ValueProvider allow you to access to your object's property value without knowing the way the object have defined to do so.
Property, getter/setter? Let's GuessProvider take care of this.
Can access to object's properties values:
- With direct property access (like
$myObject->myProperty)- Works with magic
__getand__set(see below for examples and restriction) - Works with
protectedandprivateproperties (see below for examples and restriction)
- Works with magic
- With mutator (getter/setter) (like
$myObject->getMyProperty()and$myObject->setMyProperty('new value'))- Works with magic
__call(see below for examples and restriction)
- Works with magic
- With doctrine
Metadata(see below for examples)
composer require macfja/value-provider
Class Person
class Person {
public $firstName = '';
public $lastName = '';
}Somewhere in your code
$jdoe = new Person();
$provider = new PropertyProvider();
// ...
$provider->setValue($jdoe, 'firstName', 'John');
$provider->setValue($jdoe, 'lastName', 'Doe');
// ...
echo 'Hello ' . $provider->getValue($jdoe, 'firstName') . ' ' . $provider->getValue($jdoe, 'lastName');
//Output : "Hello John Doe"The properties have to be public to be accessed. (For protected and private properties, see ReflectorProvider)
Class Person
class Person {
private $_firstName = 'John';
private $_lastName = 'Doe';
function __get($name) {
if (in_array($name, array('firstName', 'lastName')) {
$propertyName = '_' . $name;
return $this->$propertyName;
}
throw new \BadFunctionCallException;
}
function __set($name, $value) {
if (in_array($name, array('firstName', 'lastName')) {
$propertyName = '_' . $name;
$this->$propertyName = $value;
return;
}
throw new \BadFunctionCallException;
}
function __isset($name) {
return in_array($name, array('firstName', 'lastName');
}
}Somewhere in your code
$jdoe = new Person();
$provider = new PropertyProvider();
// ...
$provider->setValue($jdoe, 'firstName', 'John');
$provider->setValue($jdoe, 'lastName', 'Doe');
// ...
echo 'Hello ' . $provider->getValue($jdoe, 'firstName') . ' ' . $provider->getValue($jdoe, 'lastName');
//Output : "Hello John Doe"The class rely on the __isset function to know if the property can be used with __get and __set
Class Person
class Person {
private $_firstName = '';
private $_lastName = '';
private $_known = true;
public function getFirstName() {
return $this->_firstName;
}
public function setFirstName($value) {
$this->_firstName = $value;
}
public function getLastName() {
return $this->_lastName;
}
public function setLastName($value) {
$this->_firstName = $value;
}
public function isKnown() {
return $this->_known;
}
public function setKnown($flag) {
$this->_known = $flag;
}
}Somewhere in your code
$jdoe = new Person();
$provider = new MutatorProvider();
// ...
$provider->setValue($jdoe, 'firstName', 'John');
$provider->setValue($jdoe, 'lastName', 'Doe');
$provider->setValue($jdoe, 'known', false);
// ...
echo 'Hello ' . $provider->getValue($jdoe, 'firstName') . ' ' . $provider->getValue($jdoe, 'lastName');
echo ', you are ' . ($provider->getValue($jdoe, 'known') ? '' : 'un') . 'known';
//Output : "Hello John Doe, you are unknown"The mutator have to be public to be accessed. Getter are search in this order
- getMyProperty
- isMyProperty
Class Person
class Person {
private $_firstName = 'John';
private $_lastName = 'Doe';
private $_known = true;
function __call($name, $arguments) {
switch ($name) {
case 'getFirstName':
return $this->_firstName;
case 'getLastName':
return $this->_lastName;
case 'isKnown':
return $this->_known;
case 'setFirstName':
$this->_firstName = $argument[0];
return;
case 'setLastName':
$this->_lastName = $argument[0];
return;
case 'setKnown':
$this->_known = $argument[0];
return;
}
throw new \BadFunctionCallException;
}
}Somewhere in your code
$jdoe = new Person();
$provider = new MutatorProvider();
// ...
$provider->setValue($jdoe, 'firstName', 'John');
$provider->setValue($jdoe, 'lastName', 'Doe');
$provider->setValue($jdoe, 'known', false);
// ...
echo 'Hello ' . $provider->getValue($jdoe, 'firstName') . ' ' . $provider->getValue($jdoe, 'lastName');
echo ', you are ' . ($provider->getValue($jdoe, 'known') ? '' : 'un') . 'known';
//Output : "Hello John Doe, you are unknown"The class rely on the implementation of the __call function:
the function MUST throw either \BadFunctionCallException or \InvalidArgumentException if the getter/setter doesn't exist
Somewhere in your code
/** @type EntityManager $entityManager */
$class = 'MyClass';
$id = 1234;
$provider = new MetadataProvider();
MetadataProvider::setEntityManager($entityManager);
jdoe = $entityManager->find($class, $id);
// ...
$provider->setValue($jdoe, 'firstName', 'John');
$provider->setValue($jdoe, 'lastName', 'Doe');
$provider->setValue($jdoe, 'known', false);
// ...
echo 'Hello ' . $provider->getValue($jdoe, 'firstName') . ' ' . $provider->getValue($jdoe, 'lastName');
echo ', you are ' . ($provider->getValue($jdoe, 'known') ? '' : 'un') . 'known';
//Output : "Hello John Doe, you are unknown"You have to set the Doctrine EntityManager to the MetadataProvider
Class Person
class Person {
public $firstName = 'John';
protected $lastName = 'Doe';
private $known = true;
}Somewhere in your code
$jdoe = new Person();
$provider = new ReflectorProvider();
// ...
$provider->setValue($jdoe, 'firstName', 'John');
$provider->setValue($jdoe, 'lastName', 'Doe');
$provider->setValue($jdoe, 'known', false);
// ...
echo 'Hello ' . $provider->getValue($jdoe, 'firstName') . ' ' . $provider->getValue($jdoe, 'lastName');
echo ', you are ' . ($provider->getValue($jdoe, 'known') ? '' : 'un') . 'known';
//Output : "Hello John Doe, you are unknown"The class can access to private/protected property if you are running PHP 5.3 or newer
This class try to access to the value with mutator or property or reflection. It first try the mutator, if not success then try the property, and finish by trying with reflector.
This class allow you to try through multiple Provider.
For instance, the GuessProvider is based on the ChainProvider.
This library respect PSR-1, PSR-2, PSR-4. It have PHPUnit tests for each provider.
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