1: <?php
 2: /**
 3:  * WsUrl
 4:  * Constructs URLs.
 5:  *
 6:  * Example usage:
 7:  *
 8:  * <code>
 9:  * // returns '/server_address/site/index/'
10:  * // returns '/server_address/index.php?request=site/index'
11:  * // servers.
12:  * $url = WsUrl::link('site', 'index');
13:  *
14:  * // returns '/server_address/site/edit_item/id=2/'
15:  * // returns '/server_address/index.php?request=site/index&id=2'
16:  * $url = WsUrl::link('site', 'index', array('id'=>2));
17:  *
18:  * // points to file '/server_name/public/js/jquery.min.js'
19:  * $asset = WsUrl::asset('js/jquery.min.js');
20:  * </code>
21:  * 
22:  */
23: class WsUrl
24: {
25:     /**
26:      * Constructs URL address.
27:      *
28:      * If web page is served by Apache HTTP server then uses mod_rewrite and
29:      * .htaccess file to construct prety urls. On other web servers returns
30:      * standard url string in form '/index.php?request='.
31:      *
32:      * @param string $controller Name of controller.
33:      * @param string $action Name of controller action.
34:      * @param array $params Optional parameters
35:      * @return string $url
36:      * 
37:      */
38:     public static function link($controller, $action, $params = array())
39:     {
40:         // if we have support for semantic (pretty) urls
41:         if (WsConfig::get('pretty_urls') == 'yes'){
42:             $url = WsSERVER_ROOT.'/'.$controller.'/'.$action.'/';
43:             if (count($params) > 0) {
44:                 while ($name = current($params)) {
45:                     $url .= urlencode($name).'/';
46:                     next($params);
47:                 }
48:             }
49:         } else {
50:             $url = WsSERVER_ROOT.'/index.php?request='
51:                 .$controller.'/'.$action.'/';
52:             if (count($params) > 0) {
53:                 while ($name = current($params)) {
54:                     $url = $url.'&'.urlencode(key($params)).'='.urlencode($name);
55:                     next($params);
56:                 }
57:             }
58:         }
59: 
60:         return $url;
61:     }
62: 
63: 
64:     /**
65:      * Construct URLs for static files.
66:      *
67:      * Static files are placed in /public directory.
68:      *
69:      * @param string $file File name
70:      * @return string $asset
71:      * 
72:      */
73:     public static function asset($file)
74:     {
75:         $fileName = WsROOT.'/public/'.$file;
76:         $asset = '';
77: 
78:         if (file_exists($fileName)) {
79:             $asset = WsSERVER_ROOT.'/public/'.$file;
80:         }
81: 
82:         return $asset;
83:     }
84: }
85: 
86: