Import OpenData roadworks files into the database

Currently importing from:
* Lille
* Lyon
* Montpellier
* Nancy
* Paris
* Rennes
* Seine-Saint-Denis
* Sicoval (south of Toulouse)
* Toulouse
* Versailles

Partially fixes #1.
This commit is contained in:
Lucas Verney 2018-09-11 23:12:39 +02:00
parent a7792f5dbb
commit e5838996ea
2 changed files with 377 additions and 6 deletions

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@ -126,6 +126,19 @@ You can use the `wsgi.py` script at the root of the git repository to serve
the server side part. You can find some `uwsgi` and `nginx` base config files
under the `support` folder.
#### Importing OpenData
A few OpenData files can be imported in Cycl'Assist, to import roadworks for
instance. All the useful scripts to import OpenData are in the
`scripts/opendata` folder. You can set up a daily cron task to automatically
run the import of roadworks every day.
#### Updating
Database migrations are in the `scripts/migrations` folder, labelled by
versions. You should run them in order from your current versions to the
latest one when you upgrade.
## Contributing
@ -143,12 +156,6 @@ python -m server
to spawn the server-side part, listening on `localhost:8081`.
### Updating
Database migrations are in the `scripts/migrations` folder, labelled by
versions. You should run them in order from your current versions to the
latest one when you upgrade.
### Useful scripts for dev
You can run `scripts/gps_to_gpx.py` on your GPX trace to create a

364
scripts/opendata/works.py Executable file
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@ -0,0 +1,364 @@
#!/usr/bin/env python
"""
Import French opendata about works on roads.
"""
import logging
import os
import sys
SCRIPT_DIRECTORY = os.path.dirname(os.path.realpath(__file__))
sys.path.append(os.path.abspath(os.path.join(SCRIPT_DIRECTORY, '..', '..')))
import arrow
import pyproj
import requests
from functools import partial
from shapely.geometry import Point, shape
from shapely.ops import transform
from server.models import db, Report
level = logging.WARN
if 'DEBUG' in os.environ:
level = logging.info
logging.basicConfig(level=level)
def preprocess_lille(data):
for item in data:
try:
fields = item['fields']
# Homogeneize start date spelling
fields['date_debut'] = fields['date_demarrage']
# Homogeneize geo shape
fields['geo_shape'] = fields['geometry']
except KeyError as exc:
logging.warning('Invalid item in Lille data: %s.', exc)
continue
return data
def preprocess_lyon(data):
out = []
for item in data['features']:
try:
new_item = {
'fields': item['properties'],
'geometry': item['geometry'],
'recordid': item['properties']['identifiant']
}
fields = new_item['fields']
# Homogeneize start date and end date spelling
fields['date_debut'] = fields['debutchantier']
fields['date_fin'] = fields['finchantier']
# Homogeneize geo shape
fields['geo_shape'] = item['geometry']
out.append(new_item)
except KeyError as exc:
logging.warning('Invalid item in Lyon data: %s.', exc)
continue
return out
def preprocess_montpellier(data):
out = []
for item in data['features']:
try:
new_item = {
'fields': item['properties'],
'geometry': item['geometry'],
'recordid': item['properties']['numero']
}
fields = new_item['fields']
# Homogeneize start date and end date spelling
fields['date_debut'] = fields['datedebut']
fields['date_fin'] = fields['datefin']
# Homogeneize geo shape
fields['geo_shape'] = item['geometry']
out.append(new_item)
except KeyError as exc:
logging.warning('Invalid item in Montpellier data: %s.', exc)
continue
return out
def preprocess_nancy(data):
out = []
for item in data['features']:
try:
geometry = {
'type': 'Point',
'coordinates': [
item['geometry']['x'],
item['geometry']['y']
]
}
new_item = {
'fields': item['attributes'],
'geometry': geometry,
'recordid': item['attributes']['OBJECTID']
}
