"""
An object that can be passed to WhereNode.add() and knows how to
pre-process itself prior to including in the WhereNode.
+
+ NOTES:
+ - we redefine this class, because when self.field is None calls
+ Field().get_db_prep_lookup(), which short-circuits our LDAP-specific code.
"""
- def process(self, lookup_type, value):
+ def process(self, lookup_type, value, connection):
"""
Returns a tuple of data suitable for inclusion in a WhereNode
instance.
try:
if self.field:
- params = self.field.get_db_prep_lookup(lookup_type, value)
+ params = self.field.get_db_prep_lookup(lookup_type, value,
+ connection=connection, prepared=True)
db_type = self.field.db_type()
else:
- params = CharField().get_db_prep_lookup(lookup_type, value)
+ params = CharField().get_db_prep_lookup(lookup_type, value,
+ connection=connection, prepared=True)
db_type = None
except ObjectDoesNotExist:
raise EmptyShortCircuit
constraint, lookup_type, y, values = item
comp = get_lookup_operator(lookup_type)
- if hasattr(constraint, "col"):
- # django 1.2
- column = constraint.col
- if lookup_type == 'in':
- equal_bits = [ "(%s%s%s)" % (column, comp, value) for value in values ]
- clause = '(|%s)' % ''.join(equal_bits)
- else:
- clause = "(%s%s%s)" % (constraint.col, comp, values)
+ if lookup_type == 'in':
+ equal_bits = [ "(%s%s%s)" % (constraint.col, comp, value) for value in values ]
+ clause = '(|%s)' % ''.join(equal_bits)
else:
- # django 1.1
- (table, column, db_type) = constraint
- equal_bits = [ "(%s%s%s)" % (column, comp, value) for value in values ]
- if len(equal_bits) == 1:
- clause = equal_bits[0]
- else:
- clause = '(|%s)' % ''.join(equal_bits)
+ clause = "(%s%s%s)" % (constraint.col, comp, values)
+
+ bits.append(clause)
+
+ if not len(bits):
+ return '', []
- if self.negated:
- bits.append('(!%s)' % clause)
- else:
- bits.append(clause)
if len(bits) == 1:
sql_string = bits[0]
elif self.connector == AND:
sql_string = '(|%s)' % ''.join(bits)
else:
raise Exception("Unhandled WHERE connector: %s" % self.connector)
+
+ if self.negated:
+ sql_string = ('(!%s)' % sql_string)
+
return sql_string, []
class Query(BaseQuery):
filterstr += sql
return '(&%s)' % filterstr
- def get_count(self, using=None):
+ def get_count(self, using):
try:
vals = ldapdb.connection.search_s(
self.model.base_dn,
def get_compiler(self, using=None, connection=None):
return Compiler(self, ldapdb.connection, using)
- def results_iter(self):
- "For django 1.1 compatibility"
- return self.get_compiler().results_iter()
+ def has_results(self, using):
+ return self.get_count(using) != 0
class QuerySet(BaseQuerySet):
def __init__(self, model=None, query=None, using=None):
if not query:
- import inspect
- spec = inspect.getargspec(BaseQuery.__init__)
- if len(spec[0]) == 3:
- # django 1.2
- query = Query(model, WhereNode)
- else:
- # django 1.1
- query = Query(model, None, WhereNode)
- super(QuerySet, self).__init__(model=model, query=query)
+ query = Query(model, WhereNode)
+ super(QuerySet, self).__init__(model=model, query=query, using=using)
def delete(self):
"Bulk deletion."