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BUGFIX Improved ClassInfo::ancestry() performance through in-memory caching and removal of unnecessary is_object() check - get_class() will complain if its not passed an object already)

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This commit is contained in:
Ingo Schommer 2012-01-02 14:01:16 +01:00
parent 72694d8349
commit 4056b94f75
2 changed files with 18 additions and 17 deletions
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30
core/ClassInfo.php
View File

@ -27,6 +27,11 @@ class ClassInfo {
*/
private static $_cache_all_tables = null;
/**
* @var Array Cache for {@link ancestry()}.
*/
private static $_cache_ancestry = array();
/**
* @todo Move this to SS_Database or DB
*/
@ -46,6 +51,7 @@ class ClassInfo {
static function reset_db_cache() {
self::$_cache_all_tables = null;
self::$_cache_ancestry = array();
}
/**
@ -143,23 +149,21 @@ class ClassInfo {
* @return array
*/
public static function ancestry($class, $tablesOnly = false) {
if (!is_string($class)) $class = get_class($class);
$cacheKey = $class . '_' . (string)$tablesOnly;
$parent = $class;
if(!isset(self::$_cache_ancestry[$cacheKey])) {
$ancestry = array();
if (is_object($class)) {
$class = get_class($class);
} elseif (!is_string($class)) {
throw new InvalidArgumentException(sprintf(
'Invalid class value %s, must be an object or string', var_export($class, true)
));
}
do {
if (!$tablesOnly || DataObject::has_own_table($class)) {
$ancestry[$class] = $class;
if (!$tablesOnly || DataObject::has_own_table($parent)) {
$ancestry[$parent] = $parent;
}
} while ($parent = get_parent_class($parent));
self::$_cache_ancestry[$cacheKey] = array_reverse($ancestry);
}
} while ($class = get_parent_class($class));
return array_reverse($ancestry);
return self::$_cache_ancestry[$cacheKey];
}
/**

3
tests/core/ClassInfoTest.php
View File

@ -70,9 +70,6 @@ class ClassInfoTest extends SapphireTest {
$this->assertEquals(array('ClassInfoTest_BaseClass' => 'ClassInfoTest_BaseClass'), $ancestry,
'$tablesOnly option excludes memory-only inheritance classes'
);
$this->setExpectedException('InvalidArgumentException');
ClassInfo::ancestry(42);
}
/**