more moving around
This commit is contained in:
j
parent
75f6e3b2dc
commit
bdb0365fb1
36 changed files with 200 additions and 120 deletions
216
pandora/item/managers.py
Normal file
216
pandora/item/managers.py
Normal file
|
|
@ -0,0 +1,216 @@
|
|||
# -*- coding: utf-8 -*-
|
||||
# vi:si:et:sw=4:sts=4:ts=4
|
||||
import re
|
||||
from datetime import datetime
|
||||
from urllib2 import unquote
|
||||
import json
|
||||
|
||||
from django.contrib.auth.models import User
|
||||
from django.core.exceptions import ObjectDoesNotExist
|
||||
from django.db.models import Q, Manager
|
||||
|
||||
import models
|
||||
|
||||
|
||||
def keyType(key):
|
||||
if key in ('released', ):
|
||||
return "date"
|
||||
if key in ('year', 'cast.length'):
|
||||
return "int"
|
||||
if key in ('rating', 'votes'):
|
||||
return "float"
|
||||
return "string"
|
||||
|
||||
def parseCondition(condition):
|
||||
'''
|
||||
condition: {
|
||||
value: "war"
|
||||
}
|
||||
or
|
||||
condition: {
|
||||
key: "year",
|
||||
value: "1970-1980,
|
||||
operator: "!="
|
||||
}
|
||||
...
|
||||
'''
|
||||
k = condition.get('key', 'all')
|
||||
k = {'id': 'itemId'}.get(k, k)
|
||||
if not k: k = 'all'
|
||||
v = condition['value']
|
||||
op = condition.get('operator', None)
|
||||
if not op: op = '~'
|
||||
if op.startswith('!'):
|
||||
op = op[1:]
|
||||
exclude = True
|
||||
else:
|
||||
exclude = False
|
||||
if keyType(k) == "string":
|
||||
in_find=True
|
||||
value_key = 'find__value'
|
||||
if op == '=':
|
||||
if k in models.Item.facet_keys:
|
||||
in_find=False
|
||||
v = models.Item.objects.filter(facets__key=k, facets__value=v)
|
||||
k = 'id__in'
|
||||
else:
|
||||
value_key = 'find__value__iexact'
|
||||
elif op == '^':
|
||||
v = v[1:]
|
||||
value_key = 'find__value__istartswith'
|
||||
elif op == '$':
|
||||
v = v[:-1]
|
||||
value_key = 'find__value__iendswith'
|
||||
else: # elif op == '~':
|
||||
value_key = 'find__value__icontains'
|
||||
k = str(k)
|
||||
if exclude:
|
||||
if in_find and not k.startswith('itemId'):
|
||||
q = ~Q(**{'find__key':k, value_key:v})
|
||||
else:
|
||||
q = ~Q(**{k:v})
|
||||
else:
|
||||
if in_find and not k.startswith('itemId'):
|
||||
q = Q(**{'find__key':k, value_key:v})
|
||||
else:
|
||||
q = Q(**{k:v})
|
||||
return q
|
||||
else: #number or date
|
||||
#FIXME: this part needs to be moved to use key/value find db
|
||||
def parseDate(d):
|
||||
while len(d) < 3:
|
||||
d.append(1)
|
||||
return datetime(*[int(i) for i in d])
|
||||
if op == '-':
|
||||
v1 = v[1]
|
||||
v2 = v[2]
|
||||
if keyType(k) == "date":
|
||||
v1 = parseDate(v1.split('.'))
|
||||
v2 = parseDate(v2.split('.'))
|
||||
|
||||
k = 'find__%s' % k
|
||||
if exclude: #!1960-1970
|
||||
k1 = str('%s__lt' % k)
|
||||
k2 = str('%s__gte' % k)
|
||||
return Q(**{k1:v1})|Q(**{k2:v2})
|
||||
else: #1960-1970
|
||||
k1 = str('%s__gte' % k)
|
||||
k2 = str('%s__lt' % k)
|
||||
return Q(**{k1:v1})&Q(**{k2:v2})
|
||||
else:
|
||||
if keyType(k) == "date":
|
||||
v = parseDate(v.split('.'))
|
||||
if op == '=':
|
||||
k = '%s__exact' % k
|
||||
elif op == '>':
|
||||
k = '%s__gt' % k
|
||||
elif op == '>=':
|
||||
k = '%s__gte' % k
|
||||
elif op == '<':
|
||||
k = '%s__lt' % k
|
||||
elif op == '<=':
|
||||
k = '%s__lte' % k
|
||||
|
||||
k = 'find__%s' % k
|
||||
k = str(k)
|
||||
if exclude: #!1960
|
||||
return ~Q(**{k:v})
|
||||
else: #1960
|
||||
return Q(**{k:v})
|
||||
|
||||
def parseConditions(conditions, operator):
|
||||
'''
|
||||
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', '&'))
|
||||
if q: conn.append(q)
|
||||
pass
|
||||
else:
|
||||
if condition.get('value', '') != '' or condition.get('operator', '') == '=':
|
||||
conn.append(parseCondition(condition))
|
||||
if conn:
|
||||
q = conn[0]
|
||||
for c in conn[1:]:
|
||||
if operator == '|':
|
||||
q = q | c
|
||||
else:
|
||||
q = q & c
|
||||
return q
|
||||
return None
|
||||
|
||||
class ItemManager(Manager):
|
||||
def get_query_set(self):
|
||||
return super(ItemManager, self).get_query_set()
|
||||
|
||||
def filter_list(self, qs, l, user):
|
||||
if l != "all":
|
||||
l = l.split(":")
|
||||
only_public = True
|
||||
if not user.is_anonymous():
|
||||
if len(l) == 1: l = [request.user.username] + l
|
||||
if request.user.username == l[0]:
|
||||
only_public = False
|
||||
if len(l) == 2:
|
||||
lqs = models.List.objects.filter(name=l[1], user__username=l[0])
|
||||
if only_public:
|
||||
lqs = qls.filter(public=True)
|
||||
if lqs.count() == 1:
|
||||
qs = qs.filter(listitem__list__id=lqs[0].id)
|
||||
return qs
|
||||
|
||||
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()
|
||||
#only include items that have hard metadata
|
||||
qs = qs.filter(available=True)
|
||||
conditions = parseConditions(data['query']['conditions'],
|
||||
data['query'].get('operator', '&'))
|
||||
if conditions:
|
||||
qs = qs.filter(conditions)
|
||||
|
||||
#FIXME: lists are part of query now
|
||||
# filter list, works for own or public lists
|
||||
l = data.get('list', 'all')
|
||||
qs = self.filter_list(qs, l, user)
|
||||
return qs
|
||||
|
||||
Loading…
Add table
Add a link
Reference in a new issue