digiaonline /
graphql-php
| Total Complexity | 69 |
| Total Lines | 554 |
| Duplicated Lines | 0 % |
| Changes | 0 | ||
Complex classes like ValuesResolver often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use ValuesResolver, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
||
| 36 | class ValuesResolver |
||
| 37 | { |
||
| 38 | /** |
||
| 39 | * Prepares an object map of argument values given a list of argument |
||
| 40 | * definitions and list of argument AST nodes. |
||
| 41 | * |
||
| 42 | * @see https://facebook.github.io/graphql/October2016/#CoerceArgumentValues() |
||
| 43 | * |
||
| 44 | * @param Field|Directive $definition |
||
| 45 | * @param ArgumentsAwareInterface $node |
||
| 46 | * @param array $variableValues |
||
| 47 | * @return array |
||
| 48 | * @throws ExecutionException |
||
| 49 | * @throws InvalidTypeException |
||
| 50 | * @throws InvariantException |
||
| 51 | */ |
||
| 52 | public function coerceArgumentValues($definition, ArgumentsAwareInterface $node, array $variableValues = []): array |
||
| 53 | { |
||
| 54 | $coercedValues = []; |
||
| 55 | $argumentDefinitions = $definition->getArguments(); |
||
| 56 | $argumentNodes = $node->getArguments(); |
||
| 57 | |||
| 58 | if (empty($argumentDefinitions)) { |
||
| 59 | return $coercedValues; |
||
| 60 | } |
||
| 61 | |||
| 62 | /** @var ArgumentNode[] $argumentNodeMap */ |
||
| 63 | $argumentNodeMap = keyMap($argumentNodes, function (ArgumentNode $value) { |
||
| 64 | return $value->getNameValue(); |
||
| 65 | }); |
||
| 66 | |||
| 67 | foreach ($argumentDefinitions as $argumentDefinition) { |
||
| 68 | $argumentName = $argumentDefinition->getName(); |
||
| 69 | $argumentType = $argumentDefinition->getType(); |
||
| 70 | $argumentNode = $argumentNodeMap[$argumentName] ?? null; |
||
| 71 | $defaultValue = $argumentDefinition->getDefaultValue(); |
||
| 72 | $argumentValue = null !== $argumentNode ? $argumentNode->getValue() : null; |
||
| 73 | |||
| 74 | if (null === $argumentNode) { |
||
| 75 | if (null !== $defaultValue) { |
||
| 76 | $coercedValues[$argumentName] = $defaultValue; |
||
| 77 | } elseif ($argumentType instanceof NonNullType) { |
||
| 78 | throw new ExecutionException( |
||
| 79 | sprintf( |
||
| 80 | 'Argument "%s" of required type "%s" was not provided.', |
||
| 81 | $argumentName, |
||
| 82 | $argumentType |
||
| 83 | ), |
||
| 84 | [$node] |
||
| 85 | ); |
||
| 86 | } |
||
| 87 | } elseif ($argumentValue instanceof VariableNode) { |
||
| 88 | $coercedValues[$argumentName] = $this->coerceValueForVariableNode( |
||
| 89 | $argumentValue, |
||
| 90 | $argumentType, |
||
|
Bug
introduced
by
|
|||
| 91 | $argumentName, |
||
| 92 | $variableValues, |
||
| 93 | $defaultValue |
||
| 94 | ); |
||
| 95 | } else { |
||
| 96 | try { |
||
| 97 | $coercedValues[$argumentName] = ValueASTConverter::convert( |
||
| 98 | $argumentNode->getValue(), |
||
| 99 | $argumentType, |
||
| 100 | $variableValues |
||
| 101 | ); |
||
| 102 | } catch (\Exception $ex) { |
||
| 103 | // Value nodes that cannot be resolved should be treated as invalid values |
||
| 104 | // because there is no undefined value in PHP so that we throw an exception |
||
| 105 | throw new ExecutionException( |
||
| 106 | sprintf( |
||
| 107 | 'Argument "%s" has invalid value %s.', |
