def archive(cls):
"""Delete all Todo items that are done."""
req = datastore.BeginTransactionRequest()
resp = datastore.begin_transaction(req)
tx = resp.transaction
req = datastore.RunQueryRequest()
req.read_options.transaction = tx
q = req.query
set_kind(q, kind='Todo')
add_projection(q, '__key__')
set_composite_filter(
q.filter, datastore.CompositeFilter.AND,
set_property_filter(datastore.Filter(), 'done',
datastore.PropertyFilter.EQUAL, True),
set_property_filter(datastore.Filter(), '__key__',
datastore.PropertyFilter.HAS_ANCESTOR,
default_todo_list.key))
resp = datastore.run_query(req)
keys = [r.entity.key for r in resp.batch.entity_result]
req = datastore.CommitRequest()
req.transaction = tx
req.mutation.delete.extend(keys)
resp = datastore.commit(req)
return ''
def testFilter(self):
f = datastore.Filter()
set_composite_filter(
f, datastore.CompositeFilter.AND,
set_property_filter(datastore.Filter(), 'foo',
datastore.PropertyFilter.EQUAL, u'bar'),
set_property_filter(datastore.Filter(), 'hop',
datastore.PropertyFilter.GREATER_THAN, 2.0))
cf = f.composite_filter
pf = cf.filter[0].property_filter
self.assertEquals('foo', pf.property.name)
self.assertEquals('bar', pf.value.string_value)
self.assertEquals(datastore.PropertyFilter.EQUAL, pf.operator)
pf = cf.filter[1].property_filter
self.assertEquals('hop', pf.property.name)
self.assertEquals(2.0, pf.value.double_value)
self.assertEquals(datastore.PropertyFilter.GREATER_THAN, pf.operator)
self.assertEquals(datastore.CompositeFilter.AND, cf.operator)