/**
* @return \DataDefinition\Data\ValueInterface
*/
public function execute()
{
$key = $this->field->getName();
if (isset($this->object[$key])) {
return $this->object->getValue($key);
}
return new NullValue();
}
/**
* Apply this patch to an object.
*
* @param \DataDefinition\Data\ObjectInterface $object
*
* @return \DataDefinition\Data\ObjectInterface
*/
public function applyObject(ObjectInterface $object)
{
// Get the newly modified structure.
$structure = $this->applyStructure($object->getStructure());
// Get the original values from the object.
$values = array();
foreach ($object as $key => $value) {
$values[$key] = $value->getValue();
}
// Get the name and the default value for the field.
$name = $this->field->getName();
$value = $this->field->getValue()->getValue();
// Apply the patching.
switch ($this->type) {
case 'add':
if (!array_key_exists($name, $values)) {
$values[$name] = $value;
}
break;
case 'remove':
if (array_key_exists($name, $values)) {
unset($values[$name]);
}
break;
case 'replace':
if (array_key_exists($name, $values)) {
$values[$name] = $value;
}
break;
case 'copy':
$original = $this->original->getName();
if (array_key_exists($original, $values) && !array_key_exists($name, $values)) {
$values[$name] = $values[$original];
}
break;
case 'move':
$original = $this->original->getName();
if (array_key_exists($original, $values) && !array_key_exists($name, $values)) {
$values[$name] = $values[$original];
unset($values[$original]);
}
break;
}
// Create a new object.
$class = get_class($object);
$patched = new $class($structure, $object->getIdentifier(), $object->getOptions());
// Apply new values to the patched object.
foreach ($values as $key => $value) {
$patched[$key] = $value;
}
// Return the newly patched object.
return $patched;
}
/**
* Add
*
*@param \DataDefinition\Data\FieldInterface $field
*
* @return void
*/
protected function addField(FieldInterface $field)
{
$this->patches[] = new Patch('add', $field, new NullField($field->getName()));
$this->fields[$field->getName()] = $field;
}
/**
* {@inheritdoc}
*/
public function getValue()
{
return (new ArrayValue($this->field->getValue(), $this->constructor))->setConfig($this->getConfig());
}