||
| 108 | $argumentName, |
||
| 109 | (string)$argumentNode->getValue() |
||
| 110 | ), |
||
| 111 | [$argumentNode->getValue()], |
||
| 112 | null, |
||
| 113 | null, |
||
| 114 | null, |
||
| 115 | null, |
||
| 116 | $ex |
||
| 117 | ); |
||
| 118 | } |
||
| 119 | } |
||
| 120 | } |
||
| 121 | |||
| 122 | return $coercedValues; |
||
| 123 | } |
||
| 124 | |||
| 125 | /** |
||
| 126 | * Prepares an object map of argument values given a directive definition |
||
| 127 | * and a AST node which may contain directives. Optionally also accepts a map |
||
| 128 | * of variable values. |
||
| 129 | * |
||
| 130 | * If the directive does not exist on the node, returns null. |
||
| 131 | * |
||
| 132 | * @param Directive $directive |
||
| 133 | * @param mixed $node |
||
| 134 | * @param array $variableValues |
||
| 135 | * @return array|null |
||
| 136 | * @throws ExecutionException |
||
| 137 | * @throws InvalidTypeException |
||
| 138 | * @throws InvariantException |
||
| 139 | */ |
||
| 140 | public function coerceDirectiveValues( |
||
| 141 | Directive $directive, |
||
| 142 | $node, |
||
| 143 | array $variableValues = [] |
||
| 144 | ): ?array { |
||
| 145 | $directiveNode = $node->hasDirectives() |
||
| 146 | ? find($node->getDirectives(), function (NameAwareInterface $value) use ($directive) { |
||
| 147 | return $value->getNameValue() === $directive->getName(); |
||
| 148 | }) : null; |
||
| 149 | |||
| 150 | if (null !== $directiveNode) { |
||
| 151 | return $this->coerceArgumentValues($directive, $directiveNode, $variableValues); |
||
| 152 | } |
||
| 153 | |||
| 154 | return null; |
||
| 155 | } |
||
| 156 | |||
| 157 | /** |
||
| 158 | * Prepares an object map of variableValues of the correct type based on the |
||
| 159 | * provided variable definitions and arbitrary input. If the input cannot be |
||
| 160 | * parsed to match the variable definitions, a GraphQLError will be thrown. |
||
| 161 | * |
||
| 162 | * @param Schema $schema |
||
| 163 | * @param array|VariableDefinitionNode[] $variableDefinitionNodes |
||
| 164 | * @param array $inputs |
||
| 165 | * @return CoercedValue |
||
| 166 | * @throws GraphQLException |
||
| 167 | * @throws InvariantException |
||
| 168 | * @throws ConversionException |
||
| 169 | */ |
||
| 170 | public function coerceVariableValues(Schema $schema, array $variableDefinitionNodes, array $inputs): CoercedValue |
||
| 171 | { |
||
| 172 | $coercedValues = []; |
||
| 173 | $errors = []; |
||
| 174 | |||
| 175 | foreach ($variableDefinitionNodes as $variableDefinitionNode) { |
||
| 176 | $variableName = $variableDefinitionNode->getVariable()->getNameValue(); |
||
| 177 | $variableType = TypeASTConverter::convert($schema, $variableDefinitionNode->getType()); |
||
| 178 | |||
| 179 | if (!$this->isInputType($variableType)) { |
||
| 180 | $variableTypeName = (string)$variableType; |
||
| 181 | |||
| 182 | if ($variableTypeName === '') { |
||
| 183 | $variableTypeName = (string)$variableDefinitionNode; |
||
| 184 | } |
||
| 185 | |||
| 186 | $errors[] = $this->buildCoerceException( |
||
| 187 | sprintf( |
||
| 188 | 'Variable "$%s" expected value of type "%s" which cannot be used as an input type', |
||
| 189 | $variableName, |
||
| 190 | $variableTypeName |
||
