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/*Add the following line of codes into config/environemnt.rb file*/

ActionView::Base.field_error_proc = Proc.new do |html_tag, instance|
  html_tag.html_safe
end

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/******************************
 Update and Upgrade Ubuntu
******************************/
sudo apt update && sudo apt upgrade -y
 
 
/******************************
 Necessarry Ubuntu Tools
******************************/
 	1]	Tweak-Tool	[sudo apt install gnome-tweak-tool]

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nginit@smehsan:~/wip/rails$ rails new myapp -d postgresql
      create  
      create  README.md
      create  Rakefile
      create  .ruby-version
      create  config.ru
      create  .gitignore
      create  .gitattributes
      create  Gemfile
         run  git init from "."

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Install
------------------
sudo apt-get install curl ca-certificates gnupg && curl https://www.postgresql.org/media/keys/ACCC4CF8.asc | sudo apt-key add -

sudo sh -c 'echo "deb http://apt.postgresql.org/pub/repos/apt/ bionic-pgdg main" > /etc/apt/sources.list.d/pgdg.list'

sudo apt update && sudo apt-get install postgresql-12


Create a new user

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mysql -u root -p  //enter into mysql as root user

SHOW DATABASES; //Show available databases

DROP DATABASE database_name; //Delete a mysql database

sudo /etc/init.d/mysql.server start  //start mysql server

sudo /etc/init.d/mysql.server stop  //Stop mysql server

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MySQL Download URL

https://dev.mysql.com/get/Downloads/MySQL-5.5/mysql-5.5.56-linux-glibc2.5-x86_64.tar.gz

Open the terminal and follow along:

• Uninstall any existing version of MySQL

sudo rm /var/lib/mysql/ -R

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class CommentsController < ApplicationController
  before_action :find_commentable, only: %i[new create destroy]

  def new
    @comment = Comment.new
  end

  def create
    @comment = @commentable.comments.new(comment_params)
    if @comment.save

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00:31 bundler:install
      The Gemfile's dependencies are satisfied, skipping installation
00:32 deploy:assets:precompile
      01 $HOME/.rbenv/bin/rbenv exec bundle exec rake assets:precompile
      01 yarn install v1.15.2
      01 [1/4] Resolving packages...
      01 [2/4] Fetching packages...
      01 [3/4] Linking dependencies...
      01 [4/4] Building fresh packages...
      01 success Saved lockfile.

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```
ActionController::RoutingError (No route matches [GET] "/assets/typed.min.js.map"):
  
actionpack (5.2.3) lib/action_dispatch/middleware/debug_exceptions.rb:65:in `call'
web-console (3.7.0) lib/web_console/middleware.rb:135:in `call_app'
web-console (3.7.0) lib/web_console/middleware.rb:30:in `block in call'
web-console (3.7.0) lib/web_console/middleware.rb:20:in `catch'
web-console (3.7.0) lib/web_console/middleware.rb:20:in `call'
actionpack (5.2.3) lib/action_dispatch/middleware/show_exceptions.rb:33:in `call'
railties (5.2.3) lib/rails/rack/logger.rb:38:in `call_app'

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@media (max-width: 1200px) {
  legend {
    font-size: calc(1.275rem + 0.3vw);
  }
  h1,
  .h1 {
    font-size: calc(1.375rem + 1.5vw);
  }
  h2,
  .h2 {