def main():
# Establish a connection to use for querying.
connection = gclouddatastore.get_connection(
DATASET_ID, CLIENT_EMAIL, PRIVATE_KEY_PATH)
# Start with a Query for Things.
query = connection.query().kind('Thing')
print '\nCreating a new Thing called Toy...'
toy = connection.new_entity('Thing')
toy.update({'name': 'Toy', 'some_int_value': 1234})
toy.save()
print '\nLooking up the Toy...'
print connection.get_entities([toy.key()])
print '\nDeleting the Toy...'
toy.delete()
print '\nLooking up the Toy again (this should be empty)...'
print connection.get_entities([toy.key()])
print '\nShowing first 2 Things...'
print query.limit(2).fetch()
print '\nShowing things in "other-namespace"...'
print query.namespace('other-namespace').fetch()
print '\nShowing Things named Computer...'
print query.filter('name =', 'Computer').fetch()
print '\nFilter by multiple things...'
print query.filter('name =', 'Computer').filter(
'my_int_value =', 1234).fetch()
def main():
"""A full example script demonstrating how to use the client."""
# Establish a connection to use for querying.
connection = gclouddatastore.get_connection(CLIENT_EMAIL, PRIVATE_KEY_PATH)
dataset = connection.dataset(DATASET_ID)
print '\nCreating a new Thing called Toy...'
toy = dataset.entity('Thing')
toy.update({'name': 'Toy', 'some_int_value': 1234})
toy.save()
print '\nLooking up the Toy...'
print dataset.get_entities([toy.key()])
print '\nDeleting the Toy...'
toy.delete()
print '\nLooking up the Toy again (this should be empty)...'
print dataset.get_entities([toy.key()])
query = dataset.query().kind('Thing')
print '\nShowing first 2 Things...'
print query.limit(2).fetch()
print '\nShowing Things named Computer...'
print query.filter('name =', 'Computer').fetch()
print '\nFilter by multiple things...'
print query.filter('name =', 'Computer').filter(
'my_int_value =', 1234).fetch()
print '\nStarting a transaction...'
with dataset.transaction():
print 'Creating and savng an entity...'
thing = dataset.entity('Thing')
thing.key(thing.key().name('foo'))
thing['age'] = 10
thing.save()
print 'Creating and saving another entity...'
thing2 = dataset.entity('Thing')
thing2.key(thing2.key().name('bar'))
thing2['age'] = 15
thing2.save()
print 'Committing the transaction...',
print 'done.'
print '\nDeleting the entities...'
print thing.delete(), thing2.delete()
print '\nStarting another transaction...'
with dataset.transaction() as t:
print 'Creating an entity...'
thing = dataset.entity('Thing')
thing.key(thing.key().name('another'))
thing.save()
print 'Rolling back the transaction...'
t.rollback()
print 'Was the entity actually created? ... ',
if dataset.get_entities([thing.key()]):
print 'yes.'
else:
print 'no.'
print '\nStarting one more transaction...'
with dataset.transaction():
print 'Creating a simple thing'
thing = dataset.entity('Thing')
thing.save()
print 'Before committing, the key should be incomplete...', thing.key()
print 'After committing, the key should be complete...', thing.key()
print 'Deleting the entity...'
thing.delete()
