digiaonline /
graphql-php
| Total Complexity | 102 |
| Total Lines | 936 |
| Duplicated Lines | 0 % |
| Changes | 0 | ||
Complex classes like ExecutionStrategy 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 ExecutionStrategy, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 39 | abstract class ExecutionStrategy |
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| 40 | { |
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| 41 | /** |
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| 42 | * @var ExecutionContext |
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| 43 | */ |
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| 44 | protected $context; |
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| 45 | |||
| 46 | /** |
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| 47 | * @var OperationDefinitionNode |
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| 48 | */ |
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| 49 | protected $operation; |
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| 50 | |||
| 51 | /** |
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| 52 | * @var mixed |
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| 53 | */ |
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| 54 | protected $rootValue; |
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| 55 | |||
| 56 | |||
| 57 | /** |
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| 58 | * @var ValuesResolver |
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| 59 | */ |
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| 60 | protected $valuesResolver; |
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| 61 | |||
| 62 | /** |
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| 63 | * @var array |
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| 64 | */ |
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| 65 | protected $finalResult; |
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| 66 | |||
| 67 | /** |
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| 68 | * @var array |
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| 69 | */ |
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| 70 | protected static $defaultFieldResolver = [__CLASS__, 'defaultFieldResolver']; |
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| 71 | |||
| 72 | /** |
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| 73 | * AbstractStrategy constructor. |
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| 74 | * @param ExecutionContext $context |
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| 75 | * |
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| 76 | * @param OperationDefinitionNode $operation |
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| 77 | */ |
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| 78 | public function __construct( |
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| 79 | ExecutionContext $context, |
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| 80 | OperationDefinitionNode $operation, |
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| 81 | $rootValue |
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| 82 | ) { |
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| 83 | $this->context = $context; |
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| 84 | $this->operation = $operation; |
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| 85 | $this->rootValue = $rootValue; |
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| 86 | // TODO: Inject the ValuesResolver instance by using a builder for this class. |
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| 87 | $this->valuesResolver = new ValuesResolver(new ValueNodeCoercer()); |
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| 88 | } |
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| 89 | |||
| 90 | /** |
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| 91 | * @return array|null |
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| 92 | */ |
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| 93 | abstract function execute(): ?array; |
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| 94 | |||
| 95 | /** |
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| 96 | * @param ObjectType $runtimeType |
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| 97 | * @param SelectionSetNode $selectionSet |
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| 98 | * @param $fields |
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| 99 | * @param $visitedFragmentNames |
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| 100 | * @return mixed |
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| 101 | * @throws InvalidTypeException |
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| 102 | * @throws \Digia\GraphQL\Error\ExecutionException |
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| 103 | * @throws \Digia\GraphQL\Error\InvariantException |
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| 104 | */ |
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| 105 | protected function collectFields( |
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| 106 | ObjectType $runtimeType, |
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| 107 | SelectionSetNode $selectionSet, |
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| 108 | &$fields, |
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| 109 | &$visitedFragmentNames |
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| 110 | ) { |
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| 111 | foreach ($selectionSet->getSelections() as $selection) { |
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| 112 | // Check if this Node should be included first |
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| 113 | if (!$this->shouldIncludeNode($selection)) { |
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| 114 | continue; |
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| 115 | } |
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| 116 | // Collect fields |
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| 117 | if ($selection instanceof FieldNode) { |
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| 118 | $fieldName = $this->getFieldNameKey($selection); |
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| 119 | |||
| 120 | if (!isset($fields[$fieldName])) { |
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| 121 | $fields[$fieldName] = []; |
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| 122 | } |
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| 123 | |||
