pandora/pandora/place/views.py
2012-05-27 13:52:12 +02:00

339 lines
11 KiB
Python

# -*- coding: utf-8 -*-
# vi:si:et:sw=4:sts=4:ts=4
from __future__ import division
from django.db.models import Max, Min, Count
from django.conf import settings
import ox
from ox.utils import json
from ox.django.decorators import login_required_json
from ox.django.shortcuts import render_to_json_response, get_object_or_404_json, json_response
from ox.django.api import actions
from item import utils
import models
@login_required_json
def addPlace(request):
'''
param data {
name: "",
alternativeNames: [],
geoname: "",
countryCode: '',
south: float,
west: float,
north: float,
east: float,
lat: float,
lng: float,
area: float,
type: ""
}
'''
#FIXME: check permissions
data = json.loads(request.POST['data'])
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__icontains=u'|%s|'%name).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__icontains=u'|%s|'%n).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())
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):
'''
param data {
'id': placeid,
'name': ...
'north': 0...
}
can contain any of the allowed keys for place
'''
data = json.loads(request.POST['data'])
place = get_object_or_404_json(models.Place, pk=ox.fromAZ(data['id']))
names = data.get('name', [])
if isinstance(names, basestring):
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__icontains=u'|%s|'%name).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, basestring):
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())
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):
'''
param data {
'id': placeid,
}
'''
data = json.loads(request.POST['data'])
if isinstance(data, dict):
data = data['id']
place = get_object_or_404_json(models.Place, pk=ox.fromAZ(data))
if place.editable(request.user):
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):
'''
param data {
query: {
conditions: [
{
key: 'user',
value: 'something',
operator: '='
}
]
operator: ","
},
itemsQuery: {
//see find request
},
sort: [{key: 'name', operator: '+'}],
range: [0, 100]
keys: []
}
possible query keys:
name, geoname, user
itemsQuery can be used to limit the resuts to matches in those items.
Uses the same query syntax as used in the find request.
possible keys:
name, geoname, user
return {
status: {
code: int,
text: string
},
data: {
items: [
{name:, user:, featured:, public...}
]
}
}
param data
{'query': query, 'sort': array, 'range': array}
query: query object, more on query syntax at
https://wiki.0x2620.org/wiki/pandora/QuerySyntax
sort: array of key, operator dics
[
{
key: "year",
operator: "-"
},
{
key: "director",
operator: ""
}
]
range: result range, array [from, to]
with keys, items is list of dicts with requested properties:
return {'status': {'code': int, 'text': string},
'data': {items: array}}
Positions
param data
{'query': query, 'positions': []}
query: query object, more on query syntax at
https://wiki.0x2620.org/wiki/pandora/QuerySyntax
positions: ids of places for which positions are required
'''
data = json.loads(request.POST['data'])
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].itemId])[0]
elif 'positions' in data:
ids = [i.get_id() for i in qs]
response['data']['positions'] = utils.get_positions(ids, data['positions'])
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 getPlaceNames(request):
'''
param data {
}
return {
status: {
code: int,
text: string
},
data: {
items: [
{name:, matches}
]
}
}
'''
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(getPlaceNames)