Foreign Key Relationships
- by Yehonathan Quartey
I have two models
class Subject(models.Model):
name = models.CharField(max_length=100,choices=COURSE_CHOICES)
created = models.DateTimeField('created', auto_now_add=True)
modified = models.DateTimeField('modified', auto_now=True)
syllabus = models.FileField(upload_to='syllabus')
def __unicode__(self):
return self.name
and
class Pastquestion(models.Model):
subject=models.ForeignKey(Subject)
year =models.PositiveIntegerField()
questions = models.FileField(upload_to='pastquestions')
def __unicode__(self):
return str(self.year)
Each Subject can have one or more past questions but a past question can have only one subject. I want to get a subject, and get its related past questions of a particular year. I was thinking of fetching a subject and getting its related past question.
Currently am implementing my code such that I rather get the past question whose subject and year correspond to any specified subject like
this_subject=Subject.objects.get(name=the_subject)
thepastQ=Pastquestion.objects.get(year=2000,subject=this_subject)
I was thinking there is a better way to do this. Or is this already a better way? Please Do tell ?
