.0ms)[0m  SELECT "boms".* FROM "boms" WHERE "boms"."id" = ? LIMIT 1  [["id","22"]]
  [1m[36mLineItem Load (0.0ms)[0m  [1mSELECT "line_items".* FROM "line_items" WHERE "line_items"."id" = ? ORDER BY "line_items"."id" ASC LIMIT 1[0m  [["id",8]]
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  [1m[36mLineItemClass Load (1.0ms)[0m  [1mSELECT "line_item_classes".* FROM "line_item_classes" WHERE "line_item_classes"."id" = ? ORDER BY "line_item_classes"."id" ASC LIMIT 1[0m  [["id",1]]
  Rendered shared/_error_messages.html.erb (0.0ms)
  [1m[35mBom Load (1.0ms)[0m  SELECT "boms".* FROM "boms" INNER JOIN "parts" ON "parts"."id" = "boms"."part_id" WHERE "boms"."line_item_id" = ? ORDER BY "parts".number ASC  [["line_item_id",8]]
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  Rendered boms/_form_in_table.html.erb (5.0ms)
  [1m[35m (0.0ms)[0m  SELECT SUM(quantity * cost) AS sum_id FROM "parts" INNER JOIN "boms" ON "boms"."part_id" = "parts"."id" WHERE "boms"."line_item_id" = 8
  Rendered boms/index.html.erb within layouts/boms (27.0ms)
  Rendered layouts/_shim.html.erb (1.0ms)
  Rendered layouts/_header.html.erb (8.0ms)
  Rendered layouts/_footer.html.erb (0.0ms)
  Rendered layouts/application.html.erb (60.0ms)
Completed 200 OK in 131ms (Views: 94.0ms | ActiveRecord: 2.0ms)


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解决方法

我相信这是一个HTML问题,而不是Rails问题.根据这个讨论 Form inside a table,< form>不能放在< table>或< tbody>或< tr&gt ;.移动< form>包装桌子并将控件放在相应的< td>表单工作.

我仍然不明白为什么刷新页面使表单工作,但…

原文链接：https://www.f2er.com/ruby/273054.html

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