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@mikhailov
mikhailov / installation.sh
Created November 23, 2010 15:18
nginx+passenger (real production config)
# NOTICE: to get Nginx+Unicorn best-practices configuration see the gist https://gist.github.com/3052776
$ cd /usr/src
$ wget http://nginx.org/download/nginx-1.2.1.tar.gz
$ tar xzvf ./nginx-1.2.1.tar.gz && rm -f ./nginx-1.2.1.tar.gz
$ wget ftp://ftp.csx.cam.ac.uk/pub/software/programming/pcre/pcre-8.30.tar.gz
$ tar xzvf pcre-8.30.tar.gz && rm -f ./pcre-8.30.tar.gz
$ wget http://www.openssl.org/source/openssl-1.0.1c.tar.gz
@stream7
stream7 / migration_integer_limit_option
Created July 7, 2011 14:09
Rails migrations integer :limit option
literally always have to look up the meaning of :limit in migrations when it comes to integer values. Here's an overview. Now let's memorise it (oh, this works for MySQL, other databases may work differently):
:limit Numeric Type Column Size Max value
1 tinyint 1 byte 127
2 smallint 2 bytes 32767
3 mediumint 3 byte 8388607
nil, 4, 11 int(11) 4 byte 2147483647
5..8 bigint 8 byte 9223372036854775807
Note: by default MySQL uses signed integers and Rails has no way (that I know of) to change this behaviour. Subsequently, the max. values noted are for signed integers.
@bquorning
bquorning / gist:1146099
Created August 15, 2011 12:05
Careful Cutting To Get Faster RSpec Runs with Rails -- fix for Devise
# Don't need passwords in test DB to be secure, but we would like 'em to be
# fast -- and the stretches mechanism is intended to make passwords
# computationally expensive.
module Devise
module Models
module DatabaseAuthenticatable
def valid_password?(password)
return false if encrypted_password.blank?
@loe
loe / 20-ufw.conf
Created August 31, 2011 18:36
Rsyslog Configuration
# Log kernel generated UFW log messages to file
:msg,contains,"[UFW " /var/log/ufw.log
# Uncomment the following to stop logging anything that matches the last rule.
# Doing this will stop logging kernel generated UFW log messages to the file
# normally containing kern.* messages (eg, /var/log/kern.log)
#& ~
@steve9001
steve9001 / application.rb
Created December 7, 2011 16:18
Rails middleware to provide information about errors during requests
module MyApp
class Application < Rails::Application
if Rails.env == 'test'
require 'diagnostic'
config.middleware.use(MyApp::DiagnosticMiddleware)
end
end
end
@dblock
dblock / assert_url_helper.rb
Last active September 18, 2018 03:47
A monkey patch for serving compressed assets for Rails 3.0 (asset_tag_helper.rb) and another for Rails 3.1 (asset_paths.rb).
# Rails 4
require 'action_view/helpers/asset_url_helper'
module ActionView
module Helpers
module AssetUrlHelper
def accept_encoding?(encoding)
request = self.request if respond_to?(:request)
return false unless request
@bryanjswift
bryanjswift / .rtorrent.rc
Created December 28, 2011 02:42
rtorrent configuration file with description
# This is an example resource file for rTorrent. Copy to
# ~/.rtorrent.rc and enable/modify the options as needed. Remember to
# uncomment the options you wish to enable.
# Maximum and minimum number of peers to connect to per torrent.
min_peers = 1
max_peers = 100
# Same as above but for seeding completed torrents (-1 = same as downloading)
@rstacruz
rstacruz / index.md
Last active November 3, 2023 09:56
Rails models cheatsheet

Rails Models

Generating models

$ rails g model User

Associations

belongs_to

has_one

@kagemusha
kagemusha / gist:1569836
Created January 6, 2012 09:20
Dump Heroku Postgres DB and load locally
Get the Heroku db as detailed here:
http://devcenter.heroku.com/articles/pgbackups#exporting_via_a_backup
1. heroku pgbackups:capture
2. heroku pgbackups:url <backup_num> #=>backup_url
- get backup_num with cmd "heroku pgbackups"
3. curl -o latest.dump <backup_url>
Then locally do:
$ pg_restore --verbose --clean --no-acl --no-owner -h localhost -U myuser -d mydb latest.dump
@scottsbaldwin
scottsbaldwin / linearregression.rb
Created February 3, 2012 23:14
Ruby Linear Regression Calculator
# Adapted from a C# example here:
# http://stackoverflow.com/questions/43224/how-do-i-calculate-a-trendline-for-a-graph
# And thanks to John Esser for helping figure out how to
# calculate the targets to stabilize a negative slope!
class LinearRegression
attr_accessor :slope, :intercept
# Pass in an array of values to get the regression on