How to remove an object from the Google App Data Warehouse?

Question

I created an object in the Google App Engine datastore.

How to delete this object?

Answer 1

You did not specify which API you are using.

In Python, it is like this :

db.delete(modelId)

In Java, it should be like (I have not tested this):

PersistenceManager pm = PMF.get().getPersistenceManager();

MyModel entity = pm.getObjectById(MyModel.class, modelId);
pm.deletePersistent(entity);

pm.close();

Answer 2

In python, if you know the key, it is very simple:

db.delete(key)

Answer 3

, :

Somethingendpoint endpoint = CloudEndpointUtils.updateBuilder(endpointBuilder).build();

:

endpoint.remove<ModelName>(long ID); 

Answer 4

, - ( Python):

class MyClass(ndb.Model):
    myString = ndb.StringProperty(indexed=false)

def deleteAllEntities():
    entities = MyClass.query()
    for entity in entities:
        entity.key.delete()

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More information here: https://cloud.google.com/appengine/docs/python/datastore/entities#Python_Deleting_an_entity