150 lines
4 KiB
Python
150 lines
4 KiB
Python
# -*- coding: utf-8 -*-
|
|
# vi:si:et:sw=4:sts=4:ts=4
|
|
|
|
from django.db.models import Q, Manager
|
|
|
|
from oxdjango.managers import get_operator
|
|
from oxdjango.query import QuerySet
|
|
from oxdjango.fields import DictField
|
|
|
|
|
|
keymap = {
|
|
'id': 'item__public_id',
|
|
'filename': 'path',
|
|
}
|
|
default_key = 'oshash'
|
|
|
|
def parseCondition(condition, user):
|
|
'''
|
|
'''
|
|
from item.managers import parseConditions as itemParseConditions
|
|
from itemlist.models import List
|
|
from item.models import Item
|
|
k = condition.get('key', default_key)
|
|
k = keymap.get(k, k)
|
|
if not k:
|
|
k = default_key
|
|
v = condition.get('value', '')
|
|
op = condition.get('operator')
|
|
if not op:
|
|
op = '='
|
|
if op.startswith('!'):
|
|
op = op[1:]
|
|
exclude = True
|
|
else:
|
|
exclude = False
|
|
if isinstance(v, bool):
|
|
key = k
|
|
elif k == 'url':
|
|
key = 'info' + get_operator('=', 'istr')
|
|
v = DictField.dumps({'url': v})[1:-1]
|
|
elif k == 'list':
|
|
q = Q(id=0)
|
|
l = v.split(":")
|
|
if len(l) == 1:
|
|
vqs = Volume.objects.filter(name=v, user=user)
|
|
if vqs.count() == 1:
|
|
v = vqs[0]
|
|
q = Q(files__instances__volume__id=v.id)
|
|
elif len(l) >= 2:
|
|
l = (l[0], ":".join(l[1:]))
|
|
lqs = list(List.objects.filter(name=l[1], user__username=l[0]))
|
|
if len(lqs) == 1 and lqs[0].accessible(user):
|
|
l = lqs[0]
|
|
if l.query.get('static', False) is False:
|
|
data = l.query
|
|
q = itemParseConditions(data.get('conditions', []),
|
|
data.get('operator', '&'),
|
|
user, l.user)
|
|
else:
|
|
q = Q(id__in=l.items.all())
|
|
if exclude:
|
|
q = ~q
|
|
else:
|
|
q = Q(id=0)
|
|
return Q(item__in=Item.objects.filter(q))
|
|
else:
|
|
key = k + get_operator(op, 'istr')
|
|
key = str(key)
|
|
if exclude:
|
|
q = ~Q(**{key: v})
|
|
else:
|
|
q = Q(**{key: v})
|
|
return q
|
|
|
|
def parseConditions(conditions, operator, user):
|
|
'''
|
|
conditions: [
|
|
{
|
|
value: "war"
|
|
}
|
|
{
|
|
key: "year",
|
|
value: "1970-1980,
|
|
operator: "!="
|
|
},
|
|
{
|
|
key: "country",
|
|
value: "f",
|
|
operator: "^"
|
|
}
|
|
],
|
|
operator: "&"
|
|
'''
|
|
conn = []
|
|
for condition in conditions:
|
|
if 'conditions' in condition:
|
|
q = parseConditions(condition['conditions'],
|
|
condition.get('operator', '&'), user)
|
|
if q:
|
|
conn.append(q)
|
|
pass
|
|
else:
|
|
conn.append(parseCondition(condition, user))
|
|
if conn:
|
|
q = conn[0]
|
|
for c in conn[1:]:
|
|
if operator == '|':
|
|
q = q | c
|
|
else:
|
|
q = q & c
|
|
return q
|
|
return None
|
|
|
|
|
|
class FileManager(Manager):
|
|
|
|
def get_query_set(self):
|
|
return QuerySet(self.model)
|
|
|
|
def find(self, data, user):
|
|
'''
|
|
query: {
|
|
conditions: [
|
|
{
|
|
value: "war"
|
|
}
|
|
{
|
|
key: "year",
|
|
value: "1970-1980,
|
|
operator: "!="
|
|
},
|
|
{
|
|
key: "country",
|
|
value: "f",
|
|
operator: "^"
|
|
}
|
|
],
|
|
operator: "&"
|
|
}
|
|
'''
|
|
|
|
# join query with operator
|
|
qs = self.get_query_set()
|
|
query = data.get('query', {})
|
|
conditions = parseConditions(query.get('conditions', []),
|
|
query.get('operator', '&'),
|
|
user)
|
|
if conditions:
|
|
qs = qs.filter(conditions)
|
|
return qs
|