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L4lucas

Could someone explain to me how the hooks and listeners system works? There does not seem to be any working examples of it within the source code right now.

AlexC

The aliases and page module both listen for hooks that are called, IIRC there are many others as well. Basically, a hook is called from within a library (or else where, but it is normally a core library) and with given arguments. A module can then listen for this hook call, and can do something with the provided arguments and return a response. Depending on what the library does, it can take that response from all the listeners and merge that in with some other code.

Hooks are normally in the form of: bootstrap_loaded, view_output (taking the Aliases listeners file as an example here), and then the method that will be called is 'hookBootstrapLoaded' (basically converted to camel case).

L4lucas

Ok, I have everything working except for a few little kinks:

* How can I extract the current controller title from within the listener?
* Is there any internal Zulu method that can give me the current URL?
* I'm getting a spew of PHP error messages unrelated to my module, the most persistent of which is:

( ! ) Warning&#58; DOMDocument&#58;&#58;load() &#91;domdocument&#46;load&#93;&#58; ID article-1 already defined in /home/lucas/Programming/tangocms-trunk/tmp/rss/article-latest&#46;xml, line&#58; 29 in /home/lucas/Programming/tangocms-trunk/application/libraries/Rss&#46;php on line 64
Call Stack
#	Time	Memory	Function	Location
1	0&#46;0003	141448	{main}( )	&#46;&#46;/index&#46;php&#58;0
2	0&#46;0194	2340376	require( '/home/lucas/Programming/tangocms-trunk/application/zula/bootstrap&#46;php' )	&#46;&#46;/index&#46;php&#58;102
3	0&#46;0748	5249240	Controller-&gt;dispatch( )	&#46;&#46;/bootstrap&#46;php&#58;113
4	0&#46;0748	5249240	Hooks&#58;&#58;notifyAll( )	&#46;&#46;/Controller&#46;php&#58;196
5	0&#46;0749	5249240	call_user_func_array ( )	&#46;&#46;/Hooks&#46;php&#58;127
6	0&#46;0749	5249240	Rss_hooks-&gt;hookCntrlrPreDispatch( )	&#46;&#46;/Hooks&#46;php&#58;0
7	0&#46;0788	5589344	Rss-&gt;__construct( )	&#46;&#46;/listeners&#46;php&#58;195
8	0&#46;0789	5589344	DOMDocument-&gt;load( )	&#46;&#46;/Rss&#46;php&#58;64

AlexC

For the controller title, it would depend on which hook you are listening for, what is the name of the hook you're using? Current URL can be got via:

$this-&gt;_router-&gt;getCurrentUrl();

However, from the module you're working on I assume you're after the full URL (ie, including http://)? I'm just about to add a new method to the routers so that data is possible. Weird about the PHP errors, I'll try and see what is causing it =)

L4lucas

Thanks for the help with the URL, I think I can do a temporary workaround until the new _router function is done.

I need to get the title of whatever controller is being currently displayed in the main content area to use a as a title for the submission to the different news sites.

I dont know why im getting that error, I've had it since I've installed tango /trunk.

Thanks for the help Alex, I'll have the module done for tonight.

AlexC

As of /trunk r2260 Router_Base::getCurrentUrl() will now return the full URL (so including http:// and the hostname), and it's old behaviour is now in Router_Base::getRequestPath(). So $this->_router->getCurrentUrl() is now what you need =).

The title depends on the hook you're using, since if it is a hook before the controller has loaded - you wont be able to get it. What is the name of the hook you're using, I assume view_output_bottom?

L4lucas

Yes it is currently using controller output bottom... I can't think of a case where anything else would be needed.

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