smarty/plugins/function.html_checkboxes.php
author Dan
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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 {html_checkboxes} function plugin
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 *
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 * File:       function.html_checkboxes.php<br>
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 * Type:       function<br>
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 * Name:       html_checkboxes<br>
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 * Date:       24.Feb.2003<br>
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 * Purpose:    Prints out a list of checkbox input types<br>
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 * Input:<br>
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 *           - name       (optional) - string default "checkbox"
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 *           - values     (required) - array
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 *           - options    (optional) - associative array
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 *           - checked    (optional) - array default not set
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 *           - separator  (optional) - ie <br> or &nbsp;
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 *           - output     (optional) - the output next to each checkbox
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 *           - assign     (optional) - assign the output as an array to this variable
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 * Examples:
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 * <pre>
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 * {html_checkboxes values=$ids output=$names}
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 * {html_checkboxes values=$ids name='box' separator='<br>' output=$names}
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 * {html_checkboxes values=$ids checked=$checked separator='<br>' output=$names}
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 * </pre>
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 * @link http://smarty.php.net/manual/en/language.function.html.checkboxes.php {html_checkboxes}
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 *      (Smarty online manual)
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 * @author     Christopher Kvarme <christopher.kvarme@flashjab.com>
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 * @author credits to Monte Ohrt <monte at ohrt dot com>
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 * @version    1.0
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 * @param array
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 * @param Smarty
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 * @return string
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 * @uses smarty_function_escape_special_chars()
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 */
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function smarty_function_html_checkboxes($params, &$smarty)
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{
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    require_once $smarty->_get_plugin_filepath('shared','escape_special_chars');
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    $name = 'checkbox';
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    $values = null;
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    $options = null;
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    $selected = null;
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    $separator = '';
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    $labels = true;
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    $output = null;
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    $extra = '';
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    foreach($params as $_key => $_val) {
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        switch($_key) {
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            case 'name':
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            case 'separator':
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                $$_key = $_val;
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                break;
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            case 'labels':
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                $$_key = (bool)$_val;
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                break;
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            case 'options':
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                $$_key = (array)$_val;
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                break;
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            case 'values':
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            case 'output':
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                $$_key = array_values((array)$_val);
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                break;
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            case 'checked':
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            case 'selected':
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                $selected = array_map('strval', array_values((array)$_val));
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                break;
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            case 'checkboxes':
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                $smarty->trigger_error('html_checkboxes: the use of the "checkboxes" attribute is deprecated, use "options" instead', E_USER_WARNING);
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                $options = (array)$_val;
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                break;
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            case 'assign':
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                break;
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            default:
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                if(!is_array($_val)) {
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                    $extra .= ' '.$_key.'="'.smarty_function_escape_special_chars($_val).'"';
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                } else {
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                    $smarty->trigger_error("html_checkboxes: extra attribute '$_key' cannot be an array", E_USER_NOTICE);
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                }
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                break;
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        }
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    }
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    if (!isset($options) && !isset($values))
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        return ''; /* raise error here? */
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    settype($selected, 'array');
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    $_html_result = array();
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    if (isset($options)) {
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        foreach ($options as $_key=>$_val)
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            $_html_result[] = smarty_function_html_checkboxes_output($name, $_key, $_val, $selected, $extra, $separator, $labels);
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    } else {
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        foreach ($values as $_i=>$_key) {
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            $_val = isset($output[$_i]) ? $output[$_i] : '';
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            $_html_result[] = smarty_function_html_checkboxes_output($name, $_key, $_val, $selected, $extra, $separator, $labels);
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        }
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    }
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    if(!empty($params['assign'])) {
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        $smarty->assign($params['assign'], $_html_result);
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    } else {
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        return implode("\n",$_html_result);
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    }
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}
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function smarty_function_html_checkboxes_output($name, $value, $output, $selected, $extra, $separator, $labels) {
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    $_output = '';
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    if ($labels) $_output .= '<label>';
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    $_output .= '<input type="checkbox" name="'
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        . smarty_function_escape_special_chars($name) . '[]" value="'
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        . smarty_function_escape_special_chars($value) . '"';
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    if (in_array((string)$value, $selected)) {
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        $_output .= ' checked="checked"';
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    }
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    $_output .= $extra . ' />' . $output;
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    if ($labels) $_output .= '</label>';
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    $_output .=  $separator;
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    return $_output;
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}
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?>