[VuFind-Tech] Override VuFind class "Solr\Params"

[Martin F. <mf...@su...>]

We use VuFind 2.0 but installed it without taking the standard VuFind
installation scripts for user modules described in
customizing_vufind_2.0#modules.

Now we are trying to override some VuFind classes with our own PHP code.

We finally got a local cover provider running. 

To achieve this, we configured in our local config/module.config.php.

 

$config = array(

    'controllers' => array(

        'invokables' => array(

            'cover' => '[ourmodule]\Controller\CoverController',

        ),

    ),

);

 

And we copied VuFind/src/VuFind/Controller/CoverController to
[ourmodule]/src/[ourmodule]/Controller/CoverController, 

changed the namespace and the "use" line to [ourmodule]\Cover\Loader. We
then extended \VuFind\Cover\Loader in
[ourmodule]/src/[ourmodule]/Cover/Loader and were able to add a new cover
provider by simply adding a new method to this Loader class.

So far, everything worked well.

Is this solution quite the same as the standard VuFind-installation with
preparation for user modules?

 

We now want to implement "multiselect"-facets with values concatenated by OR
and therefore have to override \VuFind\Search\Solr\Params. (The necessary
changes in the file could be derived from the VuFind 1.0-Patch for
OR-Facets.)

But now we don't see how to override this class because it is not configured
in module.config.php - do we really have to override the whole tree of
controllers and classes using this class? Is there a good solution to change
this - or another random - PHP class from VuFind?

Thank you in advance.

 

Martin