from django.db import models

from django.contrib.auth.models import User

class MyFileField(models.FileField):

    pass

class Member(models.Model):

    name = models.CharField(max_length=100)

    birthdate = models.DateTimeField(blank=True, null=True)

    gender = models.CharField(max_length=1, blank=True, choices=[('M','Male'), ('F', 'Female')])

    def __unicode__(self):

        return self.name

class Band(models.Model):

    name = models.CharField(max_length=100)

    members = models.ManyToManyField(Member)

    def __unicode__(self):

        return self.name

class Album(models.Model):

    band = models.ForeignKey(Band)

    name = models.CharField(max_length=100)

    cover_art = models.FileField(upload_to='albums')

    backside_art = MyFileField(upload_to='albums_back', null=True)

    def __unicode__(self):

        return self.name

class HiddenInventoryManager(models.Manager):

    def get_query_set(self):

        return super(HiddenInventoryManager, self).get_query_set().filter(hidden=False)

class Inventory(models.Model):

   barcode = models.PositiveIntegerField(unique=True)

   parent = models.ForeignKey('self', to_field='barcode', blank=True, null=True)

   name = models.CharField(blank=False, max_length=20)

   hidden = models.BooleanField(default=False)

   # see #9258

   default_manager = models.Manager()

   objects = HiddenInventoryManager()

   def __unicode__(self):

      return self.name

class Event(models.Model):

    band = models.ForeignKey(Band, limit_choices_to=models.Q(pk__gt=0))

    start_date = models.DateField(blank=True, null=True)

    start_time = models.TimeField(blank=True, null=True)

    description = models.TextField(blank=True)

    link = models.URLField(blank=True)

    min_age = models.IntegerField(blank=True, null=True)

class Car(models.Model):

    owner = models.ForeignKey(User)

    make = models.CharField(max_length=30)

    model = models.CharField(max_length=30)

    def __unicode__(self):

        return u"%s %s" % (self.make, self.model)

class CarTire(models.Model):

    """

    A single car tire. This to test that a user can only select their own cars.

    """

    car = models.ForeignKey(Car)