* @package xos_opal
* @subpackage xos_opal_Smarty
* @since 2.0.14
* @version $Id: compiler.foreachq.php 3538 2009-08-31 14:16:34Z trabis $
*/
/**
* Quick foreach template plug-in
*
* This plug-in works as a direct replacement for the original Smarty
* {@link http://smarty.php.net/manual/en/language.function.foreach.php foreach} function.
*
* The difference with foreach is minimal in terms of functionality, but can boost your templates
* a lot: foreach duplicates the content of the variable that is iterated, to ensure non-array
* variables can be specified freely. This implementation does not do that, but as a consequence
* requires that the variable you specify in the from parameter is an array or
* (when using PHP5) an object. Check the difference between the code generated by foreach
* and foreachq to understand completely.
*
* Note: to use foreachq, only the opening tag has to be replaced. The closing tab still
* remains {/foreach}
*
*
* // Iterate, slow version
* {foreach from=$array item=elt}
* {$elt}
* {/foreach}
* // Iterate, fast version
* {foreachq from=$array item=elt}
* {$elt}
* {/foreach}
*
*/
function smarty_compiler_foreachq( $argStr, &$comp ) {
$comp->_push_tag('foreach');
$attrs = $comp->_parse_attrs( $argStr, false );
$arg_list = array();
if (empty($attrs['from'])) {
return $comp->_syntax_error("foreachq: missing 'from' attribute", E_USER_ERROR, __FILE__, __LINE__);
}
$from = $attrs['from'];
if (empty($attrs['item'])) {
return $comp->_syntax_error("foreachq: missing 'item' attribute", E_USER_ERROR, __FILE__, __LINE__);
}
$item = $comp->_dequote($attrs['item']);
if (!preg_match('~^\w+$~', $item)) {
return $comp->_syntax_error("'foreachq: item' must be a variable name (literal string)", E_USER_ERROR, __FILE__, __LINE__);
}
if (isset($attrs['key'])) {
$key = $comp->_dequote($attrs['key']);
if (!preg_match('~^\w+$~', $key)) {
return $comp->_syntax_error("foreachq: 'key' must to be a variable name (literal string)", E_USER_ERROR, __FILE__, __LINE__);
}
$key_part = "\$this->_tpl_vars['$key'] => ";
} else {
$key = null;
$key_part = '';
}
if (isset($attrs['name'])) {
$name = $attrs['name'];
} else {
$name = null;
}
$output = '';
//$output .= "\$_from = $from; if (!is_array(\$_from) && !is_object(\$_from)) { settype(\$_from, 'array'); }";
if (isset($name)) {
$foreach_props = "\$this->_foreach[$name]";
$output .= "{$foreach_props} = array('total' => count($from), 'iteration' => 0);\n";
//$output .= "{$foreach_props} = array('total' => count(\$_from), 'iteration' => 0);\n";
$output .= "if ({$foreach_props}['total'] > 0):\n";
$output .= " foreach ($from as $key_part\$this->_tpl_vars['$item']):\n";
//$output .= " foreach (\$_from as $key_part\$this->_tpl_vars['$item']):\n";
$output .= " {$foreach_props}['iteration']++;\n";
} else {
$output .= "if (count($from)):\n";
$output .= " foreach ($from as $key_part\$this->_tpl_vars['$item']):\n";
//$output .= "if (count(\$_from)):\n";
//$output .= " foreach (\$_from as $key_part\$this->_tpl_vars['$item']):\n";
}
//$output .= '';
return $output;
}
?>