Question

我有以下表单，试图在带有标签所有区域的复选框中加载并允许将其保存到徽标表单页面上的徽标中。

= tb_form_for [:admin, @logo],
  remote: true,
  data: { errors: :inline, success: admin_logos_path } do |f|

  = tb_form_errors(f.object, :base)

  = f.tb_text_field :name
  = f.tb_check_box :home_page, class: 'checkmark'

  = f.tb_file_field :logo_photo
  = image_tag @logo.logo_photo, style: 'padding-left: 180px; padding-bottom: 20px;' if @logo.logo_photo.present?

  = f.collection_check_boxes :region_id, Region.all, :id, :name, checked: Region.all.map(&:id) do |x|
    div
      = x.check_box
      = x.label
  = f.tb_save_buttons('Logo', admin_logos_path)

页面正确加载，但保存时出现错误，我最终遇到

ActionController :: UnpermittedParameters（找到不允许的参数：：region_id）

很酷，所以我检查了我的LogosController，并且有以下内容：

class LogosController < ApplicationController
 before_action :load_logo, only: [:show, :edit, :update, :destroy]

 def create
  @logo = Logo.new(logo_params)
  flash[:notice] = 'Created' if @logo.save
  respond_with @logo
 end

 def edit
  respond_with @logo
 end

 def update
  flash[:notice] = 'Updated' if @logo.update_attributes(logo_params)
  respond_with @logo
 end

 private

 def logo_params
  params.require(:logo).permit(:name, :home_page, :user, :region, :logo_photo, :region_id, :user_id)
 end
end

我对传递的第一个参数尝试了几种变体：

@ logo.region结果

找到了不允许的参数：：Region :: ActiveRecord_Associations_CollectionProxy：0x00007f81a79a81e0>

：区域导致

找到了不允许的参数：：region

@logo的结果

找到了不允许的参数：：Logo：0x00007f81a34da8

@ logo.region_id最终收到错误请求

参数“徽标”的预期数组（Rack :: QueryParser :: Params）

我如何准确地击中这个？

编辑：

从日志中：

  Parameters: {"id"=>"12"}
  User Load (0.5ms)  SELECT  "users".* FROM "users" WHERE "users"."id" = $1 LIMIT $2  [["id", 1], ["LIMIT", 1]]
 (0.2ms)  BEGIN
 SQL (0.5ms)  UPDATE "users" SET "perishable_token" = $1, "last_request_at" = $2, "updated_at" = $3 WHERE "spud_users"."id" = $4  [["perishable_token", "aFl2KBnsphPP4I6CwXO2"], ["last_request_at", "2018-08-31 15:48:15.999796"], ["updated_at", "2018-08-31 15:48:16.000920"], ["id", 1]]
 (5.4ms)  COMMIT
 Logo Load (0.5ms)  SELECT  "logos".* FROM "logos" WHERE "logos"."id" = $1 LIMIT $2  [["id", 12], ["LIMIT", 1]]
 Rendering admin/logos/edit.html.slim within layouts/admin/detail
 Region Load (0.5ms)  SELECT "regions".* FROM "regions"
 CACHE Region Load (0.0ms)  SELECT "regions".* FROM "regions"
 Rendered admin/logos/_form.html.slim (111.2ms)

提交表单时登录：

Started PATCH "/admin/logos/12" for 127.0.0.1 at 2018-09-04 09:02:43 -0400
Processing by Admin::LogosController#update as JSON
  Parameters: {"utf8"=>"✓", "logo"=>{"name"=>"Mr-T", "home_page"=>"1", "region_id"=>["", "1", "3", "4", "2"]}, "commit"=>"Save Logo", "id"=>"12"}
  User Load (0.3ms)  SELECT  "users".* FROM "users" WHERE "users"."id" = $1 LIMIT $2  [["id", 1], ["LIMIT", 1]]
  Logo Load (0.2ms)  SELECT  "logos".* FROM "logos" WHERE "logos"."id" = $1 LIMIT $2  [["id", 12], ["LIMIT", 1]]
Completed 500 Internal Server Error in 4ms (ActiveRecord: 0.5ms)

ActionController::UnpermittedParameters (found unpermitted parameter: :region_id):

app/controllers/admin/logos_controller.rb:48:in `logo_params'
app/controllers/admin/logos_controller.rb:32:in `update'

Answer 1

在“ logo_params”上将“：region”更改为“：region_id”

  params.require(:logo).permit(:name, :home_page, :user, :region_id, :logo_photo,:user_id)

当存在参数时，Rails ActionController :: UnpermittedParameters找到了不允许的参数

1 个答案: