Template and Layout Considerations
When you look at a Joomlatools component view your are seeing the output of a template. The template system follows the same rules as the Joomla CMS does, but does a good deal of extra work to give our templates extra flexibility and power. We discuss some of the more Joomla-centric implications here.
Its important that we make a distinction between a
layout and a
template with regard to component views. A
layout in Joomla normally references a the entire component level view and will have an
xml file of the same root file name (everything before the first period ‘.’ in the file name) associated with it. This is what lets use choose a
layout for a menu item. A
layout is also a
template, and can have contain other templates. You can use the following to remember the distinction:
All Layouts are Templates, but not all Templates are Layouts
It is because of this that you will often see the terms used interchangeably.
Template overrides allow you to change how a component’s output is rendered without having to modify the original template files. The main benefit of this is that component upgrades won’t overwrite your modified files.
The template engine we use is similar to that of Joomla, but turbo charged! All Joomlatools templates can be overridden from within the active application template, and follow the same directory structure as standard Joomla template overrides.
In order to override a component view layout, you must create a few directories and a PHP file within the active application template directory.
The directory structure is as follows:
/templates -> template_name -> html -> com_component_name -> view_name -> layout_name.php
- template_name - this is the name of the active application template
- html - all template overrides go in an html directory
- com_component_name - this is the name of the component, e.g. com_docman, com_fileman, etc
- view_name - the name name of the view whose template is being overridden
- layout_name - the specific layout being overridden, e.g. default.html.php, list.html.php
An example override might be
/templates/beez/html/com_docman/documents/list.html.php, which overrides the
list template, in the
documents view, in the
com_docman component for pages when the application is using the
Beez template. That file’s existence tells the application that you want to use it, as opposed to the original file
Again, this allows you to modify the output of a Joomlatools component without changing the core files.
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