Apr 5
Daniel, Thank you very much for your response. I have been reading the
tutorial and practicing. This is my practicing project.
With your help, I make a couple adjustments and have it working.
Thanks again,
On Saturday, April 5, 2014 12:07:00 PM UTC-4, Daniel Roseman wrote:
>
> On Saturday, 5 April 2014 09:21:38 UTC+1, H. Pham wrote:
>>
>> I am trying to learn how to use Django.
>>
>
> Then you should read the tutorial.
>
>
>
>> I created 2 very simple models:
>>
>> models.py
>>
>> class Course(models.Model):
>> name = models.CharField(max_length=100)
>> instructor = models.CharField(max_length=100)
>>
>> student = models.ForeignKey('Student', null=True, blank=True)
>>
>
> This is wrong. This means each course can only have one student. The
> ForeignKey should be on Student, pointing to Course. Or, more likely, you
> should have a ManyToManyField, since Courses can have many students, and
> Students can have many classes.
>
>
>> def __str__(self):
>> return (self.name)
>>
>> class Student(models.Model):
>> name = models.CharField(max_length=100)
>> courses = RelatedObjectsDescriptor()
>>
>
> Is this from the genericm2m project? If so, you should say so. But there's
> no need for it here: a simple ManyToManyField is what you need.
>
>
>> def __str__(self):
>> return (self.name)
>>
>> forms.py
>>
>
>> class CourseInline(admin.TabularInline):
>> model = Course
>> form = CourseForm
>> extra = 3
>>
>> class StudentAdmin(admin.ModelAdmin):
>> form = StudentForm
>> search_fields = ('name', )
>> fields = ('name', )
>> ordering = ('name',)
>>
>> inlines = [CourseInline]
>>
>> admin.site.register(Student, StudentAdmin)
>>
>
> This stuff should be in admin.py
>
>
>>
>
>> with this setup, I can add student then add courses to the student.
>>
>> What I am trying to do is to use script to enter the known records:
>>
>> student = Student(name
>> ='student1')
>>
>> - This work
>> course = Course(name='Math101", instructor="Smith",
>> student=student) - This work, but when I view the student
>> record via admin page, the course does not show up as an inline object
>>
>>
> You've confused yourself by trying to use that genericm2m project. Stick
> to the standard classes for now.
>
> course = Course.objects.create(name="math101', instructor='Smith')
> course.students.add(student)
>
> This is all well covered in the tutorial, which you should read rather
> than relying on random blog posts.
>
> --
> DR.
>
--
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 [email protected].
To post to this group, send email to [email protected].
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/09df3180-5dfa-4495-bb33-8209ae0c8dc7%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.
