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n350071🇯🇵
n350071🇯🇵

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My Rails note

#rails

Tips

Rails tips

Ruby tips

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[Ruby] Awesome methods

n350071🇯🇵 ・ Nov 27 '19 ・ 1 min read

#rails

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Switch a couple of variable WITHOUT tmp in Ruby

n350071🇯🇵 ・ Sep 27 '19 ・ 1 min read

#rails

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Stop checking if it's nil in Rails

n350071🇯🇵 ・ Sep 27 '19 ・ 1 min read

#rails

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start each_with_index from 1 (This is good for UI)

n350071🇯🇵 ・ Sep 27 '19 ・ 1 min read

#rails

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Convert to Hash from a couple of the key-value Array in Rails

n350071🇯🇵 ・ Sep 30 '19 ・ 1 min read

#rails

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The ary.map(&:to_s), what is this?

n350071🇯🇵 ・ Sep 30 '19 ・ 1 min read

#rails

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define_method (write once, run everywhere!)

n350071🇯🇵 ・ Oct 3 '19 ・ 1 min read

#rails

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Refactor do end block to {} for reduce scrolling in Rails

n350071🇯🇵 ・ Oct 3 '19 ・ 1 min read

#rails

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Ruby array multiple assignment

n350071🇯🇵 ・ Nov 7 '19 ・ 1 min read

#rails

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[Ruby] heredocument (ヒアドキュメント)

n350071🇯🇵 ・ Nov 27 '19 ・ 1 min read

#rails

Design/Architecter Pattern

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Concern | split, and spin-off, share the responsibility in Rails

n350071🇯🇵 ・ Sep 27 '19 ・ 1 min read

#rails

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Form object pattern in Rails

n350071🇯🇵 ・ Oct 3 '19 ・ 1 min read

#rails

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Object Hash Pattern in Ruby

n350071🇯🇵 ・ Oct 25 '19 ・ 1 min read

#rails

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Service Class by PORO

n350071🇯🇵 ・ Nov 7 '19 ・ 1 min read

#rails

Gems

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Overwrite a gem method by inserting a module in your inheritance chain

n350071🇯🇵 ・ Nov 27 '19 ・ 1 min read

#rails

Authorization

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organize the authorizations of the banken/pundit gem with define_method

n350071🇯🇵 ・ Sep 25 '19 ・ 1 min read

#rails #gem

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[Devise] Arbitrary Routing (任意のルーティング)

n350071🇯🇵 ・ Nov 27 '19 ・ 1 min read

#rails

State machines, Status

  • aasm

Code Quarity

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rubocop for code quality and formatting in Rails

n350071🇯🇵 ・ Sep 25 '19 ・ 1 min read

#rails

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static security analysis for Rails app by using Breakman

n350071🇯🇵 ・ Sep 25 '19 ・ 1 min read

#rails #gem

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metrics your test code coverage in Rails

n350071🇯🇵 ・ Sep 27 '19 ・ 1 min read

#rails #gem

Rails Standard Features

  • secrets, credentials

Model

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model/table name conversions in Rails

n350071🇯🇵 ・ Sep 27 '19 ・ 1 min read

#rails

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a common validations concern in Rails

n350071🇯🇵 ・ Sep 30 '19 ・ 1 min read

#rails

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Constant Enum in Activerecord Rails

n350071🇯🇵 ・ Sep 30 '19 ・ 1 min read

#rails

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Making a nested params for xxx_tag of View Helper in Rails

n350071🇯🇵 ・ Sep 30 '19 ・ 1 min read

#rails

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How to write save and save! (bang! in Rails)

n350071🇯🇵 ・ Nov 27 '19 ・ 1 min read

#rails

View & Helper

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View & Helper Tips Note

n350071🇯🇵 ・ Nov 7 '19 ・ 1 min read

#rails

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Pass data from Rails to JS

n350071🇯🇵 ・ Nov 27 '19 ・ 1 min read

#rails

Form

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Form tags of the ActionView::Helpers in Rails

n350071🇯🇵 ・ Sep 27 '19 ・ 1 min read

#rails

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load stylesheet from controller_path

n350071🇯🇵 ・ Sep 27 '19 ・ 1 min read

#rails

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Specify layout file in Rails Views

n350071🇯🇵 ・ Sep 27 '19 ・ 1 min read

#rails

Controller

where the request comes from? 

# confirm the request comes from `new_book_path`
request.referer.to_s.index(new_book_path)
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Ping controller for the Server Monitoring(死活監視) 

class PingController < ApplicationController
  def index
    render text: 'OK', layout false
  end
end
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iframe Same Origin Policy 

class HogeController < ApplicationController
  after_action :allow_iframe_for_trusted_domain, only[:index]

  private
  # Turn enable to see a page in a specific domain by using this method.
  # Because of the Same-Origin-Policy, it can't do it by default.
  def allow_iframe_for_trusted_domain
    alllow_url = "https://n350071.com"
    response.headers['X-Frame-Options'] = "ALLOW-FROM #{alllow_url}"
    response.headers['Content-Security-Policy'] = "frame-ancestors #{alllow_url}" # Chrome用
  end  
end
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Routes

pass a model with some params 

# The request is `article/:id?author=n350071`
article_path(@article, author: 'n350071')
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I18n

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I18n in Rails

n350071🇯🇵 ・ Sep 27 '19 ・ 1 min read

#rails

DB

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SQL tuning in Rails

n350071🇯🇵 ・ Oct 3 '19 ・ 1 min read

#rails

rake

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rake task memo

n350071🇯🇵 ・ Oct 3 '19 ・ 1 min read

#rails

Meta Programing

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Append a method to all attributes with attribute_method_suffix in Rails

n350071🇯🇵 ・ Sep 25 '19 ・ 1 min read

#rails

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Ruby Instant performance measurement

n350071🇯🇵 ・ Sep 17 '19 ・ 1 min read

#ruby #rails

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mattr_accessor and meta programming. Thanks you, devise_invitable 👍

n350071🇯🇵 ・ Nov 7 '19 ・ 1 min read

#rails

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the eval meta programming power. Making .env file and Set Constant values from the file

n350071🇯🇵 ・ Nov 7 '19 ・ 1 min read

#rails

Debug

Dive into Gem file

1. set your favorit editor 

# bash_profile
export EDITOR="/Applications/Atom.app/Contents/MacOS/Atom"
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Don't forget to . ~/.bash_profile after updating.

2. open the bundled gem

just do it like this.

bundle open faker
bundle open banken
bundle open aasm
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Setting / Config

GitHub logo n350071 / rails-starter-kit-with-docker

rails-starter-kit-with-docker

You can create a rails app on docker with only 3 commands.

Screenshot

screenshot

Usage

Assumptions

I suppose that you already have docker machine If you don't have it, please install it.

And also, you're at the project root directory like new-app If you haven't been yet, type following commands.

mkdir new-app
cd new-app/

1. Clone this repository to your new app directory

git clone git@github.com:n350071/rails-starter-kit-with-docker.git

2. Copy build files

sh rails-starter-kit-with-docker/cp_build_file.sh

You can rename the app name from myapp with replace command There is a CAPITAL MYAPP, so take care of it.

3. Initialize your new project

make init-project

It starts rails and you can check it by http://localhost:3000. when you want to stop your docker, please type

make stop

Option

You can off the comment at # - ./vendor/bundle:/usr/local/bundle in docker-compose.yml So you can save…

View on GitHub

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