| 124 | $fields[$fieldName][] = $selection; |
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| 125 | } elseif ($selection instanceof InlineFragmentNode) { |
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| 126 | if (!$this->doesFragmentConditionMatch($selection, $runtimeType)) { |
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| 127 | continue; |
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| 128 | } |
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| 129 | |||
| 130 | $this->collectFields($runtimeType, $selection->getSelectionSet(), $fields, $visitedFragmentNames); |
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| 131 | } elseif ($selection instanceof FragmentSpreadNode) { |
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| 132 | $fragmentName = $selection->getNameValue(); |
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| 133 | |||
| 134 | if (!empty($visitedFragmentNames[$fragmentName])) { |
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| 135 | continue; |
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| 136 | } |
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| 137 | |||
| 138 | $visitedFragmentNames[$fragmentName] = true; |
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| 139 | /** @var FragmentDefinitionNode $fragment */ |
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| 140 | $fragment = $this->context->getFragments()[$fragmentName]; |
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| 141 | $this->collectFields($runtimeType, $fragment->getSelectionSet(), $fields, $visitedFragmentNames); |
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| 142 | } |
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| 143 | } |
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| 144 | |||
| 145 | return $fields; |
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| 146 | } |
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| 147 | |||
| 148 | |||
| 149 | /** |
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| 150 | * @param $node |
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| 151 | * @return bool |
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| 152 | * @throws InvalidTypeException |
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| 153 | * @throws \Digia\GraphQL\Error\ExecutionException |
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| 154 | * @throws \Digia\GraphQL\Error\InvariantException |
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| 155 | */ |
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| 156 | private function shouldIncludeNode(NodeInterface $node): bool |
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| 157 | { |
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| 158 | |||
| 159 | $contextVariables = $this->context->getVariableValues(); |
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| 160 | |||
| 161 | $skip = $this->valuesResolver->getDirectiveValues(GraphQLSkipDirective(), $node, $contextVariables); |
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| 162 | |||
| 163 | if ($skip && $skip['if'] === true) { |
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| 164 | return false; |
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| 165 | } |
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| 166 | |||
| 167 | $include = $this->valuesResolver->getDirectiveValues(GraphQLIncludeDirective(), $node, $contextVariables); |
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| 168 | |||
| 169 | if ($include && $include['if'] === false) { |
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| 170 | return false; |
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| 171 | } |
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| 172 | |||
| 173 | return true; |
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| 174 | } |
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| 175 | |||
| 176 | /** |
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| 177 | * @param FragmentDefinitionNode|InlineFragmentNode $fragment |
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| 178 | * @param ObjectType $type |
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| 179 | * @return bool |
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| 180 | * @throws InvalidTypeException |
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| 181 | */ |
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| 182 | private function doesFragmentConditionMatch( |
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| 183 | NodeInterface $fragment, |
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| 184 | ObjectType $type |
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| 185 | ): bool { |
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| 186 | $typeConditionNode = $fragment->getTypeCondition(); |
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| 187 | |||
| 188 | if (!$typeConditionNode) { |
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| 189 | return true; |
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| 190 | } |
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| 191 | |||
| 192 | $conditionalType = typeFromAST($this->context->getSchema(), $typeConditionNode); |
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| 193 | |||
| 194 | if ($conditionalType === $type) { |
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| 195 | return true; |
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| 196 | } |
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| 197 | |||
| 198 | if ($conditionalType instanceof AbstractTypeInterface) { |
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| 199 | return $this->context->getSchema()->isPossibleType($conditionalType, $type); |
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| 200 | } |
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| 201 | |||
| 202 | return false; |
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| 203 | } |
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| 204 | |||
| 205 | /** |
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| 206 | * @TODO: consider to move this to FieldNode |
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| 207 | * @param FieldNode $node |
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| 208 | * @return string |
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| 209 | */ |
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| 210 | private function getFieldNameKey(FieldNode $node): string |
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| 213 | } |
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| 214 | |||
