Example #1
0
    def get(self, request, format=None):
        """ Get all the courses. """
        param = {
            'offset': int(request.GET.get('offset', 0)),
            'limit': int(request.GET.get('limit', 10)),
            'timestamp': int(request.GET.get('timestamp', 0)),
            'with_category': request.GET.get('with_category', 1),
            'categories': request.GET.get('categories', '')
        }

        screen = get_screen_size(request)
        thumbnail_size = get_thumbnail_size(screen, position='list')

        categories = [each for each in param['categories'].split(',') if each]
        verified_courses_id = CourseMode.get_verified_option_courses()
        query = Course.exclude_vpc().filter(status__gte=0, course_type=0).exclude(course_id__in=verified_courses_id)
        if param['timestamp']:
            query = query.filter(
                modified__gt=datetime.utcfromtimestamp(param['timestamp']))
        if categories:
            query = query.filter(category__id__in=categories).distinct()

        total = query.count()
        courses = query[param['offset']:param['offset'] + param['limit']]
        result = {
            "courses": CourseWithCategorySerializer(thumbnail_size, courses, many=True).data if param['with_category'] else CourseSerializer(thumbnail_size, courses, many=True).data,
            "total": total,
        }
        return Response(result)
    def get(self, request, cid, format=None):
        """ Get the courses of current category. """
        param = {
            'offset': int(request.GET.get('offset', 0)),
            'limit': int(request.GET.get('limit', 10)),
            'show_staffs': int(request.GET.get('show_staffs', 0)),
        }

        screen = get_screen_size(request)
        thumbnail_size = get_thumbnail_size(screen, position='list')

        category = CourseCategory.objects.get(id=cid)
        user_agent = request.META.get('HTTP_USER_AGENT', '').lower()
        if 'androidtv' in user_agent:
            is_tv = True
        else:
            is_tv = False

        if is_tv:
            query = category.course_set.filter((~Q(status=-1)) & (Q(course_type=1)))
        else:
            query = category.course_set.filter(status__gte=0, course_type=0)

        total = query.count()
        courses = query[param['offset']:param['offset'] + param['limit']]

        if param['show_staffs']:
            courses_json = CourseSerializer(thumbnail_size, courses, many=True).data
        else:
            courses_json = CourseWithoutStaffSerializer(thumbnail_size, courses, many=True).data
        result = {
            "courses": courses_json,
            "total": total,
        }
        return Response(result)
    def get(self, request, kid, format=None):
        """ Get the courses of current knowledge map. """

        screen = get_screen_size(request)
        thumbnail_size = get_thumbnail_size(screen, position='list')
        knowledgemaptags = CourseInKnowledgeMap.objects.filter(map_id_id=kid)
        courses = [kt.course_id for kt in knowledgemaptags]
        result = {
            "courses": CourseSerializer(thumbnail_size, courses, many=True).data,
        }
        return Response(result)
Example #4
0
    def get(self, request, format=None):
        """ Get all the hot courses. """

        screen = get_screen_size(request)
        thumbnail_size = get_thumbnail_size(screen, position='list')
        homepage_courses = HomepageCourses.objects.select_related('course').filter(course__course_type=0).order_by('order')[0:8]
        courses = [hc.course for hc in homepage_courses]
        result = {
            "courses": CourseSerializer(thumbnail_size, courses, many=True).data
        }
        return Response(result)
Example #5
0
    def get(self, request, format=None):
        """ Get all the hot courses. """

        screen = get_screen_size(request)
        thumbnail_size = get_thumbnail_size(screen, position='list')
        homepage_fragments = HomepageFragmentKnowledge.objects.filter(enabled=True, is_draft=False).order_by('order')[0:8]
        fragments = [hf.fragment for hf in homepage_fragments]
        params = {
            'thumbnail_size': thumbnail_size,
        }
        result = {
            "fragments": FragmentKnowledgeSerializer(fragments, many=True, context=params).data
        }
        return Response(result)
Example #6
0
    def get(self, request):
        param = {
            'offset': int(request.GET.get('offset', 0)),
            'limit': int(request.GET.get('limit', 10)),
        }

