protected function getForm()
{
if (!$this->isPageAssignedToProject()) {
throw new ErrorPageError('ar-approvalform-generalerror', 'ar-approvalform-pageunassigned');
}
if (!$this->userCanApprovePage()) {
throw new ErrorPageError('ar-approvalform-badaccess', 'ar-approvalform-badaccess-group', ApprovedRevs::getGroupName($this->getTitle()));
}
if (ApprovedRevs::isLatestRevisionApproved($this->getTitle())) {
throw new ErrorPageError('ar-approvalform-generalerror', 'ar-approvalform-alreadyapproved', ApprovedRevs::getGroupName($this->getTitle()));
}
return parent::getForm();
}