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@ryanpitts
ryanpitts / gist:1304725
Created October 21, 2011 19:34
GROUP BY and Select MAX from each group in Django, 2 queries
'''
given a Model with:
category = models.CharField(max_length=32, choices=CATEGORY_CHOICES)
pubdate = models.DateTimeField(default=datetime.now)
<other fields>
Fetch the item from each category with the latest pubdate.
'''
@jexchan
jexchan / multiple_ssh_setting.md
Created April 10, 2012 15:00
Multiple SSH keys for different github accounts

Multiple SSH Keys settings for different github account

create different public key

create different ssh key according the article Mac Set-Up Git

$ ssh-keygen -t rsa -C "your_email@youremail.com"
@rgreenjr
rgreenjr / postgres_queries_and_commands.sql
Last active June 20, 2024 14:04
Useful PostgreSQL Queries and Commands
-- show running queries (pre 9.2)
SELECT procpid, age(clock_timestamp(), query_start), usename, current_query
FROM pg_stat_activity
WHERE current_query != '<IDLE>' AND current_query NOT ILIKE '%pg_stat_activity%'
ORDER BY query_start desc;
-- show running queries (9.2)
SELECT pid, age(clock_timestamp(), query_start), usename, query
FROM pg_stat_activity
WHERE query != '<IDLE>' AND query NOT ILIKE '%pg_stat_activity%'
@nhoizey
nhoizey / screenshots.js
Created November 12, 2012 17:07
Take screenshots at different viewport sizes using CasperJS
/*
* Takes provided URL passed as argument and make screenshots of this page with several viewport sizes.
* These viewport sizes are arbitrary, taken from iPhone & iPad specs, modify the array as needed
*
* Usage:
* $ casperjs screenshots.js http://example.com
*/
var casper = require("casper").create();
@lastguest
lastguest / Chainable.class.php
Last active March 17, 2023 09:46
PHP Class Chainable.Wrapper for convenient chaining methods.
<?php
/**
* Class Chainable
* Wrapper for convenient chaining methods
*
* @author Stefano Azzolini <lastguest@gmail.com>
*/
class Chainable {
private $instance = null;
@CMCDragonkai
CMCDragonkai / angularjs_directive_attribute_explanation.md
Last active November 29, 2023 15:35
JS: AngularJS Directive Attribute Binding Explanation

AngularJS Directive Attribute Binding Explanation

When using directives, you often need to pass parameters to the directive. This can be done in several ways. The first 3 can be used whether scope is true or false. This is still a WIP, so validate for yourself.

  1. Raw Attribute Strings

    <div my-directive="some string" another-param="another string"></div>
@mikesmullin
mikesmullin / watch.sh
Last active April 26, 2023 05:20
watch is a linux bash script to monitor file modification recursively and execute bash commands as changes occur
#!/usr/bin/env bash
# script: watch
# author: Mike Smullin <mike@smullindesign.com>
# license: GPLv3
# description:
# watches the given path for changes
# and executes a given command when changes occur
# usage:
# watch <path> <cmd...>
#
@okunishinishi
okunishinishi / Remove all git tags
Created March 8, 2014 03:12
Delete all git remote tags
#Delete local tags.
git tag -l | xargs git tag -d
#Fetch remote tags.
git fetch
#Delete remote tags.
git tag -l | xargs -n 1 git push --delete origin
#Delete local tasg.
git tag -l | xargs git tag -d
@anlutro
anlutro / install.bash
Last active May 7, 2019 05:07
Simple Laravel 4 deployment using git hooks and shell scripts
#!/usr/bin/env bash
set -e
# function to easily determine if a set of programs and files are available.
function deploy_programs_available {
local programs=(npm bower grunt)
local files=(package.json bower.json Gruntfile.js)
for p in ${programs[@]}; do
@morozgrafix
morozgrafix / CasperJS Test.sublime-build
Created March 18, 2014 18:56
CasperJS Build System for Sublime Text 2
{
"cmd": ["casperjs", "--no-colors", "test", "$file"],
"selector": "source.js"
}