pandora/pandora/place/views.py
j 1468ddbecb towards supporting python 2 and 3
- use absolute_imports
- make use of six.moves
- use exec instead of execfile
- use list(dict) instead if dict.keys()
2016-08-25 18:34:36 +02:00

297 lines
11 KiB
Python

# -*- coding: utf-8 -*-
# vi:si:et:sw=4:sts=4:ts=4
from __future__ import division, print_function, absolute_import
from django.db.models import Max, Min, Count
from django.conf import settings
from six import string_types
import ox
from ox.utils import json
from oxdjango.decorators import login_required_json
from oxdjango.shortcuts import render_to_json_response, get_object_or_404_json, json_response
from oxdjango.api import actions
from item import utils
from changelog.models import add_changelog
from . import models
@login_required_json
def addPlace(request, data):
'''
Adds a new place to the map
takes {
name: string, // place name
alternativeNames: [string], // list of alternative names
geoname: string, // full geoname (like '23 Main St, Foo, Switzerland')
countryCode: string, // two-letter country code (like 'ch')
south: float, // southern edge of the bounding box in degrees
west: float, // western edge of the bounding box in degrees
north: float, // northern edge of the bounding box in degrees
east: float, // eastern edge of the bounding box in degrees
type: string // place type
}
returns {
id: string
}
notes: Possible types are 'country', 'region', 'city', 'borough', 'street',
'building' and 'feature'.
see: editPlace, findPlaces, removePlace
'''
#FIXME: check permissions
exists = False
existing_names = []
existing_geoname = ''
name = data.pop('name')
if name == '':
_exists = True
name = 'Untitled'
n = 0
while _exists:
_exists = models.Place.objects.filter(defined=True,
name_find__contains=u'|%s|' % name.lower()).count() > 0
if _exists:
name = 'Untitled [%s]' %n
n += 1
names = [name] + data.get('alternativeNames', [])
data['alternativeNames'] = [ox.escape_html(n)
for n in data.get('alternativeNames', [])]
name = ox.escape_html(name)
for n in names:
n = ox.decode_html(name)
if models.Place.objects.filter(defined=True,
name_find__contains=u'|%s|' % n.lower()).count() != 0:
exists = True
existing_names.append(n)
'''
if 'geoname' in data:
if models.Place.objects.filter(defined=True,
geoname=data['geoname']).count() > 0:
exists = True
existing_geoname = data['geoname']
'''
if not exists:
models.Place.objects.filter(defined=False, name__in=names).delete()
place = models.Place()
place.user = request.user
place.name = name
place.alternativeNames = tuple(data.pop('alternativeNames', []))
for key in data:
value = data[key]
if isinstance(value, list):
value = tuple(value)
setattr(place, key, value)
place.matches = 0
place.save()
place.update_matches()
response = json_response(place.json())
# add name/alternativeNames again for changelog
data['name'] = place.name
data['alternativeNames'] = place.alternativeNames
add_changelog(request, data, place.get_id())
else:
response = json_response(status=409,
text='%s exists'%(existing_names and 'Name' or 'Geoname'))
response['data']['names'] = existing_names
if existing_geoname:
response['data']['geoname'] = existing_geoname
return render_to_json_response(response)
actions.register(addPlace, cache=False)
@login_required_json
def editPlace(request, data):
'''
Edits a place
takes {
id: string, // place id
name: string, // place name
... // more place properties
}
returns {
names: [] // list of names, in case of collision with existing data
}
see: addPlace, findPlaces, removePlace
'''
place = get_object_or_404_json(models.Place, pk=ox.fromAZ(data['id']))
names = data.get('name', [])
if isinstance(names, string_types):
names = [names]
names = [ox.escape_html(n) for n in names]
alternative_names = [ox.escape_html(n) for n in data.get('alternativeNames', [])]
alternative_names = filter(lambda n: n.strip(), alternative_names)
if place.editable(request.user):
conflict = False
conflict_names = []
conflict_geoname = ''
if alternative_names:
data['alternativeNames'] = alternative_names
for name in names + alternative_names:
name = ox.decode_html(name)
if models.Place.objects.filter(defined=True,
name_find__contains=u'|%s|' % name.lower()).exclude(id=place.id).count() != 0:
conflict = True
conflict_names.append(name)
'''
if 'geoname' in data:
if models.Place.objects.filter(defined=True,
geoname=data['geoname']).exclude(id=place.id).count() != 0:
conflict = True
