Django REST API

Question

I'm using Django's rest framework and currently set up I have

a url /api/course/

which shows a list of courses that are already in the database. Courses have a Lecture foreign key and I want to make it so that you can access each course's lectures.

Currently I've set it up so that /api/lectures takes you to all the lectures.

router.register(r'course', views.CourseViewSet)
router.register(r'lecture', views.LectureViewSet)

However, I'm not sure how to set it up so that when you look at course Math, you only get Math lectures..

Thanks!

Edit: My models:

class Lecture(models.Model):
    title = models.CharField(max_length=128, unique=True, null=True)
    recordings = models.ForeignKey(Recording, null=True)
    keywords = models.ForeignKey(Keyword, null=True)

    def __str__(self):
        return self.title

class Course(models.Model):
    title = models.CharField(max_length=128, unique=True)
    lecturer = models.CharField(max_length=128)
    lectures = models.ForeignKey(Lecture, null=True)

    def __str__(self):
        return self.title

Answer 1

So here is the answer; You can use detail route for such situations; http://www.django-rest-framework.org/api-guide/routers/ go through DRF routing documentation;

class CourseViewSet(ModelViewSet):

    @detail_route(methods=['get'])
    def lectures(self, request, pk=None):
        # code to get all lectures of your current course
        # pk will be course id(ex: id of Maths course)
        data = {} # serialize the data
        return Response(data)

so your url will be like;

/courses/id/lectures