cablegates/pandora/item/managers.py

253 lines
7.5 KiB
Python
Raw Normal View History

2009-08-01 14:14:54 +00:00
# -*- coding: utf-8 -*-
# vi:si:et:sw=4:sts=4:ts=4
2009-08-16 12:23:29 +00:00
from datetime import datetime
from django.db.models import Q, Manager
2011-01-01 11:44:42 +00:00
2011-01-11 20:12:35 +00:00
from itemlist.models import List
2009-08-16 12:23:29 +00:00
import models
from ox.django.query import QuerySet
2011-01-24 13:44:38 +00:00
2010-07-14 14:35:10 +00:00
def parseCondition(condition):
'''
condition: {
value: "war"
}
or
condition: {
key: "year",
value: "1970-1980,
operator: "!="
}
...
2011-01-01 11:44:42 +00:00
'''
2010-07-14 14:35:10 +00:00
k = condition.get('key', 'all')
2010-09-23 16:01:48 +00:00
k = {'id': 'itemId'}.get(k, k)
2011-01-01 11:44:42 +00:00
if not k:
k = 'all'
2010-07-14 14:35:10 +00:00
v = condition['value']
2011-04-22 23:34:01 +00:00
op = condition.get('operator')
2011-01-01 11:44:42 +00:00
if not op:
op = ''
2010-07-14 14:35:10 +00:00
if op.startswith('!'):
op = op[1:]
exclude = True
else:
exclude = False
2011-05-29 22:07:30 +00:00
if op == '-':
q = parseCondition({'key': k, 'value': v[0], 'operator': '>='}) \
& parseCondition({'key': k, 'value': v[1], 'operator': '<'})
if exclude:
return ~q
else:
return q
2011-01-14 14:32:48 +00:00
key_type = models.site_config()['keys'].get(k, {'type':'string'}).get('type')
if isinstance(key_type, list):
key_type = key_type[0]
2011-01-03 08:45:31 +00:00
key_type = {
'title': 'string',
2011-01-03 16:02:33 +00:00
'person': 'string',
'text': 'string',
'year': 'string',
2011-01-05 13:06:09 +00:00
'length': 'string',
2011-01-11 20:12:35 +00:00
'list': 'list'
}.get(key_type, key_type)
2011-01-11 20:12:35 +00:00
if k == 'list':
key_type = 'list'
if key_type == "string":
2010-07-15 15:55:10 +00:00
in_find=True
2010-11-06 16:14:00 +00:00
value_key = 'find__value'
if k in models.Item.facet_keys:
in_find = False
2011-05-29 22:07:30 +00:00
if op == '=' or op == '^$':
2010-09-23 16:01:48 +00:00
v = models.Item.objects.filter(facets__key=k, facets__value=v)
elif op == '^':
v = models.Item.objects.filter(facets__key=k, facets__value__istartswith=v)
elif op == '$':
v = models.Item.objects.filter(facets__key=k, facets__value__iendswith=v)
2011-01-04 10:37:45 +00:00
else:
v = models.Item.objects.filter(facets__key=k, facets__value__icontains=v)
k = 'id__in'
2011-05-29 22:07:30 +00:00
elif op == '=' or op == '^$':
value_key = 'find__value__iexact'
2010-07-14 14:35:10 +00:00
elif op == '^':
v = v[1:]
2010-11-06 16:14:00 +00:00
value_key = 'find__value__istartswith'
2010-07-14 14:35:10 +00:00
elif op == '$':
v = v[:-1]
2010-11-06 16:14:00 +00:00
value_key = 'find__value__iendswith'
else: # default
2010-11-06 16:14:00 +00:00
value_key = 'find__value__icontains'
2010-07-14 14:35:10 +00:00
k = str(k)
if exclude:
if k == 'all':
q = ~Q(**{value_key: v})
elif in_find and not k.startswith('itemId'):
2011-01-01 11:44:42 +00:00
q = ~Q(**{'find__key': k, value_key: v})
2010-11-06 16:14:00 +00:00
else:
2011-01-01 11:44:42 +00:00
q = ~Q(**{k: v})
2010-07-14 14:35:10 +00:00
else:
if k == 'all':
q = Q(**{value_key: v})
elif in_find and not k.startswith('itemId'):
2011-01-01 11:44:42 +00:00
q = Q(**{'find__key': k, value_key: v})
2010-11-06 16:14:00 +00:00
else:
2011-01-01 11:44:42 +00:00
q = Q(**{k: v})
2010-11-06 16:14:00 +00:00
return q
2011-01-11 20:12:35 +00:00
elif key_type == 'list':
2011-01-13 15:32:14 +00:00
q = Q(itemId=False)
2011-01-16 00:57:44 +00:00
l = v.split("/")
2011-01-13 15:32:14 +00:00
if len(l) == 2:
2011-01-14 06:24:40 +00:00
lqs = list(List.objects.filter(name=l[1], user__username=l[0]))
if len(lqs) == 1:
2011-01-13 19:40:50 +00:00
l = lqs[0]
if l.query.get('static', False) == False:
data = l.query
q = parseConditions(data.get('conditions', []),
2011-01-13 15:32:14 +00:00
data.get('operator', '&'))
else:
2011-01-13 19:40:50 +00:00
q = Q(id__in=l.items.all())
2011-01-11 20:12:35 +00:00
return q
2010-07-14 14:35:10 +00:00
else: #number or date
2011-01-01 11:44:42 +00:00
2010-07-14 14:35:10 +00:00
def parseDate(d):
while len(d) < 3:
d.append(1)
return datetime(*[int(i) for i in d])
2011-05-29 22:07:30 +00:00
if key_type == "date":
v = parseDate(v.split('.'))
