Rails嵌套表单只传递表单提交的id

时间：2016-02-15 01:08:26

标签： ruby-on-rails ruby-on-rails-4 parameters controller nested-forms

不知道这里出了什么问题。从内存来看它曾经工作正常，但我最近才使用该表单，并意识到它已经停止在构建应用程序的过程中的某个地方工作。迷你测试仍然通过它，这可能意味着它是微不足道的或直接在表格上。

我正在尝试让嵌套属性value传递来自提交

category_item模型 

  has_many :category_item_values, dependent: :destroy
  accepts_nested_attributes_for :category_item_values

  extend FriendlyId
  friendly_id :name, use: :slugged

category_item_value模型 

  belongs_to :category_item

category_items / edit.html.erb 

   <%= form_for([@category, @category_item], url: category_items_update_path) do |f| %>
   <%= render 'shared/error_messages', object: f.object %>
   <%= f.fields_for :category_item_values do |item_value| %>


  <div class="value_fields">
  <%=  item_value.object.key %><br>
     <%= item_value.label :value %> 
     <%= item_value.text_field :value %>
  </div> 

    <% end %>

  <%= f.submit "Save"%>
  <% end %>

category_item控制器 

def edit

     @guide         = Guide.friendly.find(params[:guide_id])
     @category      = Category.friendly.find(params[:category_id])
     @category_item = @category.category_items.friendly.find params[:id]

end

def update


     @guide         = Guide.friendly.find(params[:guide_id])
     @category      = Category.friendly.find(params[:category_id])
     @category_item = @category.category_items.friendly.find params[:id]

    if @category_item.update (item_params)
      flash[:success] = "Updated. Thanks for contributing!"
      redirect_to category_items_show_path(@guide, @category, @category_item)
    else
      render 'edit'
    end

end

private

def item_params
   params.require(:category_item).permit(:name, category_item_values_attributes: [:id, :value])
end

提交表单时传递的parpamters 

 Parameters: {"utf8"=>"✓", "authenticity_token"=>"O/+jbpxxY9ACV1+M7SQoYXHGvhOlgT/SufGoFpjTKaxqewnQ0IKRJWF+kxoE99DCaiKYPVkKtctSrQ0hPegIEw==", "category_item"=>{"category_item_values_attributes"=>{"0"=>{"id"=>"39"}, "1"=>{"id"=>"40"}, "2"=>{"id"=>"41"}, "3"=>{"id"=>"42"}, "4"=>{"id"=>"43"}, "5"=>{"id"=>"44"}, "6"=>{"id"=>"45"}, "7"=>{"id"=>"46"}, "8"=>{"id"=>"47"}, "9"=>{"id"=>"48"}, "10"=>{"id"=>"49"}}}, "commit"=>"Save", "guide_id"=>"dungeon-boss", "category_id"=>"heroes", "id"=>"smok"}

通过的迷你测试 

  test "mod editing all category items successfully" do
    log_in_as(@user)
    get category_items_edit_path(@guide, @category, @category_item)
    assert_template 'category_items/edit'
    assert_select 'form.edit_category_item'
    assert CategoryItemValue.find(1).value == 'simmv' #confirm value before edit
    patch category_items_update_path(params: {key_id: 1}), category_item: { category_item_values_attributes:  [id: 1, value: "333"]}
    assert CategoryItemValue.find(1).value == '333' #confirm value changed after edit
    follow_redirect!
    assert_template 'category_items/show'
    assert_select 'div.alert'
  end

已经过了几次但是无法弄清楚如何让value嵌套属性从表单提交传递到params和db。

categroy_item_values架构

create_table "category_item_values", force: :cascade do |t|
    t.string   "key"
    t.integer  "key_type"
    t.text     "value"
    t.integer  "category_item_key_id"
    t.integer  "category_item_id"
    t.datetime "created_at",           null: false
    t.datetime "updated_at",           null: false
  end

