Question

I am using plupload plugin to upload multiple files. That works fine.

In Files Model, I am storing the user_id and blob_key.
Here is a form.

Suppose User’s uploaded the files using plugin. That files are successfully saved in FILES. Then he submit the form. Now description field saved to Event. how do I know that event has this this files? There is no any relationship between Event and Files models. I am confused. So Will you please help me to create a relationship? thanks alot 🙂

 class Files(db.Model):
      blob_key = blobstore.BlobReferenceProperty(required=True)
      created_by = xxxxxx

Here is my second Model

class Event(db.Model):
  description = db.StringProperty(required=True)

Answer 1

Here’s how you’d set a reference to from the Event to the File.

If you need the opposite, you can put a db.ReferenceProperty(Event) in the File class.

class Event(db.Model):
    description = db.StringProperty(required=True)
    file = db.ReferenceProperty(Files)