| 191 | ), |
||
| 192 | $variableDefinitionNode, |
||
| 193 | null |
||
| 194 | ); |
||
| 195 | } else { |
||
| 196 | if (!array_key_exists($variableName, $inputs)) { |
||
| 197 | if ($variableType instanceof NonNullType) { |
||
| 198 | $errors[] = $this->buildCoerceException( |
||
| 199 | sprintf( |
||
| 200 | 'Variable "$%s" of required type "%s" was not provided', |
||
| 201 | $variableName, |
||
| 202 | (string)$variableType |
||
| 203 | ), |
||
| 204 | $variableDefinitionNode, |
||
| 205 | null |
||
| 206 | ); |
||
| 207 | } elseif ($variableDefinitionNode->getDefaultValue() !== null) { |
||
| 208 | $coercedValues[$variableName] = ValueASTConverter::convert( |
||
| 209 | $variableDefinitionNode->getDefaultValue(), |
||
| 210 | $variableType |
||
| 211 | ); |
||
| 212 | } |
||
| 213 | } else { |
||
| 214 | $value = $inputs[$variableName]; |
||
| 215 | $coercedValue = $this->coerceValue($value, $variableType, $variableDefinitionNode); |
||
| 216 | if ($coercedValue->hasErrors()) { |
||
| 217 | $messagePrelude = sprintf( |
||
| 218 | 'Variable "$%s" got invalid value %s', |
||
| 219 | $variableName, json_encode($value) |
||
| 220 | ); |
||
| 221 | foreach ($coercedValue->getErrors() as $error) { |
||
| 222 | $errors[] = $this->buildCoerceException( |
||
| 223 | $messagePrelude, |
||
| 224 | $variableDefinitionNode, |
||
| 225 | null, |
||
| 226 | $error->getMessage(), |
||
| 227 | $error |
||
| 228 | ); |
||
| 229 | } |
||
| 230 | } else { |
||
| 231 | $coercedValues[$variableName] = $coercedValue->getValue(); |
||
| 232 | } |
||
| 233 | } |
||
| 234 | } |
||
| 235 | } |
||
| 236 | |||
| 237 | return new CoercedValue($coercedValues, $errors); |
||
| 238 | } |
||
| 239 | |||
| 240 | |||
| 241 | /** |
||
| 242 | * @param TypeInterface|null $type |
||
| 243 | * @return bool |
||
| 244 | */ |
||
| 245 | protected function isInputType(?TypeInterface $type) |
||
| 246 | { |
||
| 247 | return ($type instanceof ScalarType) || |
||
| 248 | ($type instanceof EnumType) || |
||
| 249 | ($type instanceof InputObjectType) || |
||
| 250 | (($type instanceof WrappingTypeInterface) && $this->isInputType($type->getOfType())); |
||
| 251 | } |
||
| 252 | |||
| 253 | /** |
||
| 254 | * Returns either a value which is valid for the provided type or a list of |
||
| 255 | * encountered coercion errors. |
||
| 256 | * |
||
| 257 | * @param mixed|array $value |
||
| 258 | * @param mixed $type |
||
| 259 | * @param NodeInterface $blameNode |
||
| 260 | * @param Path|null $path |
||
| 261 | * @return CoercedValue |
||
| 262 | * @throws GraphQLException |
||
| 263 | * @throws InvariantException |
||
| 264 | */ |
||
| 265 | private function coerceValue($value, $type, $blameNode, ?Path $path = null): CoercedValue |
||
| 266 | { |
||
| 267 | if ($type instanceof NonNullType) { |
||
| 268 | return $this->coerceValueForNonNullType($value, $type, $blameNode, $path); |
||
| 269 | } |
||
| 270 | |||
| 271 | if (null === $value) { |
||
| 272 | return new CoercedValue(null); |
||
| 273 | } |
||
| 274 | |||
| 275 | if ($type instanceof ScalarType) { |
||
| 276 | return $this->coerceValueForScalarType($value, $type, $blameNode, $path); |
||
| 277 | } |
||
| 278 | |||
| 279 | if ($type instanceof EnumType) { |
||