| 215 | /** |
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| 216 | * Implements the "Evaluating selection sets" section of the spec for "read" mode. |
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| 217 | * @param ObjectType $objectType |
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| 218 | * @param $rootValue |
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| 219 | * @param $path |
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| 220 | * @param $fields |
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| 221 | * @return array |
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| 222 | * @throws InvalidTypeException |
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| 223 | * @throws \Digia\GraphQL\Error\ExecutionException |
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| 224 | * @throws \Digia\GraphQL\Error\InvariantException |
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| 225 | * @throws \Throwable |
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| 226 | */ |
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| 227 | protected function executeFields( |
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| 262 | } |
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| 263 | |||
| 264 | /** |
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| 265 | * Implements the "Evaluating selection sets" section of the spec for "write" mode. |
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| 266 | * |
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| 267 | * @param ObjectType $objectType |
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| 268 | * @param $rootValue |
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| 269 | * @param $path |
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| 270 | * @param $fields |
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| 271 | * @return array |
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| 272 | * @throws InvalidTypeException |
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| 273 | * @throws \Digia\GraphQL\Error\ExecutionException |
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| 274 | * @throws \Digia\GraphQL\Error\InvariantException |
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| 275 | * @throws \Throwable |
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| 276 | */ |
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| 277 | public function executeFieldsSerially( |
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| 321 | } |
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| 322 | |||
| 323 | /** |
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| 324 | * @param Schema $schema |
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| 325 | * @param ObjectType $parentType |
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| 326 | * @param string $fieldName |
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| 327 | * @return \Digia\GraphQL\Type\Definition\Field|null |
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| 328 | * @throws InvalidTypeException |
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| 329 | * @throws \Digia\GraphQL\Error\InvariantException |
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| 330 | */ |
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| 331 | public function getFieldDefinition( |
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| 332 | Schema $schema, |
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| 333 | ObjectType $parentType, |
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| 334 | string $fieldName |
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| 335 | ) { |
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| 336 | $schemaMetaFieldDefinition = SchemaMetaFieldDefinition(); |
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| 337 | $typeMetaFieldDefinition = TypeMetaFieldDefinition(); |
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| 338 | $typeNameMetaFieldDefinition = TypeNameMetaFieldDefinition(); |
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| 339 | |||
| 340 | if ($fieldName === $schemaMetaFieldDefinition->getName() && $schema->getQueryType() === $parentType) { |
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| 341 | return $schemaMetaFieldDefinition; |
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| 342 | } |
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| 343 | |||
| 344 | if ($fieldName === $typeMetaFieldDefinition->getName() && $schema->getQueryType() === $parentType) { |
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| 345 | return $typeMetaFieldDefinition; |
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| 346 | } |
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| 347 | |||
| 348 | if ($fieldName === $typeNameMetaFieldDefinition->getName()) { |
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| 349 | return $typeNameMetaFieldDefinition; |
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| 350 | } |
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| 351 | |||
| 352 | $fields = $parentType->getFields(); |
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| 353 | |||
| 354 | return $fields[$fieldName] ?? null; |
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| 355 | } |
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| 356 | |||
| 357 | |||
| 358 | /** |
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| 359 | * @param ObjectType $parentType |
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| 360 | * @param $rootValue |
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| 361 | * @param $fieldNodes |
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| 362 | * @param $path |
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| 363 | * @return array|null|\Throwable |
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| 364 | * @throws InvalidTypeException |
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| 365 | * @throws \Digia\GraphQL\Error\ExecutionException |
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| 366 | * @throws \Digia\GraphQL\Error\InvariantException |
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| 367 | * @throws \Throwable |
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| 368 | */ |
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| 369 | protected function resolveField( |
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| 370 | ObjectType $parentType, |
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| 371 | $rootValue, |
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| 372 | $fieldNodes, |
