/**
* doIncrement method will allow user to increment
* a given field by calling this function from its model.
*
* @param ModelObject $model
* @param integer $id - Record Id for which the $field is to be incremented
* @param integer (optional) $incrementValue, default is 1
* @param string $field (optional) - If not supplied then field name which was provided
* during initialization is used, otherwise
* it is overwritten with the supplied argument.
* @return boolean
*/
function doIncrement(&$model, $id, $incrementValue = 1, $field = null)
{
$answer = false;
if (empty($field)) {
$field = $this->__settings[$model->alias]['incrementFieldName'];
}
// Save the internal variables for the model
$recursiveLevel = $model->recursive;
$data = $model->data;
$model->recursive = -1;
$model->data = $model->findById((int) $id, array('id', $field));
if (!empty($model->data)) {
$counter = (int) $model->data[$model->alias][$field] + (int) $incrementValue;
$conditions = array($model->alias . '.id' => $id);
$fields = array($field => $counter);
// Issue updateAll as it won't call any other methods like beforeSave and such in the Model or the
// Behavior methods. Just a step for saving callbacks which are not required.
$answer = $model->updateAll($fields, $conditions);
}
// restore the variables back to original
$model->data = $data;
$model->recursive = $recursiveLevel;
return $answer;
}
