protected function createConditionsFromKeys(Model $model, $condition_keys = [], $value_keys = [])
{
$condition_string = \implode('_and_', $condition_keys);
$condition_values = \array_values($model->getValuesFor($value_keys));
// return null if all the foreign key values are null so that we don't try to do a query like "id is null"
if (all(null, $condition_values)) {
return null;
}
$conditions = SQLBuilder::createConditionsFromUnderscoredString(Table::load(\get_class($model))->conn, $condition_string, $condition_values);
# DO NOT CHANGE THE NEXT TWO LINES. add_condition operates on a reference and will screw options array up
if (isset($this->options['conditions'])) {
$options_conditions = $this->options['conditions'];
} else {
$options_conditions = [];
}
return Utils::addCondition($options_conditions, $conditions);
}
