Tep3-onk-2

準備

プロジェクトディレクトリ作成移動バージョン確認

new

% rails new . -d postgresql --css tailwind
% bundle install
% rails db:create
または
% rails db:reset 
% rails db:migrate
% rails server

daisyui

tailwind css UIコンポーネント　インストール

% yarn add daisyui

config/tailwind.config.js

plugins: [
    require('@tailwindcss/forms'),
    require('@tailwindcss/aspect-ratio'),
    require('@tailwindcss/typography'),
    require('daisyui'),    // ← 追記する
  ],

app/views/layouts/application.html.erb

<html data-theme="light">  // テーマを選ぶ

データベース移行

Herokuからdumpしてローカルにheroku_dumpデータベースを新設しリストアする

作り直すアプリはデータベース構造を変えるのでテーブルごとにダンプ・リストアする

データ数確認

=# select count(*) from clients ;
 count 
-------
  5067
(1 row)

heroku_dumpデータベースでテーブ名を変える

=# ALTER TABLE users RENAME TO users_old;
=# ALTER TABLE clients RENAME TO clients_old;

旧テーブルダンプ

% pg_dump --username=jq --table users_old heroku_dump > users_old.sql

旧テーブルを新アプリのデータベースにリストア

% psql --username=jq tep5_development < ../old_users.sql 
SET
SET
SET
SET
SET
 set_config 
------------
 
(1 row)

SET
SET
SET
SET
SET
SET
CREATE TABLE
ALTER TABLE
CREATE SEQUENCE
ALTER TABLE
ALTER SEQUENCE
ALTER TABLE
COPY 17
 setval 
--------
     51
(1 row)

ERROR:  relation "users_pkey" already exists
ERROR:  relation "index_users_on_email" already exists
CREATE INDEX

旧テーブルをセレクトして新テーブルにインサートする

=# insert into users
(
    id, name, email, created_at, updated_at, password_digest, remember_digest, activation_digest, activated, activated_at, reset_digest, reset_sent_at
)
select
    id, name, email, created_at, updated_at, password_digest, remember_digest, activation_digest, activated, activated_at, reset_digest, reset_sent_at
from
    users_old;
INSERT 0 17

UUIDを有効にする

% rails generate migration enable_extension_for_uuid

migrate編集

class EnableExtensionForUuid < ActiveRecord::Migration[7.0]
  def change                   
    enable_extension 'pgcrypto' unless extension_enabled?('pgcrypto')
  end
end

% rails db:migrate

デフォルトのキーをuuidにする

config/initializers/generators.rb 作成

Rails.application.config.generators do |g|
  g.orm :active_record, primary_key_type: :uuid
end

generate

$ rails generate scaffold User name:string email:string password_digest:string remember_digest:string role:integer activation_digest:string activated:boolean activated_at:datetime reset_digest:string reset_sent_at:datetime

migrationファイルを確認　indexを書く　以下同じ

% rails generate scaffold Note user:references content:string kind:integer meeting_time:integer role:integer note_line:integer

% rails generate scaffold List user:references note:references content:string list_line:integer

% rails generate scaffold Client user:references note:references list:references content:string client_line:integer memo:text

% rails generate scaffold Other user:references note:references client:references name:string kana:string client_name:boolean other_line:integer memo:text generation:string

やり直し
% rails destroy scaffold User .................

$ rails generate scaffold Post content:text user:references picture:string

$ rails generate model Relationship follower_id:integer followed_id:integer

$ rails db:migrate RAILS_ENV=production

$ bin/dev

$ rails generate controller StaticPages home help about contact

エラー

ActionView::Template::Error (The asset "tailwind.css" is not present in the asset pipeline.

config/envitonments/production.rb

config.assets.compile = true