Add “own controller” to com_users Admin Component

[Kimball31]

I'm following "How to change Joomla without Core Hacks"
Part #6 "Component with “own controller”"
https://www.jug010.nl/images/presentati ... ehacks.pdf

But, When I use my overridden form, the original controller executes, not my "own" controller. How to I get Joomla to use my "own" controller?

Below is what I have developed so far.
I have also put full copies of the 3 files on github, if you want to see the code, here: https://github.com/Kimball31/MassMail

I used the Joomla Create Template Overrides tools to override the /com_users/mail component.
That created the new file: /atum/html/com_users/mail/default.php

I made copies the controller and model, as unique filenames for my "own" controller and model.
The new files for that are:
/administrator/components/com_users/src/Model/MailIndividualModel.php
/administrator/components/com_users/src/Controller/MailIndividualController.php

I then update the "task" in the default.php form, and modified the class names and some of the methods in my "own" controller and module.

changed default.php:

Code: Select all

//from: 
<input type="hidden" name="task" value="">

//to:
<input type="hidden" name="task" value="MailIndividual">

changed /src/Model/MailIndividualModel.php:

Code: Select all

//from:
class MailModel extends AdminModel

//to:
class MailIndividualModel extends AdminModel

Changed /src/Controller/MailIndividualController.php

Code: Select all

//from:
class MailController extends BaseController

//to:
class MailIndividualController extends BaseController

I'm still missing something. The form does not execute the MailIndividualController.

[pe7er]

That's a vintage presentation! :-)
I would not use that method, that I explained in my presentation 12 years ago, anymore.

Nowadays I would create a system plugin,
copy a core Joomla Model or Controller and put that copy in my system plugin,
make the necessary changes in that copy
and load that before Joomla does (so Joomla does use your copy and does not load its own).

Note that future improvements in the Joomla core Model or Controller won't be used.
But updating Joomla won't overwrite your changes.

Another solution is to use
Obix Class Extender https://extensions.joomla.org/extension ... -extender/
for your Model or Controller overrides.

[Kimball31]

Thanks Peter.

Are there any tutorials on building a System Plugin you can recommend, that might be similar to what I am doing?

Is a Plugin and System Plugin the same thing?

[pe7er]

Plugin is the extension group, System Plugin is a type of plugins. Those system plugins are triggered with every page request.

There are other plugin groups as well that listen to different events which are triggered when rendering a page:
https://docs.joomla.org/Special:MyLangu ... gin/Events

A tutorial of how to create a Plugin for Joomla 4:
https://docs.joomla.org/J4.x:Creating_a ... for_Joomla

The Joomla's core plugins might also give you some ideas how to write and trigger your own plugins.