Hi,
I have the following model [pseudo code]:
db.Model("podcast", {
name: StringProperty,
description: TextProperty,
homePageURL: StringProperty,
addedDate: DateProperty
});
db.Model("category", {
name: StringProperty,
podcastsNumber: IntegerProperty
});
db.Model("podcastcategory", {
category: ReferenceProperty({referenceClass: Category}),
podcast: ReferenceProperty({referenceClass: Podcast})
});
I am trying to query the datastore to show in the web page the latest
5 podcasts in a certain category.
Problem is my approach seems very costly:
I do a query against podcastcategory and get al lentities there
filtered by my category property.
and i get all podcasts.
then I would have to sort them in my app by addedDate.
I feel that something is wrong, maybe my query or my data modelling. I
would appreciate any advice or links to set me to the right direction.
cheers,
Gabi
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