/**
* Gets the primary keys of the has many values
* @param Model $model Model of the has many field
* @param string $foreignKey Name of the foreign key to this model
* @param integer $id Value for the foreign key
* @return array Array with the primary key of the has many value as key and value
*/
private function findOldHasManyAndBelongsTo($model, $foreignKey, $id)
{
$condition = new SimpleCondition(new FieldExpression($foreignKey), new ScalarExpression($id), Condition::OPERATOR_EQUALS);
$statement = new SelectStatement();
$statement->addTable(new TableExpression($model->getName()));
$statement->addField(new FieldExpression(ModelTable::PRIMARY_KEY));
$statement->addCondition($condition);
$result = $this->executeStatement($statement);
$model->clearCache();
$oldHasMany = array();
foreach ($result as $record) {
$oldHasMany[$record[ModelTable::PRIMARY_KEY]] = $record[ModelTable::PRIMARY_KEY];
}
return $oldHasMany;
}
