def __iter__(self):
from types import GeneratorType
try:
result = super(new_meta, self).__iter__()
except AttributeError:
result = Unset
if isinstance(result, GeneratorType):
for item in result:
yield item
elif result is Unset:
from xotl.ql.expressions import is_instance
query_part = next(iter(this(name)))
is_instance(query_part, self)
yield query_part
else:
raise TypeError('Class {target} has a metaclass with an '
'__iter__ that does not support thesefy'
.format(target=target))
def _test_class(self, Person):
from xotl.ql.expressions import is_instance
q = these((who for who in Person if who.age > 30), limit=100)
# We assume that Person has been thesefied with thesefy('Person')
who = domain = this('Person')
q1 = these(w for w in domain if is_instance(w, Person) if w.age > 30)
is_filter = is_instance(who, Person)
age_filter = who.age > 30
with context(UNPROXIFING_CONTEXT):
self.assertEqual(2, len(q.filters))
self.assertEqual(2, len(q1.filters))
self.assertIn(is_filter, q.filters)
self.assertIn(is_filter, q1.filters)
self.assertIn(age_filter, q.filters)
self.assertIn(age_filter, q1.filters)
self.assertEqual(q.selection, q1.selection)
self.assertEqual(q.tokens, q1.tokens)
def __iter__(self):
from types import GeneratorType
try:
result = super(new_meta, self).__iter__()
except AttributeError:
result = Unset
if isinstance(result, GeneratorType):
for item in result:
yield item
elif result is not Unset and IQueryPart.providedBy(result):
yield result
elif result is Unset:
from xotl.ql.expressions import is_instance
query_part = next(iter(this(name)))
is_instance(query_part, self)
yield query_part
else:
raise TypeError(
'Class {target} has a metaclass with an '
'__iter__ that does not support thesefy'.format(
target=target))
def _test_class(self, Person):
from xotl.ql.expressions import is_instance
q = these((who for who in Person if who.age > 30),
limit=100)
# We assume that Person has been thesefied with thesefy('Person')
who = domain = this('Person')
q1 = these(w for w in domain if is_instance(w, Person)
if w.age > 30)
is_filter = is_instance(who, Person)
age_filter = who.age > 30
with context(UNPROXIFING_CONTEXT):
self.assertEqual(2, len(q.filters))
self.assertEqual(2, len(q1.filters))
self.assertIn(is_filter, q.filters)
self.assertIn(is_filter, q1.filters)
self.assertIn(age_filter, q.filters)
self.assertIn(age_filter, q1.filters)
self.assertEqual(q.selection, q1.selection)
self.assertEqual(q.tokens, q1.tokens)