*这是加载页面然后提交表单的日志

Started GET "/guides/dungeon-boss/heroes/rock/edit" for ::1 at 2016-02-16 21:59:16 +1100
Processing by CategoryItemsController#edit as HTML
  Parameters: {"guide_id"=>"dungeon-boss", "category_id"=>"heroes", "id"=>"rock"}
  [1m[35mUser Load (0.1ms)[0m  SELECT  "users".* FROM "users" WHERE "users"."id" = ? LIMIT 1  [["id", 1]]
  [1m[36mGuide Load (0.1ms)[0m  [1mSELECT  "guides".* FROM "guides" WHERE "guides"."slug" = ?  ORDER BY "guides"."id" ASC LIMIT 1[0m  [["slug", "dungeon-boss"]]
  [1m[35mCategory Load (0.1ms)[0m  SELECT  "categories".* FROM "categories" WHERE "categories"."slug" = ?  ORDER BY "categories"."id" ASC LIMIT 1  [["slug", "heroes"]]
  [1m[36mGameModsRelationship Exists (0.1ms)[0m  [1mSELECT  1 AS one FROM "game_mods_relationships" WHERE "game_mods_relationships"."user_id" = ? AND "game_mods_relationships"."category_id" = 7 LIMIT 1[0m  [["user_id", 1]]
  [1m[35mCategoryItem Load (0.2ms)[0m  SELECT  "category_items".* FROM "category_items" WHERE "category_items"."category_id" = ? AND "category_items"."slug" = ?  ORDER BY "category_items"."id" ASC LIMIT 1  [["category_id", 3], ["slug", "rock"]]
  [1m[36mCACHE (0.0ms)[0m  [1mSELECT  1 AS one FROM "game_mods_relationships" WHERE "game_mods_relationships"."user_id" = ? AND "game_mods_relationships"."category_id" = 7 LIMIT 1[0m  [["user_id", 1]]
  Rendered shared/_error_messages.html.erb (0.1ms)
  [1m[35mCategoryItemValue Load (0.2ms)[0m  SELECT "category_item_values".* FROM "category_item_values" WHERE "category_item_values"."category_item_id" = ?  [["category_item_id", 10]]
  Rendered category_items/edit.html.erb within layouts/application (19.5ms)
  Rendered layouts/_shim.html.erb (0.0ms)
  Rendered layouts/_header.html.erb (0.5ms)
  Rendered layouts/_footer.html.erb (0.2ms)
Completed 200 OK in 230ms (Views: 221.2ms | ActiveRecord: 0.8ms)