if op == '=' or op == '^$':
vk = 'value__exact'
elif op == '>':
vk = 'value__gt'
elif op == '>=':
vk = 'value__gte'
elif op == '<':
vk = 'value__lt'
elif op == '<=':
vk = 'value__lte'
elif op == '':
vk = 'value__exact'
2010-12-06 23:31:41 +00:00
2011-05-29 22:07:30 +00:00
vk = 'find__%s' % vk
vk = str(vk)
2010-07-14 14:35:10 +00:00
2011-05-29 22:07:30 +00:00
if exclude: #!1960
return ~Q(**{'find__key': k, vk: v})
else: #1960
return Q(**{'find__key': k, vk: v})
2011-01-01 11:44:42 +00:00
2010-07-14 14:35:10 +00:00
def parseConditions(conditions, operator):
'''
conditions: [
{
value: "war"
}
{
key: "year",
value: "1970-1980,
operator: "!="
},
{
key: "country",
value: "f",
operator: "^"
}
],
operator: "&"
2011-01-01 11:44:42 +00:00
'''
2010-07-14 14:35:10 +00:00
conn = []
for condition in conditions:
if 'conditions' in condition:
q = parseConditions(condition['conditions'],
condition.get('operator', '&'))
2011-01-01 11:44:42 +00:00
if q:
conn.append(q)
2010-07-14 14:35:10 +00:00
pass
else:
2011-01-01 11:44:42 +00:00
if condition.get('value', '') != '' or \
condition.get('operator', '') == '=':
2010-07-15 12:12:04 +00:00
conn.append(parseCondition(condition))
2010-07-14 14:35:10 +00:00
if conn:
q = conn[0]
for c in conn[1:]:
if operator == '|':
q = q | c
else:
q = q & c
return q
2011-01-14 14:45:01 +00:00
return Q()
2010-07-14 14:35:10 +00:00
2011-01-01 11:44:42 +00:00
2010-09-23 16:01:48 +00:00
class ItemManager(Manager):
2011-01-01 11:44:42 +00:00
2009-08-01 14:14:54 +00:00
def get_query_set(self):
#return super(ItemManager, self).get_query_set()
return QuerySet(self.model)
2009-08-01 14:14:54 +00:00
2010-02-22 09:25:29 +00:00
def filter_list(self, qs, l, user):
if l != "all":
l = l.split(":")
only_public = True
if not user.is_anonymous():
2011-01-01 11:44:42 +00:00
if len(l) == 1:
l = [user.username] + l
if user.username == l[0]:
2010-02-22 09:25:29 +00:00
only_public = False
if len(l) == 2:
lqs = models.List.objects.filter(name=l[1], user__username=l[0])
if only_public:
2011-01-11 20:12:35 +00:00
lqs = lqs.filter(Q(status='public')|Q(status='featured'))
2010-02-22 09:25:29 +00:00
if lqs.count() == 1:
if lqs[0].query:
data = lqs[0].query
conditions = parseConditions(data['query']['conditions'],
data['query'].get('operator', '&'))
2011-01-14 14:45:01 +00:00
qs = qs.filter(conditions)
else:
qs = qs.filter(id__in=lqs[0].items.all())
2010-02-22 09:25:29 +00:00
return qs
2010-07-07 22:11:34 +00:00
def find(self, data, user):
2010-02-22 09:25:29 +00:00
'''
query: {
conditions: [
{
value: "war"
2010-02-22 09:25:29 +00:00
}
{
key: "year",
value: "1970-1980,
operator: "!="
},
{
key: "country",
value: "f",
operator: "^"
}
],
2010-07-14 14:35:10 +00:00
operator: "&"
2010-02-22 09:25:29 +00:00
}
2011-01-01 11:44:42 +00:00
'''
2010-02-22 09:25:29 +00:00
#join query with operator
qs = self.get_query_set()
2010-09-23 16:01:48 +00:00
#only include items that have hard metadata
2010-02-22 09:25:29 +00:00
qs = qs.filter(available=True)
2011-01-13 19:40:50 +00:00
conditions = parseConditions(data['query'].get('conditions', []),
2010-07-14 14:35:10 +00:00
data['query'].get('operator', '&'))
qs = qs.filter(conditions).distinct()
2011-01-21 09:31:49 +00:00
#anonymous can only see public items
if user.is_anonymous():
qs = qs.filter(public=True)
#users can see public items, there own items and items of there groups
elif not user.is_staff:
qs = qs.filter(Q(public=True)|Q(user=user)|Q(groups__in=user.groups.all()))
#admins can see all available items
2010-02-22 09:25:29 +00:00
return qs