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git-svn-id: svn://svn.silverstripe.com/silverstripe/open/modules/sapphire/branches/2.4@104795 467b73ca-7a2a-4603-9d3b-597d59a354a9
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Ingo Schommer 2010-05-13 06:53:54 +00:00 committed by Sam Minnee
parent 36eb2c91ff
commit eb178cc75e
1 changed files with 12 additions and 1 deletions
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13
core/model/DataObject.php
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@ -2265,6 +2265,7 @@ class DataObject extends ViewableData implements DataObjectInterface, i18nEntity
/**
* Returns true if the member is allowed to do the given action.
* See {@link extendedCan()} for a more versatile tri-state permission control.
*
* @param string $perm The permission to be checked, such as 'View'.
* @param Member $member The member whose permissions need checking. Defaults to the currently logged
@ -2332,7 +2333,7 @@ class DataObject extends ViewableData implements DataObjectInterface, i18nEntity
/**
* Process tri-state responses from permission-alterting decorators. The decorators are
* expected to return one of 3 values
* expected to return one of three values:
*
* - false: Disallow this permission, regardless of what other decorators say
* - true: Allow this permission, as long as no other decorators return false
@ -2340,9 +2341,15 @@ class DataObject extends ViewableData implements DataObjectInterface, i18nEntity
*
* This method itself returns a tri-state value, and is designed to be used like this:
*
* <code>
* $extended = $this->extendedCan('canDoSomething', $member);
* if($extended !== null) return $extended;
* else return $normalValue;
* </code>
*
* @param String $methodName Method on the same object, e.g. {@link canEdit()}
* @param Member|int $member
* @return boolean|null
*/
public function extendedCan($methodName, $member) {
$results = $this->extend($methodName, $member);
@ -2355,8 +2362,12 @@ class DataObject extends ViewableData implements DataObjectInterface, i18nEntity
}
return null;
}
/**
* Helper functon for extendedCan
*
* @param Mixed $value
* @return boolean
*/
private function isNotNull($value) {
return !is_null($value);