def generate_osm_xml()

in backend/services/mapping_service.py [0:0]

• 39 lines of code
• 10 McCabe index (conditional complexity)

    def generate_osm_xml(project_id: int, task_ids_str: str) -> str:
        """Generate xml response suitable for loading into JOSM.  A sample output file is in
        /backend/helpers/testfiles/osm-sample.xml"""
        # Note XML created with upload No to ensure it will be rejected by OSM if uploaded by mistake
        root = ET.Element(
            "osm",
            attrib=dict(version="0.6", upload="never", creator="HOT Tasking Manager"),
        )

        if task_ids_str:
            task_ids = map(int, task_ids_str.split(","))
            tasks = Task.get_tasks(project_id, task_ids)
            if not tasks or len(tasks) == 0:
                raise NotFound()
        else:
            tasks = Task.get_all_tasks(project_id)
            if not tasks or len(tasks) == 0:
                raise NotFound()

        fake_id = -1  # We use fake-ids to ensure XML will not be validated by OSM
        for task in tasks:
            task_geom = shape.to_shape(task.geometry)
            way = ET.SubElement(
                root,
                "way",
                attrib=dict(id=str((task.id * -1)), action="modify", visible="true"),
            )
            for poly in task_geom:
                for point in poly.exterior.coords:
                    ET.SubElement(
                        root,
                        "node",
                        attrib=dict(
                            action="modify",
                            visible="true",
                            id=str(fake_id),
                            lon=str(point[0]),
                            lat=str(point[1]),
                        ),
                    )
                    ET.SubElement(way, "nd", attrib=dict(ref=str(fake_id)))
                    fake_id -= 1

        xml_gpx = ET.tostring(root, encoding="utf8")
        return xml_gpx