Returns the static model of the specified AR class.
| public static model ( $className = __CLASS__ ) : OphDrPrescription_Item | ||
| return | OphDrPrescription_Item | the static model class |
/**
* @param Patient $patient
* @param array $exclude
*
* @return array|CActiveRecord[]|mixed|null
*/
public function getPrescriptionItemsForPatient(Patient $patient, $exclude = array())
{
$prescriptionCriteria = new CDbCriteria(array('order' => 'event_date DESC'));
$prescriptionCriteria->addCondition('episode.patient_id = :id');
$prescriptionCriteria->addNotInCondition('t.id', $exclude);
$prescriptionCriteria->params = array_merge($prescriptionCriteria->params, array(':id' => $patient->id));
$prescriptionItems = OphDrPrescription_Item::model()->with('prescription', 'drug', 'duration', 'prescription.event', 'prescription.event.episode')->findAll($prescriptionCriteria);
return $prescriptionItems;
}
/**
* Create and save appropriate Element_OphDrPrescription_Item and Element_OphDrPrescription_Item_Taper
* models for this prescription based on the $items structure passed in.
*
* This instance must have been saved already.
*
* @param array() $items
*
* @throws Exception
*/
public function updateItems($items)
{
$itemCount = count($items);
if ($itemCount == 0) {
throw new Exception('Item cannot be blank.');
} else {
if (!$this->id) {
throw new Exception('Cannot call updateItems on unsaved instance.');
}
// Get a list of ids so we can keep track of what's been removed
$existing_item_ids = array();
$existing_taper_ids = array();
// can't rely on relation, as this will have been set already
foreach (OphDrPrescription_Item::model()->findAll('prescription_id = :pid', array(':pid' => $this->id)) as $item) {
$existing_item_ids[$item->id] = $item->id;
foreach ($item->tapers as $taper) {
$existing_taper_ids[$taper->id] = $taper->id;
}
}
// Process (any) posted prescription items
foreach ($items as $item) {
if (isset($item['id']) && isset($existing_item_ids[$item['id']])) {
// Item is being updated
$item_model = OphDrPrescription_Item::model()->findByPk($item['id']);
unset($existing_item_ids[$item['id']]);
} else {
// Item is new
$item_model = new OphDrPrescription_Item();
$item_model->prescription_id = $this->id;
$item_model->drug_id = $item['drug_id'];
}
// Save main item attributes
$item_model->dose = $item['dose'];
$item_model->route_id = $item['route_id'];
if (isset($item['route_option_id'])) {
$item_model->route_option_id = $item['route_option_id'];
} else {
$item_model->route_option_id = null;
}
$item_model->frequency_id = $item['frequency_id'];
$item_model->duration_id = $item['duration_id'];
if (isset($item['continue_by_gp'])) {
$item_model->continue_by_gp = $item['continue_by_gp'];
} else {
$item_model->continue_by_gp = 0;
}
$item_model->save();
// Tapering
$new_tapers = isset($item['taper']) ? $item['taper'] : array();
foreach ($new_tapers as $taper) {
if (isset($taper['id']) && isset($existing_taper_ids[$taper['id']])) {
// Taper is being updated
$taper_model = OphDrPrescription_ItemTaper::model()->findByPk($taper['id']);
unset($existing_taper_ids[$taper['id']]);
} else {
// Taper is new
$taper_model = new OphDrPrescription_ItemTaper();
$taper_model->item_id = $item_model->id;
}
$taper_model->dose = $taper['dose'];
$taper_model->frequency_id = $taper['frequency_id'];
$taper_model->duration_id = $taper['duration_id'];
$taper_model->save();
}
}
// Delete remaining (removed) ids
OphDrPrescription_ItemTaper::model()->deleteByPk(array_values($existing_taper_ids));
OphDrPrescription_Item::model()->deleteByPk(array_values($existing_item_ids));
}
}
