#14 Performing Calculations on Models
Apr 04, 2007 | 2 minutes | Active Record
Did you know ActiveRecord provides class methods for performing calculations on models? You can even use these methods through associations.
Model Caching (revised)
Caching at a low level is a great option when the view is too dynamic to cache and you need something flexible that can work anywhere in the application. Here I show a variety of ways to use Rails.cache with Active Record.
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Batch API Requests
Here I demonstrate how to perform bulk API operations though a single request using Rack middleware. This is great if you need to trigger multiple actions at once such as if the user goes offline.
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Handling Exceptions (revised)
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Fast Tests
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