本文整理汇总了Python中google.appengine.api.datastore.Key.from_path方法的典型用法代码示例。如果您正苦于以下问题:Python Key.from_path方法的具体用法?Python Key.from_path怎么用?Python Key.from_path使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类google.appengine.api.datastore.Key
的用法示例。
在下文中一共展示了Key.from_path方法的15个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: post
# 需要导入模块: from google.appengine.api.datastore import Key [as 别名]
# 或者: from google.appengine.api.datastore.Key import from_path [as 别名]
def post(self):
query = self.request.get('symptoms')
id= self.request.get('id')
did= self.request.get('did')
dis = self.request.get('disease').split(' ')
med = self.request.get('medicine')
sym = summarize.doctor_symptoms(query)
q= patient.all(keys_only=True)
q.filter("__key__ >=", Key.from_path('patient', id))
res = q.get()
if res:
d= doctor.all(keys_only=True)
d.filter("__key__ >=", Key.from_path('doctor', did))
resd = d.get()
if resd:
result ="Updated successfully"
rec = record(parent=res, symptoms = sym, disease =dis,medicine=med, doc = did)
rec.rec_date =datetime.datetime.now().date()
rec.put()
else:
result ="Invalid DocID"
else:
result ="Invalid PatientID"
template_values = {
'result': result
}
template = jinja_environment.get_template('message.html')
self.response.out.write(template.render(template_values))
示例2: _map_entity
# 需要导入模块: from google.appengine.api.datastore import Key [as 别名]
# 或者: from google.appengine.api.datastore.Key import from_path [as 别名]
def _map_entity(self, entity):
new_key = Key.from_path(
self.to_kind, entity.key().id_or_name(), namespace=self.to_namespace
)
parent = entity.parent()
if parent:
# If the entity has an ancestor then we need to make sure that that ancestor exists in
# the new namespace as well
new_parent_key = Key.from_path(
parent.kind(), parent.is_or_name(), namespace=self.to_namespace
)
new_parent_exists = Get([new_parent_key])[0]
if not new_parent_exists:
raise DataError(
"Trying to copy entity with an ancestor (%r) to a new namespace but the "
"ancestor does not exist in the new namespace. Copy the ancestors first."
% entity.key()
)
def txn():
existing = Get([new_key])[0]
if existing and not self.overwrite_existing:
return
if isinstance(entity.key().id_or_name(), (int, long)):
reserve_id(self.to_kind, entity.key().id_or_name(), self.to_namespace)
new_entity = clone_entity(entity, new_key)
Put(new_entity)
RunInTransaction(txn)
示例3: create_key
# 需要导入模块: from google.appengine.api.datastore import Key [as 别名]
# 或者: from google.appengine.api.datastore.Key import from_path [as 别名]
def create_key(db_table, value):
if isinstance(value, GAEKey):
parent = None
if value.parent_key() is not None:
parent = value.parent_key().real_key()
return Key.from_path(db_table, value.id_or_name(), parent=parent)
if isinstance(value, (int, long)) and value < 1:
return None
return Key.from_path(db_table, value)
示例4: put_from_message
# 需要导入模块: from google.appengine.api.datastore import Key [as 别名]
# 或者: from google.appengine.api.datastore.Key import from_path [as 别名]
def put_from_message(cls, message):
"""
Inserts a patient into the DB
Args:
message: A PatientPut instance to be inserted.
Returns:
The Patient entity that was inserted.
"""
q = Doctor.all()
q.filter('__key__ =', Key.from_path('Doctor', message.doctor_email))
doctor = q.get()
new_patient = None
patient = Patient.get_patient(message.email)
if patient != None:
new_patient = cls(key_name=message.email,
doctor=doctor,
first_name=message.first_name,
last_name=message.last_name,
phone=message.phone,
diagnosis=patient.diagnosis,
septic_risk=patient.septic_risk,
basis_pass=patient.basis_pass)
else:
new_patient = cls(key_name=message.email,
doctor=doctor,
first_name=message.first_name,
last_name=message.last_name,
phone=message.phone,
diagnosis='No',
septic_risk=-1.0)
new_patient.put()
return new_patient
示例5: to_python
# 需要导入模块: from google.appengine.api.datastore import Key [as 别名]
# 或者: from google.appengine.api.datastore.Key import from_path [as 别名]
def to_python(self, value):
if value is None:
return None
if isinstance(value, GAEKey):
return value
if isinstance(value, Key):
return GAEKey(real_key=value)
if isinstance(value, basestring):
try:
return GAEKey(real_key=Key(encoded=value))
except datastore_errors.BadKeyError:
return GAEKey(real_key=Key.from_path(self.model._meta.db_table, long(value)))
if isinstance(value, (int, long)):
return GAEKey(real_key=Key.from_path(self.model._meta.db_table, value))
raise ValidationError("GAEKeyField does not accept %s" % type(value))
示例6: acquire_marker
# 需要导入模块: from google.appengine.api.datastore import Key [as 别名]
# 或者: from google.appengine.api.datastore.Key import from_path [as 别名]
def acquire_marker(identifier):
# Key.from_path expects None for an empty namespace, but Key.namespace() returns ''
namespace = entity_key.namespace() or None
identifier_key = Key.from_path(UniqueMarker.kind(), identifier, namespace=namespace)
marker = UniqueMarker.get(identifier_key)
if marker:
# If the marker instance is None, and the marker is older then 5 seconds then we wipe it out
# and assume that it's stale.
if not marker.instance and (datetime.datetime.utcnow() - marker.created).seconds > 5:
marker.delete()
elif marker.instance and marker.instance != entity_key and key_exists(marker.instance):
fields_and_values = identifier.split("|")
table_name = fields_and_values[0]
fields_and_values = fields_and_values[1:]
fields = [ x.split(":")[0] for x in fields_and_values ]
raise IntegrityError("Unique constraint violation for kind {} on fields: {}".format(table_name, ", ".join(fields)))
else:
# The marker is ours anyway
return marker
marker = UniqueMarker(
key=identifier_key,
instance=entity_key if entity_key.id_or_name() else None, # May be None if unsaved
created=datetime.datetime.utcnow()
)
marker.put()
return marker
示例7: _fetch_entity
# 需要导入模块: from google.appengine.api.datastore import Key [as 别名]
# 或者: from google.appengine.api.datastore.Key import from_path [as 别名]
def _fetch_entity(self, instance):
kind = instance._meta.db_table
namespace = connection.settings_dict["NAMESPACE"]
return Get(
Key.from_path(kind, instance.pk, namespace=namespace)
)
示例8: get_count
# 需要导入模块: from google.appengine.api.datastore import Key [as 别名]
# 或者: from google.appengine.api.datastore.Key import from_path [as 别名]
def get_count(datastore, counter_id):
key = Key.from_path('Counter', counter_id, _app=PROJECT_ID)
entity = yield datastore.get(key)
if entity is None:
raise gen.Return(0)
raise gen.Return(entity.get('count', 0))
示例9: test_blob
# 需要导入模块: from google.appengine.api.datastore import Key [as 别名]
# 或者: from google.appengine.api.datastore.Key import from_path [as 别名]
def test_blob(self):
x = BlobModel(data='lalala')
x.full_clean()
x.save()
e = Get(Key.from_path(BlobModel._meta.db_table, x.pk))
self.assertEqual(e['data'], x.data)
x = BlobModel.objects.all()[0]
self.assertEqual(e['data'], x.data)
示例10: from_service_id
# 需要导入模块: from google.appengine.api.datastore import Key [as 别名]
# 或者: from google.appengine.api.datastore.Key import from_path [as 别名]
def from_service_id(cls, service, id):
'''
Use this with data returned from get_id().
'''
if use_ancestor:
return cls.objects.get(key=Key.from_path(
cls._meta.db_table, long(id), parent=service.key
))
return cls.objects.get(service=service, pk=id)
示例11: delete
# 需要导入模块: from google.appengine.api.datastore import Key [as 别名]
# 或者: from google.appengine.api.datastore.Key import from_path [as 别名]
def delete(self):
from rogerthat.models import DSPicklePart, DSPickle
while True:
parts = DSPicklePart.all(keys_only=True).ancestor(self.ancestor()).fetch(200)
if not parts:
break
db.delete(parts)
db.delete(Key.from_path(DSPickle.kind(), self.key))
示例12: get_db_prep_value
# 需要导入模块: from google.appengine.api.datastore import Key [as 别名]
# 或者: from google.appengine.api.datastore.Key import from_path [as 别名]
def get_db_prep_value(self, value, connection, prepared=False):
if isinstance(value, AncestorKey):
# If the key isn't fully initialized pass it through, the InserCompiler will handle it
if value.key_id is None:
return value
return Key.from_path(
self.model._meta.db_table,
value.key_id,
parent=value._parent_key
)
return super(GAEKeyField, self).get_db_prep_value(value, connection)
示例13: read
# 需要导入模块: from google.appengine.api.datastore import Key [as 别名]
# 或者: from google.appengine.api.datastore.Key import from_path [as 别名]
def read(key):
from rogerthat.models import DSPicklePart, DSPickle
dsp = db.get(Key.from_path(DSPickle.kind(), key))
if not dsp:
return DSPickler(key)
stream = StringIO()
for dspp in DSPicklePart.all().ancestor(dsp).filter('version =', dsp.version).order('number'):
stream.write(str(dspp.data))
stream.seek(0)
data = pickle.load(stream)
return DSPickler(key, dsp.version, data)
示例14: get_patient
# 需要导入模块: from google.appengine.api.datastore import Key [as 别名]
# 或者: from google.appengine.api.datastore.Key import from_path [as 别名]
def get_patient(cls, email):
"""
Gets patient data
Args:
email: Patient e-mail address
Returns:
The Patient entity with corresponsing e-mail address
"""
p = cls.all()
p.filter('__key__ =', Key.from_path('Patient', email))
return p.get()
示例15: mark_deleted_tx
# 需要导入模块: from google.appengine.api.datastore import Key [as 别名]
# 或者: from google.appengine.api.datastore.Key import from_path [as 别名]
def mark_deleted_tx():
user = users.get_current_user()
entry = db.get(Key.from_path(cls.__name__, int(id)))
if not entry or entry.deleted:
return None
if not user or entry.user_id != user.user_id():
return None
entry.modified = now
entry.deleted = True
entry.put()
return entry