search for: avg_cach

...tes''. In both states, and counties, there''s a column named ''schools_total''. I don''t use Rails built in counter cache because schools don''t belong directly to states. So I want to implement two features. Inside counties: counter_cache :schools avg_cache :schools Inside states: counter_cache :schools, :through => counties avg_cache :schools, :through => counties The first case is straightforward, but on the second case, the "caches" would need to get updated whenever the counties table is modified (apart from when the schools ta...