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| 373 | $path |
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| 374 | ) { |
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| 375 | /** @var FieldNode $fieldNode */ |
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| 376 | $fieldNode = $fieldNodes[0]; |
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| 377 | |||
| 378 | $field = $this->getFieldDefinition($this->context->getSchema(), $parentType, $fieldNode->getNameValue()); |
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| 379 | |||
| 380 | if (null === $field) { |
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| 381 | throw new UndefinedException('Undefined field definition.'); |
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| 382 | } |
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| 383 | |||
| 384 | $info = $this->buildResolveInfo($fieldNodes, $fieldNode, $field, $parentType, $path, $this->context); |
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| 385 | |||
| 386 | $resolveFunction = $this->determineResolveFunction($field, $parentType, $this->context); |
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| 387 | |||
| 388 | $result = $this->resolveFieldValueOrError( |
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| 389 | $field, |
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| 390 | $fieldNode, |
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| 391 | $resolveFunction, |
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| 392 | $rootValue, |
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| 393 | $this->context, |
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| 394 | $info |
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| 395 | ); |
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| 396 | |||
| 397 | $result = $this->completeValueCatchingError( |
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| 398 | $field->getType(), |
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| 399 | $fieldNodes, |
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| 400 | $info, |
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| 401 | $path, |
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| 402 | $result// $result is passed as $source |
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| 403 | ); |
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| 404 | |||
| 405 | return $result; |
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| 406 | } |
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| 407 | |||
| 408 | /** |
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| 409 | * @param array $fieldNodes |
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| 410 | * @param FieldNode $fieldNode |
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| 411 | * @param Field $field |
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| 412 | * @param ObjectType $parentType |
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| 413 | * @param $path |
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| 414 | * @param ExecutionContext $context |
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| 415 | * @return ResolveInfo |
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| 416 | */ |
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| 417 | private function buildResolveInfo( |
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| 418 | array $fieldNodes, |
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| 419 | FieldNode $fieldNode, |
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| 420 | Field $field, |
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| 421 | ObjectType $parentType, |
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| 422 | $path, |
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| 423 | ExecutionContext $context |
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| 424 | ) { |
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| 425 | return new ResolveInfo([ |
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| 426 | 'fieldName' => $fieldNode->getNameValue(), |
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| 427 | 'fieldNodes' => $fieldNodes, |
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| 428 | 'returnType' => $field->getType(), |
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| 429 | 'parentType' => $parentType, |
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| 430 | 'path' => $path, |
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| 431 | 'schema' => $context->getSchema(), |
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| 432 | 'fragments' => $context->getFragments(), |
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| 433 | 'rootValue' => $context->getRootValue(), |
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| 434 | 'operation' => $context->getOperation(), |
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| 435 | 'variableValues' => $context->getVariableValues(), |
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| 436 | ]); |
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| 437 | } |
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| 438 | |||
| 439 | /** |
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| 440 | * @param Field $field |
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| 441 | * @param ObjectType $objectType |
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| 442 | * @param ExecutionContext $context |
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| 443 | * @return callable|mixed|null |
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| 444 | */ |
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| 445 | private function determineResolveFunction( |
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| 446 | Field $field, |
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| 447 | ObjectType $objectType, |
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| 448 | ExecutionContext $context |
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| 449 | ) { |
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| 450 | |||
| 451 | if ($field->hasResolve()) { |
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| 452 | return $field->getResolve(); |
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| 453 | } |
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| 454 | |||
| 455 | if ($objectType->hasResolve()) { |
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| 456 | return $objectType->getResolve(); |
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| 457 | } |
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| 458 | |||
