Each node is a question for a given assessment flow. If it's parent is null, it is the root node
for the related flow. There should only be one with a null parent for each flow.
public function getRootNode()
{
$criteria = new CDbCriteria();
$criteria->addColumnCondition(array('decisiontree_id' => $this->id, 'parent_id' => null));
$node = OphCoTherapyapplication_DecisionTreeNode::model()->find($criteria);
return $node;
}
public function actionCreateDecisionTreeNodeRule($id)
{
$node = OphCoTherapyapplication_DecisionTreeNode::model()->findByPk((int) $id);
$model = new OphCoTherapyapplication_DecisionTreeNodeRule();
$model->node = $node;
if (isset($_POST['OphCoTherapyapplication_DecisionTreeNodeRule'])) {
$model->attributes = $_POST['OphCoTherapyapplication_DecisionTreeNodeRule'];
$model->node_id = $node->id;
if ($model->save()) {
Audit::add('admin', 'create', $model->id, null, array('module' => 'OphCoTherapyapplication', 'model' => 'OphCoTherapyapplication_DecisionTreeNodeRule'));
Yii::app()->user->setFlash('success', 'Decision Tree Node rule created');
$this->redirect(array('viewdecisiontree', 'id' => $node->decisiontree_id, 'node_id' => $node->id));
}
}
$this->renderPartial('create', array('model' => $model, 'node' => $node, 'title' => 'Rule for ' . ($node->outcome ? $node->outcome->name . ' Outcome' : $node->question)));
}
/**
* works out the node response value for the given node id on the element. Basically allows us to check for
* submitted values, values stored against the element from being saved, or working out a default value if applicable.
*
* @param Element_OphCoTherapyapplication_PatientSuitability $element
* @param string $side
* @param int $node_id
*/
public function getNodeResponseValue($element, $side, $node_id)
{
if (isset($_POST['Element_OphCoTherapyapplication_PatientSuitability'][$side . '_DecisionTreeResponse'])) {
// responses have been posted, so should operate off the value for this node.
return @$_POST['Element_OphCoTherapyapplication_PatientSuitability'][$side . '_DecisionTreeResponse'][$node_id];
}
foreach ($element->{$side . '_responses'} as $response) {
if ($response->node_id == $node_id) {
return $response->value;
}
}
$node = OphCoTherapyapplication_DecisionTreeNode::model()->findByPk($node_id);
return $node->getDefaultValue($side, $this->patient, $this->episode);
}