README

Yay! This project deployed on Heroku

Ruby version: 2.7.0

To prettify Ruby text inside Sublime:
highlight all code and type Ctrl + Shift + H / Alt + Shift + F in VSCode
After the merge it's save to delete the branch: $ git branch -d branch1
git checkout -f undoing changes

First Install

rails new myapp --database=postgresql

Other tools to work with project

https://github.com/tulios/json-viewer
https://developers.themoviedb.org/3/movies
https://github.com/DavidAnson/vscode-markdownlint
cloudinary to save photo for free Active Record
How to use rake db

Configuration rails generate controller Comments
rails g controller user new create
Database creation rails generate model Article title:string text:tile
Database initialization rails db:migrate - создание таблиц в базе данных
rails db:migrate RAILS_ENV=development

rake db:setup
Додавання нових полів в існуючу таблицю:
rails generate migration add_role_user role:string

Для додавання foreing_key в таблицю articles через миграцию треба використовувати міграцію: add_reference :articles, :user, foreign_key: true

Після цього можна виконати автоматичне заповнення таблиці вик. файл seeds.rb
rails db:seeds - запускає на виконання файл db/seeds.rb, дозволяє додавати в базу даних нові полями з файлу

rake db:reset db:migrate видалення даних та створення таблиць заново

How to run the test suite rails d controller welcome - remove controller and all included file rails generate model Post title:string content:text
rails destroy model Post title:string content:text
Services (job queues, cache servers, search engines, etc.)
Deployment instructions heroku apps: destroy app1 - destroy your app at the heroku
heroku git:remote -a app2 - change the app from app1 to app2

heroku run rake db:migrate

Starting up the Web Server

rails server -> linux
ruby bin\rails server -> windows
rails s -> short
rails generate controller Welcome index
the controller located app/controllers/welcome_controller.rb
the view app/view/welcome/index.html.erb

Troubleshooting:

rails webpacker
install yarn
npm install yarn -g
bundler install > after updating some gems
git restore -s postgres -- .\README.md

Install Bundler on Mac

sudo gem install bundler
brew install gcc

Update Ruby on Mac

rvm install ruby@2.6.5
rvm install ruby-2.6.5
rvm use 2.6.5 --default

Install Heroku:

install heroku from web site for windows
heroku login
heroku create
git push heroku master
rename gem 'sqlite3' to gem 'pg'
run: bundler install
rails db:create ails d migration remove_from_user_avatar_link - remove migrations bundle exec rails webpacker:install
heroku pg:reset DATABASE --confirm YOUR_APP_NAME heroku run rake db:setup heroku run rake db:migrate heroku restart after running pg:reset
heroku open heroku run rails console heroku apps:errors heroku logs

Create useful git messages

The type is contained within the title and can be one of these types:

feat: a new feature
fix: a bug fix
docs: changes to documentation
style: formatting, missing semi colons, etc; no code change
refactor: refactoring production code
test: adding tests, refactoring test; no production code change
chore: updating build tasks, package manager configs, etc; no production code change

What does it look like

Work with Comment

The model Comment generator generate 4 files:

Create model for command: rails generate model Comment commenter:string body:text article:references

File	Purpose
db/migrate/_create_comments.rb	to create the comment table
app/models/comment.rb	The comment model
test/models/comment_test.rb	Testing harness for the comment model
test/fixtures/comments.yml	Sample comments for use in testing

Run migration: rails db:migrate. They create all new tables and columns.

Work with Rails Database / Model

rake db:migrate - checks which missing migrations still need to be applied to the database without caring about the previouse ones.
id, created_at, updated_at was created by default for each ActiveRecord model.
rails generate migration AddPartNumberToProducts part_number:string:index generate migration

To generate a model you can use following field types:

binary binary large object
boolean true or false
date to store a date
datetime to store a date including a time
float for storing a floating point number
integer for storing an integer
decimal for storing a decimal number
string a sequence of any characters (255) characters
text as a string but considerably bigger (65536) characters

Routing and Controllers

form_with отправляет формы с использованием Ajax, тем самым не осуществляя редирект всей страницы.
:article - определяющий объект для формы
:url опция которая используется если нужно вести по специальному url
plain: ключ который принимает метод render
params - метод, это объект, представляющий параметры (или поля), приходящие от формы. принимающий

How to use Cloudinary

Create account
Add gem gem 'cloudinary' to Gemfile
Copy cloudinary.yml with sitting from cloudinary site to the config folder
Create migration, you need add to User model string column avatar

  def change
        add_column :users, :avatar, :string
  end

Run migration rake db:migrate
Add to User model new string

  attribute :avatar, default: 'https://res.cloudinary.com/demo/image/upload/d_avatar.png/non_existing_id.png'

Change your User controller

 def create_new_img(new_img)
    new_img_url = Cloudinary::Uploader.upload( new_img )
 end

def create  
  @user = User.create!( user_param)

  if !params[:user][:avatar].nil?
    new_img_url =  create_new_img(params[:user][:avatar])
    @user.update(:avatar => new_img_url['url'] )
  end

  @user.save
end

Add to form image

<li>
  <%= form.label :avatar %>
  <%= form.file_field :avatar %>
</li>

Render your image at the form

<% if !@article.image.nil? then %>
  <div class="card-img mb-2">
    <%= image_tag @article.image, class: 'rounded img-fluid' %>
  </div>
<% end %>

Add will_paginate

gem 'will_paginate' self.per_page = 5 -> to article model articles.all.order("created_at DESC").paginate(page: params[:page], per_page: 5) to the index method in controller <%= will_paginate @article, list_classes: %w(pagination justify-content-end) %>1 to the html page

Remove column directly from database

ALTER TABLE users
DROP COLUMN reset_password_sent_at;

To connect Cloudinary on Heroku

Set them to the seting page from you heroku page like this: CLOUDINARY_URL cloudinary://937675854665996:sM_5iluwmdHeCiF1it-----

Setup Mailgun, you need add this to heroku setting:

 config.action_mailer.raise_delivery_errors = true
  config.action_mailer.delivery_method = :test
  host = 'localhost:3000'
  config.action_mailer.default_url_options = { host: host }
  ActionMailer::Base.smtp_settings = {
  :port           => 587,
  :address        => 'smtp.mailgun.org',
  :domain         => ENV['MAILGUN_SMTP_DOMAIN'],
  :authentication => :plain,
  :user_name      => ENV['MAILGUN_SMTP_LOGIN'],
  :password       => ENV['MAILGUN_SMTP_PASSWORD'],
  }
  ActionMailer::Base.delivery_method = :smtp

Set to the ENV on macOS

To set an environment variable on macOS, open aterminal window. If you are setting the environmentvariable to run jobs from the command line, use thefollowing command:

open bash_profile vim ~/.bash_profile

Synkevych / postagram