PHP code example of zumba / swivel

    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

    

zumba / swivel example snippets

// Old School Feature Flag

if ($flagIsOn) {
    // Do something new
} else {
    // Do something old
}

$formula = $swivel->forFeature('AwesomeSauce')
    ->addBehavior('formulaSpicy', [$this, 'getNewSpicyFormula'])
    ->addBehavior('formulaSaucy', [$this, 'getNewSaucyFormula'])
    ->defaultBehavior([$this, 'getFormula'])
    ->execute();

$map = [
    // This is a parent feature slug, arbitrarily named "Payment."
    // The "Payment" feature is enabled for users in buckets 4, 5, and 6
    'Payment' => [4,5,6],

    // This is a behavior slug.  It is a subset of the parent slug,
    // and it is only enabled for users in buckets 4 and 5
    'Payment.Test' => [4, 5],

    // Behavior slugs can be nested.
    // This one is only enabled for users in bucket 5.
    'Payment.Test.VersionA' => [5]
];

// Get this value from the session or from persistent storage.
$userBucket = 5; // $_SESSION['bucket'];

// Get the feature map data from persistent storage.
$mapData = [ 'Feature' => [4,5,6], 'Feature.Test' => [4,5] ];

// Make a new configuration object
$config = new \Zumba\Swivel\Config($mapData, $userBucket);

// Make a new Swivel Manager.  This is your primary API to the Swivel library.
$swivel = new \Zumba\Swivel\Manager($config);

$map = [ 'Search' => [5], 'Search.NewAlgorithm' => [5] ];
$config = new \Zumba\Swivel\Config($map, $_SESSION['bucketIndex']);
$swivel = new \Zumba\Swivel\Manager($config);

// ServiceLocator is fictional in this example.  Use your own framework or repository to store the
// swivel instance.
ServiceLocator::add('Swivel', $swivel);

public function search($params = []) {
    $swivel = ServiceLocator::get('Swivel');
    return $swivel->forFeature('Search')
        ->addBehavior('NewAlgorithm', [$this, 'awesomeSearch'], [$params])
        ->defaultBehavior([$this, 'normalSearch'], [$params])
        ->execute();
}

protected function normalSearch($params) {
    // Tried and True method.
}

protected function awesomeSearch($params) {
    // Super cool new search method.
}

$features = [ 'Feature' => [1,2,3] ];
$bucket = 3;

// array
$config = new \Zumba\Swivel\Config($features, $bucket);

// \Zumba\Swivel\Map
$config = new \Zumba\Swivel\Config(new \Zumba\Swivel\Map($features), $bucket);

 // $driver implements \Zumba\Swivel\DriverInterface
$config = new \Zumba\Swivel\Config($driver, $bucket);

$config = new \Zumba\Swivel\Config($features, $bucket);
$swivel = new \Zumba\Swivel\Manager($config);

$builder = $swivel->forFeature('Test');

// without Swivel
$result = $newSearch ? $this->search() : $this->noOp();

// Zumba\Swivel\Manager::invoke
$result = $swivel->invoke('Search.New', [$this, 'search'], [$this, 'noOp']);
$result = $swivel->invoke('Search.New', [$this, 'search']);

// without Swivel
$result = $newSearch ? 'Everything' : null;

// Zumba\Swivel\Manager::returnValue
$result = $swivel->returnValue('Search.New', 'Everything', null);
$result = $swivel->returnValue('Search.New', 'Everything');

$builder = $swivel->forFeature('Test');

$builder
    // Inline function.  This one will return 'ab'
    ->addBehavior('versionA', function($a, $b) { return $a . $b; }, ['a', 'b'])

    // Callable.  Will return the result of $obj->someMethod('c', 'd');
    ->addBehavior('versionB', [$obj, 'someMethod'], ['c', 'd'])

     // Since version 2.0.0, this will throw a \LogicException.  Use `addValue` instead.
    ->addBehavior('versionC', 'result');

$builder = $swivel->forFeature('Test');

$builder
    // This will return `'result'`
    ->addValue('versionA', 'result')

    // Callable.  This will not be executed; Swivel will just return the unexecuted callable.
    ->addValue('versionB', [$obj, 'someMethod']);

$swivel
    ->forFeature('Test');
    ->addBehavior('New.Version', [$this, 'someMethod'], $args)
    ->defaultBehavior([$this, 'defaultMethod'], $args);

$swivel
    ->forFeature('Test');
    ->addBehavior('New.Version', [$this, 'someMethod'], $args)
    ->defaultValue('some default value');

// $result will contain either the result of
// $this->someMethod(1, 2, 3) or $this->defaultMethod('test')
// depending on the user's bucket
$result = $swivel
    ->forFeature('Test');
    ->addBehavior('New.Version', [$this, 'someMethod'], [1, 2, 3])
    ->defaultBehavior([$this, 'defaultMethod'], ['test'])
    ->execute();

$swivel
    ->forFeature('Test');
    ->addBehavior('A', [$obj, 'someMethod'])
    ->execute(); // throws \LogicException here.

$swivel
    ->forFeature('Test');
    ->addBehavior('A', [$obj, 'someMethod'])
    ->noDefault()
    ->execute(); // no exception thrown.

$swivel
    ->forFeature('Test');
    ->addBehavior('A', [$obj, 'someMethod'])
    ->defaultBehavior([$obj, 'anotherMethod'])
    ->noDefault() // throws \LogicException here.
    ->execute();