ems/xtype

Semantic types for PHP

v0.2.0 2018-07-02 12:24 UTC

Requires

• php: >=5.3.0

MIT

• Michael Tils

• mvc
• validation
• scaffolding

README

Semantic atomic types for PHP

Usage

XType classifies datatypes. They are mainly used to scaffold forms and get centralized string formatting.

Instead of saying:

echo number_format($myObject->price,2,'.');

with xtype you can write:

class MyObject{

    public $price;
    
    public function getType(){
        return NamedFieldType::create()
           ->set('price', UnitType::create()->setUnit('$')->setDecimals(2));
    }
}

// Then in you're view:

$myObject = new MyObject();
echo $myObject->getType('price')->valueToString($myObject->price);

Where this seems to be very clumsy it offers its powers in big applications or big data centric applications. Imagine you have a class customer:

   class Customer{
   
       public $id;
       public $doubts;
       public $lastLogin;
       public $taxes;
       
       public function getType(){
           $type = NamedField::create();
           $type->set('id', NumberType::create()->setNativeType('int'))
           $type->set('doubts', CurrencyType::create()->setCurrency('€'));
           $type->set('lastLogin', TemporalType::create();
           $type->set('taxes', PercentageType::create());
           return $type;
       }
   }
   
   $c = new Customer();
   
   foreach($c->getType() as $key=>$type){
       echo "\n$key=>".$type->valueToString($c->{$key});
   }

And in every part of youre application you can just forget any string formatting. But string formatting isn't the only usage of xtype. (i know about SOLID...)

Its on the other hand extremly useful to describe types. So you can build a database scheme of xtypes.

Another possibility is to scaffold forms with xtype.

Factory

To simply create an XType you can use XType\TemplateFactory::create($native) which creates a AbstractType by a native php variable.

Caution

This lib is in beta quality. The classes don't do much so it's not that dangerous to use em. So no docs or at this time