method

expire_fragment

v2.0.3 - Show latest stable - 4 notes - Class: ActionController::Caching::Fragments

expire_fragment(name, options = nil) public

Name can take one of three forms:

String: This would normally take the form of a path like "pages/45/notes"
Hash: Is treated as an implicit call to url_for, like { :controller => "pages", :action => "notes", :id => 45 }
Regexp: Will destroy all the matched fragments, example:
```
  %r{pages/\d*/notes}
```
Ensure you do not specify start and finish in the regex (^$) because the actual filename matched looks like ./cache/filename/path.cache Regexp expiration is only supported on caches that can iterate over all keys (unlike memcached).

# File actionpack/lib/action_controller/caching.rb, line 419
      def expire_fragment(name, options = nil)
        return unless perform_caching

        key = fragment_cache_key(name)

        if key.is_a?(Regexp)
          self.class.benchmark "Expired fragments matching: #{key.source}" do
            fragment_cache_store.delete_matched(key, options)
          end
        else
          self.class.benchmark "Expired fragment: #{key}" do
            fragment_cache_store.delete(key, options)
          end
        end
      end