Rails 8 新项目创建

Rails 8.0.1 has some new features.  + ruby 3.4.2

rvm install 3.4.2
gem install rails -v 8.0.1

It's the time to begin to build the project. But first, what problem do you want to solve? Yes , there is a requirement, I want to build a project about 'Wuxing BaGua'.
The project name is 'zybzlz'.

rails new zybzlz  -T --css=tailwind --database=postgresql
rails tailwindcss:install
rails assets:precompile

The -T flag prevents Rails from generating files fro MiniTest, as we will use Rspec for testing.
The --css tailwind flag sets up Tailwind CSS for styling.
The --database=postgresql  flag configures PostgreSQL as the database.

bundle install  
You can change the gem source ,if you're in China and stuck.   (ruby-china or 163 or tencent is ok.)

config your config/database.yml

rails db:create  && rails db:migrate

Tailwindcss


Synopsis:
  • bin/rails tailwindcss:install - installs the configuration file, output file, and Procfile.dev
  • bin/rails tailwindcss:build - generate the output file
    • bin/rails tailwindcss:build[debug] - generate unminimized output
  • bin/rails tailwindcss:watch - start live rebuilds, generating output on file changes
    • bin/rails tailwindcss:watch[debug] - generate unminimized output
    • bin/rails tailwindcss:watch[poll] - for systems without file system events
    • bin/rails tailwindcss:watch[always] - for systems without TTY (e.g., some docker containers)
Note that you can combine task options, e.g. rails tailwindcss:watch[debug,poll].

Chartkick


#Gemfile
gem 'chartkick'
gem 'groupdate'

Configuring Chartkick Using Importmap
In config/importmap.rb, add:

pin "chartkick", to: "chartkick.js"
pin "Chart.bundle", to: "Chart.bundle.js"

And in app/javascript/application.js, add:

import "chartkick"
import "Chart.bundle"

Ruby:

@posts_by_month = Post.group_by_month(:created_at).count

erb:

<%= column_chart @posts_by_month %>
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