Produits Entr'ouvert » Calebasse

from django.contrib.auth.models import Group

from datetime import timedelta, datetime

__EPOCH = datetime(day=5,month=1,year=1970)

def __date_to_datetime(date):

    return datetime(date.year, date.month, date.day)

def weeks_since_epoch(date):

    days_since_epoch = (__date_to_datetime(date) - __EPOCH).days

    return days_since_epoch // 7

def weekday_ranks(date):

    '''Returns n so that if date occurs on a certain weekday, this is the

       n-th weekday of the month counting from the first. Also return -n-1 if

       this is the n-th weekday of the month counting from the last.

    '''

    n = 0

    month = date.month

    i = date - timedelta(days=7)

    while i.month == month:

        n += 1

        i = i - timedelta(days=7)

    m = -1

    i = date + timedelta(days=7)

    while i.month == month:

        m -= 1

        i = i + timedelta(days=7)

    return n, m

def is_super_user(user):

    if not user or not user.is_authenticated():

        return False

    if user.is_superuser:

        return True

    super_group = None

    try:

        super_group = Group.objects.get(name='Super utilisateurs')

    except:

        return False

    if super_group in user.groups.all():

        return True

    return False

def is_validator(user):

    if is_super_user(user):

        return True

    if not user or not user.is_authenticated():

        return False

    validator_group = None

    try:

        validator_group = Group.objects.get(name='Administratifs')

    except:

        return False

    if validator_group in user.groups.all():

        return True

    return False

def get_nir_control_key(nir):

    try:

        # Corse dpt 2A et 2B

        minus = 0

        if nir[6] in ('A', 'a'):

            nir = [c for c in nir]

            nir[6] = '0'

            nir = ''.join(nir)

            minus = 1000000

        elif nir[6] in ('B', 'b'):

            nir = [c for c in nir]

            nir[6] = '0'

            nir = ''.join(nir)

            minus = 2000000

        nir = int(nir) - minus

        return (97 - (nir % 97))

    except:

        return None