The followings are the available columns in table 'patient_allergy_assignment':
/**
* marks the patient as having no allergies as of now
*
* @throws Exception
*/
public function setNoAllergies()
{
$transaction = Yii::app()->db->beginTransaction();
try {
foreach (PatientAllergyAssignment::model()->findAll('patient_id = ?', array($this->id)) as $paa) {
if (!$paa->delete()) {
throw new Exception('Unable to delete patient allergy assignment: ' . print_r($paa->getErrors(), true));
}
$this->audit('patient', 'remove-allergy');
}
$this->no_allergies_date = date('Y-m-d H:i:s');
if (!$this->save()) {
throw new Exception('Unable to set no allergy date:' . print_r($this->getErrors(), true));
}
$this->audit('patient', 'set-noallergydate');
$transaction->commit();
} catch (Exception $e) {
$transaction->rollback();
throw $e;
}
}
/**
* Save allergies - because it's part of the History element it need to be saved from that element.
*
* @param $element
* @param $data
* @param $index
*/
protected function saveComplexAttributes_Element_OphCiExamination_History($element, $data, $index)
{
$patient = \Patient::model()->findByPk($this->patient->id);
// we remove all current allergy data
if (!empty($data['deleted_allergies'])) {
foreach ($data['deleted_allergies'] as $i => $assignment_id) {
if ($assignment_id > 0) {
$allergyToDel = \PatientAllergyAssignment::model()->findByPk($assignment_id);
if ($allergyToDel) {
$allergyToDel->delete();
}
}
}
}
if (isset($data['no_allergies']) && $data['no_allergies']) {
$patient->setNoAllergies();
} else {
if (!empty($data['selected_allergies'])) {
foreach ($data['selected_allergies'] as $i => $allergy_id) {
$allergyObject = \Allergy::model()->findByPk($allergy_id);
if ($data['other_names'][$i] == 'undefined') {
$data['other_names'][$i] = '';
}
$patient->addAllergy($allergyObject, $data['other_names'][$i], $data['allergy_comments'][$i], false, $this->event->id);
}
}
}
}
/**
* adds an allergy to the patient
*
* @param Allergy $allergy
* @param string $other
* @throws Exception
*/
public function addAllergy(Allergy $allergy, $other = null, $comments = null, $startTransaction = true)
{
if ($allergy->name == 'Other') {
if (!$other) {
throw new Exception("No 'other' allergy specified");
}
} else {
if (PatientAllergyAssignment::model()->exists('patient_id=? and allergy_id=?', array($this->id, $allergy->id))) {
throw new Exception("Patient is already assigned allergy '{$allergy->name}'");
}
}
if ($startTransaction) {
$transaction = Yii::app()->db->beginTransaction();
}
try {
$paa = new PatientAllergyAssignment();
$paa->patient_id = $this->id;
$paa->allergy_id = $allergy->id;
$paa->comments = $comments;
$paa->other = $other;
if (!$paa->save()) {
throw new Exception('Unable to add patient allergy assignment: ' . print_r($paa->getErrors(), true));
}
$this->audit('patient', 'add-allergy');
if ($this->no_allergies_date) {
$this->no_allergies_date = null;
if (!$this->save()) {
throw new Exception('Could not remove no allergy flag: ' . print_r($this->getErrors(), true));
}
}
$this->audit('patient', 'remove-noallergydate');
if ($startTransaction) {
$transaction->commit();
}
} catch (Exception $e) {
if ($startTransaction) {
$transaction->rollback();
}
throw $e;
}
}
/**
* List of allergies - changed to a wrap function to be able to use a common function from the model.
*/
public function allergyList()
{
return PatientAllergyAssignment::model()->allergyList($this->patient->id);
}
