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1. What exactly is is a filter chain?
2. In the particular example given, does "invoking its run() method" mean invoking the "account" action's run method?
3. Where can I find the "account" action? Is it in the yii_cms? Should I search for "actionAccount" as a string within the files in the Protected folder?
4. If the "Account" action is hypothetical, would it really have a method called "run()"? If not, what is a run() method?
Quoting from the book"
"The method needs to take one parameter, which will be a filter chain. This variable will be used to allow the action to take place by invoking its run() method (i.e., continue the filtering and such)."
The example given is: