dynamicweb/digitalglarus/models.py

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import calendar
from datetime import datetime, date, timedelta
from dateutil.relativedelta import relativedelta
from django.db import models
from django.db.models import Q
from cms.models import CMSPlugin
from filer.fields.image import FilerImageField
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from django.core.urlresolvers import reverse
from django.utils.functional import cached_property
from .mixins import Ordereable
# from membership.models import StripeCustomer
# from utils.models import BillingAddress
class MembershipType(models.Model):
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STANDARD = 'standard'
MEMBERSHIP_TYPES = (
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(STANDARD, 'Standard'),
)
name = models.CharField(choices=MEMBERSHIP_TYPES, max_length=20)
price = models.FloatField()
@cached_property
def days_left(self):
current_date = date.today()
_, days_in_month = calendar.monthrange(current_date.year, current_date.month)
pass_days = current_date.day
days_left = days_in_month - pass_days + 1
return days_left
@cached_property
def first_month_price(self):
current_date = date.today()
_, days_in_month = calendar.monthrange(current_date.year, current_date.month)
pass_days = current_date.day
days_left = days_in_month - pass_days + 1
percentage = days_left / days_in_month
membership_price = self.price
final_price = membership_price * percentage
return final_price
@cached_property
def first_month_range(self):
current_date = date.today()
_, days_in_month = calendar.monthrange(current_date.year, current_date.month)
pass_days = current_date.day
days_left = days_in_month - pass_days
end_date = current_date + timedelta(days=days_left)
return current_date, end_date
@cached_property
def first_month_formated_range(self):
start_date, end_date = self.first_month_range
return "{} - {}".format(datetime.strftime(start_date, "%b, %d %Y"),
datetime.strftime(end_date, "%b, %d %Y"))
class Membership(models.Model):
type = models.ForeignKey(MembershipType)
active = models.BooleanField(default=True)
@classmethod
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def is_digitalglarus_active_member(cls, user):
past_month = (datetime.today() - relativedelta(months=1)).month
has_booking_current_month = Q(membershiporder__customer__user=user,
membershiporder__created_at__month=datetime.today().month)
has_booking_past_month = Q(membershiporder__customer__user=user,
membershiporder__created_at__month=past_month)
active_membership = Q(active=True)
return cls.objects.filter(has_booking_past_month | has_booking_current_month).\
filter(active_membership).exists()
@classmethod
def create(cls, data):
instance = cls.objects.create(**data)
return instance
def deactivate(self):
self.active = False
self.save()
class MembershipOrder(Ordereable, models.Model):
membership = models.ForeignKey(Membership)
def first_membership_range_date(self):
start_date = self.created_at
_, days_in_month = calendar.monthrange(start_date.year,
start_date.month)
pass_days = start_date.day
days_left = days_in_month - pass_days
end_date = start_date + timedelta(days=days_left)
return start_date, end_date
@classmethod
def current_membership(cls, user):
last_payment = cls.objects.\
filter(customer__user=user).last()
start_date = last_payment.created_at
_, days_in_month = calendar.monthrange(start_date.year,
start_date.month)
start_date.replace(day=1)
end_date = start_date + timedelta(days=days_in_month)
return start_date, end_date
def get_membership_range_date(self):
start_date = self.created_at
_, days_in_month = calendar.monthrange(start_date.year,
start_date.month)
start_date.replace(day=1)
end_date = start_date + timedelta(days=days_in_month)
return start_date, end_date
@classmethod
def create(cls, data):
stripe_charge = data.pop('stripe_charge', None)
instance = cls.objects.create(**data)
instance.stripe_charge_id = stripe_charge.id
instance.last4 = stripe_charge.source.last4
instance.cc_brand = stripe_charge.source.brand
instance.save()
return instance
class BookingPrice(models.Model):
price_per_day = models.FloatField()
special_month_price = models.FloatField()
