Re: Possible to create models programatically?

>
> Why not use the facilities for sharding that are built in?
>
> Database routers [1] are designed to allow you to have a single model
> definition, but decide which database connection is used at runtime
> based on properties of the objects involved.
>
> [1]http://docs.djangoproject.com/en/dev/topics/db/multi-db/#automatic-da...
>

I must have misunderstood the database routers then.

From the documentation:

"db_for_read(model, **hints)

Suggest the database that should be used for read operations for
objects of type model."

I thought that means that all objects of type model must be routed to
the same database.

Could you give me an example of a database router that would -
- first look at the type of the object, if it's of the type Tweet then
look at the userid of the Tweet's author, take a modulo N of the
userid, and then routes to DB0 if the modulo is 0, DB1 if the modulo
is 1, etc?

Thanks

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