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ExpressionSqlTest.php
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<?php
declare(strict_types=1);
namespace Atk4\Data\Tests;
use Atk4\Data\Model;
use Atk4\Data\Schema\TestCase;
use Doctrine\DBAL\Platforms\OraclePlatform;
class ExpressionSqlTest extends TestCase
{
public function testNakedExpression(): void
{
$m = new Model($this->db, ['table' => false]);
$m->addExpression('x', ['expr' => '2 + 3', 'type' => 'integer']);
$m = $m->loadOne();
self::assertSame(5, $m->get('x'));
}
public function testBasic(): void
{
$this->setDb([
'invoice' => [
['total_net' => 10, 'total_vat' => 1.23],
['total_net' => 20, 'total_vat' => 2.46],
],
]);
$i = new Model($this->db, ['table' => 'invoice']);
$i->addField('total_net', ['type' => 'integer']);
$i->addField('total_vat', ['type' => 'float']);
$i->addExpression('total_gross', ['expr' => '[total_net] + [total_vat]', 'type' => 'float']);
self::assertSameSql(
'select `id`, `total_net`, `total_vat`, (`total_net` + `total_vat`) `total_gross` from `invoice`',
$i->action('select')->render()[0]
);
$ii = $i->load(1);
self::assertSame(10, $ii->get('total_net'));
self::assertSame($ii->get('total_net') + $ii->get('total_vat'), $ii->get('total_gross'));
$ii = $i->load(2);
self::assertSame(20, $ii->get('total_net'));
self::assertSame($ii->get('total_net') + $ii->get('total_vat'), $ii->get('total_gross'));
$i->addExpression('double_total_gross', ['expr' => '[total_gross] * 2', 'type' => 'float']);
self::assertSameSql(
'select `id`, `total_net`, `total_vat`, (`total_net` + `total_vat`) `total_gross`, ((`total_net` + `total_vat`) * 2) `double_total_gross` from `invoice`',
$i->action('select')->render()[0]
);
$i = $i->load(1);
self::assertSame(($i->get('total_net') + $i->get('total_vat')) * 2, $i->get('double_total_gross'));
}
public function testBasicCallback(): void
{
$this->setDb([
'invoice' => [
['total_net' => 10, 'total_vat' => 1.23],
['total_net' => 20, 'total_vat' => 2.46],
],
]);
$i = new Model($this->db, ['table' => 'invoice']);
$i->addField('total_net', ['type' => 'integer']);
$i->addField('total_vat', ['type' => 'float']);
$i->addExpression('total_gross', ['expr' => static function () {
return '[total_net] + [total_vat]';
}, 'type' => 'float']);
self::assertSameSql(
'select `id`, `total_net`, `total_vat`, (`total_net` + `total_vat`) `total_gross` from `invoice`',
$i->action('select')->render()[0]
);
$ii = $i->load(1);
self::assertSame(10, $ii->get('total_net'));
self::assertSame($ii->get('total_net') + $ii->get('total_vat'), $ii->get('total_gross'));
$ii = $i->load(2);
self::assertSame(20, $ii->get('total_net'));
self::assertSame($ii->get('total_net') + $ii->get('total_vat'), $ii->get('total_gross'));
}
public function testQuery(): void
{
$this->setDb([
'invoice' => [
['total_net' => 10, 'total_vat' => 1.23],
['total_net' => 20, 'total_vat' => 2.46],
],
]);
$i = new Model($this->db, ['table' => 'invoice']);
$i->addField('total_net', ['type' => 'integer']);
$i->addField('total_vat', ['type' => 'float']);
$i->addExpression('sum_net', ['expr' => $i->action('fx', ['sum', 'total_net']), ['type' => 'integer']]);
self::assertSameSql(
'select `id`, `total_net`, `total_vat`, (select sum(`total_net`) from `invoice`) `sum_net` from `invoice`',
$i->action('select')->render()[0]
);
$ii = $i->load(1);
self::assertSame(10, $ii->get('total_net'));
self::assertSame(30, $ii->get('sum_net'));
$q = $this->db->dsql();
$q->field($i->action('count'), 'total_orders');
$q->field($i->action('fx', ['sum', 'total_net']), 'total_net');
self::assertSame(
['total_orders' => '2', 'total_net' => '30'],
$q->getRow()
);
}
public function testExpressions(): void
{
$this->setDb([
'user' => [
1 => ['id' => 1, 'name' => 'John', 'surname' => 'Smith', 'cached_name' => 'John Smith'],
['id' => 2, 'name' => 'Sue', 'surname' => 'Sue', 'cached_name' => 'ERROR'],
],
]);
$m = new Model($this->db, ['table' => 'user']);
$m->addField('name');
$m->addField('surname');
$m->addField('cached_name');
