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#!/usr/bin/env python
import datetime
import json
import os.path
import re
import urllib
import yaml
import pytassium
import psycopg2
import psycopg2.extras
from rdfchangesets import BatchChangeSet
# Set up data access
config = yaml.load(open(os.path.abspath(os.path.join(os.path.dirname(__file__), '../conf/general.yml'))))
dataset = pytassium.Dataset('fixmystreet', config['KASABI_API_KEY'])
db = psycopg2.connect( "host='{host}' dbname='{name}' user='{user}' password='{password}'".format(
host=config['FMS_DB_HOST'],
name=config['FMS_DB_NAME'],
user=config['FMS_DB_USER'],
password=config['FMS_DB_PASS']
))
cursor = db.cursor(cursor_factory=psycopg2.extras.RealDictCursor)
report_cursor = db.cursor(cursor_factory=psycopg2.extras.RealDictCursor)
def main():
# Fetch reports that have changed recently
#response, data = dataset.select('select (max(?lastupdate) as ?max) where { ?report <http://data.kasabi.com/dataset/fixmystreet/def/lastUpdate> ?lastupdate }')
#max_lastUpdate = data[1][0]['max']
last_hour = datetime.datetime.now().replace(minute=0, second=0, microsecond=0) - datetime.timedelta(hours=1)
cursor.execute("""
SELECT id, latitude, longitude, used_map, council,
category, title, detail, (photo IS NOT NULL) as photo,
confirmed, lastupdate, whensent, state
FROM problem
WHERE state not in ('unconfirmed', 'partial')
AND date_trunc('hour', lastupdate) = %s
""", (last_hour,))
# AND lastupdate > %s
# """, (max_lastUpdate,))
for report in cursor:
changeset = FixMyStreetChangeSet(dataset)
if report['state'] == 'hidden':
# If the report has been hidden, just remove it
changeset.remove_report(report)
else:
# Canonicalise some values
report['latitude'] = round(report['latitude'], 6) # <10cm
report['longitude'] = round(report['longitude'], 6)
report['title'] = report['title'].replace('"', r'\"') # Escape double quotes
report['detail'] = report['detail'].replace('"', r'\"')
report['confirmed'] = report['confirmed'].replace(microsecond=0).isoformat() # Don't want microseconds
report['lastupdate'] = report['lastupdate'].replace(microsecond=0).isoformat()
report['council'] = sorted(re.sub('\|.*', '', report['council']).split(',')) # Remove missing councils
# Fetch updates to note state changes
states = [ { 'state': 'confirmed', 'time': report['confirmed'] } ]
report_cursor.execute("""
SELECT id, mark_fixed, mark_open, problem_state, confirmed
FROM comment
WHERE problem_id=%s AND state='confirmed'
ORDER BY created
""", (report['id'], ))
for update in report_cursor:
t = update['confirmed'].replace(microsecond=0).isoformat()
if update['problem_state']:
states.append( { 'state': update['problem_state'], 'time': t } )
elif update['mark_fixed']:
states.append( { 'state': 'fixed - user', 'time': t } )
elif update['mark_open']:
states.append( { 'state': 'confirmed', 'time': t } )
# Remove and then re-add the report
changeset.remove_report(report)
changeset.add_report(report, states)
changeset.apply()
print '{id} change applied'.format(id=report['id'])
class FixMyStreetChangeSet(object):
"""Something that hosts either or both of a BatchChangeSet and a Turtle
string for sending to Kasabi. Changes are done by removing all triples
and then readding the report."""
