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"""Add user created_by and modified_by foreign key refs to any model automatically. | |
Almost entirely taken from https://github.com/Atomidata/django-audit-log/blob/master/audit_log/middleware.py""" | |
from django.db.models import signals | |
from django.utils.functional import curry | |
class WhodidMiddleware(object): | |
def process_request(self, request): | |
if not request.method in ('GET', 'HEAD', 'OPTIONS', 'TRACE'): | |
if hasattr(request, 'user') and request.user.is_authenticated(): | |
user = request.user |
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import math | |
class Vector(object): | |
def __init__(self, *args): | |
""" Create a vector, example: v = Vector(1,2) """ | |
if len(args)==0: self.values = (0,0) | |
else: self.values = args | |
def norm(self): | |
""" Returns the norm (length, magnitude) of the vector """ |