try051

Support default expression and expression indexes for MySQL
rails/rails#34307

app/assets/stylesheets/hosts.scss

@@ -0,0 +1,3 @@
+// Place all the styles related to the hosts controller here.
+// They will automatically be included in application.css.
+// You can use Sass (SCSS) here: http://sass-lang.com/

app/assets/stylesheets/scaffolds.scss

@@ -0,0 +1,84 @@
+body {
+  background-color: #fff;
+  color: #333;
+  margin: 33px;
+  font-family: verdana, arial, helvetica, sans-serif;
+  font-size: 13px;
+  line-height: 18px;
+}
+
+p, ol, ul, td {
+  font-family: verdana, arial, helvetica, sans-serif;
+  font-size: 13px;
+  line-height: 18px;
+}
+
+pre {
+  background-color: #eee;
+  padding: 10px;
+  font-size: 11px;
+}
+
+a {
+  color: #000;
+
+  &:visited {
+    color: #666;
+  }
+
+  &:hover {
+    color: #fff;
+    background-color: #000;
+  }
+}
+
+th {
+  padding-bottom: 5px;
+}
+
+td {
+  padding: 0 5px 7px;
+}
+
+div {
+  &.field, &.actions {
+    margin-bottom: 10px;
+  }
+}
+
+#notice {
+  color: green;
+}
+
+.field_with_errors {
+  padding: 2px;
+  background-color: red;
+  display: table;
+}
+
+#error_explanation {
+  width: 450px;
+  border: 2px solid red;
+  padding: 7px 7px 0;
+  margin-bottom: 20px;
+  background-color: #f0f0f0;
+
+  h2 {
+    text-align: left;
+    font-weight: bold;
+    padding: 5px 5px 5px 15px;
+    font-size: 12px;
+    margin: -7px -7px 0;
+    background-color: #c00;
+    color: #fff;
+  }
+
+  ul li {
+    font-size: 12px;
+    list-style: square;
+  }
+}
+
+label {
+  display: block;
+}

app/controllers/hosts_controller.rb

@@ -0,0 +1,75 @@
+class HostsController < ApplicationController
+  before_action :set_host, only: [:show, :edit, :update, :destroy]
+
+  # GET /hosts
+  # GET /hosts.json
+  def index
+    @hosts = Host.all.order(:aton)
+    # @hosts = Host.all.order(:ip)
+  end
+
+  # GET /hosts/1
+  # GET /hosts/1.json
+  def show
+  end
+
+  # GET /hosts/new
+  def new
+    @host = Host.new
+  end
+
+  # GET /hosts/1/edit
+  def edit
+  end
+
+  # POST /hosts
+  # POST /hosts.json
+  def create
+    @host = Host.new(host_params)
+
+    respond_to do |format|
+      if @host.save
+        format.html { redirect_to @host, notice: 'Host was successfully created.' }
+        format.json { render :show, status: :created, location: @host }
+      else
+        format.html { render :new }
+        format.json { render json: @host.errors, status: :unprocessable_entity }
+      end
+    end
+  end
+
+  # PATCH/PUT /hosts/1
+  # PATCH/PUT /hosts/1.json
+  def update
+    respond_to do |format|
+      if @host.update(host_params)
+        format.html { redirect_to @host, notice: 'Host was successfully updated.' }
+        format.json { render :show, status: :ok, location: @host }
+      else
+        format.html { render :edit }
+        format.json { render json: @host.errors, status: :unprocessable_entity }
+      end
+    end
+  end
+
+  # DELETE /hosts/1
+  # DELETE /hosts/1.json
+  def destroy
+    @host.destroy
+    respond_to do |format|
+      format.html { redirect_to hosts_url, notice: 'Host was successfully destroyed.' }
+      format.json { head :no_content }
+    end
+  end
+
+  private
+    # Use callbacks to share common setup or constraints between actions.
+    def set_host
+      @host = Host.find(params[:id])
+    end
+
+    # Never trust parameters from the scary internet, only allow the white list through.
+    def host_params
+      params.require(:host).permit(:ip, :aton)
+    end
+end

app/helpers/hosts_helper.rb

@@ -0,0 +1,2 @@
+module HostsHelper
+end

app/models/host.rb

@@ -0,0 +1,2 @@
+class Host < ApplicationRecord
+end

app/views/hosts/_form.html.erb

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+<%= form_with(model: host, local: true) do |form| %>
+  <% if host.errors.any? %>
+    <div id="error_explanation">
+      <h2><%= pluralize(host.errors.count, "error") %> prohibited this host from being saved:</h2>
+
+      <ul>
+        <% host.errors.full_messages.each do |message| %>
+          <li><%= message %></li>
+        <% end %>
+      </ul>
+    </div>
+  <% end %>
+
+  <div class="field">
+    <%= form.label :ip %>
+    <%= form.text_field :ip %>
+  </div>
+
+  <div class="field">
+    <%= form.label :aton %>
+    <%= form.number_field :aton %>
+  </div>
+
+  <div class="actions">
+    <%= form.submit %>
+  </div>
+<% end %>

app/views/hosts/_host.json.jbuilder

@@ -0,0 +1,2 @@
+json.extract! host, :id, :ip, :aton, :created_at, :updated_at
+json.url host_url(host, format: :json)

app/views/hosts/edit.html.erb

@@ -0,0 +1,6 @@
+<h1>Editing Host</h1>
+
+<%= render 'form', host: @host %>
+
+<%= link_to 'Show', @host %> |
+<%= link_to 'Back', hosts_path %>

