$canviewallassessments = has_capability('mod/workshop:viewallassessments', $workshop->context);
$canviewallsubmissions = has_capability('mod/workshop:viewallsubmissions', $workshop->context);
-$canoverridegrades = ($workshop->phase == workshop::PHASE_EVALUATION) and has_capability('mod/workshop:overridegrades', $workshop->context);
+$canoverridegrades = (($workshop->phase == workshop::PHASE_EVALUATION) and has_capability('mod/workshop:overridegrades', $workshop->context));
$isreviewer = ($USER->id == $assessment->reviewerid);
$isauthor = ($USER->id == $submission->authorid);
$ownsubmission = $submission->authorid == $USER->id;
$canviewall = has_capability('mod/workshop:viewallsubmissions', $workshop->context);
$cansubmit = has_capability('mod/workshop:submit', $workshop->context);
-$canoverride = ($workshop->phase == workshop::PHASE_EVALUATION) and has_capability('mod/workshop:overridegrades', $workshop->context);
+$canoverride = (($workshop->phase == workshop::PHASE_EVALUATION) and has_capability('mod/workshop:overridegrades', $workshop->context));
$isreviewer = $DB->record_exists('workshop_assessments', array('submissionid' => $submission->id, 'reviewerid' => $USER->id));
$editable = $workshop->submitting_allowed();
-$edit = $editable and $edit;
+$edit = ($editable and $edit);
if ($submission->id and ($ownsubmission or $canviewall or $isreviewer)) {
// ok you can go