Question

我正在尝试将设置上的行为设置为可用于我的Rails 5应用程序。

我有一个名为Randd :: Field.rb的模型，它有一个名为：title的属性。我想将这些标题用作我的提案模型的标签。

我的Proposal.rb有：

class Proposal＆lt; ApplicationRecord 包括Statesman :: Adapters :: ActiveRecordQueries

  acts_as_taggable
  acts_as_taggable_on :randd_maturities, :randd_fields, :randd_purposes, :randd_activities

我的提案form.html.erb有：

<%= f.collection_select :randd_field_list, Randd::Field.order(:title), :id, :title, {}, {multiple: true} %>

我的提案控制器将randd_field_list列入白名单：

  def proposal_params
      params.require(:proposal).permit(:title, :randd_maturities_list, :randd_field_list, :randd_purposes_list, :randd_activities_list)

当我保存所有内容并尝试向提案添加标记时，我收到错误消息。服务器日志显示：

Unpermitted parameter: randd_field_list

这没有任何意义，因为当属性未在允许的参数中列入白名单时会出现问题 - 我已经这样做了。

有人可以看到需要做什么才能通过提案表格保存标签吗？

我发现gem文档令人困惑，因为它显示：

设置

class User＆lt; ActiveRecord :: Base acts_as_taggable #Alias for   acts_as_taggable_on：tags acts_as_taggable_on：技能，：兴趣   端

类UsersController＆lt; ApplicationController def user_params       params.require（：user）.permit（：name，：tag_list）## Rails 4强params使用结束

为什么允许的参数不包括：skill_list和：interest_list，假设这些特定模型用作标记？我是否应该将“tag_list”添加到我的提案允许参数中，即使可以添加的唯一标签来自我列出的特定模型中定义的标题：

acts_as_taggable_on :randd_maturities, :randd_fields, :randd_purposes, :randd_activities

服务器日志显示：

  ActsAsTaggableOn::Tagging Load (1.6ms)  SELECT "taggings".* FROM "taggings" WHERE "taggings"."taggable_id" = $1 AND "taggings"."taggable_type" = $2  [["taggable_id", 17], ["taggable_type", "Proposal"]]
  ActsAsTaggableOn::Tag Load (1.7ms)  SELECT "tags".* FROM "tags" INNER JOIN "taggings" ON "tags"."id" = "taggings"."tag_id" WHERE "taggings"."taggable_id" = $1 AND "taggings"."taggable_type" = $2 AND (taggings.context = 'randd_fields' AND taggings.tagger_id IS NULL)  [["taggable_id", 17], ["taggable_type", "Proposal"]]



  ActsAsTaggableOn::Tagging Load (2.8ms)  SELECT "taggings".* FROM "taggings" WHERE "taggings"."taggable_id" = $1 AND "taggings"."taggable_type" = $2  [["taggable_id", 17], ["taggable_type", "Proposal"]]
  ActsAsTaggableOn::Tag Load (3.0ms)  SELECT "tags".* FROM "tags" INNER JOIN "taggings" ON "tags"."id" = "taggings"."tag_id" WHERE "taggings"."taggable_id" = $1 AND "taggings"."taggable_type" = $2 AND (taggings.context = 'randd_fields' AND taggings.tagger_id IS NULL)  [["taggable_id", 17], ["taggable_type", "Proposal"]]
  Randd::Field Load (1.6ms)  SELECT "randd_fields".* FROM "randd_fields" ORDER BY "randd_fields"."title" ASC


Processing by ProposalsController#update as HTML
  Parameters: {"utf8"=>"✓", "authenticity_token"=>"BF7l9/0QTVN3A==", "proposal"=>{"title"=>"asdf", "byline"=>"asdf", , "randd_field_list"=>["", "1"], 

Unpermitted parameter: randd_field_list

Answer 1

您为* _list参数发送数组。尝试在permit方法中为每个_list添加[]：

params.require(:proposal).permit(
  :title, 
  randd_maturities_list: [], 
  randd_field_list: [], 
  randd_purposes_list: [], 
  randd_activities_list: [])

Rails 5 - 作为Taggable On - 特定标记列表的未经许可的参数

1 个答案: