digiaonline /
graphql-php
| Total Complexity | 98 |
| Total Lines | 904 |
| 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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| 228 | ObjectType $objectType, |
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| 229 | $rootValue, |
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| 230 | $path, |
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| 231 | $fields |
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| 232 | ): array { |
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| 233 | $finalResults = []; |
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| 234 | $isContainsPromise = false; |
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| 235 | |||
| 236 | foreach ($fields as $fieldName => $fieldNodes) { |
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| 237 | $fieldPath = $path; |
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| 238 | $fieldPath[] = $fieldName; |
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| 239 | |||
| 240 | try { |
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| 241 | $result = $this->resolveField($objectType, $rootValue, $fieldNodes, $fieldPath); |
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| 242 | } catch (UndefinedException $ex) { |
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| 243 | continue; |
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| 244 | } |
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| 245 | |||
| 246 | $isContainsPromise = $isContainsPromise || $this->isPromise($result); |
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| 247 | |||
| 248 | $finalResults[$fieldName] = $result; |
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| 249 | } |
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| 250 | |||
| 251 | if ($isContainsPromise) { |
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| 252 | $keys = array_keys($finalResults); |
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| 253 | $promise = \React\Promise\all(array_values($finalResults)); |
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| 254 | $promise->then(function ($values) use ($keys, &$finalResults) { |
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| 255 | foreach ($values as $i => $value) { |
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| 256 | $finalResults[$keys[$i]] = $value; |
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| 257 | } |
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| 258 | }); |
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| 259 | } |
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| 260 | |||
| 261 | return $finalResults; |
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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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| 278 | ObjectType $objectType, |
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| 279 | $rootValue, |
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| 280 | $path, |
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| 281 | $fields |
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| 282 | ) { |
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| 283 | //@TODO execute fields serially |
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| 284 | $finalResults = []; |
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| 285 | |||
| 286 | foreach ($fields as $fieldName => $fieldNodes) { |
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| 287 | $fieldPath = $path; |
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| 288 | $fieldPath[] = $fieldName; |
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| 289 | |||
| 290 | try { |
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| 291 | $result = $this->resolveField($objectType, $rootValue, $fieldNodes, $fieldPath); |
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| 292 | } catch (UndefinedException $ex) { |
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| 293 | continue; |
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| 294 | } |
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| 295 | |||
| 296 | $finalResults[$fieldName] = $result; |
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| 297 | } |
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| 298 | |||
| 299 | return $finalResults; |
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| 300 | } |
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| 301 | |||
| 302 | /** |
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| 303 | * @param Schema $schema |
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| 304 | * @param ObjectType $parentType |
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| 305 | * @param string $fieldName |
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| 306 | * @return \Digia\GraphQL\Type\Definition\Field|null |
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| 307 | * @throws InvalidTypeException |
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| 308 | */ |
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| 309 | public function getFieldDefinition( |
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| 310 | Schema $schema, |
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| 311 | ObjectType $parentType, |
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| 312 | string $fieldName |
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| 313 | ) { |
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| 314 | $schemaMetaFieldDefinition = SchemaMetaFieldDefinition(); |
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| 315 | $typeMetaFieldDefinition = TypeMetaFieldDefinition(); |
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| 316 | $typeNameMetaFieldDefinition = TypeNameMetaFieldDefinition(); |
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| 317 | |||
| 318 | if ($fieldName === $schemaMetaFieldDefinition->getName() && $schema->getQuery() === $parentType) { |
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| 319 | return $schemaMetaFieldDefinition; |
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| 320 | } |
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| 321 | |||
| 322 | if ($fieldName === $typeMetaFieldDefinition->getName() && $schema->getQuery() === $parentType) { |
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| 323 | return $typeMetaFieldDefinition; |
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| 324 | } |
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| 325 | |||
| 326 | if ($fieldName === $typeNameMetaFieldDefinition->getName()) { |
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| 327 | return $typeNameMetaFieldDefinition; |
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| 328 | } |
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| 329 | |||
| 330 | $fields = $parentType->getFields(); |
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| 331 | |||
| 332 | return $fields[$fieldName] ?? null; |
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| 333 | } |
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| 334 | |||
| 335 | |||
| 336 | /** |
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| 337 | * @param ObjectType $parentType |
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| 338 | * @param $rootValue |
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| 339 | * @param $fieldNodes |
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| 340 | * @param $path |
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| 341 | * @return array|null|\Throwable |
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| 342 | * @throws InvalidTypeException |
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| 343 | * @throws \Digia\GraphQL\Error\ExecutionException |
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| 344 | * @throws \Digia\GraphQL\Error\InvariantException |
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| 345 | * @throws \Throwable |
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| 346 | */ |
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| 347 | protected function resolveField( |
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| 384 | } |
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| 385 | |||
| 386 | /** |
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| 387 | * @param array $fieldNodes |
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| 388 | * @param FieldNode $fieldNode |
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| 389 | * @param Field $field |
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| 390 | * @param ObjectType $parentType |
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| 391 | * @param $path |
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| 392 | * @param ExecutionContext $context |
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| 393 | * @return ResolveInfo |
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| 394 | */ |
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| 395 | private function buildResolveInfo( |
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| 396 | array $fieldNodes, |
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| 397 | FieldNode $fieldNode, |
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| 398 | Field $field, |
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| 399 | ObjectType $parentType, |
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| 400 | $path, |
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| 401 | ExecutionContext $context |
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| 402 | ) { |
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| 403 | return new ResolveInfo([ |
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| 404 | 'fieldName' => $fieldNode->getNameValue(), |
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| 405 | 'fieldNodes' => $fieldNodes, |
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| 406 | 'returnType' => $field->getType(), |
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| 407 | 'parentType' => $parentType, |
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| 408 | 'path' => $path, |
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| 409 | 'schema' => $context->getSchema(), |
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| 410 | 'fragments' => $context->getFragments(), |
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| 411 | 'rootValue' => $context->getRootValue(), |
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| 412 | 'operation' => $context->getOperation(), |
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| 413 | 'variableValues' => $context->getVariableValues(), |
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| 414 | ]); |
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| 415 | } |
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| 416 | |||
| 417 | /** |
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| 418 | * @param Field $field |
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| 419 | * @param ObjectType $objectType |
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| 420 | * @param ExecutionContext $context |
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| 421 | * @return callable|mixed|null |
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| 422 | */ |
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| 423 | private function determineResolveFunction( |
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| 438 | } |
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| 439 | |||
| 440 | /** |
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| 441 | * @param TypeInterface $fieldType |
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| 442 | * @param $fieldNodes |
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| 443 | * @param ResolveInfo $info |
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| 444 | * @param $path |
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| 445 | * @param $result |
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| 446 | * @return null |
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| 447 | * @throws \Throwable |
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| 448 | */ |
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| 449 | public function completeValueCatchingError( |
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| 450 | TypeInterface $fieldType, |
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| 451 | $fieldNodes, |
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| 452 | ResolveInfo $info, |
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| 453 | $path, |
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| 454 | &$result |
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| 455 | ) { |
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| 456 | if ($fieldType instanceof NonNullType) { |
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| 457 | return $this->completeValueWithLocatedError( |
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| 458 | $fieldType, |
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| 459 | $fieldNodes, |
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| 460 | $info, |
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| 461 | $path, |
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| 462 | $result |
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| 463 | ); |
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| 464 | } |
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| 465 | |||
| 466 | try { |
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| 467 | $completed = $this->completeValueWithLocatedError( |
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| 468 | $fieldType, |
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| 469 | $fieldNodes, |
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| 470 | $info, |
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| 471 | $path, |
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| 472 | $result |
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| 473 | ); |
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| 474 | |||
| 475 | if ($this->isPromise($completed)) { |
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| 476 | $context = $this->context; |
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| 477 | /** @var ExtendedPromiseInterface $completed */ |
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| 478 | return $completed->then(null, function ($error) use ($context) { |
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| 479 | $context->addError($error); |
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| 480 | return new \React\Promise\FulfilledPromise(null); |
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| 481 | }); |
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| 482 | } |
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| 483 | |||
| 484 | return $completed; |
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| 485 | } catch (\Exception $ex) { |
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| 486 | $this->context->addError(new ExecutionException($ex->getMessage())); |
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| 487 | return null; |
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| 488 | } |
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| 489 | } |
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| 490 | |||
| 491 | /** |
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| 492 | * @param TypeInterface $fieldType |
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| 493 | * @param $fieldNodes |
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| 494 | * @param ResolveInfo $info |
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| 495 | * @param $path |
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| 496 | * @param $result |
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| 497 | * @throws \Throwable |
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| 498 | */ |
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| 499 | public function completeValueWithLocatedError( |
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| 500 | TypeInterface $fieldType, |
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| 501 | $fieldNodes, |
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| 502 | ResolveInfo $info, |
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| 503 | $path, |
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| 504 | $result |
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| 505 | ) { |
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| 506 | try { |
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| 507 | $completed = $this->completeValue( |
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| 508 | $fieldType, |
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| 509 | $fieldNodes, |
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| 510 | $info, |
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| 511 | $path, |
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| 512 | $result |
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| 513 | ); |
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| 514 | |||
| 515 | return $completed; |
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| 516 | } catch (\Exception $ex) { |
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| 517 | //@TODO throw located error |
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| 518 | throw $ex; |
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| 519 | } catch (\Throwable $ex) { |
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| 520 | //@TODO throw located error |
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| 521 | throw $ex; |
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| 522 | } |
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| 523 | } |
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| 524 | |||
| 525 | /** |
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| 526 | * @param TypeInterface $returnType |
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| 527 | * @param $fieldNodes |
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| 528 | * @param ResolveInfo $info |
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| 529 | * @param $path |
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| 530 | * @param $result |
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| 531 | * @return array|mixed |
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| 532 | * @throws ExecutionException |
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| 533 | * @throws \Throwable |
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| 534 | */ |
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| 535 | private function completeValue( |
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| 536 | TypeInterface $returnType, |
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| 537 | $fieldNodes, |
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| 538 | ResolveInfo $info, |
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| 539 | $path, |
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| 540 | &$result |
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| 541 | ) { |
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| 542 | if ($this->isPromise($result)) { |
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| 543 | /** @var ExtendedPromiseInterface $result */ |
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| 544 | return $result->then(function (&$value) use ($returnType, $fieldNodes, $info, $path) { |
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| 545 | return $this->completeValue($returnType, $fieldNodes, $info, $path, $value); |
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| 546 | }); |
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| 547 | } |
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| 548 | |||
| 549 | if ($result instanceof \Throwable) { |
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| 550 | throw $result; |
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| 551 | } |
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| 552 | |||
| 553 | // If result is null-like, return null. |
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| 554 | if (null === $result) { |
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| 555 | return null; |
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| 556 | } |
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| 557 | |||
| 558 | if ($returnType instanceof NonNullType) { |
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| 559 | $completed = $this->completeValue( |
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| 560 | $returnType->getOfType(), |
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| 561 | $fieldNodes, |
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| 562 | $info, |
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| 563 | $path, |
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| 564 | $result |
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| 565 | ); |
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| 566 | |||
| 567 | if ($completed === null) { |
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| 568 | throw new ExecutionException( |
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| 569 | sprintf( |
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| 570 | 'Cannot return null for non-nullable field %s.%s.', |
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| 571 | $info->getParentType(), $info->getFieldName() |
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| 572 | ) |
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| 573 | ); |
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| 574 | } |
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| 575 | |||
| 576 | return $completed; |
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| 577 | } |
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| 578 | |||
| 579 | // If field type is List, complete each item in the list with the inner type |
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| 580 | if ($returnType instanceof ListType) { |
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| 581 | return $this->completeListValue($returnType, $fieldNodes, $info, $path, $result); |
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| 582 | } |
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| 583 | |||
| 584 | |||
| 585 | // If field type is Scalar or Enum, serialize to a valid value, returning |
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| 586 | // null if serialization is not possible. |
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| 587 | if ($returnType instanceof LeafTypeInterface) { |
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| 588 | return $this->completeLeafValue($returnType, $result); |
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| 589 | } |
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| 590 | |||
| 591 | //@TODO Make a function for checking abstract type? |
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| 592 | if ($returnType instanceof InterfaceType || $returnType instanceof UnionType) { |
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| 593 | return $this->completeAbstractValue($returnType, $fieldNodes, $info, $path, $result); |
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| 594 | } |
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| 595 | |||
| 596 | // Field type must be Object, Interface or Union and expect sub-selections. |
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| 597 | if ($returnType instanceof ObjectType) { |
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| 598 | return $this->completeObjectValue($returnType, $fieldNodes, $info, $path, $result); |
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| 599 | } |
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| 600 | |||
| 601 | throw new ExecutionException("Cannot complete value of unexpected type \"{$returnType}\"."); |
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| 602 | } |
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| 603 | |||
| 604 | /** |
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| 605 | * @param AbstractTypeInterface $returnType |
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| 606 | * @param $fieldNodes |
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| 607 | * @param ResolveInfo $info |
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| 608 | * @param $path |
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| 609 | * @param $result |
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| 610 | * @return array|PromiseInterface |
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| 611 | * @throws ExecutionException |
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| 612 | * @throws InvalidTypeException |
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| 613 | * @throws \Digia\GraphQL\Error\InvariantException |
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| 614 | * @throws \Throwable |
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| 615 | */ |
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| 616 | private function completeAbstractValue( |
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| 617 | AbstractTypeInterface $returnType, |
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| 618 | $fieldNodes, |
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| 619 | ResolveInfo $info, |
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| 620 | $path, |
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| 621 | &$result |
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| 622 | ) { |
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| 623 | $runtimeType = $returnType->resolveType($result, $this->context->getContextValue(), $info); |
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| 624 | |||
| 625 | if (null === $runtimeType) { |
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| 626 | //@TODO Show warning |
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| 627 | $runtimeType = $this->defaultTypeResolver($result, $this->context->getContextValue(), $info, $returnType); |
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| 628 | } |
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| 629 | |||
| 630 | if ($this->isPromise($runtimeType)) { |
