[development] Extending Modules

[Nick Lewis]

Rob Barreca wrote:
> A great place to start learning about piggybacking on other modules is 
> the hook_nodeapi and hook_form_alter hooks.  Those should allow you to 
> do most of what you want. 
Personally, I'm a big fan of the functions in module.inc. See this: 
http://api.drupal.org/api/4.7/file/includes/module.inc

my guess is module_invoke is the best place for you start.

Best,
Nick Lewis
http://www.nicklewis.org
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> Benjamin Maurice wrote:
>> I very much expected to find "best practices" for extending modules, 
>> but I haven't.
>>  
>> Does anyone have any pointers to resources or advice?
>>  
>> It's great that Drupal itself is modular, but if I want to add a 
>> little something to a module that already does 90% of what I want, it 
>> seems there ought to be a standard way to do this without forking it.
>>  
>> Wrapping a module I can imagine how to do, and overriding or adding 
>> functions as needed, but it seems there could be a way to do this 
>> without having to define every function and pass it through.  At 
>> least I hope to find recommendations on how to do this.
>>  
>> Thanks for any help,
>>  
>> Ben Melançon
>> of
>> Agaric Design
>> http://agaricdesign.com/
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