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from django.contrib.auth.models import Group
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from datetime import timedelta, datetime
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__EPOCH = datetime(day=5,month=1,year=1970)
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def __date_to_datetime(date):
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return datetime(date.year, date.month, date.day)
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def weeks_since_epoch(date):
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days_since_epoch = (__date_to_datetime(date) - __EPOCH).days
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return days_since_epoch // 7
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def weekday_ranks(date):
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'''Returns n so that if date occurs on a certain weekday, this is the
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n-th weekday of the month counting from the first. Also return -n-1 if
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this is the n-th weekday of the month counting from the last.
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'''
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n = 0
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month = date.month
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i = date - timedelta(days=7)
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while i.month == month:
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n += 1
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i = i - timedelta(days=7)
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m = -1
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i = date + timedelta(days=7)
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while i.month == month:
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m -= 1
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i = i + timedelta(days=7)
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return n, m
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def is_super_user(user):
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if not user or not user.is_authenticated():
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return False
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if user.is_superuser:
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return True
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super_group = None
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try:
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super_group = Group.objects.get(name='Super utilisateurs')
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except:
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return False
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if super_group in user.groups.all():
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return True
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return False
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def is_validator(user):
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if is_super_user(user):
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return True
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if not user or not user.is_authenticated():
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return False
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validator_group = None
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try:
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validator_group = Group.objects.get(name='Administratifs')
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except:
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return False
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if validator_group in user.groups.all():
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return True
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return False
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def get_nir_control_key(nir):
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try:
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# Corse dpt 2A et 2B
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minus = 0
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if nir[6] in ('A', 'a'):
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nir = [c for c in nir]
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nir[6] = '0'
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nir = ''.join(nir)
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minus = 1000000
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elif nir[6] in ('B', 'b'):
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nir = [c for c in nir]
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nir[6] = '0'
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nir = ''.join(nir)
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minus = 2000000
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nir = int(nir) - minus
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return (97 - (nir % 97))
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except:
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return None
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