質問編集履歴
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test
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Ruby on Railsで
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Ruby on Railsでリアルタイムなランキングを作る方法
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###前提・実現したいこと
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皆さま、こんちわ。Ruby初心者です。
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システム会社の開発環境や使用している技術を閲覧できるサービスを作ってます。
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今回、企業ごとに多く使われている技術部門を1か月毎に代わる
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ご閲覧ありがとうございます。
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ユーザーが今できるプログラミング言語を登録したとき
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2.PHP
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3.C#
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例)今月(11月)プログラミング部門
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1.Ruby
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2.C#
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3.Kotlin
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###発生している問題
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```
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結果として、一番人気のプログラミング言語は何かというランキングページを作りたいのですが、
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どうしたらよいでしょうか?
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###該当のソースコード
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プログラミング言語テーブル
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```ここに言語を入力
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class CreatePrograms < ActiveRecord::Migration
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def change
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create_table :programs do |t|
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t.string :pmgcname #プログラミング言語名
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t.integer :pmgcopemem #出来る人の人数
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t.integer :pmgshortagemem #この言語の仕事で不足してる人数
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t.text :pmgRemarks #備考
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t.timestamps null: false
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end
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end
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end
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```
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プログラミング言語のコントローラー
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```
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class ProgramsController < ApplicationController
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before_action :set_program, only: [:show, :edit, :update, :destroy]
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# GET /programs
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# GET /programs.json
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def index
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@programs = Program.all
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end
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# GET /programs/1
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# GET /programs/1.json
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def show
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end
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# GET /programs/new
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def new
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@program = Program.new
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end
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# GET /programs/1/edit
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def edit
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end
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# POST /programs
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# POST /programs.json
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def create
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@program = Program.new(program_params)
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respond_to do |format|
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if @program.save
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format.html { redirect_to @program, notice: '登録されました.' }
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format.json { render :show, status: :created, location: @program }
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else
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format.html { render :new }
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format.json { render json: @program.errors, status: :unprocessable_entity }
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end
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end
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end
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# PATCH/PUT /programs/1
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# PATCH/PUT /programs/1.json
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def update
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respond_to do |format|
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if @program.update(program_params)
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format.html { redirect_to @program, notice: 'Program was successfully updated.' }
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format.json { render :show, status: :ok, location: @program }
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else
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format.html { render :edit }
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format.json { render json: @program.errors, status: :unprocessable_entity }
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end
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end
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end
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# DELETE /programs/1
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# DELETE /programs/1.json
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def destroy
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@program.destroy
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respond_to do |format|
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format.html { redirect_to programs_url, notice: 'Program was successfully destroyed.' }
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format.json { head :no_content }
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end
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end
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private
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# Use callbacks to share common setup or constraints between actions.
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def set_program
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@program = Program.find(params[:id])
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end
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# Never trust parameters from the scary internet, only allow the white list through.
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def program_params
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params.require(:program).permit(:pmgcname, :pmgcopemem, :pmgshortagemem, :pmgRemarks)
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end
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end
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```
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ランキングのコントローラー
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```
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class RankingsController < ApplicationController
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def programming
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programmings = Program.group(:pmgcname).order('count_all desc').limit(10).count.keys
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#@Programs = Program.find(pmgcnames).sort_by{|pmgcname| pmgcnames.index(pmgcname.pmgcname)}
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end
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def frameWork
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end
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def database
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end
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def varmanage
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end
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def cmsdevelop
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end
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def optsystem
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end
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def Middleware
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end
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def appli
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end