conflict_geoname = data['geoname']
'''
if not conflict:
models.Place.objects.filter(defined=False, name__in=names+alternative_names).delete()
for key in data:
if key != 'id':
value = data[key]
if isinstance(value, string_types):
value = ox.escape_html(value)
if isinstance(value, list):
value = tuple(value)
setattr(place, key, value)
place.save()
if 'name' in data or 'alternativeNames' in data:
place.update_matches()
response = json_response(place.json())
add_changelog(request, data)
else:
response = json_response(status=409,
text='%s exists'%(conflict_names and 'Name' or 'Geoname'))
response['data']['names'] = conflict_names
if conflict_geoname:
response['data']['geoname'] = conflict_geoname
else:
response = json_response(status=403, text='permission denied')
return render_to_json_response(response)
actions.register(editPlace, cache=False)
@login_required_json
def removePlace(request, data):
'''
Removes a place from the map
takes {
id: string // place id
}
returns {}
see: addPlace, editPlace, findPlaces
'''
place = get_object_or_404_json(models.Place, pk=ox.fromAZ(data['id']))
if place.editable(request.user):
add_changelog(request, data)
place.delete()
response = json_response(status=200, text='deleted')
else:
response = json_response(status=403, text='permission denied')
return render_to_json_response(response)
actions.register(removePlace, cache=False)
def parse_query(data, user):
query = {}
query['range'] = [0, 100]
query['sort'] = [{'key':'name', 'operator':'+'}]
for key in ('keys', 'group', 'list', 'range', 'sort', 'query'):
if key in data:
query[key] = data[key]
query['qs'] = models.Place.objects.find(query, user)
if 'itemsQuery' in data:
item_query = models.Item.objects.find({'query': data['itemsQuery']}, user)
query['qs'] = query['qs'].filter(items__in=item_query)
return query
def order_query(qs, sort):
order_by = []
for e in sort:
operator = e['operator']
if operator != '-':
operator = ''
key = {
'name': 'name_sort',
'geoname': 'geoname_sort',
}.get(e['key'], e['key'])
order = '%s%s' % (operator, key)
order_by.append(order)
if order_by:
qs = qs.order_by(*order_by, nulls_last=True)
return qs
def findPlaces(request, data):
'''
Finds places for a given query
takes {
query: object, // query object to find places, see `find`
itemsQuery: object // query object to limit results to items, see `find`
sort: [object], // list of sort objects, see `find`
range: [int, int], // range of results to return
keys: [string] // list of properties to return
}
returns {
items: [object] // list of place objects
}
notes: Possible query keys are 'geoname', 'name' and 'user'. Possible
itemsQuery keys are all item keys, as defined in the config.
see: addPlace, editPlace, find, removePlace
'''
response = json_response()
query = parse_query(data, request.user)
qs = order_query(query['qs'], query['sort'])
qs = qs.distinct()
if 'keys' in data:
qs = qs.select_related('user__profile')
qs = qs[query['range'][0]:query['range'][1]]
response['data']['items'] = [p.json(data['keys'], request.user) for p in qs]
elif 'position' in query:
ids = [i.get_id() for i in qs]
data['conditions'] = data['conditions'] + {
'value': data['position'],
'key': query['sort'][0]['key'],
'operator': '^'
}
query = parse_query(data, request.user)
qs = order_query(query['qs'], query['sort'])
if qs.count() > 0:
response['data']['position'] = utils.get_positions(ids, [qs[0].public_id])[0]
elif 'positions' in data:
ids = list(qs.values_list('id', flat=True))
response['data']['positions'] = utils.get_positions(ids, data['positions'], decode_id=True)
else:
response['data']['items'] = qs.count()
response['data']['area'] = qs.aggregate(
south=Min('south'),
west=Min('west'),
north=Max('north'),
east=Max('east'),
)
return render_to_json_response(response)
actions.register(findPlaces)
def getPlaces(request, data):
'''
Gets place names and matches
takes {}
returns {
items: [
{
name: string, // place name
matches: int // number of matches in annotations
},
... // more places
]
}
see: getEvents
'''
response = json_response({})
layers = [l['id'] for l in filter(lambda l: l['type'] == 'place',
settings.CONFIG['layers'])]
items = models.Annotation.objects.filter(layer__in=layers,
places__id=None).order_by('value')
items = items.values('value').annotate(Count('value'))
response['data']['items'] = [{
'name': i['value'],
'matches': i['value__count']
} for i in items]
return render_to_json_response(response)
actions.register(getPlaces)