| 459 | return $this->context->getFieldResolver() ?? self::$defaultFieldResolver; |
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| 460 | } |
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| 461 | |||
| 462 | /** |
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| 463 | * @param TypeInterface $fieldType |
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| 464 | * @param $fieldNodes |
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| 465 | * @param ResolveInfo $info |
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| 466 | * @param $path |
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| 467 | * @param $result |
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| 468 | * @return null |
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| 469 | * @throws \Throwable |
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| 470 | */ |
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| 471 | public function completeValueCatchingError( |
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| 472 | TypeInterface $fieldType, |
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| 473 | $fieldNodes, |
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| 474 | ResolveInfo $info, |
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| 475 | $path, |
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| 476 | &$result |
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| 477 | ) { |
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| 478 | if ($fieldType instanceof NonNullType) { |
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| 479 | return $this->completeValueWithLocatedError( |
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| 480 | $fieldType, |
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| 481 | $fieldNodes, |
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| 482 | $info, |
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| 483 | $path, |
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| 484 | $result |
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| 485 | ); |
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| 486 | } |
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| 487 | |||
| 488 | try { |
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| 489 | $completed = $this->completeValueWithLocatedError( |
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| 490 | $fieldType, |
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| 491 | $fieldNodes, |
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| 492 | $info, |
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| 493 | $path, |
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| 494 | $result |
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| 495 | ); |
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| 496 | |||
| 497 | if ($this->isPromise($completed)) { |
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| 498 | $context = $this->context; |
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| 499 | /** @var ExtendedPromiseInterface $completed */ |
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| 500 | return $completed->then(null, function ($error) use ($context) { |
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| 501 | $context->addError($error); |
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| 502 | return new \React\Promise\FulfilledPromise(null); |
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| 503 | }); |
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| 504 | } |
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| 505 | |||
| 506 | return $completed; |
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| 507 | } catch (\Exception $ex) { |
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| 508 | $this->context->addError(new ExecutionException($ex->getMessage())); |
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| 509 | return null; |
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| 510 | } |
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| 511 | } |
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| 512 | |||
| 513 | /** |
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| 514 | * @param TypeInterface $fieldType |
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| 515 | * @param $fieldNodes |
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| 516 | * @param ResolveInfo $info |
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| 517 | * @param $path |
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| 518 | * @param $result |
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| 519 | * @throws \Throwable |
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| 520 | */ |
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| 521 | public function completeValueWithLocatedError( |
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| 522 | TypeInterface $fieldType, |
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| 523 | $fieldNodes, |
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| 524 | ResolveInfo $info, |
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| 525 | $path, |
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| 526 | $result |
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| 527 | ) { |
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| 528 | try { |
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| 529 | $completed = $this->completeValue( |
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| 530 | $fieldType, |
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| 531 | $fieldNodes, |
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| 532 | $info, |
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| 533 | $path, |
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| 534 | $result |
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| 535 | ); |
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| 536 | |||
| 537 | return $completed; |
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| 538 | } catch (\Exception $ex) { |
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| 539 | //@TODO throw located error |
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| 540 | throw $ex; |
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| 541 | } catch (\Throwable $ex) { |
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| 542 | //@TODO throw located error |
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| 543 | throw $ex; |
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| 544 | } |
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| 545 | } |
