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from django.http import HttpResponse
from django.core.exceptions import PermissionDenied
from django.contrib.auth.models import User
from django.db.models import Q
from django.utils import timezone
from postgresqleu.confreg.util import get_authenticated_conference
from postgresqleu.confreg.models import Conference
from postgresqleu.countries.models import Country
import datetime
import json
class LookupBase(object):
def __init__(self, conference=None):
self.conference = conference
@classmethod
def validate_global_access(self, request):
# User must be admin of some conference in the past 3 months (just to add some overlap)
# or at some point in the future.
if not (request.user.is_superuser or
Conference.objects.filter(Q(administrators=request.user) | Q(series__administrators=request.user),
startdate__gt=timezone.now() - datetime.timedelta(days=90)).exists()):
raise PermissionDenied("Access denied.")
@classmethod
def lookup(self, request, urlname=None):
if urlname is None:
self.validate_global_access(request)
vals = self.get_values(request.GET['query'])
else:
conference = get_authenticated_conference(request, urlname)
vals = self.get_values(request.GET['query'], conference)
return HttpResponse(json.dumps({
'values': vals,
}), content_type='application/json')
class GeneralAccountLookup(LookupBase):
@property
def url(self):
return '/events/admin/lookups/accounts/'
@property
def label_from_instance(self):
return lambda x: '{0} {1} ({2})'.format(x.first_name, x.last_name, x.username)
@classmethod
def get_values(self, query):
return [
{
'id': u.id,
'value': '{0} {1} ({2})'.format(u.first_name, u.last_name, u.username),
'email': u.email.lower(),
}
for u in User.objects.filter(
Q(username__icontains=query) | Q(first_name__icontains=query) | Q(last_name__icontains=query)
)[:30]
]
class CountryLookup(LookupBase):
@property
def url(self):
return '/events/admin/lookups/country/'
@property
def label_from_instance(self):
return lambda x: x.printable_name
@classmethod
def get_values(self, query):
return [
{
'id': c.iso,
'value': c.printable_name,
}
for c in Country.objects.filter(
Q(printable_name__icontains=query) | Q(iso__icontains=query)
)[:30]
]
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