复选框项目未保存（simple_form）

Question

另一个更新：这是我的开发日志。我对两件事感到困惑。

1. “geography_ids”从何而来（未经允许的参数：geography_ids）。我搜索了我的整个项目，它出现的唯一位置是在日志文件中。我认为这是问题的根源。
2. 从空的双引号来看，simple_form 似乎正在尝试添加第四项。

这是日志文件：

Started PATCH "/splits/11" for 127.0.0.1 at 2015-09-03 10:28:38 -0500
Processing by SplitsController#update as HTML
  Parameters: {"utf8"=>"✓", "authenticity_token"=>"h5/1qn3KJm8lktOjNGvEH/POZHqx8msCIwtoi42ZYVtbEimbyPiEPwDgdIwzrfBYDZZPPxku0uj7flcsRf6b9g==", "split"=>{"name"=>"Domestic Canada Foreign", "description"=>"", "geography_ids"=>["1", "2", "3", ""], "issue_id"=>"1"}, "commit"=>"Update Split", "id"=>"11"}
  [1m[36mSplit Load (0.3ms)[0m  [1mSELECT  "splits".* FROM "splits" WHERE "splits"."id" = $1 LIMIT 1[0m  [["id", 11]]
Unpermitted parameter: geography_ids
  [1m[35m (0.1ms)[0m  BEGIN
  [1m[36m (0.1ms)[0m  [1mCOMMIT[0m
Redirected to http://phoenix.dev/splits/11
Completed 302 Found in 4ms (ActiveRecord: 0.4ms)


Started GET "/splits/11" for 127.0.0.1 at 2015-09-03 10:28:38 -0500
Processing by SplitsController#show as HTML
  Parameters: {"id"=>"11"}
  [1m[35mSplit Load (0.2ms)[0m  SELECT  "splits".* FROM "splits" WHERE "splits"."id" = $1 LIMIT 1  [["id", 11]]
  [1m[36mIssue Load (0.2ms)[0m  [1mSELECT  "issues".* FROM "issues" WHERE "issues"."id" = $1 LIMIT 1[0m  [["id", 1]]
  Rendered splits/show.html.erb within layouts/application (1.4ms)
Completed 200 OK in 610ms (Views: 608.6ms | ActiveRecord: 0.4ms)


Started GET "/assets/user-2.jpg" for 127.0.0.1 at 2015-09-03 10:28:39 -0500


Started GET "/assets/user-13.jpg" for 127.0.0.1 at 2015-09-03 10:28:39 -0500


Started GET "/assets/user-1.jpg" for 127.0.0.1 at 2015-09-03 10:28:39 -0500

更新：我已经用我最近的更改更新了我的模型和控制器。我发现了一些我修复的复数细微差别。但是，根本问题仍然存在。数据不会进入 geographies_splits 表，这意味着复选框在保存拆分时无法保存其状态。

我已经为此绞尽脑汁好几天了。

这是我的模型：

class Split < ActiveRecord::Base
  belongs_to :issue
  has_and_belongs_to_many :geographies 
end


lass Geography < ActiveRecord::Base
  has_and_belongs_to_many :splits
end

当我阅读有关 has_and_belongs_to_many 关联的 Rails 指南时，它说要创建第三个表，该表基本上将它们连接在一起。

所以我运行了这个迁移：

class CreateGeographiesSplits < ActiveRecord::Migration
  def change
    create_table :geographies_splits do |t|
      t.belongs_to :geography, index: true
      t.belongs_to :split, index: true

      t.timestamps null: false
    end
 end
end

它没有说明创建模型或控制器，所以我一开始没有。在继续工作的同时，我确实创建了一个控制器和模型。

我正在使用 simple_form 来显示我的复选框并且它们显示正确。但是，当我创建拆分时，带有地理内容的复选框不会保存到数据库中，当我返回拆分时，它们不会被选中。

这是创建拆分的表单代码，我试图说明它具有哪些地理位置：

<%= simple_form_for(@split) do |f| %>
  <%= f.error_notification %>

  <div class="form-inputs form-width">
    <%= f.input :name %>
    <%= f.input :description %>
    <%= f.association :geographies, as: :check_boxes %>
    <%= f.association :issue, label_method: :name, value_method: :id, include_blank: true %>
  </div>

  <div>
    <p>More robust Query UI here</p>
  </div>

<div>
  <p>Select printer UI here</p>
</div>


  <div class="form-actions">
    <%= f.button :submit, :class => 'btn btn-primary btn-small' %>
    <%= link_to 'Cancel', splits_path, :class => 'btn btn-default btn-small'  %>
  </div>


<% end %>

这是拆分控制器：

    class SplitsController < ApplicationController
  before_action :set_split, only: [:show, :edit, :update, :destroy]

  # GET /splits
  # GET /splits.json
  def index
    @splits = Split.all
  end

  # GET /splits/1
  # GET /splits/1.json
  def show
  end

  # GET /splits/new
  def new
    @split = Split.new
  end

  # GET /splits/1/edit
  def edit
  end

  # POST /splits
  # POST /splits.json
  def create
    @split = Split.new(split_params)

    respond_to do |format|
      if @split.save
        format.html { redirect_to @split, notice: 'Split was successfully created.' }
        format.json { render :show, status: :created, location: @split }
      else
        format.html { render :new }
        format.json { render json: @split.errors, status: :unprocessable_entity }
      end
    end
  end

  # PATCH/PUT /splits/1
  # PATCH/PUT /splits/1.json
  def update
    respond_to do |format|
      if @split.update(split_params)
        format.html { redirect_to @split, notice: 'Split was successfully updated.' }
        format.json { render :show, status: :ok, location: @split }
      else
        format.html { render :edit }
        format.json { render json: @split.errors, status: :unprocessable_entity }
      end
    end
  end

  # DELETE /splits/1
  # DELETE /splits/1.json
  def destroy
    @split.destroy
    respond_to do |format|
      format.html { redirect_to splits_url, notice: 'Split was successfully destroyed.' }
      format.json { head :no_content }
    end
  end

  private
    # Use callbacks to share common setup or constraints between actions.
    def set_split
      @split = Split.find(params[:id])
    end

    # Never trust parameters from the scary internet, only allow the white list through.
    def split_params
      params.require(:split).permit(:name, :description, :geography_id, :issue_id, :geographies_splits_id)
      end
    end

我完全被难住了。

非常感谢所有帮助。

Answer 1

好的，使用 this post 我能够修复它。

我需要在 splits 控制器中将 { geography_ids:[] } 添加到我的白名单中。

感谢您的帮助。