Koriym.Loop

Converts database result sets into an entity list generator that is handy to use in views.

The entity list can be iterated with information provided such as isFirst, isLast, etc. It provides similar functionality for native PHP as the loop processing provided by template engines such as Smarty and Twig.

Usage

class User
{
    public function __construct(
        public readonly int $id,
        public readonly string $name
    ){}
}

$resultSet = [
    ['id' => 1, 'name' => 'ray'],
    ['id' => 2, 'name' => 'bear'],
    ['id' => 3, 'name' => 'alps'],
];

/** @var Generator<Loop, User, mixed, void> $users */
$users = (new LoopGen)($resultSet, User::class);
foreach ($users as $user) {
    echo $user->name;
}

Loop information is obtained from the array keys.

/** @var Loop $loop */
foreach ($users as $loop => $user) {
    echo match(true) {
        $loop->isFirst && $loop->isLast => "<ul><li>{$user->name}</ul>",
        $loop->isFirst => "<ul><li>{$user->name}",
        $loop->isLast => "<li>{$user->name}</ul>",
        default => "<li>{$user->name}"
    };
}

Loop

property	type	Description
isFirst	bool	Is first on the list?
isLast	bool	Is last on the list?
index	int	Loop count of 0 origin
iteration	int	Loop count of 1 origin

Injection

Dependent instances can be injected into the entity by specifying them as the third argument. Specify the key as the name of the parameter and the value as the instance.

$dependencies = [
    $varName => $insntance
];
$users = (new LoopGen)($resultSet, User::class, $dependencies);

Iterator

Iterator is supported as well as array.

$csvIterator = new ogrrd\CsvIterator\CsvIterator($csvFilePath);
/** @var list<User> $userList */
$csvRowList = (new LoopGen)($csvIterator, Row::class);
foreach ($csvRowList as $row) {
    echo $row->name;
}