public function __construct()
{
parent::__construct();
// Add the Fields that are part of this FieldCollection and necessary
// to create/edit a blog post
//
// This is independent of Display/UI
$this->addFields((new Field\Entry((new DataType\Str())->setMinLength(3), 'nickname'))->setRequired(), (new Field\Entry(new DataType\Email(), 'email'))->setDefault('*****@*****.**'), (new Field\Entry(new DataType\Str(), 'text'))->setRequired());
// A ValueMapper to map Fields to properties of an object:
// All Fields of the FieldCollection will use the same ValueMapStrategy and their ID as object's property ("DefaultValueMapper")
// form data will be inserted into a new BlogPost() – properties are public, therefore the MAP_PUBLIC-strategy can be used
$this->addDefaultValueMapper(new BlogPost(), ValueMapStrategy::MAP_PUBLIC);
}
/**
* Returns all Fields of a certain data type
*
* @param string $class
* @return FieldCollection
*/
public function getFieldsByDataType($class)
{
$retCollection = new FieldCollection();
foreach ($this->getFields() as $field) {
if (get_class($field->getDataType()) === $class) {
$retCollection->addField($field);
}
}
return $retCollection;
}
