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feat: implement batch processing for country, region, and city creation and updates in download command

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Sean Morley 2025-01-12 21:53:16 -05:00
parent 30f1eaef1c
commit 1f7d75acfc
1 changed files with 35 additions and 12 deletions
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47
backend/server/worldtravel/management/commands/download-countries.py
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@ -40,8 +40,9 @@ class Command(BaseCommand):
def add_arguments(self, parser):
parser.add_argument('--force', action='store_true', help='Force download the countries+regions+states.json file')
def handle(self, *args, **options):
def handle(self, **options):
force = options['force']
batch_size = 1000
countries_json_path = os.path.join(settings.MEDIA_ROOT, f'countries+regions+states-{COUNTRY_REGION_JSON_VERSION}.json')
if not os.path.exists(countries_json_path) or force:
res = requests.get(f'https://raw.githubusercontent.com/dr5hn/countries-states-cities-database/{COUNTRY_REGION_JSON_VERSION}/json/countries%2Bstates%2Bcities.json')
@ -112,7 +113,7 @@ class Command(BaseCommand):
countries_to_create.append(country_obj)
saveCountryFlag(country_code)
self.stdout.write(self.style.SUCCESS(f'Country {country_name} prepared'))
# self.stdout.write(self.style.SUCCESS(f'Country {country_name} prepared'))
if country['states']:
for state in country['states']:
@ -144,7 +145,7 @@ class Command(BaseCommand):
latitude=latitude
)
regions_to_create.append(region_obj)
self.stdout.write(self.style.SUCCESS(f'State {state_id} prepared'))
# self.stdout.write(self.style.SUCCESS(f'State {state_id} prepared'))
if 'cities' in state and len(state['cities']) > 0:
for city in state['cities']:
@ -176,7 +177,7 @@ class Command(BaseCommand):
latitude=latitude
)
cities_to_create.append(city_obj)
self.stdout.write(self.style.SUCCESS(f'City {city_id} prepared'))
# self.stdout.write(self.style.SUCCESS(f'City {city_id} prepared'))
else:
state_id = f"{country_code}-00"
@ -193,16 +194,38 @@ class Command(BaseCommand):
country=country_obj
)
regions_to_create.append(region_obj)
self.stdout.write(self.style.SUCCESS(f'Region {state_id} prepared for {country_name}'))
# self.stdout.write(self.style.SUCCESS(f'Region {state_id} prepared for {country_name}'))
# Process in batches
for i in range(0, len(countries_to_create), batch_size):
batch = countries_to_create[i:i + batch_size]
Country.objects.bulk_create(batch)
self.stdout.write(self.style.SUCCESS(f'Processed countries batch {i//batch_size + 1}/{(len(countries_to_create)-1)//batch_size + 1}'))
# Bulk create new countries and regions
Country.objects.bulk_create(countries_to_create)
Region.objects.bulk_create(regions_to_create)
City.objects.bulk_create(cities_to_create)
for i in range(0, len(regions_to_create), batch_size):
batch = regions_to_create[i:i + batch_size]
Region.objects.bulk_create(batch)
self.stdout.write(self.style.SUCCESS(f'Processed regions batch {i//batch_size + 1}/{(len(regions_to_create)-1)//batch_size + 1}'))
# Bulk update existing countries and regions
Country.objects.bulk_update(countries_to_update, ['name', 'subregion', 'capital'])
Region.objects.bulk_update(regions_to_update, ['name', 'country', 'longitude', 'latitude'])
for i in range(0, len(cities_to_create), batch_size):
batch = cities_to_create[i:i + batch_size]
City.objects.bulk_create(batch)
self.stdout.write(self.style.SUCCESS(f'Processed cities batch {i//batch_size + 1}/{(len(cities_to_create)-1)//batch_size + 1}'))
# Process updates in batches
for i in range(0, len(countries_to_update), batch_size):
batch = countries_to_update[i:i + batch_size]
Country.objects.bulk_update(batch, ['name', 'subregion', 'capital'])
self.stdout.write(self.style.SUCCESS(f'Updated countries batch {i//batch_size + 1}/{(len(countries_to_update)-1)//batch_size + 1}'))
for i in range(0, len(regions_to_update), batch_size):
batch = regions_to_update[i:i + batch_size]
Region.objects.bulk_update(batch, ['name', 'country', 'longitude', 'latitude'])
self.stdout.write(self.style.SUCCESS(f'Updated regions batch {i//batch_size + 1}/{(len(regions_to_update)-1)//batch_size + 1}'))
for i in range(0, len(cities_to_update), batch_size):
batch = cities_to_update[i:i + batch_size]
City.objects.bulk_update(batch, ['name', 'region', 'longitude', 'latitude'])
self.stdout.write(self.style.SUCCESS(f'Updated cities batch {i//batch_size + 1}/{(len(cities_to_update)-1)//batch_size + 1}'))
City.objects.bulk_update(cities_to_update, ['name', 'region', 'longitude', 'latitude'])
# Delete countries and regions that are no longer in the data