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<?php |
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namespace Fnash\GraphQL; |
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final class Fragment |
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{ |
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/** |
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* @var string |
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*/ |
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public $name; |
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/** |
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* @var string |
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*/ |
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public $type; |
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/** |
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* @var array |
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*/ |
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public $fields = []; |
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/** |
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* @param string $name |
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* @param string $type |
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* @param array $fields |
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* |
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* @return Fragment |
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*/ |
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public static function create(string $name, string $type, array $fields = []): Fragment |
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{ |
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return new self($name, $type, $fields); |
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} |
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/** |
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* @param array $fields |
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* |
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* @return Fragment |
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*/ |
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public function fields(array $fields = []): Fragment |
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{ |
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foreach ($fields as $fieldAlias => $field) { |
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if (\is_string($field)) { |
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if (\is_string($fieldAlias)) { |
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$this->fields[$fieldAlias] = $field; |
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} else { |
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$this->fields[$field] = $field; |
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} |
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} |
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if ($field instanceof Query) { |
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$this->fields[$fieldAlias] = $field; |
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} |
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} |
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ksort($this->fields); |
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return $this; |
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} |
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public function __toString() |
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{ |
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$query = sprintf('fragment %s on %s { %s }', $this->name, $this->type, static::printFields($this->fields)); |
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$query = \GraphQL\Language\Printer::doPrint(\GraphQL\Language\Parser::parse((string) $query)); |
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return $query; |
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} |
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/** |
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* @param array $value |
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* |
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* @return string |
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*/ |
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private static function printFields(array $value): string |
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{ |
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$fields = []; |
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foreach ($value as $fieldAlias => $field) { |
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$directive = ''; |
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if (\is_string($field)) { |
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if ($fieldAlias !== $field) { |
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$fields[] = sprintf('%s: %s %s', $fieldAlias, $field, $directive); |
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} else { |
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$fields[] = sprintf('%s %s', $field, $directive); |
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} |
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} |
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if ($field instanceof Query) { |
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if (null !== $field->type) { |
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$fieldAlias = sprintf('%s: %s', $fieldAlias, $field->type); |
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} |
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$fields[] = sprintf('%s %s { %s }', $fieldAlias, $directive, static::printFields($field->fields)); |
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} |
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} |
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return implode(', ', $fields); |
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} |
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/** |
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* @param string $name |
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* @param string $type |
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* @param array $fields |
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*/ |
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private function __construct(string $name, string $type, array $fields) |
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{ |
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$this->name = $name; |
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$this->type = $type; |
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$this->fields($fields); |
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} |
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} |
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fnash /
graphql-qb
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