FIX: Ensure SSViewer::hasTemplate() is aware of themes.
To do this, RequestHandler::definingClassForAction() has been created, splitting out the code that looks up the class that defines a given action into its own method. This is then overridden in Controller to look at templates.
RequestHandler#handleAction now exists. It takes the request, and
the action to call on itself. All calls from handleRequest to call an action
will go through this method
Controller#handleAction has had it's signature changed to
match new RequestHandler#handleAction
RequestHandler#findAction has been added, which extracts the
"match URL to rules to find action" portion of RequestHandler#handleRequest
into a separate, overrideable function
GridField#handleAction has beeen renamed to handleAlterAction and
CMSBatchActionHandler#handleAction has been renamed to handleBatchAction to
avoid name clash with new RequestHandler#handleAction
Reason for change: The exact behaviour of request handling depended heavily
on whether you inherited from RequestHandler or Controller, and whether the
rule extracted it's action directly (like "foo/$ID" => 'foo') or dynamically
(like "$Action/$ID" => "handleAction"). This cleans up behaviour so
all calls follow the same path through handleRequest and handleAction, and
the additional behaviour that Controller adds is clear.
allowed_actions is now only allowed to reference public methods defined
on the same Controller as the allowed_actions static, and
the wildcard "*" has been deprecated
Controller (and subclasses) failed to enforce $allowed_action restrictions
on parent classes if a child class didn't have it explicitly defined.
Controllers which are extended with $allowed_actions (through an Extension)
now deny access to methods defined on the controller, unless this class also has them in its own
$allowed_actions definition.
The entire framework repo (with the exception of system-generated files) has been amended to respect the 120c line-length limit. This is in preparation for the enforcement of this rule with PHP_CodeSniffer.
These APIs are primarily intended to let developers write custom 404 handlers. They can define an onBeforeHTTPError404() method on an Extension that gets added to Controller or RequestHandler.
The SS_HTTPResponse_Exception object has also been tidied up to override the status info of any SS_HTTPResponse object that might get passed. This is mainly to make it easier for callers (such as ContentController and ModelAsController) to use RequestHandler::httpError() more consistently.
This allows arguments to be passed along in an $allowed_actions deceleration of
the form 'action' => '->method' in the same way that arguments can be passed to
extension constructors when adding them using $extensions or
Object::add_extension.
I.e. 'action' => '->checkerMethod(false, 7, 2, "yesterday") would call the
checkerMethod method with the boolean false the numbers 7 and 2 and the string
"yesterday" as its arguments.
API CHANGE: Add DataList::newObject(), which creates a new object on that DataList.
API CHANGE: RequestHandler::handleRequest() now needs to handle a $model argument, if you override it.