| 280 | return $this->coerceValueForEnumType($value, $type, $blameNode, $path); |
||
| 281 | } |
||
| 282 | |||
| 283 | if ($type instanceof ListType) { |
||
| 284 | return $this->coerceValueForListType($value, $type, $blameNode, $path); |
||
| 285 | } |
||
| 286 | |||
| 287 | if ($type instanceof InputObjectType) { |
||
| 288 | return $this->coerceValueForInputObjectType($value, $type, $blameNode, $path); |
||
| 289 | } |
||
| 290 | |||
| 291 | throw new GraphQLException('Unexpected type.'); |
||
| 292 | } |
||
| 293 | |||
| 294 | /** |
||
| 295 | * @param mixed $value |
||
| 296 | * @param NonNullType $type |
||
| 297 | * @param NodeInterface $blameNode |
||
| 298 | * @param Path|null $path |
||
| 299 | * @return CoercedValue |
||
| 300 | * @throws GraphQLException |
||
| 301 | * @throws InvariantException |
||
| 302 | */ |
||
| 303 | protected function coerceValueForNonNullType( |
||
| 304 | $value, |
||
| 305 | NonNullType $type, |
||
| 306 | NodeInterface $blameNode, |
||
| 307 | ?Path $path |
||
| 308 | ): CoercedValue { |
||
| 309 | if (null === $value) { |
||
| 310 | return new CoercedValue(null, [ |
||
| 311 | $this->buildCoerceException( |
||
| 312 | sprintf('Expected non-nullable type %s not to be null', (string)$type), |
||
| 313 | $blameNode, |
||
| 314 | $path |
||
| 315 | ) |
||
| 316 | ]); |
||
| 317 | } |
||
| 318 | return $this->coerceValue($value, $type->getOfType(), $blameNode, $path); |
||
| 319 | } |
||
| 320 | |||
| 321 | /** |
||
| 322 | * Scalars determine if a value is valid via parseValue(), which can |
||
| 323 | * throw to indicate failure. If it throws, maintain a reference to |
||
| 324 | * the original error. |
||
| 325 | * |
||
| 326 | * @param mixed $value |
||
| 327 | * @param ScalarType $type |
||
| 328 | * @param NodeInterface $blameNode |
||
| 329 | * @param Path|null $path |
||
| 330 | * @return CoercedValue |
||
| 331 | */ |
||
| 332 | protected function coerceValueForScalarType( |
||
| 333 | $value, |
||
| 334 | ScalarType $type, |
||
| 335 | NodeInterface $blameNode, |
||
| 336 | ?Path $path |
||
| 337 | ): CoercedValue { |
||
| 338 | try { |
||
| 339 | $parseResult = $type->parseValue($value); |
||
| 340 | if (null === $parseResult) { |
||
| 341 | return new CoercedValue(null, [ |
||
| 342 | new GraphQLException(sprintf('Expected type %s', (string)$type)) |
||
| 343 | ]); |
||
| 344 | } |
||
| 345 | return new CoercedValue($parseResult); |
||
| 346 | } catch (InvalidTypeException|CoercingException $ex) { |
||
| 347 | return new CoercedValue(null, [ |
||
| 348 | $this->buildCoerceException( |
||
| 349 | sprintf('Expected type %s', (string)$type), |
||
| 350 | $blameNode, |
||
| 351 | $path, |
||
| 352 | $ex->getMessage(), |
||
| 353 | $ex |
||
| 354 | ) |
||
| 355 | ]); |
||
| 356 | } |
||
| 357 | } |
||
| 358 | |||
| 359 | /** |
||
| 360 | * @param mixed $value |
||
| 361 | * @param EnumType $type |
||
| 362 | * @param NodeInterface $blameNode |
||
| 363 | * @param Path|null $path |
||
| 364 | * @return CoercedValue |
||
| 365 | * @throws InvariantException |
||
| 366 | */ |
||
| 367 | protected function coerceValueForEnumType( |
||
| 368 | $value, |
||
| 369 | EnumType $type, |
||
| 370 | NodeInterface $blameNode, |
||
| 371 | ?Path $path |
||
| 372 | ): CoercedValue { |
||
