public
Description: simple identity map for active record. eager loading associations FTL
Clone URL: git://github.com/technoweenie/active_record_context.git
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technoweenie (author)
Sat Nov 25 22:50:21 -0800 2006
commit  2c267883690e1dfa3df5a5545537b5c86ebf1ac8
tree    30e0eda8c178b0ea0b331c63886d11bd3769520f
100644 18 lines (14 sloc) 0.686 kb
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ActiveRecordContext
===================
 
Simple ActiveRecord context for caching AR objects. It caches all records from #find queries
that aren't readonly, and that don't have eagerly loaded associations. It only looks in the context
on simple Foo.find(id) queries with no conditions. It's designed to work as an alternative to eager
loading associations. It will also help all the extra find calls for models that access their associations
in callbacks/validations.
 
It only uses the context when it's activated. To activate, you can set a controller around_filter:
 
  around_filter :set_context
  
  def set_context
    ActiveRecord::Base.with_context do
      yield
    end
  end