class Booking(models.Model):
start_date = models.DateField()
end_date = models.DateField()
price = models.FloatField()
free_days = models.IntegerField(default=0)
final_price = models.FloatField()
@classmethod
def create(cls, data):
instance = cls.objects.create(**data)
return instance
@classmethod
def get_ramaining_free_days(cls, user, start_date, end_date):
TWO_DAYS = 2
start_month = start_date.month
end_month = end_date.month
months = abs(start_month - (end_month + 12) if end_month < start_month
else end_month - start_month)
current_date = datetime.today()
current_month_bookings = cls.objects.filter(bookingorder__customer__user=user,
start_date__month=current_date.month)
free_days_this_month = TWO_DAYS - sum(map(lambda x: x.free_days, current_month_bookings))
total_free_days = months * TWO_DAYS + free_days_this_month
return total_free_days
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@staticmethod
def membership_required_booking_months(start_date, end_date):
start_month = start_date.month
end_month = end_date.month
months = abs(start_month - (end_month + 12) if end_month < start_month
else end_month - start_month)
return months
@classmethod
def booking_price(cls, user, start_date, end_date):
MAX_MONTH_PRICE = BookingPrice.objects.last().special_month_price
MAX_MONTH_DAYS_PROMOTION = 31
MIN_MONTH_DAYS_PROMOTION = 19
booking_prices = BookingPrice.objects.last()
price_per_day = booking_prices.price_per_day
booking_days = (end_date - start_date).days + 1
months = booking_days // MAX_MONTH_DAYS_PROMOTION
remanent_days = booking_days % MAX_MONTH_DAYS_PROMOTION
months_prices = months * MAX_MONTH_PRICE
remanent_days_price = remanent_days * price_per_day \
if remanent_days <= MIN_MONTH_DAYS_PROMOTION else MAX_MONTH_PRICE
normal_price = months_prices + remanent_days_price
free_days = cls.get_ramaining_free_days(user, start_date, end_date)
final_booking_price = normal_price - (free_days * price_per_day)
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# Calculating membership required months price for booking
required_membership_months = 0
membership_booking_price = 0.0
if BookingOrder.user_has_not_bookings(user):
today = datetime.today().date()
membership_price = MembershipType.objects.get(name=MembershipType.STANDARD).price
required_membership_months = cls.membership_required_booking_months(today, end_date)
membership_booking_price = membership_price * required_membership_months
# Add required membership months to final prices
final_booking_price += membership_booking_price
return normal_price, final_booking_price, free_days,\
required_membership_months, membership_booking_price
class BookingOrder(Ordereable, models.Model):
booking = models.OneToOneField(Booking)
original_price = models.FloatField()
special_month_price = models.FloatField()
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membership_required_months = models.IntegerField(default=0)
membership_required_months_price = models.FloatField(default=0)
@classmethod
def user_has_not_bookings(cls, user):
return cls.objects.filter(customer__user=user).exists()
def booking_days(self):
return (self.booking.end_date - self.booking.start_date).days + 1
class Supporter(models.Model):
name = models.CharField(max_length=200)
description = models.TextField(null=True, blank=True)
def __str__(self):
return "%s" % (self.name)
def get_absolute_url(self):
return reverse('dgSupporters_view', args=[self.pk])
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class DGGallery(models.Model):
parent = models.ForeignKey('self', blank=True, null=True)
name = models.CharField(max_length=30)
def __str__(self):
return "%s" % (self.name)
def get_absolute_url(self):
return reverse('dgGallery_view', args=[self.pk])
class Meta:
verbose_name_plural = 'dgGallery'
#
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class DGPicture(models.Model):
gallery = models.ForeignKey(DGGallery)
image = FilerImageField(related_name='dg_gallery')
description = models.CharField(max_length=60)
def __str__(self):
return "%s" % (self.image.name)
class DGGalleryPlugin(CMSPlugin):
dgGallery = models.ForeignKey(DGGallery)
class DGSupportersPlugin(CMSPlugin):
pass