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ENHACEMENT: Improved caching of permissions for improved CMS perfromance for non-admins (merged from r102278)

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This commit is contained in:
Sam Minnee 2011-10-07 10:36:56 +02:00 committed by Ingo Schommer
parent d64e847534
commit 5d235fa9f7
2 changed files with 20 additions and 35 deletions
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53
code/model/SiteTree.php
View File

@ -865,12 +865,7 @@ class SiteTree extends DataObject implements PermissionProvider,i18nEntityProvid
// Standard mechanism for accepting permission changes from extensions
$extended = $this->extendedCan('canDelete', $memberID);
if($extended !== null) return $extended;
// Check cache (the can_edit_multiple call below will also do this, but this is quicker)
if(isset(self::$cache_permissions['delete'][$this->ID])) {
return self::$cache_permissions['delete'][$this->ID];
}
// Regular canEdit logic is handled by can_edit_multiple
$results = self::can_delete_multiple(array($this->ID), $memberID);
@ -942,11 +937,6 @@ class SiteTree extends DataObject implements PermissionProvider,i18nEntityProvid
if($extended !== null) return $extended;
if($this->ID) {
// Check cache (the can_edit_multiple call below will also do this, but this is quicker)
if(isset(self::$cache_permissions['CanEditType'][$this->ID])) {
return self::$cache_permissions['CanEditType'][$this->ID];
}
// Regular canEdit logic is handled by can_edit_multiple
$results = self::can_edit_multiple(array($this->ID), $memberID);
@ -1029,16 +1019,7 @@ class SiteTree extends DataObject implements PermissionProvider,i18nEntityProvid
$batchCallback=explode('::', $batchCallback);
if(is_callable($batchCallback)) {
$permissionValues = call_user_func($batchCallback, $ids,
Member::currentUserID(), false);
if(!isset(self::$cache_permissions[$permission])) {
self::$cache_permissions[$permission] = array();
}
self::$cache_permissions[$permission] = $permissionValues
+ self::$cache_permissions[$permission];
call_user_func($batchCallback, $ids, Member::currentUserID(), false);
} else {
user_error("SiteTree::prepopuplate_permission_cache can't calculate '$permission' "
. "with callback '$batchCallback'", E_USER_WARNING);
@ -1069,7 +1050,7 @@ class SiteTree extends DataObject implements PermissionProvider,i18nEntityProvid
// This is the name used on the permission cache
// converts something like 'CanEditType' to 'edit'.
$cacheKey = strtolower(substr($typeField, 3, -4));
$cacheKey = strtolower(substr($typeField, 3, -4)) . "-$memberID";
// Default result: nothing editable
$result = array_fill_keys($ids, false);
@ -1165,14 +1146,11 @@ class SiteTree extends DataObject implements PermissionProvider,i18nEntityProvid
}
if(isset($combinedStageResult)) {
// Cache results
// TODO - Caching permissions is breaking unit tests. One possible issue
// is the cache needs to be flushed when permission on a page is changed,
// but this only solved some of the failing unit tests. Disabled for now.
/*foreach($combinedStageResult as $id => $val) {
self::$cache_permissions[$typeField][$id] = $val;
}*/
return $combinedStageResult;
// Cache the results
if(empty(self::$cache_permissions[$cacheKey])) self::$cache_permissions[$cacheKey] = array();
self::$cache_permissions[$cacheKey] = $combinedStageResult + self::$cache_permissions[$cacheKey];
return $combinedStageResult;
} else {
return array();
}
@ -1197,15 +1175,15 @@ class SiteTree extends DataObject implements PermissionProvider,i18nEntityProvid
*/
static function can_delete_multiple($ids, $memberID, $useCached = true) {
$deletable = array();
$result = array_fill_keys($ids, false);
$result = array_fill_keys($ids, false);
$cacheKey = "delete-$memberID";
// Look in the cache for values
if($useCached && isset(self::$cache_permissions['delete'])) {
$cachedValues = array_intersect_key(self::$cache_permissions['delete'], $result);
if($useCached && isset(self::$cache_permissions[$cacheKey])) {
$cachedValues = array_intersect_key(self::$cache_permissions[$cacheKey], $result);
// If we can't find everything in the cache, then look up the remainder separately
$uncachedValues = array_diff_key($result, self::$cache_permissions['delete']);
$uncachedValues = array_diff_key($result, self::$cache_permissions[$cacheKey]);
if($uncachedValues) {
$cachedValues = self::can_delete_multiple(array_keys($uncachedValues), $memberID, false)
+ $cachedValues;
@ -1253,6 +1231,7 @@ class SiteTree extends DataObject implements PermissionProvider,i18nEntityProvid
// value
return array_fill_keys($deletable, true) + array_fill_keys($ids, false);
}
/**
* Collate selected descendants of this page.
@ -2706,6 +2685,10 @@ class SiteTree extends DataObject implements PermissionProvider,i18nEntityProvid
static function reset() {
self::$cache_permissions = array();
}
static function on_db_reset() {
self::$cache_permissions = array();
}
}

2
tests/model/SiteTreeTest.php
View File

@ -504,6 +504,8 @@ class SiteTreeTest extends SapphireTest {
$page->CanEditType = 'OnlyTheseUsers';
$page->EditorGroups()->add($this->idFromFixture('Group', 'editors'));
$page->write();
// Clear permission cache
SiteTree::on_db_reset();
// Confirm that Member.editor can now edit the page
$this->objFromFixture('Member','editor')->logIn();