vendor/webonyx/graphql-php/src/Type/Definition/TypeWithFields.php line 61

Open in your IDE?
  1. <?php
  3. declare(strict_types=1);
  5. namespace GraphQL\Type\Definition;
  7. use GraphQL\Utils\Utils;
  8. use function array_keys;
  10. abstract class TypeWithFields extends Type implements HasFieldsType
  11. {
  12.     /**
  13.      * Lazily initialized.
  14.      *
  15.      * @var array<string, FieldDefinition>
  16.      */
  17.     private $fields;
  19.     private function initializeFields() : void
  20.     {
  21.         if (isset($this->fields)) {
  22.             return;
  23.         }
  25.         $fields       = $this->config['fields'] ?? [];
  26.         $this->fields = FieldDefinition::defineFieldMap($this, $fields);
  27.     }
  29.     public function getField(string $name) : FieldDefinition
  30.     {
  31.         Utils::invariant($this->hasField($name), 'Field "%s" is not defined for type "%s"', $name, $this->name);
  33.         return $this->findField($name);
  34.     }
  36.     public function findField(string $name) : ?FieldDefinition
  37.     {
  38.         $this->initializeFields();
  40.         if (! isset($this->fields[$name])) {
  41.             return null;
  42.         }
  44.         if ($this->fields[$name] instanceof UnresolvedFieldDefinition) {
  45.             $this->fields[$name] = $this->fields[$name]->resolve();
  46.         }
  48.         return $this->fields[$name];
  49.     }
  51.     public function hasField(string $name) : bool
  52.     {
  53.         $this->initializeFields();
  55.         return isset($this->fields[$name]);
  56.     }
  58.     /** @inheritDoc */
  59.     public function getFields() : array
  60.     {
  61.         $this->initializeFields();
  63.         foreach ($this->fields as $name => $field) {
  64.             if (! ($field instanceof UnresolvedFieldDefinition)) {
  65.                 continue;
  66.             }
  68.             $this->fields[$name] = $field->resolve();
  69.         }
  71.         return $this->fields;
  72.     }
  74.     /** @inheritDoc */
  75.     public function getFieldNames() : array
  76.     {
  77.         $this->initializeFields();
  79.         return array_keys($this->fields);
  80.     }
  81. }