I am a beginner to DataStore and I am wondering how I should use it to achieve what I want to do.
For example, my app needs to keep track of customers and all their purchases. Coming from relational database, I can achieve this by creating [Customers] and [Purchases] table. In DataStore, I can make [Customers] and [Purchases] kinds. Where I am struggling is the structure of the [Purchases] kind. If I make [Purchases] as the child of [Customers] kind, would there be one entity in [Customers] and one entity in [Purchases] that share the same key? Does this mean in side of this [Purchases] entity, I would have a property that just keeps increasing for each purchase they make? Or would I have one [Purchases] entity for each purchase they make and in each of these entities I would have a property that points to a entity in [Customers] kind? How does DataStore perform in these scenarios? -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To unsubscribe from this group and stop receiving emails from it, send an email to google-appengine+unsubscr...@googlegroups.com. To post to this group, send email to google-appengine@googlegroups.com. Visit this group at http://groups.google.com/group/google-appengine. For more options, visit https://groups.google.com/groups/opt_out.
