资 源 简 介
ModelCache to use on an ActiveRecord class to cache method calls. Example:
```
Class X < ActiveRecord::Base
def heavy_calculation(a, b)
"result #{self.x} #{a} #{b}"
end
include ModelCacheHelper
cache_method :heavy_calculation
end
```
The created method X.heavy_calculation(id, arg1, arg2) will then check if the
result is cached, otherwise it will do X.find(1).heavy_calculation(arg1, arg2)
and cache the result. Calling heavy_calculation on an instance of X will also
cache the result.
The instance method expire_cache, will expire the cache for that object. It
can be used with an optional argument, expire_cache(method), to only expire
the cache for a certain method.
Non-string result will be serialized with YAML and automatically deserialized
when loaded.
The extra argument kan be used to define extra parameters to the find-request.
cache_method :heavy_calculation, :include => "
