How to add custom filters to components
From Joomla! Documentation
Revision as of 17:03, 19 January 2012 by Doub1ejack
This how-to is intended to give a decent description on how to add dropdown form elements to the backend admin page for a component. I worked out the steps primarily on my own by dissecting/replicating the Banners component. In particular, the 'banners' section of com_banners - not! to be confused with 'banner').
This tutorial was built on code tested in Joomla 1.7 only.
In general, the process of adding these fields breaks down into the following steps:
- Creating the class that will generate the form element
- Adapting the view to display the form element
- Adapting the model to retrieve data from DB & to set submission values in the Joomla 'state'
Extend JFormFieldList (models / fields / fieldname.php)
Modify Model (models / zzz.php)
Modify View (views / zzz / view.html.php)
Modify Template (views / zzz / tmpl / default.php)