fields = new_item['fields']
# Homogeneize start and end date spelling
fields['date_debut'] = arrow.get(
float(fields['DATE_DEBUT']) / 1000
).isoformat()
fields['date_fin'] = arrow.get(
float(fields['DATE_FIN']) / 1000
).isoformat()
# Homogeneize geo shape
fields['geo_shape'] = geometry
out.append(new_item)
except KeyError as exc:
logging.warning('Invalid item in Nancy data: %s.', exc)
continue
return out
def preprocess_rennes(data):
out = []
for item in data['features']:
try:
new_item = {
'fields': item['properties'],
'geometry': item['geometry'],
'recordid': item['properties']['id']
}
fields = new_item['fields']
# Homogeneize start date spelling
fields['date_debut'] = fields['date_deb']
# Homogeneize geo shape
fields['geo_shape'] = item['geometry']
out.append(new_item)
except KeyError as exc:
logging.warning('Invalid item in Rennes data: %s.', exc)
continue
return out
def preprocess_seine_saint_denis(data):
out = []
for item in data['features']:
try:
new_item = {
'fields': item['properties'],
'geometry': item['geometry'],
'recordid': item['properties']['id']
}
fields = new_item['fields']
# Homogeneize geo shape
fields['geo_shape'] = item['geometry']
out.append(new_item)
except KeyError as exc:
logging.warning('Invalid item in Seine-Saint-Denis data: %s.', exc)
continue
return out
def preprocess_sicoval(data):
for item in data:
fields = item['fields']
try:
# Homogeneize start date and end date spelling
fields['date_debut'] = fields['startdate']
fields['date_fin'] = fields['enddate']
# Homogeneize geo shape
fields['geo_shape'] = fields['geoshape2']
except KeyError as exc:
logging.warning('Invalid item in Sicoval data: %s.', exc)
continue
return data
def preprocess_toulouse(data):
for item in data:
try:
fields = item['fields']
# Homogeneize start date and end date spelling
fields['date_debut'] = fields['datedebut']
fields['date_fin'] = fields['datefin']
except KeyError as exc:
logging.warning('Invalid item in Toulouse data: %s.', exc)
continue
return data
def preprocess_versailles(data):
out = []
for item in data['features']:
try:
new_item = {
'fields': item['properties'],
'geometry': item['geometry'],
'recordid': item['properties']['OBJECTID']
}
fields = new_item['fields']
# Homogeneize start date and end date spelling
fields['date_debut'] = fields['STARTDATE']
fields['date_fin'] = fields['ENDDATE']
# Homogeneize geo shape
fields['geo_shape'] = item['geometry']
out.append(new_item)
except KeyError as exc:
logging.warning('Invalid item in Versailles data: %s.', exc)
continue
return out
MIN_DISTANCE_REPORT_DETAILS = 40 # Distance in meters, same as in constants.js
OPENDATA_URLS = {
# Work in Lille
"lille": {
"preprocess": preprocess_lille,
"url": "https://opendata.lillemetropole.fr/explore/dataset/troncons-de-voirie-impactes-par-des-travaux-en-temps-reel/download/?format=json&timezone=Europe/Berlin"
},
# Work in Lyon
"lyon": {
"preprocess": preprocess_lyon,
"url": "https://download.data.grandlyon.com/wfs/grandlyon?SERVICE=WFS&VERSION=2.0.0&outputformat=GEOJSON&maxfeatures=30&request=GetFeature&typename=pvo_patrimoine_voirie.pvochantierperturbant&SRSNAME=urn:ogc:def:crs:EPSG::4171",
},
# Work in Montpellier
"montpellier": {
"preprocess": preprocess_montpellier,
"url": "http://data.montpellier3m.fr/sites/default/files/ressources/MMM_MMM_Chantiers.json"
},
# Work in Nancy
"nancy": {
"preprocess": preprocess_nancy,
"url": "https://geoservices.grand-nancy.org/arcgis/rest/services/public/VOIRIE_Info_Travaux_Niveau/MapServer/0/query?where=1%3D1&text=&objectIds=&time=&geometry=&geometryType=esriGeometryEnvelope&inSR=&spatialRel=esriSpatialRelIntersects&relationParam=&outFields=*&returnGeometry=true&maxAllowableOffset=&geometryPrecision=&outSR=4326&returnIdsOnly=false&returnCountOnly=false&orderByFields=&groupByFieldsForStatistics=&outStatistics=&returnZ=false&returnM=false&gdbVersion=&returnDistinctValues=false&f=pjson"
