def get_region_struct(cls):
""" get City->RegionGroup->Region struct
:return:
[{'city_id': <city_id>,
'city_name': <city_name>,
'region_groups': {'region_group_id': <>,
'region_group_name': <>,
'regions': {'region_id': <>,
'region_name': <>,
'region_type': <>,
}
}
}
... ...
]
"""
city_pairs = city_base.get_city_id_name_pairs(
cls.get_user_city_ids())
city_region_group_map = rg_base.\
get_city_region_group_map(city_pairs.keys())
region_ids = [r.id for r in region_base.get_all()]
region_group_region_map = \
region_base.get_region_group_region_map(region_ids)
region_struct = []
for city_id, city_name in city_pairs.items():
region_groups = []
for r_group in city_region_group_map.get(city_id, []):
regions = []
for region in region_group_region_map.get(r_group.id, []):
regions.append({'region_id': region.id,
'region_name': region.name,
'region_type': region.type_code})
region_groups.append({'region_group_id': r_group.id,
'region_group_name': r_group.name,
'regions': regions})
region_struct.append({'city_id': city_id,
'city_name': city_name,
'region_groups': region_groups})
return region_struct
