After a quick look at the changes in svn, this should be changed in the tutorial:
1. The profiler apparently is not available by default, so all code should have:
Code:
jimport( 'joomla.utilities.profiler' );
2. cleanCache() is now clean():
Code:
$cache->clean();
instead of
Code:
$cache->cleanCache();
3. When getting a reference to the cache object, it will default to 'output', but we need 'callback', so:
Code:
// Get a reference to the global cache object.
$cache = & JFactory::getCache( 'callback' );
4. call() is a wrapper for get(), so we'll use:
Code:
$rows = $cache->get( array( 'TestClass', 'testMethod' ), $table );
The complete code in part 5 of the tut now looks like this:
Code:
<?php
jimport( 'joomla.utilities.profiler' );
class TestClass {
function testMethod( $table ) {
// Get a reference to the global database object.
$db = & JFactory::getDBO();
// Execute the same database query 250 times.
for( $i=0; $i<250; $i++) {
$db->setQuery( "SELECT * FROM #__$table" );
$rows = $db->loadObjectList();
}
return $rows;
}
}
// Determine which database table to query.
$table = JRequest::getVar( 'table', 'content' );
// Get a reference to the global cache object.
$cache = & JFactory::getCache('callback' );
// Run the test without caching.
$profiler = new JProfiler();
$rows = TestClass::testMethod( $table );
echo $profiler->mark( ' without caching' );
// Run the test with caching.
$profiler = new JProfiler();
$rows = $cache->get( array( 'TestClass', 'testMethod' ), $table );
echo $profiler->mark( ' with caching' );
?>
The other code examples should be changed as well.
I'll keep an eye out for any further changes to the svn.
, I never imagined writing even such a basic tut could be such hard work. I'll see if I can write some more, no promises though.
