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#!/usr/bin/env python
# -*- coding: utf-8 -*-
# Copyright (C) 2025 Étienne Loks <etienne.loks_AT_peacefrogsDOTnet>
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as
# published by the Free Software Foundation, either version 3 of the
# License, or (at your option) any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
# See the file COPYING for details.
import datetime
import json
import os
import sys
from django.conf import settings
from django.core.management.base import BaseCommand
from django.contrib.contenttypes.models import ContentType
from django.db import transaction
from ishtar_common.utils import BColors, get_log_time, get_progress
from ishtar_common.models import Town, GeoVectorData, GeoDataType, GeoProviderType
town_content_type = ContentType.objects.get(app_label="ishtar_common", model="town")
town_data_type, __ = GeoDataType.objects.get_or_create(
txt_idx="town-limit", defaults={"label": "Limites commune"}
)
class Command(BaseCommand):
help = 'Import towns fixtures'
def add_arguments(self, parser):
parser.add_argument('towns_file')
parser.add_argument(
'--limit', type=str, default="", dest='limit',
help='Limit import town to town code begining with the string provided.'
'Example: --limit=35')
parser.add_argument(
'--quiet', dest='quiet', action='store_true',
help='Quiet output')
@transaction.atomic
def handle(self, *args, **options):
log_path = os.sep.join([settings.ROOT_PATH, "logs"])
if not os.path.exists(log_path):
os.mkdir(log_path, mode=0o770)
quiet = options['quiet']
self.limit = options['limit']
towns_file = options['towns_file']
with open(towns_file, "r") as t:
src = json.loads(t.read())
nb_lines = len(src)
started = datetime.datetime.now()
self.geo_updated, self.geo_created = 0, 0
self.town_created = 0
log_filename = f"load_towns-{get_log_time().replace(':', '')}.csv"
log_path = os.sep.join([log_path, log_filename])
towns, geo_datas, children = {}, {}, {}
for idx, values in enumerate(src):
sys.stdout.write(get_progress("processing", idx, nb_lines, started))
sys.stdout.flush()
fields = values["fields"]
if values["model"] == "ishtar_common.town":
if self.limit and not values["numero_insee"].startswith(self.limit):
continue
c_children = fields.pop("children")
if c_children:
children[fields["numero_insee"]] = c_children
towns[fields["numero_insee"]], created = self.update_town(
fields, geo_datas
)
if values["model"] == "ishtar_common.geovectordata":
self.update_geodata(fields, geo_datas)
# manage geo sources
for insee in geo_datas:
if insee not in towns:
sys.stdout.write(
f"\n{BColors.FAIL}geodata source : INSEE manquant {insee}{BColors.ENDC}\n"
)
else:
g = geo_datas[insee]
if g.source_id != towns[insee].pk:
g.source_id = towns[insee].pk
g.save()
nb_lines = len(children)
started = datetime.datetime.now()
self.nb_rels = 0
print()
# management childrens
for idx, insee in enumerate(children):
sys.stdout.write(get_progress("update children", idx, nb_lines, started))
sys.stdout.flush()
self.get_children(insee, towns, children)
sys.stdout.write(BColors.OKGREEN)
if self.town_created:
sys.stdout.write(f'\n* {self.town_created} town created')
if self.geo_created:
sys.stdout.write(f'\n* {self.geo_created} geo created')
if self.geo_updated:
sys.stdout.write(f'\n* {self.geo_updated} geo updated')
if self.nb_rels:
sys.stdout.write(f'\n* {self.nb_rels} relations updated')
sys.stdout.write(BColors.ENDC + "\n")
sys.stdout.flush()
def update_town(self, fields, geo_datas):
values = fields.copy()
geos = []
for geo in values.pop("geodata"):
geo_id = geo[2]
if geo_id not in geo_datas:
sys.stdout.write(f"\n{BColors.FAIL}geodata : Geo INSEE manquant {geo_id}{BColors.ENDC}\n")
else:
geos.append(geo_datas[geo_id])
main_geo = values["main_geodata"][2]
if main_geo not in geo_datas:
sys.stdout.write(f"\n{BColors.FAIL}main_geodata : Geo INSEE manquant {main_geo}{BColors.ENDC}\n")
values.pop(main_geo)
else:
values["main_geodata"] = geo_datas[main_geo]
q = Town.objects.filter(numero_insee=values["numero_insee"])
created = False
if q.count():
q.update(**values)
town = q.all()[0]
else:
created = True
self.town_created += 1
town = Town.objects.create(**values)
for geo in geos:
town.geodata.add(geo)
return town, created
def update_geodata(self, fields, geo_datas):
numero_insee = fields.pop('source')
if self.limit and not numero_insee.startswith(self.limit):
return
q = Town.objects.filter(numero_insee=numero_insee)
values = {
"provider": GeoProviderType.objects.get(txt_idx=fields["provider"]),
"comment": fields["comment"],
'multi_polygon': fields["multi_polygon"]
}
if q.count():
source_id = q.all()[0].pk
q2 = GeoVectorData.objects.filter(
source_id=source_id,
source_content_type=town_content_type,
data_type=town_data_type
)
if q2.count():
geo = q2.all()[0]
changed = False
for k in values:
if k == "multi_polygon":
if geo.multi_polygon.wkt != values[k]:
setattr(geo, k, values[k])
changed = True
elif getattr(geo, k) != values[k]:
setattr(geo, k, values[k])
changed = True
if changed:
self.geo_updated += 1
geo.save()
geo_datas[numero_insee] = geo
return
values.update({
"source_content_type": town_content_type,
"data_type": town_data_type
})
self.geo_created += 1
geo = GeoVectorData.objects.create(**values)
geo_datas[numero_insee] = geo
def get_children(self, insee, towns, children):
if insee not in towns:
sys.stdout.write(f"\n{BColors.FAIL}children : INSEE manquant {insee}{BColors.ENDC}\n")
return
town = towns[insee]
current_children = list(town.children.values_list("id", flat=True))
for child in children[insee]:
if child not in towns:
sys.stdout.write(f"\n{BColors.FAIL}children-child : INSEE manquant {insee}{BColors.ENDC}\n")
continue
if towns[child].id in current_children:
continue
self.nb_rels += 1
town.children.add(towns[child])
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