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def Language
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end
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end
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```
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ランキングのビュー
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```
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<div class="col-sm-8">
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<div class="panel panel-primary">
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<div class="panel panel-primary">
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<div class="panel-heading">プログラミング言語取扱件数の上位
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<div class="panel-heading">プログラミング言語取扱件数の上位10個</div>
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<table class="table table-striped table-bordered">
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<th>ITスキル名</th>
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<th>備考</th>
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</tr>
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<tr>
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<th></th>
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<td></td>
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<td></td>
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<td></td>
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</tr>
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```
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DBのプログラミング言語のカラム
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```
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class CreatePrograms < ActiveRecord::Migration
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def change
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create_table :programs do |t|
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t.string :pmgcname
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t.integer :pmgcopemem
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t.integer :pmgshortagemem
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t.text :pmgRemarks
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t.timestamps null: false
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end
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end
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end
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```
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プログラミング言語のコントローラー
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```
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class ProgramsController < ApplicationController
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before_action :set_program, only: [:show, :edit, :update, :destroy]
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# GET /programs
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# GET /programs.json
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def index
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@programs = Program.all
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end
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# GET /programs/1
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# GET /programs/1.json
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def show
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end
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# GET /programs/new
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def new
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@program = Program.new
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end
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# GET /programs/1/edit
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def edit
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end
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# POST /programs
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# POST /programs.json
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def create
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@program = Program.new(program_params)
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respond_to do |format|
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if @program.save
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format.html { redirect_to @program, notice: '登録されました.' }
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format.json { render :show, status: :created, location: @program }
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else
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format.html { render :new }
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format.json { render json: @program.errors, status: :unprocessable_entity }
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end
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end
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end
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# PATCH/PUT /programs/1
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# PATCH/PUT /programs/1.json
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def update
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respond_to do |format|
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if @program.update(program_params)
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format.html { redirect_to @program, notice: 'Program was successfully updated.' }
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format.json { render :show, status: :ok, location: @program }
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else
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format.html { render :edit }
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format.json { render json: @program.errors, status: :unprocessable_entity }
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end
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end
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end
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# DELETE /programs/1
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# DELETE /programs/1.json
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253
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def destroy
|
254
|
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|
255
|
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@program.destroy
|
256
|
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|
257
|
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respond_to do |format|
|
258
|
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|
259
|
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format.html { redirect_to programs_url, notice: 'Program was successfully destroyed.' }
|
260
|
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|
261
|
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format.json { head :no_content }
|
262
|
-
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263
|
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end
|
264
|
-
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265
|
-
end
|
266
|
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267
|
-
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268
|
-
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269
|
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private
|
270
|
-
|
271
|
-
# Use callbacks to share common setup or constraints between actions.
|
272
|
-
|
273
|
-
def set_program
|
274
|
-
|
275
|
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@program = Program.find(params[:id])
|
276
|
-
|
277
|
-
end
|
278
|
-
|
279
|
-
|
280
|
-
|
281
|
-
# Never trust parameters from the scary internet, only allow the white list through.
|
282
|
-
|
283
|
-
def program_params
|
284
|
-
|
285
|
-
params.require(:program).permit(:pmgcname, :pmgcopemem, :pmgshortagemem, :pmgRemarks)
|
286
|
-
|
287
|
-
end
|
288
|
-
|
289
|
-
end
|
290
|
-
|
291
|
-
|
292
|
-
|
293
|
-
```
|
294
|
-
|
295
|
-
ランキングのコントローラー
|
296
|
-
|
297
|
-
```
|
298
|
-
|
299
|
-
class RankingsController < ApplicationController
|
300
|
-
|
301
|
-
def programming
|
302
|
-
|
303
|
-
end
|
304
|
-
|
305
|
-
|
306
|
-
|
307
|
-
def frameWork
|
308
|
-
|
309
|
-
end
|
310
|
-
|
311
|
-
|
312
|
-
|
313
|
-
def database
|
314
|
-
|
315
|
-
end
|
316
|
-
|
317
|
-
|
318
|
-
|
319
|
-
def varmanage
|
320
|
-
|
321
|
-
end
|
322
|
-
|
323
|
-
|
324
|
-
|
325
|
-
def cmsdevelop
|
326
|
-
|
327
|
-
end
|
328
|
-
|
329
|
-
|
330
|
-
|
331
|
-
def optsystem
|
332
|
-
|
333
|
-
end
|
334
|
-
|
335
|
-
|
336
|
-
|
337
|
-
def Middleware
|
338
|
-
|
339
|
-
end
|
340
|
-
|
341
|
-
|
342
|
-
|
343
|
-
def appli
|
344
|
-
|
345
|
-
end
|
346
|
-
|
347
|
-
|
348
|
-
|
349
|
-
def Language
|
350
|
-
|
351
|
-
end
|
352
|
-
|
353
|
-
end
|
354
|
-
|
355
|
-
|
356
|
-
|
357
|
-
```
|
358
|
-
|
359
|
-
|
360
|
-
|
361
325
|
|
362
326
|
|
363
327
|
###補足情報(言語/FW/ツール等のバージョンなど)
|
364
328
|
|
365
|
-
Ruby
|
329
|
+
Ruby
|