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filters()

Tells CFWheels to run a function before an action is run or after an action has been run.

Name	Type	Required	Default	Description
through	string	Yes		Function(s) to execute before or after the action(s).
type	string	No	before	Whether to run the function(s) before or after the action(s).
only	string	No		Pass in a list of action names (or one action name) to tell CFWheels that the filter function(s) should only be run on these actions.
except	string	No		Pass in a list of action names (or one action name) to tell CFWheels that the filter function(s) should be run on all actions except the specified ones.
placement	string	No	append	Pass in `prepend` to prepend the function(s) to the filter chain instead of appending.

// Always execute `restrictAccess` before all actions in this controller.
filters("restrictAccess");

// Always execute `isLoggedIn` and `checkIPAddress` (in that order) before all actions in this controller, except the `home` and `login` actions.
filters(through="isLoggedIn, checkIPAddress", except="home, login");