_changeset = None
data = ''
def __init__(self, dataset):
self.dataset = dataset
def __str__(self):
return unicode(self).encode('utf-8')
def __unicode__(self):
g = self.changeset.getGraph()
data = g.serialize(format='xml')
return "Changeset:\n" + data + "\nNew data:\n" + self.data
@property
def changeset(self):
if not self._changeset:
self._changeset = BatchChangeSet()
self._changeset.setChangeReason("Report updates")
self._changeset.setCreatorName("FixMyStreet")
return self._changeset
def apply(self):
if len(self.changeset.changesets):
response, data = self.dataset.apply_changeset(self.changeset)
if response.status in range(200, 300):
print 'Change accepted:', data
else:
print 'Error:', response.status, response.reason, data
if self.data:
response, data = self.dataset.store_data(self.data, media_type='text/turtle')
if response.status in range(200, 300):
print 'New data accepted:', data
else:
print 'Error:', response.status, response.reason, data
def remove_report(self, report):
uri = 'http://data.kasabi.com/dataset/fixmystreet/report/{id}'.format(**report)
response, data = self.dataset.select('select ?p ?o where {{ <{0}> ?p ?o }}'.format(uri))
for row in data[1]:
# XXX This throws an error
if str(row['p']) == 'http://data.kasabi.com/dataset/fixmystreet/def/lastUpdate':
continue
if re.match('http://data.kasabi.com/dataset/fixmystreet/report/\d+/status/\d+$', str(row['o'])):
uri2 = str(row['o'])
response2, data2 = self.dataset.select('select ?p ?o where {{ <{0}> ?p ?o }}'.format(uri2))
for row2 in data2[1]:
self.changeset.remove(uri2, row2['p'], row2['o'])
self.changeset.remove(uri, row['p'], row['o'])
def add_report(self, report, states):
# Work out the update states
c = 0
state_data = { 'refs': '', 'objs': '' }
for state in states:
state_data['refs'] += ' ; fixmystreet:status <http://data.kasabi.com/dataset/fixmystreet/report/{id}/status/{c}>\n'.format(id=report['id'], c=c)
obj = re.sub('[ -]', '', ' '.join(x.capitalize() for x in state['state'].split()))
if obj == 'Confirmed': obj = 'Open'
state_data['objs'] += """<http://data.kasabi.com/dataset/fixmystreet/report/{id}/status/{c}> a fixmystreet:{state}Status
; event:time <http://reference.data.gov.uk/id/gregorian-instant/{time}>
.
""".format( id=report['id'], c=c, state=obj, time=state['time'] )
# ; rdfs:label
c += 1
# Get info for the councils
council_data = { 'sentTo': '', 'areaNames': [] }
for council in report['council']:
js = json.load(urllib.urlopen('http://mapit.mysociety.org/area/{0}'.format(council)))
os_id = int(js['codes']['unit_id']) + 7000000000000000
if report['whensent']:
council_data['sentTo'] += ' ; fixmystreet:sentTo <http://data.ordnancesurvey.co.uk/id/{os_id}>\n'.format(os_id=os_id)
council_data['areaNames'].append(js['name'])
council_data.setdefault('firstCouncil', council)
council_data['areaNames'] = ' / '.join(council_data['areaNames'])
# easting/northing
self.data += '''
@prefix fixmystreet: <http://data.kasabi.com/dataset/fixmystreet/def/> .
@prefix dct: <http://purl.org/dc/terms/> .
@prefix event: <http://purl.org/NET/c4dm/event.owl#> .
@prefix geo: <http://www.w3.org/2003/01/geo/wgs84_pos#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix foaf: <http://xmlns.com/foaf/0.1/> .
@prefix georss: <http://www.georss.org/georss/> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
<http://data.kasabi.com/dataset/fixmystreet/report/{id}> a fixmystreet:Report
; fixmystreet:location <http://data.kasabi.com/dataset/fixmystreet/location/geo/point/{latitude}/{longitude}>
; dct:description """{detail}"""
; dct:title "{title}"
{photo_url}
{state_data[refs]}
{council_data[sentTo]}
; fixmystreet:category <http://data.kasabi.com/dataset/fixmystreet/category/{council_data[firstCouncil]}/{category_uri}>
; fixmystreet:lastUpdate "{lastupdate}"^^xsd:dateTime
; foaf:page <http://www.fixmystreet.com/report/{id}>
.
<http://data.kasabi.com/dataset/fixmystreet/location/geo/point/{latitude}/{longitude}> a fixmystreet:Location
; geo:lat "{latitude}"
; geo:long "{longitude}"
; georss:point "{latitude} {longitude}"
.
<http://data.kasabi.com/dataset/fixmystreet/location/geo/point/{latitude}/{longitude}>
owl:sameAs <http://rdfize.com/geo/point/{latitude}/{longitude}>
.
{state_data[objs]}
<http://data.kasabi.com/dataset/fixmystreet/category/{council_data[firstCouncil]}/{category_uri}> a skos:Concept
; skos:prefLabel "{category}"
; skos:altLabel "{category} in {council_data[areaNames]}"
.
'''.format(
photo_url = ' ; foaf:depiction <http://www.fixmystreet.com/photo/{id}.jpeg>'.format(**report) if report['photo'] else '',
state_data = state_data,
council_data = council_data,
category_uri = report['category'].lower().replace(' ', '-'),
**report
)
# ; skos:broader <http://data.kasabi.com/dataset/fixmystreet/category/street-lights>
# this category is the broadest highlevel street light category
#<http://data.kasabi.com/dataset/fixmystreet/category/street-lights> a skos:Concept
# ; skos:prefLabel "Street lights"
# .
main()
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