From: Jeremy Kemper <jeremy@...>
Date: 2005-07-05T11:52:05+09:00
Subject: Re: ANN: ContextualService 0.1.0

On Jul 4, 2005, at 4:35 PM, sera@fhwang.net wrote:
> So, where in AR you might write:
>
>   next_angle = Company.find_first "name = 'Next Angle'"

The dynamic finder methods are more easily mockable.  E.g.
   Company.find_by_name 'Next Angle'

I run my unit tests against an in-memory SQLite database rather than  
mock everything; I wish that could be improved.  Tests run in under  
10 sec, but that's still too long.

> Query inference has a few other cool applications. For one thing,
> Lafcadio caches those query results in memory, and can do some simple
> calculations to see if one query is a subset of a previous one. So, if
> you run these three queries:

Cool!  This assumes transactions are serialized (no dirty reads); can  
you detect whether caching is safe?

Best,
jeremy