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README.md
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@ -23,15 +23,147 @@ composer require danog/async-orm
There are two main ways to use the ORM: through automatic ORM properties, which automatically connects appropriately marked `DbArray` properties to the specified database, or by manually instantiating a `DbArray` with a `DbArrayBuilder`. There are two main ways to use the ORM: through automatic ORM properties, which automatically connects appropriately marked `DbArray` properties to the specified database, or by manually instantiating a `DbArray` with a `DbArrayBuilder`.
* [Automatic ORM properties example »](https://github.com/danog/AsyncOrm/blob/master/examples/1-automatic.php) The `DbArray` obtained through one of the methods below is an abstract array object that automatically stores and fetches elements of the specified [type »](#value-types), from the specified database.
* [Manual example »](https://github.com/danog/AsyncOrm/blob/master/examples/2-manual.php)
The `DbArray` obtained through one of the methods above is an abstract array object that automatically stores and fetches elements of the specified [type »](#value-types), from the specified database.
`DbArray`s of type `ValueType::OBJECT` can contain objects extending `DbObject`. `DbArray`s of type `ValueType::OBJECT` can contain objects extending `DbObject`.
Classes extending `DbObject` have a special `save` method that can be used to persist object changes to the database, as can be seen in the [example](https://github.com/danog/AsyncOrm/blob/master/examples/2-manual.php). Classes extending `DbObject` have a special `save` method that can be used to persist object changes to the database, as can be seen in the [example](https://github.com/danog/AsyncOrm/blob/master/examples/2-manual.php).
### Automatic ORM properties example
```php
<?php declare(strict_types=1);
use Amp\Mysql\MysqlConfig;
use Amp\Postgres\PostgresConfig;
use Amp\Redis\RedisConfig;
use danog\AsyncOrm\Annotations\OrmMappedArray;
use danog\AsyncOrm\DbArray;
use danog\AsyncOrm\DbAutoProperties;
use danog\AsyncOrm\DbObject;
use danog\AsyncOrm\KeyType;
use danog\AsyncOrm\Settings;
use danog\AsyncOrm\Settings\MysqlSettings;
use danog\AsyncOrm\Settings\PostgresSettings;
use danog\AsyncOrm\Settings\RedisSettings;
use danog\AsyncOrm\ValueType;
require __DIR__ . '/../vendor/autoload.php';
// Any of the following database backends can be used,
// remove the ones you don't need.
$settings = new MysqlSettings(
new MysqlConfig(
host: "/var/run/mysqld/mysqld.sock",
user: 'user',
password: 'password',
database: 'database'
),
cacheTtl: 100
);
$settings = new PostgresSettings(
new PostgresConfig(
host: "127.0.0.1",
user: "user",
password: "password",
database: "database"
),
cacheTtl: 100
);
$settings = new RedisSettings(
RedisConfig::fromUri("redis://127.0.0.1"),
cacheTtl: 100
);
/**
* An object stored in a database.
*/
class MyObject extends DbObject
{
public function __construct(
private string $value
) {
}
public function setValue(string $value): void
{
$this->value = $value;
}
public function getValue(): string
{
return $this->value;
}
}
/**
* Main class of your application.
*/
final class Application
{
use DbAutoProperties;
/**
* This field is automatically connected to the database using the specified Settings.
*
* @var DbArray<string, MyObject>
*/
#[OrmMappedArray(KeyType::STRING, ValueType::OBJECT)]
private DbArray $dbProperty1;
/**
* This field is automatically connected to the database using the specified Settings.
*
* @var DbArray<string, int>
*/
#[OrmMappedArray(KeyType::STRING, ValueType::INT)]
private DbArray $dbProperty2;
public function __construct(
Settings $settings,
string $tablePrefix
) {
$this->initDbProperties($settings, $tablePrefix);
}
public function businessLogic(): void
{
$this->dbProperty1['someOtherKey'] = new MyObject("initialValue");
// Can store integers, strings, arrays or objects depending on the specified ValueType
$this->dbProperty2['someKey'] = 123;
var_dump($this->dbProperty2['someKey']);
}
public function businessLogic2(string $value): void
{
$obj = $this->dbProperty1['someOtherKey'];
$obj->setValue($value);
$obj->save();
}
public function businessLogic3(): string
{
return $this->dbProperty1['someOtherKey']->getValue();
}
public function shutdown(): void
{
// Flush all database caches, saving all changes.
$this->saveDbProperties();
}
}
$app = new Application($settings, 'tablePrefix');
$app->businessLogic();
$app->businessLogic2("newValue");
var_dump($app->businessLogic3());
$app->shutdown();
```
### Manual ORM properties example
See [here &raquo;](https://github.com/danog/AsyncOrm/blob/master/examples/2-manual.php)
### Settings ### Settings
As specified in the examples above, there are multiple settings classes that can be used to connect to a specific database type: As specified in the examples above, there are multiple settings classes that can be used to connect to a specific database type: