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Ivan korun

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@korun
korun / octo.gif
Last active August 29, 2015 14:05
At work.
octo.gif
@tansengming
tansengming / define_method.rb
Created November 3, 2009 02:55
some notes to help me with define_method
# here lies some notes to help me with define_method
class MetaTest
define_method(:meta_1) do
puts 'm.meta_1'
end
def initialize
@a_var = 'iable'
end
@mikeumus
mikeumus / upgrade_postgres-9-3_9-4.sh
Last active April 13, 2016 08:22 — forked from tamoyal/gist:2ea1fcdf99c819b4e07d
Upgrade Postgres 9.3 to 9.4 on Ubuntu Trusty
#!/bin/bash
# Be sure to save your config files. Optional but I do:
sudo cp /etc/postgresql/9.3/main/postgresql.conf ~
sudo cp /etc/postgresql/9.3/main/pg_hba.conf ~
# Package repo (for apt-get)
wget --quiet -O - https://www.postgresql.org/media/keys/ACCC4CF8.asc | sudo apt-key add -
sudo sh -c 'echo "deb http://apt.postgresql.org/pub/repos/apt/ trusty-pgdg main" >> /etc/apt/sources.list.d/postgresql.list'
# Also probably optional but I like to update sources and upgrade
@tansengming
tansengming / configure.rb
Created July 9, 2012 07:37
Ruby configure blocks
# How Clearance / Hoptoad does it
module Clearance
class << self
attr_accessor :configuration
end
def self.configure
self.configuration ||= Configuration.new
yield(configuration)
end
@yaraki
yaraki / dijkstra.rb
Created February 3, 2012 13:58
Dijkstra Shortest Path Algorithm in Ruby
#!/usr/bin/ruby1.9.1 -Kw
# -*- coding: utf-8 -*-
class Edge
attr_accessor :src, :dst, :length
def initialize(src, dst, length = 1)
@src = src
@dst = dst
@length = length
@sumskyi
sumskyi / README.md
Last active June 7, 2022 18:49
rails STI with custom "type" field and storing there value different from ClassName

GeoEntity.last

SELECT geo_entities.* FROM geo_entities ORDER BY geo_entities.id DESC LIMIT 1

returns:

County id: 4, eid: nil, pid: nil, ename: nil, etype: 2, created_at: "2011-11-21 06:26:37", updated_at: "2011-11-21 06:26:37"

@3dd13
3dd13 / ruby_ftp_example.rb
Created November 5, 2011 17:08
Sample code of using Ruby Net::FTP library. Login to FTP server, list out files, check directory existence, upload files
require 'net/ftp'
CONTENT_SERVER_DOMAIN_NAME = "one-of-the-ftp-server.thought-sauce.com.hk"
CONTENT_SERVER_FTP_LOGIN = "saucy-ftp-server-login"
CONTENT_SERVER_FTP_PASSWORD = "saucy-ftp-server-password"
# LOGIN and LIST available files at default home directory
Net::FTP.open(CONTENT_SERVER_DOMAIN_NAME, CONTENT_SERVER_FTP_LOGIN, CONTENT_SERVER_FTP_PASSWORD) do |ftp|
files = ftp.list
@justecorruptio
justecorruptio / 2048.c
Created April 4, 2014 03:49
Tiny 2048 in C!
M[16],X=16,W,k;main(){T(system("stty cbreak")
);puts(W&1?"WIN":"LOSE");}K[]={2,3,1};s(f,d,i
,j,l,P){for(i=4;i--;)for(j=k=l=0;k<4;)j<4?P=M
[w(d,i,j++)],W|=P>>11,l*P&&(f?M[w(d,i,k)]=l<<
(l==P):0,k++),l=l?P?l-P?P:0:l:P:(f?M[w(d,i,k)
]=l:0,++k,W|=2*!l,l=0);}w(d,i,j){return d?w(d
-1,j,3-i):4*i+j;}T(i){for(i=X+rand()%X;M[i%X]
*i;i--);i?M[i%X]=2<<rand()%2:0;for(W=i=0;i<4;
)s(0,i++);for(i=X,puts("\e[2J\e[H");i--;i%4||
puts(""))printf(M[i]?"%4d|":" |",M[i]);W-2
@janko
janko / 01-safe-download.rb
Last active January 9, 2023 11:40
A safe way in Ruby to download a file to disk using open-uri (with/without comments)
require "open-uri"
require "net/http"
Error = Class.new(StandardError)
DOWNLOAD_ERRORS = [
SocketError,
OpenURI::HTTPError,
RuntimeError,
URI::InvalidURIError,
@suryart
suryart / application.html.erb
Last active October 26, 2023 00:16
Rails 4 flash messages using Twitter Bootstrap(bootstrap-sass: https://github.com/thomas-mcdonald/bootstrap-sass). An improved version of https://gist.github.com/roberto/3344628
// layout file
<body>
<div class="container">
<%= flash_messages %>
<%= yield %>
</div><!-- /container -->
</body>