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| 546 | |||
| 547 | /** |
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| 548 | * @param TypeInterface $returnType |
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| 549 | * @param $fieldNodes |
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| 550 | * @param ResolveInfo $info |
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| 551 | * @param $path |
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| 552 | * @param $result |
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| 553 | * @return array|mixed |
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| 554 | * @throws ExecutionException |
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| 555 | * @throws \Throwable |
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| 556 | */ |
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| 557 | private function completeValue( |
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| 558 | TypeInterface $returnType, |
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| 559 | $fieldNodes, |
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| 560 | ResolveInfo $info, |
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| 561 | $path, |
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| 562 | &$result |
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| 563 | ) { |
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| 564 | if ($this->isPromise($result)) { |
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| 565 | /** @var ExtendedPromiseInterface $result */ |
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| 566 | return $result->then(function (&$value) use ($returnType, $fieldNodes, $info, $path) { |
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| 567 | return $this->completeValue($returnType, $fieldNodes, $info, $path, $value); |
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| 568 | }); |
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| 569 | } |
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| 570 | |||
| 571 | if ($result instanceof \Throwable) { |
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| 572 | throw $result; |
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| 573 | } |
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| 574 | |||
| 575 | // If result is null-like, return null. |
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| 576 | if (null === $result) { |
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| 577 | return null; |
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| 578 | } |
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| 579 | |||
| 580 | if ($returnType instanceof NonNullType) { |
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| 581 | $completed = $this->completeValue( |
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| 582 | $returnType->getOfType(), |
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| 583 | $fieldNodes, |
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| 584 | $info, |
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| 585 | $path, |
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| 586 | $result |
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| 587 | ); |
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| 588 | |||
| 589 | if ($completed === null) { |
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| 590 | throw new ExecutionException( |
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| 591 | sprintf( |
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| 592 | 'Cannot return null for non-nullable field %s.%s.', |
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| 593 | $info->getParentType(), $info->getFieldName() |
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| 594 | ) |
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| 595 | ); |
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| 596 | } |
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| 597 | |||
| 598 | return $completed; |
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| 599 | } |
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| 600 | |||
| 601 | // If field type is List, complete each item in the list with the inner type |
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| 602 | if ($returnType instanceof ListType) { |
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| 603 | return $this->completeListValue($returnType, $fieldNodes, $info, $path, $result); |
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| 604 | } |
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| 605 | |||
| 606 | |||
| 607 | // If field type is Scalar or Enum, serialize to a valid value, returning |
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| 608 | // null if serialization is not possible. |
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| 609 | if ($returnType instanceof LeafTypeInterface) { |
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| 610 | return $this->completeLeafValue($returnType, $result); |
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| 611 | } |
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| 612 | |||
| 613 | //@TODO Make a function for checking abstract type? |
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| 614 | if ($returnType instanceof InterfaceType || $returnType instanceof UnionType) { |
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| 615 | return $this->completeAbstractValue($returnType, $fieldNodes, $info, $path, $result); |
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| 616 | } |
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| 617 | |||
| 618 | // Field type must be Object, Interface or Union and expect sub-selections. |
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| 619 | if ($returnType instanceof ObjectType) { |
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| 620 | return $this->completeObjectValue($returnType, $fieldNodes, $info, $path, $result); |
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| 621 | } |
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| 622 | |||
| 623 | throw new ExecutionException("Cannot complete value of unexpected type \"{$returnType}\"."); |
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| 624 | } |
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| 625 | |||
| 626 | /** |
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| 627 | * @param AbstractTypeInterface $returnType |
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| 628 | * @param $fieldNodes |
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| 629 | * @param ResolveInfo $info |
