You need to re-create your database.
Good way is to create a script that populates your DB with some test
data, and drop DB after a major change, or when something breaks, and
re-create it.
For now, you should try to create different DB (to preserve your data)
and do
python manage.py syncdb
Lukas
On 03/28/2014 03:24 PM, Warren Jacobus wrote:
Hi,
I've been trying to create a simple flight booking system but seem to
have trouble.
When trying to create a Flight object it says that aircraft_id may not
be null
and when trying to set a Passenger object it says flight_id may not be
null
Here is my models.py file
from django.db import models
2 from django.utils import timezone
3 import datetime
4
# Create your models here.
class Aircraft(models.Model):
aircraft_model = models.CharField(max_length=30)
aircraft_num_seats = models.IntegerField(default=50)
available = models.BooleanField(default=False)
def __unicode__(self):
return "%s , %d , %s" %
(self.aircraft_model,self.aircraft_num_seats,self.available)
class Passenger(models.Model):
passenger_name = models.CharField(max_length=30,default="John")
passenger_surname= models.CharField(max_length=30,default="Doe")
def __unicode__(self):
return "%s %s"% (self.passenger_name,self.passenger_surname)
class Flight(models.Model):
aircraft = models.ForeignKey(Aircraft)
passengers = models.ManyToManyField(Passenger)
num_seat_available = models.IntegerField(default=50) # requires
method to calculate this
departFrom = models.CharField(max_length=50)
departTo = models.CharField(max_length=50)
departTime = models.DateTimeField(default=timezone.now())
flight_duration = models.IntegerField(default=0) # requires method
to calculate this
arrival = models.DateTimeField(default = timezone.now())
cancel_flight = models.BooleanField(default=False)
def __unicode__(self):
return "%s --> %s , %s --> %s" %
(self.departFrom,self.departTo,str(self.departTime),str(self.arrival))
Thanks
--
You received this message because you are subscribed to the Google
Groups "Django users" group.
To unsubscribe from this group and stop receiving emails from it, send
an email to django-users+unsubscr...@googlegroups.com
<mailto:django-users+unsubscr...@googlegroups.com>.
To post to this group, send email to django-users@googlegroups.com
<mailto:django-users@googlegroups.com>.
Visit this group at http://groups.google.com/group/django-users.
To view this discussion on the web visit
https://groups.google.com/d/msgid/django-users/edab5b92-756f-4c90-a26e-75cedbe7d2af%40googlegroups.com
<https://groups.google.com/d/msgid/django-users/edab5b92-756f-4c90-a26e-75cedbe7d2af%40googlegroups.com?utm_medium=email&utm_source=footer>.
For more options, visit https://groups.google.com/d/optout.
--
You received this message because you are subscribed to the Google Groups "Django
users" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to django-users+unsubscr...@googlegroups.com.
To post to this group, send email to django-users@googlegroups.com.
Visit this group at http://groups.google.com/group/django-users.
To view this discussion on the web visit
https://groups.google.com/d/msgid/django-users/53358BDF.8050806%40gmail.com.
For more options, visit https://groups.google.com/d/optout.
