The static_cache plugin is designed for models that are not modified at all in production use cases, or at least where modifications to them would usually coincide with an application restart. When loaded into a model class, it retrieves all rows in the database and staticly caches a ruby array and hash keyed on primary key containing all of the model instances. All of these instances are frozen so they won't be modified unexpectedly.
The caches this plugin creates are used for the following things:
Primary key lookups (e.g. Model)
Model.map calls without an argument
Model.to_hash calls without an argument
# Cache the AlbumType class staticly AlbumType.plugin :static_cache
Classes and Modules
Public Class methods
Populate the static caches when loading the plugin.
# File lib/sequel/plugins/static_cache.rb, line 24 def self.configure(model) model.send(:load_cache) end