Started PATCH "/guides/dungeon-boss/heroes/rock" for ::1 at 2016-02-16 21:59:21 +1100
Processing by CategoryItemsController#update as HTML
  Parameters: {"utf8"=>"✓", "authenticity_token"=>"fT4HylfaCf9ONVlRYLKP9jP4nlerxMZoyyYJkx0mDkwsuq10Gyn7Ci0clceJYXdVKBy4eVdPTHEgeqykuB0v8w==", "category_item"=>{"category_item_values_attributes"=>{"0"=>{"id"=>"28"}, "1"=>{"id"=>"29"}, "2"=>{"id"=>"30"}, "3"=>{"id"=>"31"}, "4"=>{"id"=>"32"}, "5"=>{"id"=>"33"}, "6"=>{"id"=>"34"}, "7"=>{"id"=>"35"}, "8"=>{"id"=>"36"}, "9"=>{"id"=>"37"}, "10"=>{"id"=>"38"}, "11"=>{"id"=>"39"}, "12"=>{"id"=>"40"}, "13"=>{"id"=>"41"}, "14"=>{"id"=>"42"}, "15"=>{"id"=>"43"}, "16"=>{"id"=>"44"}, "17"=>{"id"=>"45"}, "18"=>{"id"=>"46"}, "19"=>{"id"=>"47"}, "20"=>{"id"=>"48"}, "21"=>{"id"=>"49"}, "22"=>{"id"=>"50"}, "23"=>{"id"=>"51"}, "24"=>{"id"=>"52"}, "25"=>{"id"=>"53"}, "26"=>{"id"=>"54"}, "27"=>{"id"=>"55"}, "28"=>{"id"=>"56"}, "29"=>{"id"=>"57"}}}, "commit"=>"Save", "guide_id"=>"dungeon-boss", "category_id"=>"heroes", "id"=>"rock"}
  [1m[36mUser Load (0.1ms)[0m  [1mSELECT  "users".* FROM "users" WHERE "users"."id" = ? LIMIT 1[0m  [["id", 1]]
  [1m[35mGuide Load (0.1ms)[0m  SELECT  "guides".* FROM "guides" WHERE "guides"."slug" = ?  ORDER BY "guides"."id" ASC LIMIT 1  [["slug", "dungeon-boss"]]
  [1m[36mGameModsRelationship Exists (0.1ms)[0m  [1mSELECT  1 AS one FROM "game_mods_relationships" WHERE "game_mods_relationships"."user_id" = ? AND "game_mods_relationships"."category_id" = 7 LIMIT 1[0m  [["user_id", 1]]
  [1m[35mCategory Load (0.1ms)[0m  SELECT  "categories".* FROM "categories" WHERE "categories"."slug" = ?  ORDER BY "categories"."id" ASC LIMIT 1  [["slug", "heroes"]]
  [1m[36mCategoryItem Load (0.1ms)[0m  [1mSELECT  "category_items".* FROM "category_items" WHERE "category_items"."category_id" = ? AND "category_items"."slug" = ?  ORDER BY "category_items"."id" ASC LIMIT 1[0m  [["category_id", 3], ["slug", "rock"]]
  [1m[35mCACHE (0.0ms)[0m  SELECT  1 AS one FROM "game_mods_relationships" WHERE "game_mods_relationships"."user_id" = ? AND "game_mods_relationships"."category_id" = 7 LIMIT 1  [["user_id", 1]]
  [1m[36m (0.0ms)[0m  [1mbegin transaction[0m
  [1m[35mCategoryItemValue Load (0.3ms)[0m  SELECT "category_item_values".* FROM "category_item_values" WHERE "category_item_values"."category_item_id" = ? AND "category_item_values"."id" IN (28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57)  [["category_item_id", 10]]
  [1m[36mCategoryItem Exists (0.1ms)[0m  [1mSELECT  1 AS one FROM "category_items" WHERE (LOWER("category_items"."name") = LOWER('rock') AND "category_items"."id" != 10 AND "category_items"."guide_id" = 7) LIMIT 1[0m
  [1m[35m (0.0ms)[0m  commit transaction
Redirected to http://localhost:3000/guides/dungeon-boss/heroes/rock
Completed 302 Found in 16ms (ActiveRecord: 0.8ms)

一切似乎都很好。此外，当我在db中手动提供value一个值时，它会显示在要编辑的表单输入中，因此表单似乎正常工作。就在我点击提交时，它不会将value添加到属性参数哈希。

日志中有一些问题，所以如果你认为可能导致问题的东西混乱，那就问一下（我养成了让人们知道随机添加部分无法看到的坏习惯）。

2 个答案:

答案 0 :(得分：1)

$result = mysqli_query($sql) or trigger_error("Query Failed! SQL: $sql - Error: ".mysqli_error(), E_USER_ERROR);

每当您创建代码时，都需要确保它是indented properly。

此代码很好;可能的问题是您正在使用来自其他视图/操作的过时代码。如果您发布了整个控制台日志以获取请求，我们可以为您提供更合适的答案。

<%= form_for [@category, @category_item], url: category_items_update_path do |f| %>
   <%= render 'shared/error_messages', object: f.object %>
   <%= f.fields_for :category_item_values do |item_value| %>
     <%= item_value.object.key %>
     <%= item_value.label :value %> 
     <%= item_value.text_field :value %>
   <% end %>
   <%= f.submit "Save"%>
<% end %>

这是你的参数。这看起来不像"guide_id"=>"dungeon-boss", "category_id"=>"heroes", "id"=>"smok" ;也许它可以帮助你识别正在使用的视图。

答案 1 :(得分：0)

经过几天的高低搜索后，我设法发现罪魁祸首是.coffee文件中的一些咖啡脚本编码。这个coffescript使用jquery来改变表单html在页面上的排序方式，使得表单html的部分全部混乱。 coffeescript不是必要的（我只是玩弄jquery并且忘了在一段时间后摆脱编码）所以我删除了它，瞧，问题解决了。

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