Hi everyone. hi have these models:
#models.py
class Subject(models.Model):
name = models.CharField("Name",max_length=50, blank=True)
...
...
class Activity(models.Model):
label = models.CharField("Act. name",max_length=150)
price = models.DecimalField("price", max_digits=10,
decimal_places=2,default=0)
count = models.IntegerField("Count", default=0)
def __unicode__(self):
return u"%s" % (self.label)
class Meta:
verbose_name_plural = "Activities"
class Invoice(models.Model):
subject = models.ForeignKey(Subject)
date = models.DateField(default=date.today())
activities = models.ManyToManyField(Activity)
....
....
while creating a new Invoice instance on admin, i can select the many to
many fields 'activities', but i'd like to have an additional counter (eg.
an IntegerField) as an Invoice field to count and save the quantity of each
activity added to my Invoice instance. Is this possible?
I mean: for each 'Activity' added to an Invoice instance, i need to count
the amount of that activity.
thanks,
LuKe
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