        screen = get_screen_size(request)
        thumbnail_size = get_thumbnail_size(screen, position='list')
        user = request.user
        _followed_course = Follow.targets(user, 'course_meta.models.Course')
        followed_course = _followed_course.filter(course_type=0)
        total = followed_course.count()
        courses = followed_course[param['offset']:param['offset'] + param['limit']]
        result = {
            "courses": CourseSerializer(thumbnail_size, courses, many=True).data,
            "total": total,
        }
        return Response(result)
Example #7
0
    def get(self, request, course_id, format=None):
        """ Get course details. """
        params = {
            'without_chapters': int(request.GET.get('without_chapters', 0)),
            'without_qas': int(request.GET.get('without_qas', 0)),
            'display_recommend_courses': int(request.GET.get('display_recommend_courses', 0)),
        }

        screen = get_screen_size(request)
        thumbnail_size = get_thumbnail_size(screen, position='detail')

        try:
            course = Course.objects.get(course_id=course_id)
        except:
            return Response(status=status.HTTP_404_NOT_FOUND)

        result = CourseDetailSerializer(thumbnail_size, course, context=params).data

        if params['display_recommend_courses'] > 0:
            qset = Course.objects.filter((~Q(status=-1)) & (Q(course_type=1))).exclude(id=course.id)
            count = qset.count()
            if count > params['display_recommend_courses']:
                slice = random.random() * (count - params['display_recommend_courses'])
                r_cs = qset[slice: slice + params['display_recommend_courses']]
            else:
                r_cs = qset

            r_params = {
                'without_chapters': 1,
                'without_qas': 1,
                'display_recommend_courses': 0,
            }
            result['recommend_courses'] = []
            for course in r_cs:
                result['recommend_courses'].append(CourseDetailSerializer(thumbnail_size, course, context=r_params).data)
        else:
            result['recommend_courses'] = []

        return Response(result)
Example #8
0
    def get(self, request, format=None):
        """ Get the courses that user has enrolled, sort by enroll time. """
        param = {
            'offset': int(request.GET.get('offset', 0)),
            'limit': int(request.GET.get('limit', 10)),
        }

        screen = get_screen_size(request)
        thumbnail_size = get_thumbnail_size(screen, position='detail')
        enrollments = exclude_vpc_and_selfpaced_enrollments(request.user)
        total = len(enrollments)
        courses = []
        for e in enrollments[param['offset']:param['offset'] + param['limit']]:
            try:
                courses.append(Course.objects.get(course_id=e.course_id))
            except:
                pass
        result = {
            "courses": CourseSerializer(thumbnail_size, courses, many=True).data,
            "total": total,
        }
        return Response(result)
Example #9
0
    def get(self, request, format=None):
        """ Get all the recent courses. """
        param = {
            'offset': int(request.GET.get('offset', 0)),
            'limit': int(request.GET.get('limit', 10)),
        }

        screen = get_screen_size(request)
        thumbnail_size = get_thumbnail_size(screen, position='detail')
        local_tz = pytz_timezone(settings.TIME_ZONE)
        now = datetime.now(local_tz)
        recent_time = datetime(now.year, now.month, now.day, tzinfo=local_tz)
        recent_utc_time = recent_time.astimezone(UTC)
        verified_courses_id = CourseMode.get_verified_option_courses()
        query = Course.exclude_vpc().filter(
            status__gte=0, start__gt=recent_utc_time, course_type=0).exclude(course_id__in=verified_courses_id).order_by('start')
        total = query.count()
        courses = query[param['offset']:param['offset'] + param['limit']]
        result = {
            "courses": CourseSerializer(thumbnail_size, courses, many=True).data,
            "total": total,
        }
        return Response(result)