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<?php |
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namespace LAG\AdminBundle\Field\Factory; |
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use Exception; |
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use LAG\AdminBundle\Application\Configuration\ApplicationConfiguration; |
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use LAG\AdminBundle\Configuration\Factory\ConfigurationFactory; |
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use LAG\AdminBundle\Field\Field; |
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use LAG\AdminBundle\Field\FieldInterface; |
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use LAG\AdminBundle\Field\TwigFieldInterface; |
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use LAG\AdminBundle\Field\TranslatableFieldInterface; |
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use Symfony\Component\OptionsResolver\OptionsResolver; |
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use Symfony\Component\Translation\TranslatorInterface; |
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use Twig_Environment; |
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/** |
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* Field factory. Instances fields with its renderer. |
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*/ |
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class FieldFactory |
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{ |
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/** |
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* Application configuration |
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* |
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* @var ApplicationConfiguration |
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*/ |
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protected $configuration; |
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/** |
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* Field class mapping array, indexed by field type. |
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* |
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* @var array |
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*/ |
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protected $fieldsMapping = []; |
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/** |
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* Translator for field values. |
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* |
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* @var TranslatorInterface |
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*/ |
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protected $translator; |
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/** |
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* Twig engine. |
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* |
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* @var Twig_Environment |
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*/ |
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protected $twig; |
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/** |
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* FieldFactory constructor. |
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* |
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* @param ConfigurationFactory $configurationFactory |
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* @param TranslatorInterface $translator |
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* @param Twig_Environment $twig |
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*/ |
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public function __construct( |
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ConfigurationFactory $configurationFactory, |
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TranslatorInterface $translator, |
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Twig_Environment $twig |
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) { |
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$this->configuration = $configurationFactory->getApplicationConfiguration(); |
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$this->fieldsMapping = $this |
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->configuration |
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->getParameter('fields_mapping'); // shortcut to field mapping array |
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$this->translator = $translator; |
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$this->twig = $twig; |
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} |
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/** |
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* Create a new field with its renderer. |
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* |
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* @param $fieldName |
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* @param array $configuration |
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* |
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* @return Field |
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* |
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* @throws Exception |
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*/ |
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public function create($fieldName, array $configuration = []) |
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{ |
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$resolver = new OptionsResolver(); |
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$resolver->setDefaults([ |
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'type' => 'string', |
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'options' => [], |
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]); |
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// set allowed fields type from tagged services |
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$resolver->setAllowedValues('type', array_keys($this->fieldsMapping)); |
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$resolver->setAllowedTypes('type', 'string'); |
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$resolver->setAllowedTypes('options', 'array'); |
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// resolve options |
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$configuration = $resolver->resolve($configuration); |
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// for collection of fields, we resolve the configuration of each item |
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if ($configuration['type'] == 'collection') { |
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$items = []; |
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foreach ($configuration['options'] as $itemFieldName => $itemFieldConfiguration) { |
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// configuration should be an array |
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if (!$itemFieldConfiguration) { |
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$itemFieldConfiguration = []; |
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} |
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// type should exists |
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if (!array_key_exists('type', $configuration)) { |
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throw new Exception("Missing type configuration for field {$itemFieldName}"); |
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} |
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// create collection item |
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$items[] = $this->create($itemFieldName, $itemFieldConfiguration); |
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} |
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// add created item to the field options |
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$configuration['options'] = [ |
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'fields' => $items, |
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]; |
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} |
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// instanciate field |
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$fieldClass = $this->getFieldMapping($configuration['type']); |
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$field = new $fieldClass(); |
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if (!($field instanceof FieldInterface)) { |
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throw new Exception("Field class {$fieldClass} must implements ".FieldInterface::class); |
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} |
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$field->setName($fieldName); |
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$field->setApplicationConfiguration($this->configuration); |
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if ($field instanceof TranslatableFieldInterface) { |
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$field->setTranslator($this->translator); |
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} |
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if ($field instanceof TwigFieldInterface) { |
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$field->setTwig($this->twig); |
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} |
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// clear revolver from previous default configuration |
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$resolver->clear(); |
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// configure field default options |
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$field->configureOptions($resolver); |
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// resolve options |
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$options = $resolver->resolve($configuration['options']); |
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// set options |
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$field->setOptions($options); |
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return $field; |
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} |
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/** |
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* Return field class according to the field type. If the type is not present in the field mapping array, an |
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* exception will be thrown. |
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* |
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* @param $type |
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* @return string |
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* @throws Exception |
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*/ |
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public function getFieldMapping($type) |
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{ |
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if (!array_key_exists($type, $this->fieldsMapping)) { |
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throw new Exception("Field type {$type} not found in field mapping. Check your configuration"); |
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} |
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return $this->fieldsMapping[$type]; |
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} |
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} |
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larriereguichet /
AdminBundle
