Changeset 492

Timestamp:

Sep 3, 2014 8:10:51 PM (10 years ago)

Author:

anonymous

Message:

Added cacheBustURL()

File:

• trunk/lib/App.inc.php (modified) (2 diffs)

trunk/lib/App.inc.php

@@ -917 +917 @@
         ) {
             $url .= $q . $delim . session_name() . '=' . session_id();
-            return $url;
         } else {
             $url .= $q;
-            return $url;
-        }
+        }
+
+        return $url;
     }
 
@@ -941 +941 @@
 
         return $url;
+    }
+
+    /*
+    * Return a URL with a version number attached. This is useful for overriding network caches ("cache buster") for sourced media, e.g., /style.css?812763482
+    *
+    * @access   public
+    * @param    string  $url    URL to media (e.g., /foo.js)
+    * @return   string          URL with cache-busting version appended (/foo.js?v=1234567890)
+    * @author   Quinn Comendant <quinn@strangecode.com>
+    * @version  1.0
+    * @since    03 Sep 2014 22:40:24
+    */
+    public function cacheBustURL($url)
+    {
+        // Get the first delimiter that is needed in the url.
+        $delim = mb_strpos($url, '?') !== false ? ini_get('arg_separator.output') : '?';
+        $v = crc32($this->getParam('codebase_version') . '|' . $this->getParam('site_version'));
+        return sprintf('%s%sv=%s', $url, $delim, $v);
     }