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Chapter 8
[ 225 ]
JPagination is used extensively by components in the backend when displaying lists
of items. Normally we add a method called getPagination() to the model, which
deals with the items we are trying to paginate, to get a pagination object. This is an
example of such a method:
/**
* Get a pagination object
*
* @access public
* @return JPagination
*/
function getPagination()
{
if (empty($this->_pagination))
{
// import the pagination library
jimport('joomla.html.pagination');
// prepare the pagination values
$total = $this->getTotal();
$limitstart = $this->getState('limitstart');
$limit = $this->getState('limit');
// create the pagination object
$this->_pagination = new JPagination($total, $limitstart,
$limit);
}
return $this->_pagination;
}
There are three important aspects to this method. We use the attribute _pagination
to cache the object. We use the getTotal() method to determine the total number of
items. We use the getState() method to determine the number of results to display.


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