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@lsbardel
lsbardel / LazyChoiceField.py
Created November 11, 2009 22:25
Lazy ChoiceField for Django. This field will unwind choices only when a new instance of a Form is created.
class LazyChoiceField(forms.ChoiceField):
'''
A Lazy ChoiceField.
This ChoiceField does not unwind choices until a deepcopy is called on it.
This allows for dynamic choices generation every time an instance of a Form is created.
'''
def __init__(self, *args, **kwargs):
# remove choices from kwargs.
# choices should be an iterable
self._lazy_choices = kwargs.pop('choices',())
"""
jQuery templates use constructs like:
{{if condition}} print something{{/if}}
This, of course, completely screws up Django templates,
because Django thinks {{ and }} mean something.
Wrap {% verbatim %} and {% endverbatim %} around those
blocks of jQuery templates and this will try its best
@waynemoore
waynemoore / month_day_range.py
Created July 27, 2011 11:01
Get first and last day of a particular month using python-dateutil.
import datetime
# requires python-dateutil (http://labix.org/python-dateutil)
from dateutil.relativedelta import relativedelta
def get_month_day_range(date):
"""
For a date 'date' returns the start and end date for the month of 'date'.
Month with 31 days:
@rgreenjr
rgreenjr / postgres_queries_and_commands.sql
Last active June 17, 2024 15:54
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%'
@guillaumepiot
guillaumepiot / gist:3939452
Created October 23, 2012 15:28
ANGULARJS - Django CSRF Token header setup
var myApp = angular.module('myApp').config(function($httpProvider) {
$httpProvider.defaults.headers.post['X-CSRFToken'] = $('input[name=csrfmiddlewaretoken]').val();
});
@jtdp
jtdp / gist:5443498
Last active May 23, 2024 16:23
Revert file permission changes in local git repository.. Very useful when you change permissions due to working on a samba share. Lifted from: http://stackoverflow.com/questions/2517339/git-how-to-recover-the-file-permissions-git-thinks-the-file-should-be
git diff -p \
| grep -E '^(diff|old mode|new mode)' \
| sed -e 's/^old/NEW/;s/^new/old/;s/^NEW/new/' \
| git apply
@maxim
maxim / task.yml
Created June 12, 2014 11:09
Adding github to known_hosts with ansible
- name: ensure github.com is a known host
lineinfile:
dest: /root/.ssh/known_hosts
create: yes
state: present
line: "{{ lookup('pipe', 'ssh-keyscan -t rsa github.com') }}"
regexp: "^github\\.com"
@michaelBenin
michaelBenin / sort_requirements.py
Created July 20, 2014 21:48
Sort requirements pip files or requirements.txt for python dependencies
requirements_file = 'base.pip'
requirements = open(requirements_file, 'r')
content = requirements.read().splitlines()
content = list(set(content))
content.sort(key=lambda y: y.lower())
content = '\n'.join(content)
file = open('sorted_'+requirements_file, 'w')
file.write(content)
@tevino
tevino / fix_virtualenv
Last active March 24, 2024 09:41
Fix python virtualenv after python update
#!/usr/bin/env bash
ENV_PATH="$(dirname "$(dirname "$(which pip)")")"
SYSTEM_VIRTUALENV="$(which -a virtualenv|tail -1)"
BAD_ENV_PATHS="/usr/local"
echo "Ensure the root of the broken virtualenv:"
echo " $ENV_PATH"
@treyhunner
treyhunner / time_dict_merge.py
Last active November 3, 2023 08:13
Test performance of different dictionary merging functions in Python
"""
Results:
multiple_update: 33 ms
copy_and_update: 27 ms
dict_constructor: 29 ms
kwargs_hack: 33 ms
dict_comprehension: 33 ms
concatenate_items: 81 ms
union_items: 81 ms