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| 630 | * @param $path |
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| 631 | * @param $result |
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| 632 | * @return array|PromiseInterface |
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| 633 | * @throws ExecutionException |
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| 634 | * @throws InvalidTypeException |
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| 635 | * @throws \Digia\GraphQL\Error\InvariantException |
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| 636 | * @throws \Throwable |
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| 637 | */ |
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| 638 | private function completeAbstractValue( |
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| 639 | AbstractTypeInterface $returnType, |
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| 640 | $fieldNodes, |
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| 641 | ResolveInfo $info, |
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| 642 | $path, |
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| 643 | &$result |
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| 644 | ) { |
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| 645 | $runtimeType = $returnType->resolveType($result, $this->context->getContextValue(), $info); |
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| 646 | |||
| 647 | if (null === $runtimeType) { |
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| 648 | //@TODO Show warning |
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| 649 | $runtimeType = $this->defaultTypeResolver($result, $this->context->getContextValue(), $info, $returnType); |
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| 650 | } |
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| 651 | |||
| 652 | if ($this->isPromise($runtimeType)) { |
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| 653 | /** @var ExtendedPromiseInterface $runtimeType */ |
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| 654 | return $runtimeType->then(function ($resolvedRuntimeType) use ( |
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| 655 | $returnType, |
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| 656 | $fieldNodes, |
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| 657 | $info, |
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| 658 | $path, |
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| 659 | &$result |
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| 660 | ) { |
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| 661 | return $this->completeObjectValue( |
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| 662 | $this->ensureValidRuntimeType( |
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| 663 | $resolvedRuntimeType, |
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| 664 | $returnType, |
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| 665 | $fieldNodes, |
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| 666 | $info, |
||
| 667 | $result |
||
| 668 | ), |
||
| 669 | $fieldNodes, |
||
| 670 | $info, |
||
| 671 | $path, |
||
| 672 | $result |
||
| 673 | ); |
||
| 674 | }); |
||
| 675 | } |
||
| 676 | |||
| 677 | return $this->completeObjectValue( |
||
| 678 | $this->ensureValidRuntimeType( |
||
| 679 | $runtimeType, |
||
| 680 | $returnType, |
||
| 681 | $fieldNodes, |
||
| 682 | $info, |
||
| 683 | $result |
||
| 684 | ), |
||
| 685 | $fieldNodes, |
||
| 686 | $info, |
||
| 687 | $path, |
||
| 688 | $result |
||
| 689 | ); |
||
| 690 | } |
||
| 691 | |||
| 692 | /** |
||
| 693 | * @param $runtimeTypeOrName |
||
| 694 | * @param AbstractTypeInterface $returnType |
||
| 695 | * @param $fieldNodes |
||
| 696 | * @param ResolveInfo $info |
||
| 697 | * @param $result |
||
| 698 | * @return TypeInterface|ObjectType|null |
||
| 699 | * @throws ExecutionException |
||
| 700 | */ |
||
| 701 | private function ensureValidRuntimeType( |
||
| 702 | $runtimeTypeOrName, |
||
| 703 | AbstractTypeInterface $returnType, |
||
| 704 | $fieldNodes, |
||
| 705 | ResolveInfo $info, |
||
| 706 | &$result |
||
| 707 | ) { |
||
| 708 | $runtimeType = is_string($runtimeTypeOrName) |
||
| 709 | ? $this->context->getSchema()->getType($runtimeTypeOrName) |
||
| 710 | : $runtimeTypeOrName; |
||
| 711 | |||
| 712 | $runtimeTypeName = is_string($runtimeType) ?: $runtimeType->getName(); |
||
| 713 | $returnTypeName = $returnType->getName(); |
||
| 714 | |||
| 715 | if (!$runtimeType instanceof ObjectType) { |
||
| 716 | $parentTypeName = $info->getParentType()->getName(); |
||
| 717 | $fieldName = $info->getFieldName(); |
||
| 718 | |||
| 719 | throw new ExecutionException( |
||
| 720 | "Abstract type {$returnTypeName} must resolve to an Object type at runtime " . |
||
| 721 | "for field {$parentTypeName}.{$fieldName} with " . |
||
| 722 | 'value "' . $result . '", received "{$runtimeTypeName}".' |
||
| 723 | ); |
||
| 724 | } |
||
| 725 | |||
| 726 | if (!$this->context->getSchema()->isPossibleType($returnType, $runtimeType)) { |
||
| 727 | throw new ExecutionException( |
||
| 728 | "Runtime Object type \"{$runtimeTypeName}\" is not a possible type for \"{$returnTypeName}\"." |
||
| 729 | ); |
||
| 730 | } |
||
| 731 | |||
| 732 | if ($runtimeType !== $this->context->getSchema()->getType($runtimeType->getName())) { |
||
| 733 | throw new ExecutionException( |
||
| 734 | "Schema must contain unique named types but contains multiple types named \"{$runtimeTypeName}\". " . |
||
| 735 | "Make sure that `resolveType` function of abstract type \"{$returnTypeName}\" returns the same " . |
||
| 736 | "type instance as referenced anywhere else within the schema." |
||
| 737 | ); |
||
| 738 | } |
||
| 739 | |||
| 740 | return $runtimeType; |
||
| 741 | } |
||
| 742 | |||
| 743 | /** |
||
| 744 | * @param $value |
||
| 745 | * @param $context |
||
| 746 | * @param ResolveInfo $info |
||
| 747 | * @param AbstractTypeInterface $abstractType |
||
| 748 | * @return TypeInterface|null |
||
| 749 | * @throws ExecutionException |
||
| 750 | */ |
||
| 751 | private function defaultTypeResolver($value, $context, ResolveInfo $info, AbstractTypeInterface $abstractType) |
||
| 752 | { |
||
| 753 | $possibleTypes = $info->getSchema()->getPossibleTypes($abstractType); |
||
| 754 | $promisedIsTypeOfResults = []; |
||
| 755 | |||
| 756 | foreach ($possibleTypes as $index => $type) { |
||
| 757 | $isTypeOfResult = $type->isTypeOf($value, $context, $info); |
||
| 758 | if (null !== $isTypeOfResult) { |
||
| 759 | if ($this->isPromise($isTypeOfResult)) { |