},
# Work in Paris
"paris": {
"preprocess": None,
"url": "https://opendata.paris.fr/explore/dataset/chantiers-perturbants/download/?format=json&timezone=Europe/Berlin",
},
# Work in Rennes
"rennes": {
"preprocess": preprocess_rennes,
"url": "http://travaux.data.rennesmetropole.fr/api/roadworks?epsg=4326"
},
# Work in Seine-Saint-Denis
"seine-saint-denis": {
"preprocess": preprocess_seine_saint_denis,
"url": "https://geo.data.gouv.fr/api/geogw/services/5779810963f06a3a8e81541b/feature-types/C1296/download?format=GeoJSON&projection=WGS84"
},
# Work in Sicoval (South of Toulouse)
"sicoval": {
"preprocess": preprocess_sicoval,
"url": "https://data.opendatasoft.com/explore/dataset/travauxincidents@sicoval-haute-garonne/download/?format=json&timezone=Europe/Berlin"
},
# Work in Toulouse
"toulouse": {
"preprocess": preprocess_toulouse,
"url": "https://data.toulouse-metropole.fr/explore/dataset/chantiers-en-cours/download/?format=json&timezone=Europe/Berlin",
},
# Work in Versailles
"versailles": {
"preprocess": preprocess_versailles,
"url": "https://www.data.gouv.fr/en/datasets/r/16f90f14-7896-4463-bc35-9809b55c2c1b"
},
}
REPORT_TYPE = 'interrupt'
# Projection from WGS84 (GPS) to Lambert93 (for easy buffering of polygons)
project = partial(
pyproj.transform,
pyproj.Proj(init='epsg:4326'), # source coordinates system
pyproj.Proj(init='epsg:2154') # destination coordinates system
)
def process_opendata(name, data, report_type=REPORT_TYPE):
# Coordinates of current reports in db, as shapely Points in Lambert93
current_reports_points = []
for report in Report.select().where(Report.type == REPORT_TYPE):
current_reports_points.append(
transform(project, Point(report.lng, report.lat))
)
for item in data:
try:
fields = item['fields']
geometry = shape(item['geometry'])
position = geometry.centroid # Report position
# Check that the work is currently being done
now = arrow.now('Europe/Paris')
start_date = arrow.get(fields['date_debut'])
end_date = arrow.get(fields['date_fin'])
if not (start_date < now < end_date):
logging.info(
'Ignoring record %s, work not currently in progress.',
item['recordid']
)
continue
# Check if this precise position is already in the database
if transform(project, position) in current_reports_points:
logging.info(
('Ignoring record %s, a similar report is already in '
'the database.'),
item['recordid']
)
continue
# Check no similar reports is nearby
if 'geo_shape' in fields:
geo_shape = shape(fields['geo_shape'])
else:
geo_shape = geometry
geo_shape = transform(project, geo_shape)
overlap_area = geo_shape.buffer(MIN_DISTANCE_REPORT_DETAILS)
is_already_inserted = False
for report_point in current_reports_points:
if report_point.within(geo_shape):
# A similar report is already there
is_already_inserted = True
logging.info(
('Ignoring record %s, a similar report is already in '
'the database.'),
item['recordid']
)
break
if is_already_inserted:
# Skip this report if a similar one is nearby
continue
# Get the position of the center of the item
lng, lat = position.x, position.y
# Compute expiration datetime
expiration_datetime = end_date.replace(microsecond=0).naive
# Add the report to the db
logging.info('Adding record %s to the database.', item['recordid'])
Report.create(
type=report_type,
expiration_datetime=expiration_datetime,
lat=lat,
lng=lng
)
except KeyError as exc:
logging.warning(
'Invalid record %s in %s, missing key: %s',
item.get('recordid', '?'),
name,
exc
)
if __name__ == '__main__':
db.connect()
for name, item in OPENDATA_URLS.items():
logging.info('Processing opendata from %s', name)
try:
r = requests.get(item['url'])
data = r.json()
except (requests.RequestException, ValueError) as exc:
logging.warning('Error while fetching data for %s: %s.',
name, exc)
continue
if item['preprocess']:
data = item['preprocess'](data)
process_opendata(name, data)