def test_complex(self):
"""
The complex thing
"""
#what it does is creates a Q on the
#fly and ORs it with set_compexq
tmp_q = self.q1.set_compexq((Q(a=True, b=True) | Q(c=False, d=True)),
"OR")
assert tmp_q.result == True
tmp_q = self.q1.set_compexq((Q(a=True, b=False) | Q(c=False, d=False)),
"AND")
assert tmp_q.result == False
def __main_filter(self, outside_connector, inside_connector, *args,
**kwargs):
"""
Common OR and AND operation we do.
@param outside_connector : The connector between two chained query
@param inside_connector : The connector inside the query
"""
temp_q = Q(*args, **kwargs)
if inside_connector == "OR":
#because the default is AND
temp_q.connector = inside_connector
if self.q:
current_q = deepcopy(self.q)
else:
current_q = None
if not current_q:
current_q = temp_q
else:
if outside_connector == "OR":
current_q = current_q | temp_q
else:
current_q = current_q & temp_q
fresh_query = self._clone(q_object=current_q,
pull_result=self.pull_result)
return fresh_query
def exclude(self, *args, **kwargs):
"""
Useful when you want to ignore some of the things
in query,the exclude iverts the query NOT used so
much ...
"""
temp_q = ~Q(*args, **kwargs)
if self.q:
current_q = deepcopy(self.q)
else:
current_q = None
if not self.q:
current_q = temp_q
else:
current_q.add(temp_q, "AND")
fresh_query = self._clone(q_object=current_q,
pull_result=self.pull_result)
return fresh_query
def __traverse_deserialize(self, traverse_object):
"""
The private recursive part that traverses
the incoming overlord list (included with facts)
and produces a Q object query object from it.
**(heavy recursive code)Caution any change here
can make facts not tobe deserialized correctly so
that will break the facts API.
@type : list
@param : List of overlord incoming facts query
something like :[NOT,[AND,[a,TRUE,b,FALSE]]]
@return : Q object returned
"""
q_object = None
#lets try divide and conquer :)
#assume that it is [NOT,[AND,[a,TRUE,b,FALSE]]]
#print "The traverse object at start is ",traverse_object
tmp_negated = False
tmp_connector = "AND"
if type(traverse_object[0]) == str and traverse_object[0] == "NOT":
tmp_negated = True
#q_object.negated = ~q_object
traverse_object = traverse_object[1:][0]
#print "After NOT the traverse_object is ",traverse_object
#raw_input()
if type(traverse_object[0]) == str and traverse_object[0] in [
"AND", "OR"
]:
#q_object.connector = traverse_object[0]
tmp_connector = traverse_object[0]
traverse_object = traverse_object[1:][0]
#print "After CONNETOR the traverse_object is ",traverse_object
#raw_input()
if type(traverse_object[0]
) == str and not traverse_object[0] in self.VALID_QUERY_KEYS:
#print "In children : ",traverse_object
for ch in xrange(0, len(traverse_object), 2):
#q_object.add(Q(tuple(traverse_object[ch:ch+2])),q_object.connector)
#print "We work on ",traverse_object[ch:ch+2]
if not q_object:
q_object = Q(tuple(traverse_object[ch:ch + 2]))
q_object.connector = tmp_connector
else:
if q_object.connector == "OR":
q_object = q_object | Q(
tuple(traverse_object[ch:ch + 2]))
else:
q_object = q_object & Q(
tuple(traverse_object[ch:ch + 2]))
if tmp_negated:
q_object = ~q_object
#print "IN children Q object is ",q_object
traverse_object = []
#print "After CHILDREN the traverse_object is ",traverse_object
#raw_input()
if traverse_object:
#print "The traverse object at end is ",traverse_object
#raw_input()
for t_o in traverse_object:
#print "The traverse object at end is ",t_o
#raw_input()
tmp_q = self.__traverse_deserialize(t_o)
#print "I ADD THAT TO THE ALL ",tmp_q
#print "WILL BE ADDED TO ",q_object
if not q_object:
q_object = Q()
q_object.connector = tmp_connector
#q_object.add(tmp_q,q_object.connector)
if tmp_connector == "OR":
q_object = q_object | tmp_q
else:
q_object = q_object & tmp_q
#print "AFTER ADDITION ",q_object
if tmp_negated:
q_object = ~q_object
return q_object
def setUp(self):
self.q1 = FuncLogicQuery(Q(a=True, b=True))
self.q2 = FuncLogicQuery(Q(a=False, b=True))
self.q3 = FuncLogicQuery(Q(a=True, b=False))
self.q4 = FuncLogicQuery(Q(a=False, b=False))
self.q_negated = FuncLogicQuery(~Q(a=False, b=False))