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<?php
/**
* Example of usage for HTML_Template_Sigma, block iteration
*
* PHP versions 4 and 5
*
* LICENSE: This source file is subject to version 3.01 of the PHP license
* that is available through the world-wide-web at the following URI:
* http://www.php.net/license/3_01.txt If you did not receive a copy of
* the PHP License and are unable to obtain it through the web, please
* send a note to license@php.net so we can mail you a copy immediately.
*
* @category HTML
* @package HTML_Template_Sigma
* @author Alexey Borzov <avb@php.net>
* @version CVS: $Id: example_2.php,v 1.3 2007/05/19 13:31:19 avb Exp $
* @ignore
*/
/**
* Template class
*/
require_once 'HTML/Template/Sigma.php';
// various data to substitute
$simpleAry = array('foo', 'bar', 'baz', 'quux');
$complexAry = array(
array('Error code', 'Error message', 'Reason', 'Solution'),
array('SIGMA_OK', ' ', 'Everything went OK', ' '),
array('SIGMA_BLOCK_NOT_FOUND', 'Cannot find block \'%s\'', 'Tried to access block that does not exist', 'Either add the block or fix the block name'),
array('SIGMA_BLOCK_DUPLICATE', 'The name of a block must be unique within a template. Block \'%s\' found twice.', 'Tried to load a template with several blocks sharing the same name', 'Get rid of one of the blocks or rename it')
);
$menuAry = array(
'foo' => 'First menu element',
'bar' => 'Second menu element',
'baz' => 'Another menu element',
'quux' => 'Yet another menu element'
);
$menuSelected = 'bar';
$touchAry = array(
array('apples', 10),
false,
array('oranges', 20)
);
$hideAry = array(
array('restricted' => false, 'data' => array('item_id' => 'foo', 'item_title' => 'Some data')),
array('restricted' => true, 'data' => array('item_id' => 'bar', 'item_title' => 'More data')),
array('restricted' => true, 'data' => array('item_id' => 'baz', 'item_title' => 'Even more data')),
array('restricted' => false, 'data' => array('item_id' => 'quux', 'item_title' => 'Still even more data'))
);
// instantiate the template object, templates will be loaded from the
// 'templates' directory, no caching will take place
$tpl =& new HTML_Template_Sigma('./templates');
// No errors are expected to happen here
$tpl->setErrorHandling(PEAR_ERROR_DIE);
// default behaviour is to remove unknown variables and empty blocks
// from the template
$tpl->loadTemplateFile('example_2.html');
// 1. Simple block iteration
$tpl->setCurrentBlock('list');
foreach ($simpleAry as $value) {
$tpl->setVariable('list_item', $value);
$tpl->parseCurrentBlock();
}
// 2. Nested block iteration
foreach ($complexAry as $inner) {
foreach ($inner as $value) {
$tpl->setVariable('table_item', $value);
// first we parse the innermost block
$tpl->parse('table_cell');
}
// then we parse the outer block
$tpl->parse('table_row');
}
// 3. Menu-like structures
foreach ($menuAry as $url => $title) {
// please note that only one inner block will be shown
// the other one will be considered empty and automatically removed
if ($menuSelected == $url) {
// we don't set menu_url to prevent menu_normal from appearing
// another possible approach here is to use hideBlock()
$tpl->setVariable('menu_title', $title);
$tpl->parse('menu_selected');
} else {
$tpl->setVariable(array(
'menu_url' => $url,
'menu_title' => $title
));
$tpl->parse('menu_normal');
}
// once again, the outer block is parsed after the inner
$tpl->parse('menu');
}
// 4. Methods to manually control showing/removal of blocks
// touchBlock() example
foreach ($touchAry as $item) {
if (is_array($item)) {
$tpl->setVariable(array(
'touch_stuff' => $item[0],
'touch_quantity' => $item[1]
));
} else {
$tpl->touchBlock('empty_row');
}
$tpl->parse('touch_row');
}
// hideBlock() example
foreach ($hideAry as $item) {
$tpl->setVariable($item['data']);
if ($item['restricted']) {
$tpl->hideBlock('edit_link');
}
$tpl->parse('hide_item');
}
// 5. Using get() to move blocks around
// This one is pretty simple. Note that by default get() does not clear the
// original block, so a copy will be created. If you want to move the block,
// pass true as a second parameter to get()
$tpl->parse('list_block');
$tpl->setVariable('duplicate', $tpl->get('list_block'));
// output the results
$tpl->show();
?>
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