saifulapm

I’ve recently received this error when using UTF8MB4 with Rails.

Mysql2::Error: Specified key was too long; max key length is 767 bytes

After finding this issue on the Rails GitHub page, this is the fix:

Create a file called config/initializers/mysql.rb and copy the following into it

saifulapm

Download free egghead.io videos

Download Egghead.io videos using Lynx Browser and youtube-dl. This method will only work for videos that do not require a pro account.

Prerequesits

You need a Unix/Linux box with Lynx console browser and Youtube-dl installed.

saifulapm

" For vundle
filetype off  
set nocompatible " be iMproved
set rtp+=~/.vim/bundle/Vundle.vim  
call vundle#rc()

" Git tools
Bundle 'tpope/vim-fugitive' 

" Dependency managment

saifulapm

Create database

rake db:create

Create database table

This will creates a migration file in /db/migrate without table definition.

rails g migration create_<TABLE>

saifulapm

• Dynamic Dispatch
• Dynamic Method
• Ghost Methods
• Dynamic Proxies
• Blank Slate
• Kernel Method
• Flattening the Scope (aka Nested Lexical Scopes)
• Context Probe
• Class Eval (not really a 'spell' more just a demonstration of its usage)
• Class Macros

saifulapm

VIM Cheatsheet

Motion, keyboard commands and shortcuts for VI Improved

• Legend
• Motion / Normal mode
• Insert mode
• Changes
• Yank/Put or Copy/Paste
• Visual/Visual Block Mode

saifulapm

The basics Splits Movement

Create a vertical split using :vsp and horizontal with :sp.

By default, they duplicate the current buffer. This command also takes a filename:

:vsp ~/.vimrc

You can specify the new split height by prefixing with a number: