Re: Callbacks with ContextSwitch Action Helper

Thanks, Matthew.

I apologize, an exception *will* be thrown if unable to call the callback, but I was looking at a cached version of the page :(

-Hector

Matthew Weier O'Phinney wrote:

-- Hector Virgen <djvirgen-Re5JQEeQqe8AvxtiuMwx3w@xxxxxxxxxxxxxxxx> wrote
(on Monday, 21 July 2008, 09:44 AM -0700):
  

Can someone please show me an example of how to use callbacks with the
ContextSwitch action helper? I have read the documentation at http://
framework.zend.com/manual/en/zend.controller.actionhelpers.html#
zend.controller.actionhelpers.contextswitch.custom but there are no examples.

I have specified bogus callbacks in my $spec array hoping to throw a
descriptive exception but none was thrown. Here is my test code:

    // From within an action controller
    public function init()
    {
        $contextSwitch = $this->_helper->getHelper('contextSwitch');
       
        $context = 'text';
        $spec = array(
            'suffix'        => 'text',
            'headers'       => array(
                'Content-type' => 'text/plain'
            ),
            'callbacks'     => array(
                'init'          => 'testinit'
                'post'          => 'testpost'
            )
        );
       
        $contextSwitch->addContext($context, $spec);
        $contextSwitch->addActionContext('view', 'text')
                      ->initContext();
    }

If the above code looks correct, where should I be defining my callbacks? Are
they global functions, or methods of the current action controller, or methods
of the ContextSwitch helper? Thanks!
    

Here's how it looks for them:

  * If the callback is a string and is a method in the ContextSwitch
    class (or the class you're extending it with), that will be called.

  * If the callback is a string and is an existing function, that will
    be called.

  * If the callback is an array, then the array will be passed to
    call_user_func() (the array should contain two members, the class or
    object, and the method to call).