def _add_taiga_info_headers(self): try: project_id = int(self.request.QUERY_PARAMS.get("project", None)) project_model = apps.get_model("projects", "Project") project = get_object_or_none(project_model, id=project_id) except TypeError: project = None if project: opened_milestones = project.milestones.filter(closed=False).count() closed_milestones = project.milestones.filter(closed=True).count() self.headers["Taiga-Info-Total-Opened-Milestones"] = opened_milestones self.headers["Taiga-Info-Total-Closed-Milestones"] = closed_milestones