public function testPrevious()
{
$core = $this->createCore();
$linkHelper = new A_Pagination_Helper_Link($core, new MockUrlHelper());
$core->setCurrentPage(1);
$this->assertEqual($linkHelper->previous('previous'), '');
$this->assertEqual($linkHelper->previous(), '');
$linkHelper->alwaysShowPreviousNext(true);
$this->assertEqual($linkHelper->previous('previous'), '<a href="foo">previous</a> ');
$this->assertEqual($linkHelper->previous(), '<a href="foo">1</a> ');
$core->setCurrentPage(8);
$this->assertEqual($linkHelper->previous('previous'), '<a href="foo">previous</a> ');
$this->assertEqual($linkHelper->previous(), '<a href="foo">7</a> ');
}
// create a data object that has the interface needed by the Pager object
$datasource = new Datasource($myarray);
// create a request processor to set pager from GET parameters
$pager = new A_Pagination_Request($datasource);
// set range (number of links on either side of current page) and process core based on request
$pager->setRangeSize(3)->process();
// create a new link helper
$link = new A_Pagination_Helper_Link($pager);
// create a new order link helper
$order = new A_Pagination_Helper_Order($pager, $url, array('' => 'Row', 'title' => 'Title', 'month' => 'Month'));
// retrieve items on current page
$rows = $pager->getItems();
// display the paging links ... should this go in a template?
$links = '';
$links .= $link->first('First');
$links .= $link->previous('Previous');
$links .= $link->range();
$links .= $link->next('Next');
$links .= $link->last('Last');
// display the data
echo "<div>{$links}</div>";
echo '<table border="1">';
echo '<tr><th>' . $order->render() . '</th></tr>';
$n = 1;
foreach ($rows as $value) {
echo '<tr>';
echo '<td>' . $n++ . '.</td><td>' . $value['title'] . '</td><td>' . $value['month'] . '</td>';
echo '</tr>';
}
echo '</table>';
echo "<div>{$links}</div>";
