smarty/plugins/function.cycle.php
author Dan
Mon, 01 Sep 2008 17:03:44 -0400
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parent 0 c63de9eb7045
permissions -rw-r--r--
Toned down the "login success" message's color a bit
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<?php
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/**
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 * Smarty plugin
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 * @package Smarty
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 * @subpackage plugins
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 */
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/**
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 * Smarty {cycle} function plugin
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 *
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 * Type:     function<br>
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 * Name:     cycle<br>
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 * Date:     May 3, 2002<br>
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 * Purpose:  cycle through given values<br>
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 * Input:
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 *         - name = name of cycle (optional)
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 *         - values = comma separated list of values to cycle,
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 *                    or an array of values to cycle
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 *                    (this can be left out for subsequent calls)
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 *         - reset = boolean - resets given var to true
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 *         - print = boolean - print var or not. default is true
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 *         - advance = boolean - whether or not to advance the cycle
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 *         - delimiter = the value delimiter, default is ","
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 *         - assign = boolean, assigns to template var instead of
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 *                    printed.
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 *
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 * Examples:<br>
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 * <pre>
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 * {cycle values="#eeeeee,#d0d0d0d"}
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 * {cycle name=row values="one,two,three" reset=true}
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 * {cycle name=row}
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 * </pre>
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 * @link http://smarty.php.net/manual/en/language.function.cycle.php {cycle}
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 *       (Smarty online manual)
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 * @author Monte Ohrt <monte at ohrt dot com>
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 * @author credit to Mark Priatel <mpriatel@rogers.com>
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 * @author credit to Gerard <gerard@interfold.com>
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 * @author credit to Jason Sweat <jsweat_php@yahoo.com>
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 * @version  1.3
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 * @param array
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 * @param Smarty
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 * @return string|null
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 */
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function smarty_function_cycle($params, &$smarty)
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{
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    static $cycle_vars;
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    $name = (empty($params['name'])) ? 'default' : $params['name'];
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    $print = (isset($params['print'])) ? (bool)$params['print'] : true;
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    $advance = (isset($params['advance'])) ? (bool)$params['advance'] : true;
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    $reset = (isset($params['reset'])) ? (bool)$params['reset'] : false;
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    if (!in_array('values', array_keys($params))) {
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        if(!isset($cycle_vars[$name]['values'])) {
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            $smarty->trigger_error("cycle: missing 'values' parameter");
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            return;
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        }
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    } else {
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        if(isset($cycle_vars[$name]['values'])
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            && $cycle_vars[$name]['values'] != $params['values'] ) {
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            $cycle_vars[$name]['index'] = 0;
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        }
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        $cycle_vars[$name]['values'] = $params['values'];
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    }
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    $cycle_vars[$name]['delimiter'] = (isset($params['delimiter'])) ? $params['delimiter'] : ',';
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    if(is_array($cycle_vars[$name]['values'])) {
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        $cycle_array = $cycle_vars[$name]['values'];
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    } else {
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        $cycle_array = explode($cycle_vars[$name]['delimiter'],$cycle_vars[$name]['values']);
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    }
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    if(!isset($cycle_vars[$name]['index']) || $reset ) {
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        $cycle_vars[$name]['index'] = 0;
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    }
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    if (isset($params['assign'])) {
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        $print = false;
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        $smarty->assign($params['assign'], $cycle_array[$cycle_vars[$name]['index']]);
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    }
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    if($print) {
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        $retval = $cycle_array[$cycle_vars[$name]['index']];
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    } else {
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        $retval = null;
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    }
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    if($advance) {
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        if ( $cycle_vars[$name]['index'] >= count($cycle_array) -1 ) {
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            $cycle_vars[$name]['index'] = 0;
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        } else {
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            $cycle_vars[$name]['index']++;
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        }
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    }
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    return $retval;
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}
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/* vim: set expandtab: */
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?>