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/framework/vendor/smarty2/lib/internals/core.load_resource_plugin.php

http://zoop.googlecode.com/
PHP | 74 lines | 38 code | 12 blank | 24 comment | 9 complexity | 08d531fb688eed7253b316b11436e512 MD5 | raw file
 1<?php
 2/**
 3 * Smarty plugin
 4 * @package Smarty
 5 * @subpackage plugins
 6 */
 7
 8/**
 9 * load a resource plugin
10 *
11 * @param string $type
12 */
13
14// $type
15
16function smarty_core_load_resource_plugin($params, &$smarty)
17{
18    /*
19     * Resource plugins are not quite like the other ones, so they are
20     * handled differently. The first element of plugin info is the array of
21     * functions provided by the plugin, the second one indicates whether
22     * all of them exist or not.
23     */
24
25    $_plugin = &$smarty->_plugins['resource'][$params['type']];
26    if (isset($_plugin)) {
27        if (!$_plugin[1] && count($_plugin[0])) {
28            $_plugin[1] = true;
29            foreach ($_plugin[0] as $_plugin_func) {
30                if (!is_callable($_plugin_func)) {
31                    $_plugin[1] = false;
32                    break;
33                }
34            }
35        }
36
37        if (!$_plugin[1]) {
38            $smarty->_trigger_fatal_error("[plugin] resource '" . $params['type'] . "' is not implemented", null, null, __FILE__, __LINE__);
39        }
40
41        return;
42    }
43
44    $_plugin_file = $smarty->_get_plugin_filepath('resource', $params['type']);
45    $_found = ($_plugin_file != false);
46
47    if ($_found) {            /*
48         * If the plugin file is found, it -must- provide the properly named
49         * plugin functions.
50         */
51        include_once($_plugin_file);
52
53        /*
54         * Locate functions that we require the plugin to provide.
55         */
56        $_resource_ops = array('source', 'timestamp', 'secure', 'trusted');
57        $_resource_funcs = array();
58        foreach ($_resource_ops as $_op) {
59            $_plugin_func = 'smarty_resource_' . $params['type'] . '_' . $_op;
60            if (!function_exists($_plugin_func)) {
61                $smarty->_trigger_fatal_error("[plugin] function $_plugin_func() not found in $_plugin_file", null, null, __FILE__, __LINE__);
62                return;
63            } else {
64                $_resource_funcs[] = $_plugin_func;
65            }
66        }
67
68        $smarty->_plugins['resource'][$params['type']] = array($_resource_funcs, true);
69    }
70}
71
72/* vim: set expandtab: */
73
74?>