/**
* adds a risk to the patient
*
* @param Risk $risk
* @param string $other
* @throws Exception
*/
public function addRisk(Risk $risk, $other = null, $comments = null)
{
if ($risk->name == 'Other') {
if (!$other) {
throw new Exception("No 'other' risk specified");
}
} else {
if (PatientRiskAssignment::model()->exists('patient_id=? and risk_id=?', array($this->id, $risk->id))) {
throw new Exception("Patient is already assigned risk '{$risk->name}'");
}
}
$transaction = Yii::app()->db->beginTransaction();
try {
$pra = new PatientRiskAssignment();
$pra->patient_id = $this->id;
$pra->risk_id = $risk->id;
$pra->comments = $comments;
$pra->other = $other;
if (!$pra->save()) {
throw new Exception('Unable to add patient risk assignment: ' . print_r($pra->getErrors(), true));
}
$this->audit('patient', 'add-risk');
if ($this->no_risks_date) {
$this->no_risks_date = null;
if (!$this->save()) {
throw new Exception('Could not remove no risk flag: ' . print_r($this->getErrors(), true));
}
}
$this->audit('patient', 'remove-noriskdate');
$transaction->commit();
} catch (Exception $e) {
$transaction->rollback();
throw $e;
}
}
