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Add a note to clarify placement of before_action #63

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6 changes: 6 additions & 0 deletions README.md
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Expand Up @@ -74,6 +74,9 @@ should be cached, similar to how you use them with `before_action`.
As of Rails 3.0, you can also pass `:expires_in` with a time
interval (in seconds) to schedule expiration of the cached item.

Finally, note that only `before_action` filters that are listed
before `caches_action` will be run when serving from the cache.

The following example depicts some of the points made above:

```ruby
Expand All @@ -97,6 +100,9 @@ class ListsController < ApplicationController

# custom cache path with a symbol
caches_action :feed, cache_path: :user_cache_path

# this filter will not run when serving from the cache
before_action :set_some_value_in_session

protected
def user_cache_path
Expand Down