I have a productpart database containing a string property named \'type\'. What I\'m trying to do is to get all products by a given type (sometimes more then one type).
I need to make a list property that will contain lists, something like: db.List开发者_如何转开发Property(list(str))
I\'m trying to find the most efficient way to get all objects from the datastore except ones already contained in a list.
I\'m trying my hand at google appengine and using the datastore with php and quercus. I\'m not familiar with Java or Python, so lots of learning going on here. I\'ve got pages rendering, and i\'m abl
I know that the way to handle DB transactionality on the app engine is to give different entities the same Parent(Entity Group) and to use db.run_in_transaction.
How do I write a query against the entity key using GQL in the Google App Engine Data Viewer ? In the viewer, the first column (Id/Name) displays as name=_1, in the detail view it shows the key as
I\'m using app eng开发者_JS百科ine (Java) datastore API to build a project. I\'m not using JDO/JPA but low level API.
I\'m with app engine and using the java low level api, and I want to retrieve a group of enti开发者_如何学Cties having its ids. What\'s the way to do so? I could fetch one by one but there must be a b
I made a very minor mod to the GqlQuery to retrieve only specified records us开发者_如何学Pythoning the
Just wondering... why does Google app engine recognize \"special\" string data types such as Link, Email, PhoneNumber, PostalAddress and such? They seem to be simple text types, and don\'t even have a
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