Я пытаюсь сделать приложение для парковки.Что мне нужно, это сохранить несколько экземпляров одного и того же объекта в БД.По сути, если пользователь выбирает, что он хочет парковать с 2018-09-23 (parking_on) до 2018-09-28 (parking_off), мне нужно сохранить одну и ту же модель 5 раз со всеми необходимыми деталями.
Это мои модели:
from django.db import models
from django.urls import reverse
from django.db.models.signals import pre_save
from django.utils.text import slugify
from django.conf import settings
from django.utils import timezone
# from datetime import datetime
from django.contrib.auth.models import User
from django.core.exceptions import ValidationError
from django.utils.translation import gettext_lazy as _
from datetime import datetime, timedelta, time
today = datetime.now().date()
tomorrow = today + timedelta(1)
now = datetime.now()
l = now.hour
m=int(now.strftime("%H"))
class ParcareManager(models.Manager):
def active(self, *args, **kwargs):
return super(ParcareManager, self).filter(draft=False).filter(parking_on__lte=timezone.now())
class Parcare(models.Model):
PARKING_PLOT = (
('P1', 'Parking #1'), ('P2', 'Parking #2'),('P3', 'Parking #3'))
user = models.ForeignKey(settings.AUTH_USER_MODEL, blank=True,
null=True, default=1, on_delete=True)
email=models.EmailField(blank=True, null=True)
parking_on = models.DateField(auto_now=False, auto_now_add=False,
blank=True, null=True,
help_text='Alege data cand doresti sa vii in office')
parking_off = models.DateField(
auto_now=False, auto_now_add=False, blank=True, null=True, help_text='Alege Data Plecarii')
numar_masina = models.CharField(max_length=8, default="IF77WXV",
blank=True, null=True, help_text='Introdu Numarul Masinii')
location = models.CharField(max_length=3, blank=True, default="P1",
null=True, choices=PARKING_PLOT,
help_text='Alege Locul de Parcare Dorit')
updated = models.DateTimeField(auto_now=True, auto_now_add=False,blank=True, null=True)
timestamp=models.DateTimeField(auto_now=False, auto_now_add=True,blank=True, null=True)
venire = models.TimeField(default=time(9, 00), auto_now=False,
auto_now_add=False, help_text='Alege Ora Venirii')
plecare = models.TimeField(default=time(
18, 00), auto_now=False, auto_now_add=False, help_text='Alege Ora Plecarii')
booked = models.BooleanField(default=1)
objects = ParcareManager()
def __str__(self):
return self.location + " | " + str(self.parking_on) + " | " + str(self.parking_off)
class Meta:
verbose_name_plural = "parcare"
ordering = ["-parking_on"]
def clean(self):
q = Parcare.objects.filter(parking_on=self.parking_on)
if self.location in q: #nu merge sa filtram si sa vedem daca locul a fost luat deja
raise ValidationError(_('Sorry this plot is already taken!'))
if self.parking_on == today: # merge--vedem dak parcam azi si dak e tecut de ora 16
raise ValidationError({'parking_on': _('Please book for a date starting tomorrow')})
if self.parking_off < self.parking_on: #merge-vedem daca bookam in trecut
raise ValidationError({'parking_off': _('You cant book for a past date!')})
if m < 17: # se schimba semnul in > cand va fi in productie
raise ValidationError({'parking_on':_('Sorry the booking session is closed!')})
if self.parking_on != self.parking_off:
delta= self.parking_off.day-self.parking_on.day
print(delta)
for i in range(delta):
self.user=self.user
self.email=self.email
self.parking_on=self.parking_on+timedelta(i)
self.parking_off=self.parking_off
self.numar_masina=self.numar_masina
self.location=self.location
self.venire="00:00:00"
self.plecare = "00:00:00"
self.booked=self.booked
self.save
Если бы кто-то мог мне помочь, я был бы вам очень обязан!