| 373 | if (\is_string($value) && null !== ($enumValue = $type->getValue($value))) { |
||
| 374 | return new CoercedValue($enumValue); |
||
| 375 | } |
||
| 376 | |||
| 377 | $suggestions = suggestionList((string)$value, \array_map(function (EnumValue $enumValue) { |
||
| 378 | return $enumValue->getName(); |
||
| 379 | }, $type->getValues())); |
||
| 380 | |||
| 381 | $didYouMean = (!empty($suggestions)) |
||
| 382 | ? 'did you mean' . \implode(',', $suggestions) |
||
| 383 | : null; |
||
| 384 | |||
| 385 | return new CoercedValue(null, [ |
||
| 386 | $this->buildCoerceException(\sprintf('Expected type %s', $type->getName()), $blameNode, $path, $didYouMean) |
||
| 387 | ]); |
||
| 388 | } |
||
| 389 | |||
| 390 | /** |
||
| 391 | * @param mixed $value |
||
| 392 | * @param InputObjectType $type |
||
| 393 | * @param NodeInterface $blameNode |
||
| 394 | * @param Path|null $path |
||
| 395 | * @return CoercedValue |
||
| 396 | * @throws GraphQLException |
||
| 397 | * @throws InvariantException |
||
| 398 | */ |
||
| 399 | protected function coerceValueForInputObjectType( |
||
| 400 | $value, |
||
| 401 | InputObjectType $type, |
||
| 402 | NodeInterface $blameNode, |
||
| 403 | ?Path $path |
||
| 404 | ): CoercedValue { |
||
| 405 | $errors = []; |
||
| 406 | $coercedValues = []; |
||
| 407 | $fields = $type->getFields(); |
||
| 408 | |||
| 409 | // Ensure every defined field is valid. |
||
| 410 | foreach ($fields as $field) { |
||
| 411 | $fieldType = $field->getType(); |
||
| 412 | |||
| 413 | if (!isset($value[$field->getName()])) { |
||
| 414 | if (!empty($field->getDefaultValue())) { |
||
| 415 | $coercedValue[$field->getName()] = $field->getDefaultValue(); |
||
| 416 | } elseif ($fieldType instanceof NonNullType) { |
||
| 417 | $errors[] = new GraphQLException( |
||
| 418 | \sprintf( |
||
| 419 | "Field %s of required type %s! was not provided.", |
||
| 420 | $this->printPath(new Path($path, $field->getName())), |
||
| 421 | (string)$fieldType->getOfType() |
||
| 422 | ) |
||
| 423 | ); |
||
| 424 | } |
||
| 425 | } else { |
||
| 426 | $fieldValue = $value[$field->getName()]; |
||
| 427 | $coercedValue = $this->coerceValue( |
||
| 428 | $fieldValue, |
||
| 429 | $fieldType, |
||
| 430 | $blameNode, |
||
| 431 | new Path($path, $field->getName()) |
||
| 432 | ); |
||
| 433 | |||
| 434 | if ($coercedValue->hasErrors()) { |
||
| 435 | $errors = \array_merge($errors, $coercedValue->getErrors()); |
||
| 436 | } elseif (empty($errors)) { |
||
| 437 | $coercedValues[$field->getName()] = $coercedValue->getValue(); |
||
| 438 | } |
||
| 439 | } |
||
| 440 | } |
||
| 441 | |||
| 442 | // Ensure every provided field is defined. |
||
| 443 | foreach ($value as $fieldName => $fieldValue) { |
||
| 444 | if (!isset($fields[$fieldName])) { |
||
| 445 | $suggestions = suggestionList($fieldName, \array_keys($fields)); |
||
| 446 | $didYouMean = (!empty($suggestions)) |
||
| 447 | ? 'did you mean' . \implode(',', $suggestions) |
||
| 448 | : null; |
||
| 449 | |||
| 450 | $errors[] = $this->buildCoerceException( |
||
| 451 | \sprintf('Field "%s" is not defined by type %s', $fieldName, $type->getName()), |
||
| 452 | $blameNode, |
||
| 453 | $path, |
||
| 454 | $didYouMean |
||
| 455 | ); |
||
| 456 | } |
||
| 457 | } |
||
| 458 | |||