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| 631 | /** @var ExtendedPromiseInterface $runtimeType */ |
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| 632 | return $runtimeType->then(function ($resolvedRuntimeType) use ( |
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| 633 | $returnType, |
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| 634 | $fieldNodes, |
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| 635 | $info, |
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| 636 | $path, |
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| 637 | &$result |
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| 638 | ) { |
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| 639 | return $this->completeObjectValue( |
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| 640 | $this->ensureValidRuntimeType( |
||
| 641 | $resolvedRuntimeType, |
||
| 642 | $returnType, |
||
| 643 | $fieldNodes, |
||
| 644 | $info, |
||
| 645 | $result |
||
| 646 | ), |
||
| 647 | $fieldNodes, |
||
| 648 | $info, |
||
| 649 | $path, |
||
| 650 | $result |
||
| 651 | ); |
||
| 652 | }); |
||
| 653 | } |
||
| 654 | |||
| 655 | return $this->completeObjectValue( |
||
| 656 | $this->ensureValidRuntimeType( |
||
| 657 | $runtimeType, |
||
| 658 | $returnType, |
||
| 659 | $fieldNodes, |
||
| 660 | $info, |
||
| 661 | $result |
||
| 662 | ), |
||
| 663 | $fieldNodes, |
||
| 664 | $info, |
||
| 665 | $path, |
||
| 666 | $result |
||
| 667 | ); |
||
| 668 | } |
||
| 669 | |||
| 670 | /** |
||
| 671 | * @param $runtimeTypeOrName |
||
| 672 | * @param AbstractTypeInterface $returnType |
||
| 673 | * @param $fieldNodes |
||
| 674 | * @param ResolveInfo $info |
||
| 675 | * @param $result |
||
| 676 | * @return TypeInterface|ObjectType|null |
||
| 677 | * @throws ExecutionException |
||
| 678 | */ |
||
| 679 | private function ensureValidRuntimeType( |
||
| 680 | $runtimeTypeOrName, |
||
| 681 | AbstractTypeInterface $returnType, |
||
| 682 | $fieldNodes, |
||
| 683 | ResolveInfo $info, |
||
| 684 | &$result |
||
| 685 | ) { |
||
| 686 | $runtimeType = is_string($runtimeTypeOrName) |
||
| 687 | ? $this->context->getSchema()->getType($runtimeTypeOrName) |
||
| 688 | : $runtimeTypeOrName; |
||
| 689 | |||
| 690 | $runtimeTypeName = is_string($runtimeType) ?: $runtimeType->getName(); |
||
| 691 | $returnTypeName = $returnType->getName(); |
||
| 692 | |||
| 693 | if (!$runtimeType instanceof ObjectType) { |
||
| 694 | $parentTypeName = $info->getParentType()->getName(); |
||
| 695 | $fieldName = $info->getFieldName(); |
||
| 696 | |||
| 697 | throw new ExecutionException( |
||
| 698 | "Abstract type {$returnTypeName} must resolve to an Object type at runtime " . |
||
| 699 | "for field {$parentTypeName}.{$fieldName} with " . |
||
| 700 | 'value "' . $result . '", received "{$runtimeTypeName}".' |
||
| 701 | ); |
||
| 702 | } |
||
| 703 | |||
| 704 | if (!$this->context->getSchema()->isPossibleType($returnType, $runtimeType)) { |
||
| 705 | throw new ExecutionException( |
||
| 706 | "Runtime Object type \"{$runtimeTypeName}\" is not a possible type for \"{$returnTypeName}\"." |
||
| 707 | ); |
||
| 708 | } |
||
| 709 | |||
| 710 | if ($runtimeType !== $this->context->getSchema()->getType($runtimeType->getName())) { |
||
| 711 | throw new ExecutionException( |
||
| 712 | "Schema must contain unique named types but contains multiple types named \"{$runtimeTypeName}\". " . |
||
| 713 | "Make sure that `resolveType` function of abstract type \"{$returnTypeName}\" returns the same " . |
||
| 714 | "type instance as referenced anywhere else within the schema." |
||
| 715 | ); |
||
| 716 | } |
||
| 717 | |||
| 718 | return $runtimeType; |
||
| 719 | } |
||
| 720 | |||
| 721 | /** |
||
| 722 | * @param $value |
||
| 723 | * @param $context |
||
| 724 | * @param ResolveInfo $info |
||
| 725 | * @param AbstractTypeInterface $abstractType |
||
| 726 | * @return TypeInterface|null |
||
| 727 | */ |
||
| 728 | private function defaultTypeResolver($value, $context, ResolveInfo $info, AbstractTypeInterface $abstractType) |
||
| 729 | { |
||
| 730 | $possibleTypes = $info->getSchema()->getPossibleTypes($abstractType); |
||
| 731 | $promisedIsTypeOfResults = []; |
||
| 732 | |||
| 733 | foreach ($possibleTypes as $index => $type) { |
||
| 734 | $isTypeOfResult = $type->isTypeOf($value, $context, $info); |
||
| 735 | |||
| 736 | if (null !== $isTypeOfResult) { |
||
| 737 | if ($this->isPromise($isTypeOfResult)) { |
||
| 738 | $promisedIsTypeOfResults[$index] = $isTypeOfResult; |
||
| 739 | } elseif ($isTypeOfResult) { |
||
| 740 | return $type; |
||
| 741 | } |
||
| 742 | } |
||
| 743 | } |
||
| 744 | |||
| 745 | if (!empty($promisedIsTypeOfResults)) { |
||
| 746 | return \React\Promise\all($promisedIsTypeOfResults) |
||
| 747 | ->then(function ($isTypeOfResults) use ($possibleTypes) { |
||
| 748 | foreach ($isTypeOfResults as $index => $result) { |
||
| 749 | if ($result) { |
||
| 750 | return $possibleTypes[$index]; |
||
| 751 | } |
||
| 752 | } |
||
| 753 | return null; |
||
| 754 | }); |
||
| 755 | } |
||
| 756 | |||
| 757 | return null; |
||
| 758 | } |
||
| 759 | |||
| 760 | /** |
||
| 761 | * @param ListType $returnType |
||
| 762 | * @param $fieldNodes |
||
| 763 | * @param ResolveInfo $info |
||
| 764 | * @param $path |
||
| 765 | * @param $result |
||
