It looks like maybe a slight change to your models and schema would make
this a bit cleaner if I'm understanding your overall schema correctly. I
would split this up into two different models with a ManyToMany
relationship in there. I am assuming you have students and then an Egitim
instance is one instance of a student taking one class, correct?
class Student(models.Model):
first_name = models.CharField(max_length=200)
surname = models.CharField(max_length=20)
email = models.EmailField(max_length=75)
courses = models.ManyToManyFIeld('Course', blank=True)
class Course(models.Model):
course_name = models.CharField(max_length=300)
Then if you need the count you can do one of these:
student = Student.objects.get(email=email_address)
student.courses.all().count()
Course.objects.filter(student__email=email_address).count()
On Sunday, July 28, 2013 8:06:28 AM UTC-4, Murat Bilal wrote:
>
> Hi all,
> I have a model like this
> class Egitim(models.Model):
> name = models.CharField(max_length=200)
> surname = models.CharField(max_length=20)
> email = models.EmailField(max_length=75)
> course_name = models.CharField(max_length=300)
> num_of_courses_taken = models.IntegerField(max_length=100)
> def __unicode__(self):
> return self.course_name
>
> class EgitimForm(ModelForm):
> class Meta:
> model=Egitim
> fields=('name','surname','email','course_name')
> I want to increment num_of_courses_taken value according to email
> addresses.For example if there are 3 aa@example .com mail is submitted in
> ModelForm.it means the user aa have taken 3 courses.
>
> Please Help
>
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