| 459 | return new CoercedValue($coercedValues, $errors); |
||
| 460 | } |
||
| 461 | |||
| 462 | /** |
||
| 463 | * @param mixed $value |
||
| 464 | * @param ListType $type |
||
| 465 | * @param NodeInterface $blameNode |
||
| 466 | * @param Path|null $path |
||
| 467 | * @return CoercedValue |
||
| 468 | * @throws GraphQLException |
||
| 469 | * @throws InvariantException |
||
| 470 | */ |
||
| 471 | protected function coerceValueForListType( |
||
| 472 | $value, |
||
| 473 | ListType $type, |
||
| 474 | NodeInterface $blameNode, |
||
| 475 | ?Path $path |
||
| 476 | ): CoercedValue { |
||
| 477 | $itemType = $type->getOfType(); |
||
| 478 | |||
| 479 | if (\is_array($value) || $value instanceof \Traversable) { |
||
| 480 | $errors = []; |
||
| 481 | $coercedValues = []; |
||
| 482 | foreach ($value as $index => $itemValue) { |
||
| 483 | $coercedValue = $this->coerceValue($itemValue, $itemType, $blameNode, new Path($path, $index)); |
||
| 484 | |||
| 485 | if ($coercedValue->hasErrors()) { |
||
| 486 | $errors = \array_merge($errors, $coercedValue->getErrors()); |
||
| 487 | } else { |
||
| 488 | $coercedValues[] = $coercedValue->getValue(); |
||
| 489 | } |
||
| 490 | } |
||
| 491 | |||
| 492 | return new CoercedValue($coercedValues, $errors); |
||
| 493 | } |
||
| 494 | |||
| 495 | // Lists accept a non-list value as a list of one. |
||
| 496 | $coercedValue = $this->coerceValue($value, $itemType, $blameNode); |
||
| 497 | |||
| 498 | return new CoercedValue([$coercedValue->getValue()], $coercedValue->getErrors()); |
||
| 499 | } |
||
| 500 | |||
| 501 | /** |
||
| 502 | * @param string $message |
||
| 503 | * @param NodeInterface $blameNode |
||
| 504 | * @param Path|null $path |
||
| 505 | * @param null|string $subMessage |
||
| 506 | * @param GraphQLException|null $originalException |
||
| 507 | * @return GraphQLException |
||
| 508 | */ |
||
| 509 | protected function buildCoerceException( |
||
| 510 | string $message, |
||
| 511 | NodeInterface $blameNode, |
||
| 512 | ?Path $path, |
||
| 513 | ?string $subMessage = null, |
||
| 514 | ?GraphQLException $originalException = null |
||
| 515 | ) { |
||
| 516 | $stringPath = $this->printPath($path); |
||
| 517 | |||
| 518 | return new CoercingException( |
||
| 519 | $message . |
||
| 520 | (($stringPath !== '') ? ' at ' . $stringPath : $stringPath) . |
||
| 521 | (($subMessage !== null) ? '; ' . $subMessage : '.'), |
||
| 522 | [$blameNode], |
||
| 523 | null, |
||
| 524 | null, |
||
| 525 | // TODO: Change this to null |
||
| 526 | [], |
||
| 527 | null, |
||
| 528 | $originalException |
||
| 529 | ); |
||
| 530 | } |
||
| 531 | |||
| 532 | /** |
||
| 533 | * @param Path|null $path |
||
| 534 | * @return string |
||
| 535 | */ |
||
| 536 | protected function printPath(?Path $path) |
||
| 550 | } |
||
| 551 | |||
| 552 | /** |
||
| 553 | * @param VariableNode $variableNode |
||
| 554 | * @param TypeInterface $argumentType |
||
| 555 | * @param string $argumentName |
||
| 556 | * @param array $variableValues |
||
| 557 | * @param mixed $defaultValue |
||
| 558 | * @return mixed |
||
| 559 | * @throws ExecutionException |
||
| 560 | */ |
||
| 561 | protected function coerceValueForVariableNode( |
||
| 590 | ); |
||
| 591 | } |
||
| 592 | } |
||
| 593 | } |
||
| 594 |
Loading history...