| 766 | * @return array|\React\Promise\Promise |
||
| 767 | * @throws \Throwable |
||
| 768 | */ |
||
| 769 | private function completeListValue( |
||
| 770 | ListType $returnType, |
||
| 771 | $fieldNodes, |
||
| 772 | ResolveInfo $info, |
||
| 773 | $path, |
||
| 774 | &$result |
||
| 775 | ) { |
||
| 776 | $itemType = $returnType->getOfType(); |
||
| 777 | |||
| 778 | $completedItems = []; |
||
| 779 | $containsPromise = false; |
||
| 780 | foreach ($result as $key => $item) { |
||
| 781 | $fieldPath = $path; |
||
| 782 | $fieldPath[] = $key; |
||
| 783 | $completedItem = $this->completeValueCatchingError($itemType, $fieldNodes, $info, $fieldPath, $item); |
||
| 784 | $completedItems[] = $completedItem; |
||
| 785 | $containsPromise = $containsPromise || $this->isPromise($completedItem); |
||
| 786 | } |
||
| 787 | |||
| 788 | return $containsPromise ? \React\Promise\all($completedItems) : $completedItems; |
||
| 789 | } |
||
| 790 | |||
| 791 | /** |
||
| 792 | * @param LeafTypeInterface $returnType |
||
| 793 | * @param $result |
||
| 794 | * @return mixed |
||
| 795 | * @throws ExecutionException |
||
| 796 | */ |
||
| 797 | private function completeLeafValue(LeafTypeInterface $returnType, &$result) |
||
| 798 | { |
||
| 799 | $serializedResult = $returnType->serialize($result); |
||
| 800 | |||
| 801 | if ($serializedResult === null) { |
||
| 802 | throw new ExecutionException( |
||
| 803 | sprintf('Expected a value of type "%s" but received: %s', toString($returnType), toString($result)) |
||
| 804 | ); |
||
| 805 | } |
||
| 806 | |||
| 807 | return $serializedResult; |
||
| 808 | } |
||
| 809 | |||
| 810 | /** |
||
| 811 | * @param ObjectType $returnType |
||
| 812 | * @param $fieldNodes |
||
| 813 | * @param ResolveInfo $info |
||
| 814 | * @param $path |
||
| 815 | * @param $result |
||
| 816 | * @return array |
||
| 817 | * @throws ExecutionException |
||
| 818 | * @throws InvalidTypeException |
||
| 819 | * @throws \Digia\GraphQL\Error\InvariantException |
||
| 820 | * @throws \Throwable |
||
| 821 | */ |
||
| 822 | private function completeObjectValue( |
||
| 823 | ObjectType $returnType, |
||
| 824 | $fieldNodes, |
||
| 825 | ResolveInfo $info, |
||
| 826 | $path, |
||
| 827 | &$result |
||
| 828 | ) { |
||
| 829 | return $this->collectAndExecuteSubFields( |
||
| 830 | $returnType, |
||
| 831 | $fieldNodes, |
||
| 832 | $info, |
||
| 833 | $path, |
||
| 834 | $result |
||
| 835 | ); |
||
| 836 | } |
||
| 837 | |||
| 838 | /** |
||
| 839 | * @param Field $field |
||
| 840 | * @param FieldNode $fieldNode |
||
| 841 | * @param callable $resolveFunction |
||
| 842 | * @param $rootValue |
||
| 843 | * @param ExecutionContext $context |
||
| 844 | * @param ResolveInfo $info |
||
| 845 | * @return array|\Throwable |
||
| 846 | */ |
||
| 847 | private function resolveFieldValueOrError( |
||
| 848 | Field $field, |
||
| 849 | FieldNode $fieldNode, |
||
| 850 | ?callable $resolveFunction, |
||
| 851 | $rootValue, |
||
| 852 | ExecutionContext $context, |
||
| 853 | ResolveInfo $info |
||
| 854 | ) { |
||
| 855 | try { |
||
| 856 | $args = $this->valuesResolver->coerceArgumentValues($field, $fieldNode, $context->getVariableValues()); |
||
| 857 | |||
| 858 | return $resolveFunction($rootValue, $args, $context->getContextValue(), $info); |
||
| 859 | } catch (\Throwable $error) { |
||
| 860 | return $error; |
||
| 861 | } |
||
| 862 | } |
||
| 863 | |||
| 864 | /** |
||
| 865 | * Try to resolve a field without any field resolver function. |
||
| 866 | * |
||
| 867 | * @param array|object $rootValue |
||
| 868 | * @param $args |
||
| 869 | * @param $context |
||
| 870 | * @param ResolveInfo $info |
||
| 871 | * @return mixed|null |
||
| 872 | */ |
||
| 873 | public static function defaultFieldResolver($rootValue, $args, $context, ResolveInfo $info) |
||
| 874 | { |
||
| 875 | $fieldName = $info->getFieldName(); |
||
| 876 | $property = null; |
||
| 877 | |||
| 878 | if (is_array($rootValue) && isset($rootValue[$fieldName])) { |
||
| 879 | $property = $rootValue[$fieldName]; |
||
| 880 | } |
||
| 881 | |||
| 882 | if (is_object($rootValue)) { |
||
| 883 | $getter = 'get' . ucfirst($fieldName); |
||
| 884 | if (method_exists($rootValue, $getter)) { |
||
| 885 | $property = $rootValue->{$getter}(); |
||
| 886 | } elseif (property_exists($rootValue, $fieldName)) { |
||
| 887 | $property = $rootValue->{$fieldName}; |
||
| 888 | } |
||
| 889 | } |
||
| 890 | |||
| 891 | |||
| 892 | return $property instanceof \Closure ? $property($rootValue, $args, $context, $info) : $property; |
||
| 893 | } |
||
| 894 | |||
| 895 | /** |
||
| 896 | * @param ObjectType $returnType |
||
| 897 | * @param $fieldNodes |
||
| 898 | * @param ResolveInfo $info |
||
| 899 | * @param $path |
||
| 900 | * @param $result |
||
| 901 | * @return array |
||
| 902 | * @throws InvalidTypeException |
||
| 903 | * @throws \Digia\GraphQL\Error\ExecutionException |
||
| 904 | * @throws \Digia\GraphQL\Error\InvariantException |
||
| 905 | * @throws \Throwable |
||
| 906 | */ |
||
| 907 | private function collectAndExecuteSubFields( |
||
| 934 | } |
||
| 935 | |||
| 936 | /** |
||
| 937 | * @param $value |
||
| 938 | * @return bool |
||
| 939 | */ |
||
| 940 | protected function isPromise($value): bool |
||
| 943 | } |
||
| 944 | } |
||
| 945 |
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.