google-cloud-datastore

I am trying to implement an ndb model audit so that all changes to properties are stored within each model instance. Here is the code of the _pre_put_hook I chose to implement that. def _pre_put_hook(self): # save a history record for updates if not (self.key is None or self.key.id() is None): old_object = self.key.get(use_cache=True) for attr in dir(self): if not callable(getattr(self, attr)) and not attr.startswith("_"): if getattr(self, attr) != getattr(old_object, attr): logging.debug('UPDATE: {0}'.format(attr)) logging.debug('OLD: {0} NEW: {1}'.format(getattr(old_object, attr), getattr

I just migrated to HRD and now its telling me i cant access my own blobs... Uncaught exception from servlet java.lang.SecurityException: This application does not have access to that blob. at com.google.appengine.api.blobstore.BlobstoreServiceImpl.fetchData(BlobstoreServiceImpl.java:200) at com.droidastic.telljokes.server.servlet.ServeBlobsServlet.checkBlobKeyExists(ServeBlobsServlet.java:100) at com.droidastic.telljokes.server.servlet.ServeBlobsServlet.doGet(ServeBlobsServlet.java:64) I stored the keys as a string inside the datastore entities and then i create them like this: BlobKey key =

I need to make a list property that will contain lists, something like: db.ListProperty(list(str)) I know list(str) is not a supported value type so as I imagined I received a "ValueError" exception. Thought maybe there is a creative idea out there of how to overcome this :) Thanks! You could use pickle to serialize your list and store it in a BlobProperty field. Expanding on Adam's suggestion, you can push the pickling into its own Property class. Here is an example that handles validation, and converting the provided list into and out of a Blob type. The provided list can contain any data

We still have a rare case of duplicate entries when this POST method is called. I had asked for advice previously on Stack overflow and was given a solution , that is utilising the parent/child methodology to retain strongly consistent queries. I have migrated all data into that form and let it run for another 3 months. However the problem was never solved. The problem is right here with this conditional if recordsdb.count() == 1: It should be true in order to update the entry, but instead HRD might not always find the latest entry and creates a new entry instead. As you can see, we are

I am trying to use an Expando model as a repeated StructuredProperty in another model. Namely, I would like to add an indefinite number of Accounts to my User model. As Accounts can have different properties depending on their types ( Accounts are references to social network accounts, and for example Twitter requires more information than Facebook for its OAuth process), I have designed my Account model as an Expando . I've added all basic information in the model definition, but I plan to add custom properties for specific social networks (e.g., a specific access_token_secret property for