models.py 文件源码

def get_context(self, request, *args, **kwargs):
        programs = Program.objects.filter(live=True).select_related('programpage').order_by("id")
        js_settings = {
            "gaTrackingID": settings.GA_TRACKING_ID,
            "host": webpack_dev_server_host(request),
            "environment": settings.ENVIRONMENT,
            "sentry_dsn": sentry.get_public_dsn(),
            "release_version": settings.VERSION
        }

        username = get_social_username(request.user)
        context = super(HomePage, self).get_context(request)

        def get_program_page(program):
            """Return a None if ProgramPage does not exist, to avoid template errors"""
            try:
                return program.programpage
            except ProgramPage.DoesNotExist:
                return

        program_pairs = [(program, get_program_page(program)) for program in programs]
        context["programs"] = program_pairs
        context["is_public"] = True
        context["has_zendesk_widget"] = False
        context["google_maps_api"] = False
        context["authenticated"] = not request.user.is_anonymous()
        context["is_staff"] = has_role(request.user, [Staff.ROLE_ID, Instructor.ROLE_ID])
        context["username"] = username
        context["js_settings_json"] = json.dumps(js_settings)
        context["title"] = self.title
        context["ga_tracking_id"] = ""
        context["coupon_code"] = get_coupon_code(request)

        return context