-
Notifications
You must be signed in to change notification settings - Fork 636
HowTo: Using CacheSweeper to Inform Updates or to Clear Caches
Oleg edited this page Nov 21, 2017
·
1 revision
You can use CacheSweepers to inform about page/site updates or to clear cache.
In Rails 4, Sweepers have been moved into a separate gem rails-observers
Their use is described here
In your comfortable_mexican_sofa.rb
# A class that is included as a sweeper to admin base controller if it's set
# You could also give a array of sweepers
config.admin_cache_sweeper = CmsAdminSweeper
Autoload this class somewhere.
class CmsAdminSweeper < ActionController::Caching::Sweeper
# observe Comfy::Cms::Page, Comfy::Cms::Layout, Comfy::Cms::Snippet
def after_create(model)
do_sweeping(model)
end
def after_update(model)
do_sweeping(model)
end
def after_destroy(model)
do_sweeping(model)
end
def do_sweeping(model)
# return unless modification is made from controller action
return false if session.blank? || assigns(:site).blank?
Rails.logger.info("CmsAdminSweeper.do_sweeping in progress...")
@model = model
@site = assigns(:site) # CmsAdminController always assigns site
# Create OtherEmail emailer to send updates
OtherEmails.message_to_admin("#{@site.hostname} cms update: #{model.inspect}").deliver
# Create your own CmsHelper to expire caches you want
CmsHelper.cms_cache_expire_for_locale()
end
end