||
| 760 | $promisedIsTypeOfResults[$index] = $isTypeOfResult; |
||
| 761 | continue; |
||
| 762 | } |
||
| 763 | |||
| 764 | if ($isTypeOfResult === true) { |
||
| 765 | return $type; |
||
| 766 | } |
||
| 767 | |||
| 768 | if (\is_array($value)) { |
||
| 769 | //@TODO Make `type` configurable |
||
| 770 | if (isset($value['type']) && $value['type'] === $type->getName()) { |
||
| 771 | return $type; |
||
| 772 | } |
||
| 773 | } |
||
| 774 | } |
||
| 775 | } |
||
| 776 | |||
| 777 | if (!empty($promisedIsTypeOfResults)) { |
||
| 778 | return \React\Promise\all($promisedIsTypeOfResults) |
||
| 779 | ->then(function ($isTypeOfResults) use ($possibleTypes) { |
||
| 780 | foreach ($isTypeOfResults as $index => $result) { |
||
| 781 | if ($result) { |
||
| 782 | return $possibleTypes[$index]; |
||
| 783 | } |
||
| 784 | } |
||
| 785 | return null; |
||
| 786 | }); |
||
| 787 | } |
||
| 788 | |||
| 789 | return null; |
||
| 790 | } |
||
| 791 | |||
| 792 | /** |
||
| 793 | * @param ListType $returnType |
||
| 794 | * @param $fieldNodes |
||
| 795 | * @param ResolveInfo $info |
||
| 796 | * @param $path |
||
| 797 | * @param $result |
||
| 798 | * @return array|\React\Promise\Promise |
||
| 799 | * @throws \Throwable |
||
| 800 | */ |
||
| 801 | private function completeListValue( |
||
| 802 | ListType $returnType, |
||
| 803 | $fieldNodes, |
||
| 804 | ResolveInfo $info, |
||
| 805 | $path, |
||
| 806 | &$result |
||
| 807 | ) { |
||
| 808 | $itemType = $returnType->getOfType(); |
||
| 809 | |||
| 810 | $completedItems = []; |
||
| 811 | $containsPromise = false; |
||
| 812 | foreach ($result as $key => $item) { |
||
| 813 | $fieldPath = $path; |
||
| 814 | $fieldPath[] = $key; |
||
| 815 | $completedItem = $this->completeValueCatchingError($itemType, $fieldNodes, $info, $fieldPath, $item); |
||
| 816 | $completedItems[] = $completedItem; |
||
| 817 | $containsPromise = $containsPromise || $this->isPromise($completedItem); |
||
| 818 | } |
||
| 819 | |||
| 820 | return $containsPromise ? \React\Promise\all($completedItems) : $completedItems; |
||
| 821 | } |
||
| 822 | |||
| 823 | /** |
||
| 824 | * @param LeafTypeInterface $returnType |
||
| 825 | * @param $result |
||
| 826 | * @return mixed |
||
| 827 | * @throws ExecutionException |
||
| 828 | */ |
||
| 829 | private function completeLeafValue(LeafTypeInterface $returnType, &$result) |
||
| 830 | { |
||
| 831 | $serializedResult = $returnType->serialize($result); |
||
| 832 | |||
| 833 | if ($serializedResult === null) { |
||
| 834 | throw new ExecutionException( |
||
| 835 | sprintf('Expected a value of type "%s" but received: %s', (string)$returnType, toString($result)) |
||
| 836 | ); |
||
| 837 | } |
||
| 838 | |||
| 839 | return $serializedResult; |
||
| 840 | } |
||
| 841 | |||
| 842 | /** |
||
| 843 | * @param ObjectType $returnType |
||
| 844 | * @param $fieldNodes |
||
| 845 | * @param ResolveInfo $info |
||
| 846 | * @param $path |
||
| 847 | * @param $result |
||
| 848 | * @return array |
||
| 849 | * @throws ExecutionException |
||
| 850 | * @throws InvalidTypeException |
||
| 851 | * @throws \Digia\GraphQL\Error\InvariantException |
||
| 852 | * @throws \Throwable |
||
| 853 | */ |
||
| 854 | private function completeObjectValue( |
||
| 855 | ObjectType $returnType, |
||
| 856 | $fieldNodes, |
||
| 857 | ResolveInfo $info, |
||
| 858 | $path, |
||
| 859 | &$result |
||
| 860 | ) { |
||
| 861 | return $this->collectAndExecuteSubFields( |
||
| 862 | $returnType, |
||
| 863 | $fieldNodes, |
||
| 864 | $info, |
||
| 865 | $path, |
||
| 866 | $result |
||
| 867 | ); |
||
| 868 | } |
||
| 869 | |||
| 870 | /** |
||
| 871 | * @param Field $field |
||
| 872 | * @param FieldNode $fieldNode |
||
| 873 | * @param callable $resolveFunction |
||
| 874 | * @param $rootValue |
||
| 875 | * @param ExecutionContext $context |
||
| 876 | * @param ResolveInfo $info |
||
| 877 | * @return array|\Throwable |
||
| 878 | */ |
||
| 879 | private function resolveFieldValueOrError( |
||
| 880 | Field $field, |
||
| 881 | FieldNode $fieldNode, |
||
| 882 | ?callable $resolveFunction, |
||
| 883 | $rootValue, |
||
| 884 | ExecutionContext $context, |
||
| 885 | ResolveInfo $info |
||
| 886 | ) { |
||
| 887 | try { |
||
| 888 | $args = $this->valuesResolver->coerceArgumentValues($field, $fieldNode, $context->getVariableValues()); |
||
| 889 | |||
| 890 | return $resolveFunction($rootValue, $args, $context->getContextValue(), $info); |
||
| 891 | } catch (\Throwable $error) { |
||
| 892 | return $error; |
||
| 893 | } |
||
| 894 | } |
||
| 895 | |||
| 896 | /** |
||
| 897 | * Try to resolve a field without any field resolver function. |
||
| 898 | * |
||
| 899 | * @param array|object $rootValue |
||
| 900 | * @param $args |
||
| 901 | * @param $context |
||
| 902 | * @param ResolveInfo $info |
||
| 903 | * @return mixed|null |
||
| 904 | */ |
||
| 905 | public static function defaultFieldResolver($rootValue, $args, $context, ResolveInfo $info) |
||
| 906 | { |
||
| 907 | $fieldName = $info->getFieldName(); |
||
| 908 | $property = null; |
||
| 909 | |||
| 910 | if (is_array($rootValue) && isset($rootValue[$fieldName])) { |
||
| 911 | $property = $rootValue[$fieldName]; |
||
| 912 | } |
||
| 913 | |||
| 914 | if (is_object($rootValue)) { |
||
| 915 | $getter = 'get' . ucfirst($fieldName); |
||
| 916 | if (method_exists($rootValue, $getter)) { |
||
| 917 | $property = $rootValue->{$getter}(); |
||
| 918 | } elseif (property_exists($rootValue, $fieldName)) { |
||
| 919 | $property = $rootValue->{$fieldName}; |
||
| 920 | } |
||
| 921 | } |
||
| 922 | |||
| 923 | |||
| 924 | return $property instanceof \Closure ? $property($rootValue, $args, $context, $info) : $property; |
||
| 925 | } |
||
| 926 | |||
| 927 | /** |
||
| 928 | * @param ObjectType $returnType |
||
| 929 | * @param $fieldNodes |
||
| 930 | * @param ResolveInfo $info |
||
| 931 | * @param $path |
||
| 932 | * @param $result |
||
| 933 | * @return array |
||
| 934 | * @throws InvalidTypeException |
||
| 935 | * @throws \Digia\GraphQL\Error\ExecutionException |
||
| 936 | * @throws \Digia\GraphQL\Error\InvariantException |
||
| 937 | * @throws \Throwable |
||
| 938 | */ |
||
| 939 | private function collectAndExecuteSubFields( |
||
| 966 | } |
||
| 967 | |||
| 968 | /** |
||
| 969 | * @param $value |
||
| 970 | * @return bool |
||
| 971 | */ |
||
| 972 | protected function isPromise($value): bool |
||
| 975 | } |
||
| 976 | } |
||
| 977 |
Loading history...
Adding explicit visibility (
private,protected, orpublic) is generally recommend to communicate to other developers how, and from where this method is intended to be used.