[support] can i hook a hook?

[Steve Kessler]

>From a different approach you may also just want to do this with views or
PHP in a block and then you can customize anything you want without
modifying a module.

-Steve

On Fri, Dec 10, 2010 at 2:12 AM, sebastian chedal <inforazor at gmail.com>wrote:

> Thanks for your input, a few final questions about this before i give up on
> trying to be fancy.
>
> 1. Is it not possible to "extend" a module with a custom module? Kinda like
> if I was object programing? Or is hook_alter also required for this?
>
> 2. Is there any documentation I can read about making a module able to be
> altered? What changes need to be made to allow this?
>
> 3. The nodeasblock.module does have several nodeasblock_*_form_alter
> functions in it, is it somehow possible to preprocess some of these in a
> theme or in a custom module, to add the new checkbox to toggle the link
> being an href yes/no, and to then call a different function [from my custom
> module] to accomplish this?
>
> Even if this last option is not the best solution [since I should probably
> submit a patch to the module with the new checkbox as part of the module's
> code], I'm curious to just know IF this is possible; so that when I
> encounter more complicated problems, where what I need to do isn't
> necessarily something that anyone else is ever going to want, and I still
> want to make sure that if the module is updated that my extension to it
> still (probably) works.
>
> While I appreciate your comment that I could just "leave it" I'm also
> trying to learn here at the same time the more advanced aspects of drupal at
> this stage since I am feeling ready for it! At the moment the best solution
> I have is using PHP at the block-nodeasblock.tpl.php level to do a string
> replace and strip the a href; but that feels like "wearing a bullet vest"
> instead of just "getting rid of the gun".
> :-)
>
> Until now I've been depending on a lot of other Drupal people to handle
> bugs/features when they get hardcore but I really want to get a better
> understanding for how to modify / extend / hook into and alter modules. It's
> hard finding a lot of good information on this, so I'm always open to some
> good links too!
>
> Thanks again!
> Really appreciated.
>
> Sebastian.
>
>
> On Thu, Dec 9, 2010 at 8:55 PM, Larry Garfield <larry at garfieldtech.com>wrote:
>
>> Unfortunately in that case it doesn't look like there's a way in.  You'll
>> need
>> to either hack the module or submit a patch back to the maintainer to make
>> it
>> more flexible.  The latter approach is generally preferred. :-)
>>
>> Or just decide that having the link there doesn't actually hurt anything
>> so
>> it's not worth fussing over.  That's also a viable option far more often
>> than
>> people realize.
>>
>> --Larry Garfield
>>
>> On Thursday, December 09, 2010 10:17:12 pm sebastian wrote:
>> > Hi Larry,
>> >
>> > Thank you so much for replying to my query.
>> >
>> > So if my contrib module doesn't offer an _alter() (and it does not) my
>> > only option is to hack the module? [or worse, use jquery to alter the
>> > output]
>> >
>> > The module is question is nodeasblock and the function implements:
>> >
>> > nodeasblock_block ($op = 'list', $delta = 0)
>> >
>> > It makes theming decisions in it's operation, which I need to alter.
>> > Namely it decides that the $node->title should be:
>> >
>> > l($node->title, 'node/'. $node->nid)
>> >
>> > I need to strip the <a href> since I don't want my block to be clickable
>> > and lead to itself.
>> >
>> > In other words:
>> >
>> > 'subject' => l($node->title, 'node/'. $node->nid),
>> >
>> > will just become
>> >
>> >   'subject' => $node->title,
>> >
>> > I can hack the module, but that seems like a "no-no"
>> >
>> > Thanks!
>> >
>> > Sebastian.
>> >
>> > On 2010-12-09 8:04 PM, Larry Garfield wrote:
>> > > Some hooks that offer definitions, like hook_menu(), will have a
>> > > corresponding alter hook like hook_menu_alter().  There is no alter
>> hook
>> > > for hook_block(), though.  That said, there is an alter hook for all
>> > > forms, hook_form_alter(). So if you're manipulating a form you may be
>> > > able to do so that way.
>> > >
>> > > --Larry Garfield
>> > >
>> > > On Thursday, December 09, 2010 9:22:48 pm sebastian wrote:
>> > >> Hello,
>> > >>
>> > >> Having a terrible time finding anything about this, and all I can
>> find
>> > >> on Drupal.org is the API for hooks, which doesn't really explain
>> enough.
>> > >>
>> > >> My question is, if there is a contrib module with an implementation
>> of:
>> > >>
>> > >> hook_block()
>> > >>
>> > >> such as:
>> > >>
>> > >> nodeasblock_block()
>> > >>
>> > >> How can I change the values inside of this function, without changing
>> > >> the function directly?
>> > >>
>> > >> can I write something in template.php to catch the nodeasblock_block
>> > >> hook and then change the values in it?
>> > >>
>> > >> Or do I need to change the nodeasblock module directly? perhaps
>> adding
>> > >> the feature as a full blown check box addition or just hack it??
>> > >>
>> > >> Thanks for any help you can provide me!
>> > >>
>> > >> kindly,
>> > >>
>> > >> Sebastian.
>> --
>> [ Drupal support list | http://lists.drupal.org/ ]
>>
>
>
> --
> [ Drupal support list | http://lists.drupal.org/ ]
>



-- 
Steve Kessler
Owner and Lead Consultant
Denver DataMan, LLC
303-587-4428
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