ndb get by key
don't think you can't get an entity by id without knowing the kind because ... Models in NDB don't define their key type as part of the model., You can parse the id to key string: key = ndb.Key(YourModel, id).urlsafe(). and then: result = YourModel.query(YourModel.key== key).get().,For information about using NDB with Python 3 apps, see Migrating to Cloud NDB. ... If you have an entity's key, you can retrieve the entity from Cloud Datastore:. , Model.get_by_id will use the context-cache and memcache in exactly the same way as Key.get., def get(self): guestbook_name = self.request.get('guestbook_name') ancestor_key = ndb.Key('Book', guestbook_name or '*notitle*') greetings ..., from google.appengine.ext import ndb class Person(ndb. .... _pre_get_hook(cls, key): 取得這個模型的實體時，在 Key.get() 之前執行的掛鉤。, 每一個儲存的實體皆擁有一個金鑰。. 若要取得實體的金鑰，請使用模型的金鑰屬性。若需從該金鑰中擷取實體，請呼叫 Key 物件的get() 方法。,You can do this in one go by doing an ancestor query, rather than a get: chapter_key = ndb.Key('Book', long(bookId), 'Chapter', long(chapterId)) page ... , account.key = ndb.Key('Account', '[email protected]') # You can also use the model class object itself, rather than its name, # to specify the ...
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 ndb get by key 相關參考資料
app engine ndb - how to load entity by key using id? - Stack ...
don't think you can't get an entity by id without knowing the kind because ... Models in NDB don't define their key type as part of the model. https://stackoverflow.com app engine ndb - how to load entity by key using id? - Stack Overflow
You can parse the id to key string: key = ndb.Key(YourModel, id).urlsafe(). and then: result = YourModel.query(YourModel.key== key).get(). https://stackoverflow.com Creating, Retrieving, Updating, and Deleting Entities | App ...
For information about using NDB with Python 3 apps, see Migrating to Cloud NDB. ... If you have an entity's key, you can retrieve the entity from Cloud Datastore:. https://cloud.google.com NDB key vs get_by_id - Stack Overflow
Model.get_by_id will use the context-cache and memcache in exactly the same way as Key.get. https://stackoverflow.com NDB 查詢 | Python 2 適用的App Engine 標準環境 | Google Cloud
def get(self): guestbook_name = self.request.get('guestbook_name') ancestor_key = ndb.Key('Book', guestbook_name or '*notitle*') greetings ... https://cloud.google.com NDB 模型類別 | Python 2 適用的App Engine 標準環境 | Google ...
from google.appengine.ext import ndb class Person(ndb. .... _pre_get_hook(cls, key): 取得這個模型的實體時，在 Key.get() 之前執行的掛鉤。 https://cloud.google.com NDB 金鑰類別 | Python 2 適用的App Engine 標準環境 | Google ...
每一個儲存的實體皆擁有一個金鑰。. 若要取得實體的金鑰，請使用模型的金鑰屬性。若需從該金鑰中擷取實體，請呼叫 Key 物件的get() 方法。 https://cloud.google.com Using Key in NDB to retrieve an entity - Stack Overflow
You can do this in one go by doing an ancestor query, rather than a get: chapter_key = ndb.Key('Book', long(bookId), 'Chapter', long(chapterId)) page ... https://stackoverflow.com 建立及使用實體金鑰 | Python 2 適用的App Engine 標準環境 ...
account.key = ndb.Key('Account', '[email protected]') # You can also use the model class object itself, rather than its name, # to specify the ... https://cloud.google.com |