if ($this->getDatabasePlatform() instanceof OraclePlatform) { // needed for Oracle 21 and lower
$concatExpr = 'CONCAT(CONCAT([name], \' \'), [surname])';
} else {
$concatExpr = 'CONCAT([name], \' \', [surname])';
}
$m->addExpression('full_name', ['expr' => $concatExpr]);
$m->addCondition($m->expr('[full_name] != [cached_name]'));
$concatSql = preg_replace('~\[(\w+)\]~', '`$1`', $concatExpr);
$this->assertSameSql(
'select `id`, `name`, `surname`, `cached_name`, (' . $concatSql . ') `full_name` from `user` where ((' . $concatSql . ') != `cached_name`)',
$m->action('select')->render()[0]
);
$mm = $m->tryLoad(1);
self::assertNull($mm);
$mm = $m->load(2);
self::assertSame('Sue', $mm->get('name'));
}
public function testVarDump(): void
{
$m = new Model($this->db, ['table' => false]);
$m->addExpression('x', ['expr' => '2 + 3']);
self::assertSame(
'2 + 3',
$m->getField('x')->__debugInfo()['expr']
);
}
public function testReloading(): void
{
$this->setDb($dbData = [
'math' => [
['a' => 2, 'b' => 2],
],
]);
$m = new Model($this->db, ['table' => 'math']);
$m->addField('a', ['type' => 'integer']);
$m->addField('b', ['type' => 'integer']);
$m->addExpression('sum', ['expr' => '[a] + [b]', 'type' => 'integer']);
$mm = $m->load(1);
self::assertSame(4, $mm->get('sum'));
$mm->save(['a' => 3]);
self::assertSame(5, $mm->get('sum'));
self::assertSame(9, $m->createEntity()->save(['a' => 4, 'b' => 5])->get('sum'));
$this->dropCreatedDb();
$this->setDb($dbData);
$m = new Model($this->db, ['table' => 'math', 'reloadAfterSave' => false]);
$m->addField('a', ['type' => 'integer']);
$m->addField('b', ['type' => 'integer']);
$m->addExpression('sum', ['expr' => '[a] + [b]', 'type' => 'integer']);
$mm = $m->load(1);
self::assertSame(4, $mm->get('sum'));
$mm->save(['a' => 3]);
self::assertSame(4, $mm->get('sum'));
self::assertNull($m->createEntity()->save(['a' => 4, 'b' => 5])->get('sum'));
}
public function testExpressionActionAlias(): void
{
$m = new Model($this->db, ['table' => false]);
$m->addExpression('x', ['expr' => '2 + 3', 'type' => 'integer']);
// use alias as array key if it is set
$q = $m->action('field', ['x', 'alias' => 'foo']);
self::assertSame([['foo' => '5']], $q->getRows());
// if alias is not set, then use field name as key
$q = $m->action('field', ['x']);
self::assertSame([['x' => '5']], $q->getRows());
// FX actions
$q = $m->action('fx', ['sum', 'x', 'alias' => 'foo']);
self::assertSame([['foo' => '5']], $q->getRows());
$q = $m->action('fx', ['sum', 'x']);
self::assertSame([['sum_x' => '5']], $q->getRows());
$q = $m->action('fx0', ['sum', 'x', 'alias' => 'foo']);
self::assertSame([['foo' => '5']], $q->getRows());
$q = $m->action('fx0', ['sum', 'x']);
self::assertSame([['sum_x' => '5']], $q->getRows());
}
public function testNeverSaveNeverPersist(): void
{
$this->setDb([
'invoice' => [
['foo' => 'bar'],
],
]);
$i = new Model($this->db, ['table' => 'invoice']);
$i->addExpression('zero_basic', ['expr' => $i->expr('0'), 'type' => 'integer']);
$i->addExpression('zero_neverSave', ['expr' => $i->expr('0'), 'type' => 'integer', 'neverSave' => true]);
$i->addExpression('zero_neverPersist', ['expr' => $i->expr('0'), 'type' => 'integer', 'neverPersist' => true]);
$i->addExpression('one_basic', ['expr' => $i->expr('1'), 'type' => 'integer', 'system' => true]);
$i->addExpression('one_neverSave', ['expr' => $i->expr('1'), 'type' => 'integer', 'neverSave' => true, 'system' => true]);
$i->addExpression('one_neverPersist', ['expr' => $i->expr('1'), 'type' => 'integer', 'neverPersist' => true, 'system' => true]);
$i = $i->loadOne();
// normal fields
self::assertSame(0, $i->get('zero_basic'));
self::assertSame(1, $i->get('one_basic'));
// neverSave - are loaded from DB, but not saved
self::assertSame(0, $i->get('zero_neverSave'));
self::assertSame(1, $i->get('one_neverSave'));
// neverPersist - are not loaded from DB and not saved - as result expressions will not be executed
self::assertNull($i->get('zero_neverPersist'));
self::assertNull($i->get('one_neverPersist'));
}
}