Add expression field.
| public addExpression ( string $name, array $defaults ) : Field_Callback | ||
| $name | string | |
| $defaults | array | |
| return | Field_Callback | |
public function testReloading()
{
$a = ['math' => [['a' => 2, 'b' => 2]]];
$this->setDB($a);
$db = new Persistence_SQL($this->db->connection);
$m = new Model($db, 'math');
$m->addFields(['a', 'b']);
$m->addExpression('sum', '[a] + [b]');
$m->load(1);
$this->assertEquals(4, $m['sum']);
$m->save(['a' => 3]);
$this->assertEquals(5, $m['sum']);
$this->assertEquals(9, $m->unload()->save(['a' => 4, 'b' => 5])->get('sum'));
$this->setDB($a);
$m = new Model($db, ['math', 'reload_after_save' => false]);
$m->addFields(['a', 'b']);
$m->addExpression('sum', '[a] + [b]');
$m->load(1);
$this->assertEquals(4, $m['sum']);
$m->save(['a' => 3]);
$this->assertEquals(4, $m['sum']);
$this->assertEquals(null, $m->unload()->save(['a' => 4, 'b' => 5])->get('sum'));
}