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Informations about the package cain

cain

mix service & closure to workflow

install

composer require jesusslim/cain

example of basic flow

Class Test{

    protected $sid;

    public function __construct($sid)
    {
        $this->sid = $sid;
    }
    public function getNickname(){
        return 'foo'.$this->sid;
    }

    public function getInfo(){
        $id = $this->sid;
        $nickname = $this->getNickname();
        return compact('id','nickname');
    }
}

/*********************************************/
/* the workflows,[class,function] or closure */

$flows = [
    'test_info' => [Test::class,'getInfo'],
    'test_closure' => function($foo){
        return ++$foo;
    }
];

/*********************************************/
/* result_injs will inject the datas of result(or the whole result) to container,so that the next workflow can use them */
/* the key is the keyname in result,the value is the keyname that we want to set to container. */

$result_injs = [
    'test_info' => [
        'id' => 'foo', //means container.foo = result.id
//        \Cain\Flow::PARAMS_NAME_SELF => 'whole'
    ]
];

/*********************************************/
/* result_checkers will check the result,every result_checker should be a closure like function($result){}.*/ 
/* If check ok,return true,then the next workflow can be run.*/ 
/* If the return of this closure is not true,the whole workflow will be blocked,and we can use isFinished/isError to check the status,and use getError to get the error info.  */

$result_checkers = [
    'test_closure' => function($result){
        if ($result != 100) return 'bar';
        return true;
    }
];
$fl = new \Cain\Flow($flows,$result_checkers,$result_injs);
var_dump($fl->run(['sid' => 12345]));
var_dump($fl->isFinished());
var_dump($fl->isError());
var_dump($fl->getError());

/*********************************************/
/* use flush to clear status & errors */

$fl->flush();

/*********************************************/
/* use InjectorInterface to get the container */

$fl->flow('test_get_container',function(\Inject\InjectorInterface $injector){
    return $injector->produce('nick');
});

var_dump($fl->run(['sid' => 99]));

example of router flow

/*********************************************/
/* the workflows,[class,function] or closure */

$flows = [
    'test_info' => [Test::class,'getInfo'],
    'test_closure' => function($foo){
        return ++$foo;
    },
    'math_foo' => function($foo,$bar = 100){
        return $foo * $bar;
    },
    'math_bar' => function($foo,$bar = 100){
        return $foo / $bar;
    },
];

/*********************************************/
/* the routes logic */
/* key is the source route flow key */
/* value is the next route flow key or a Closure that return the next route flow key. */

$routes = [
    'test_info' => 'test_closure',
    'test_closure' => function($foo){
        return $foo % 2 == 1 ? 'math_foo' : 'math_bar';
    }
];

/*********************************************/
/* checkers & injs , same in basic flow */

$result_checkers = [
    'test_closure' => function($result){
        //if ($result != 100) return 'bar';
        var_dump("result is $result");
        return true;
    }
];

$result_injs = [
    'test_info' => [
        'id' => 'foo',
        'nickname' => 'nick',
        //        \Cain\Flow::PARAMS_NAME_SELF => 'whole'
    ]
];

/*********************************************/
/* RouterFlow extends Flow,need routes(workflow routes logic) & root_key(the start flow key) */
/* RouterFlow will return when the workflow blocked by checkers or it can't find the next flow key */

$fl = new \Cain\RouterFlow($flows,$result_checkers,$result_injs,null,$routes,'test_info');
var_dump($fl->run(['sid' => 99]));
$fl->flush();
var_dump($fl->run(['sid' => 100]));

All versions of cain with dependencies

PHP Build Version
Package Version
Requires php Version >=5.6.0
jesusslim/pinject Version dev-master
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