Skip to content

Instantly share code, notes, and snippets.

View 3h5a9's full-sized avatar

SM EHSAN 3h5a9

View GitHub Profile
3h5a9 / environment.rb
Created April 30, 2019 14:45
How to remove field_with_errors wrapper in Rails
/*Add the following line of codes into config/environemnt.rb file*/
ActionView::Base.field_error_proc = do |html_tag, instance|
3h5a9 / ubuntu.txt
Last active September 3, 2021 17:49
Necessary things to do in newly installed Ubuntu (20.04)
Update and Upgrade Ubuntu
sudo apt update && sudo apt upgrade -y
Necessarry Ubuntu Tools
1] Tweak-Tool [sudo apt install gnome-tweak-tool]
3h5a9 / rip
Created August 29, 2021 06:40
rails installation process with warning
nginit@smehsan:~/wip/rails$ rails new myapp -d postgresql
create Rakefile
create .ruby-version
create .gitignore
create .gitattributes
create Gemfile
run git init from "."
3h5a9 / elos-pgsql.txt
Last active August 27, 2021 08:40
Install PostgreSQL latest version on Elementary OS
sudo apt-get install curl ca-certificates gnupg && curl | sudo apt-key add -
sudo sh -c 'echo "deb bionic-pgdg main" > /etc/apt/sources.list.d/pgdg.list'
sudo apt update && sudo apt-get install postgresql-12
Create a new user
3h5a9 / mysqlshortcut.txt
Last active October 8, 2020 14:08
Mysql Showrtcut for Linux (Ubuntu)
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
3h5a9 / MySql-5.5-installation
Created September 28, 2020 21:18 — forked from ahmadhasankhan/MySql-5.5-installation
Install MySQL 5.5.xx on Ubuntu

MySQL Download URL

Open the terminal and follow along:

  • Uninstall any existing version of MySQL
sudo rm /var/lib/mysql/ -R
3h5a9 / comments_controller.rb
Created May 4, 2020 08:55
Nested Comment wrong redirection.
class CommentsController < ApplicationController
before_action :find_commentable, only: %i[new create destroy]
def new
@comment =
def create
@comment =
3h5a9 / error
Last active August 23, 2019 21:30
Ruby on rails execjs runtime error!
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.
ActionController::RoutingError (No route matches [GET] "/assets/"):
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'
3h5a9 / rfs.scss
Created August 4, 2019 19:59
Bootstrap responsive font size scss
@media (max-width: 1200px) {
legend {
font-size: calc(1.275rem + 0.3vw);
.h1 {
font-size: calc(1.375rem + 1.5vw);
.h2 {