app/views/hosts/index.html.erb

@@ -0,0 +1,29 @@
+<p id="notice"><%= notice %></p>
+
+<h1>Hosts</h1>
+
+<table>
+  <thead>
+    <tr>
+      <th>Ip</th>
+      <th>Aton</th>
+      <th colspan="3"></th>
+    </tr>
+  </thead>
+
+  <tbody>
+    <% @hosts.each do |host| %>
+      <tr>
+        <td><%= host.ip %></td>
+        <td><%= host.aton %></td>
+        <td><%= link_to 'Show', host %></td>
+        <td><%= link_to 'Edit', edit_host_path(host) %></td>
+        <td><%= link_to 'Destroy', host, method: :delete, data: { confirm: 'Are you sure?' } %></td>
+      </tr>
+    <% end %>
+  </tbody>
+</table>
+
+<br>
+
+<%= link_to 'New Host', new_host_path %>

app/views/hosts/index.json.jbuilder

@@ -0,0 +1 @@
+json.array! @hosts, partial: "hosts/host", as: :host

app/views/hosts/new.html.erb

@@ -0,0 +1,5 @@
+<h1>New Host</h1>
+
+<%= render 'form', host: @host %>
+
+<%= link_to 'Back', hosts_path %>

app/views/hosts/show.html.erb

@@ -0,0 +1,14 @@
+<p id="notice"><%= notice %></p>
+
+<p>
+  <strong>Ip:</strong>
+  <%= @host.ip %>
+</p>
+
+<p>
+  <strong>Aton:</strong>
+  <%= @host.aton %>
+</p>
+
+<%= link_to 'Edit', edit_host_path(@host) %> |
+<%= link_to 'Back', hosts_path %>

app/views/hosts/show.json.jbuilder

@@ -0,0 +1 @@
+json.partial! "hosts/host", host: @host

config/routes.rb

@@ -1,3 +1,4 @@
 Rails.application.routes.draw do
+  resources :hosts
   # For details on the DSL available within this file, see https://guides.rubyonrails.org/routing.html
 end

db/migrate/20190706063437_create_hosts.rb

@@ -0,0 +1,10 @@
+class CreateHosts < ActiveRecord::Migration[6.0]
+  def change
+    create_table :hosts do |t|
+      t.string :ip, null: false
+      t.integer :aton, limit: 5, default: -> { '(inet_aton(ip))' }
+
+      t.timestamps
+    end
+  end
+end

db/schema.rb

@@ -0,0 +1,22 @@
+# This file is auto-generated from the current state of the database. Instead
+# of editing this file, please use the migrations feature of Active Record to
+# incrementally modify your database, and then regenerate this schema definition.
+#
+# This file is the source Rails uses to define your schema when running `rails
+# db:schema:load`. When creating a new database, `rails db:schema:load` tends to
+# be faster and is potentially less error prone than running all of your
+# migrations from scratch. Old migrations may fail to apply correctly if those
+# migrations use external dependencies or application code.
+#
+# It's strongly recommended that you check this file into your version control system.
+
+ActiveRecord::Schema.define(version: 2019_07_06_063437) do
+
+  create_table "hosts", options: "ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci", force: :cascade do |t|
+    t.string "ip", null: false
+    t.bigint "aton", default: -> { "(inet_aton(`ip`))" }
+    t.datetime "created_at", precision: 6, null: false
+    t.datetime "updated_at", precision: 6, null: false
+  end
+
+end

db/seeds.rb

@@ -1,7 +1,11 @@
-# This file should contain all the record creation needed to seed the database with its default values.
-# The data can then be loaded with the rails db:seed command (or created alongside the database with db:setup).
-#
-# Examples:
-#
-#   movies = Movie.create([{ name: 'Star Wars' }, { name: 'Lord of the Rings' }])
-#   Character.create(name: 'Luke', movie: movies.first)
+Host.create(
+  [
+    { ip: '192.168.1.1' },
+    { ip: '192.168.2.1' },
+    { ip: '192.168.9.1' },
+    { ip: '192.168.10.1' },
+    { ip: '192.168.20.1' },
+    { ip: '192.168.99.1' },
+    { ip: '192.168.120.1' }
+  ]
+)

test/controllers/hosts_controller_test.rb

@@ -0,0 +1,48 @@
+require 'test_helper'
+
+class HostsControllerTest < ActionDispatch::IntegrationTest
+  setup do
+    @host = hosts(:one)
+  end
+
+  test "should get index" do
+    get hosts_url
+    assert_response :success
+  end
+
+  test "should get new" do
+    get new_host_url
+    assert_response :success
+  end
+
+  test "should create host" do
+    assert_difference('Host.count') do
+      post hosts_url, params: { host: { aton: @host.aton, ip: @host.ip } }
+    end
+
+    assert_redirected_to host_url(Host.last)
+  end
+
+  test "should show host" do
+    get host_url(@host)
+    assert_response :success
+  end
+
+  test "should get edit" do
+    get edit_host_url(@host)
+    assert_response :success
+  end
+
+  test "should update host" do
+    patch host_url(@host), params: { host: { aton: @host.aton, ip: @host.ip } }
+    assert_redirected_to host_url(@host)
+  end
+
+  test "should destroy host" do
+    assert_difference('Host.count', -1) do
+      delete host_url(@host)
+    end
+
+    assert_redirected_to hosts_url
+  end
+end

test/fixtures/hosts.yml

@@ -0,0 +1,9 @@
+# Read about fixtures at https://api.rubyonrails.org/classes/ActiveRecord/FixtureSet.html
+
+one:
+  ip: MyString
+  aton: 1
+
+two:
+  ip: MyString
+  aton: 1

test/models/host_test.rb

@@ -0,0 +1,7 @@
+require 'test_helper'
+
+class HostTest < ActiveSupport::TestCase
+  # test "the truth" do
+  #   assert true
+  # end
+end