/**
* Creates UPDATE query.
*
* @param string $table A table name for the query.
* @param array $values Expressions list for updating.
* @return UpdateQuery
*/
function update($table, array $values)
{
$valuesBag = new ExpressionBag();
foreach ($values as $column => $value) {
if ($value instanceof Assign) {
$valuesBag->add($value);
} else {
$valuesBag->add(assign($column, $value));
}
}
return new UpdateQuery(new Reference($table), $valuesBag);
}
/**
* @param DriverInterface $driver
* @return string
* @throws CompileException
*/
private function compileFields(DriverInterface $driver)
{
if (empty($this->fields)) {
throw new CompileException('No fields found for insert query.');
}
$fields = new ExpressionBag();
foreach ($this->fields as $field) {
$fields->add(new Reference($field));
}
return $fields->concat($driver, ', ');
}
