digiaonline /
graphql-php
| Total Complexity | 102 |
| Total Lines | 935 |
| 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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| 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 | |||
| 284 | $finalResults = []; |
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| 285 | |||
| 286 | $promise = new \React\Promise\FulfilledPromise([]); |
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| 287 | |||
| 288 | $resolve = function ($results, $fieldName, $path, $objectType, $rootValue, $fieldNodes) { |
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| 289 | $fieldPath = $path; |
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| 290 | $fieldPath[] = $fieldName; |
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| 291 | try { |
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| 292 | $result = $this->resolveField($objectType, $rootValue, $fieldNodes, $fieldPath); |
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| 293 | } catch (UndefinedException $ex) { |
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| 294 | return null; |
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| 295 | } |
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| 296 | |||
| 297 | if ($this->isPromise($result)) { |
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| 298 | /** @var ExtendedPromiseInterface $result */ |
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| 299 | return $result->then(function ($resolvedResult) use ($fieldName, $results) { |
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| 300 | $results[$fieldName] = $resolvedResult; |
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| 301 | return $results; |
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| 302 | }); |
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| 303 | } |
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| 304 | |||
| 305 | $results[$fieldName] = $result; |
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| 306 | |||
| 307 | return $results; |
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| 308 | }; |
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| 309 | |||
| 310 | foreach ($fields as $fieldName => $fieldNodes) { |
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| 311 | $promise = $promise->then(function ($resolvedResults) use ($resolve, $fieldName, $path, $objectType, $rootValue, $fieldNodes) { |
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| 312 | return $resolve($resolvedResults, $fieldName, $path, $objectType, $rootValue, $fieldNodes); |
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| 313 | }); |
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| 314 | } |
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| 315 | |||
| 316 | $promise->then(function ($resolvedResults) use (&$finalResults) { |
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| 317 | $finalResults = $resolvedResults ?? []; |
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| 318 | }); |
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| 319 | |||
| 320 | return $finalResults; |
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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 | */ |
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| 330 | public function getFieldDefinition( |
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| 331 | Schema $schema, |
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| 332 | ObjectType $parentType, |
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| 333 | string $fieldName |
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| 334 | ) { |
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| 335 | $schemaMetaFieldDefinition = SchemaMetaFieldDefinition(); |
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| 336 | $typeMetaFieldDefinition = TypeMetaFieldDefinition(); |
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| 337 | $typeNameMetaFieldDefinition = TypeNameMetaFieldDefinition(); |
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| 338 | |||
| 339 | if ($fieldName === $schemaMetaFieldDefinition->getName() && $schema->getQueryType() === $parentType) { |
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| 340 | return $schemaMetaFieldDefinition; |
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| 341 | } |
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| 342 | |||
| 343 | if ($fieldName === $typeMetaFieldDefinition->getName() && $schema->getQueryType() === $parentType) { |
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| 344 | return $typeMetaFieldDefinition; |
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| 345 | } |
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| 346 | |||
| 347 | if ($fieldName === $typeNameMetaFieldDefinition->getName()) { |
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| 348 | return $typeNameMetaFieldDefinition; |
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| 349 | } |
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| 350 | |||
| 351 | $fields = $parentType->getFields(); |
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| 352 | |||
| 353 | return $fields[$fieldName] ?? null; |
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| 354 | } |
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| 355 | |||
| 356 | |||
| 357 | /** |
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| 358 | * @param ObjectType $parentType |
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| 359 | * @param $rootValue |
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| 360 | * @param $fieldNodes |
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| 361 | * @param $path |
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| 362 | * @return array|null|\Throwable |
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| 363 | * @throws InvalidTypeException |
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| 364 | * @throws \Digia\GraphQL\Error\ExecutionException |
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| 365 | * @throws \Digia\GraphQL\Error\InvariantException |
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| 366 | * @throws \Throwable |
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| 367 | */ |
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| 368 | protected function resolveField( |
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| 369 | ObjectType $parentType, |
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| 370 | $rootValue, |
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| 371 | $fieldNodes, |
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| 372 | $path |
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| 373 | ) { |
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| 374 | /** @var FieldNode $fieldNode */ |
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| 375 | $fieldNode = $fieldNodes[0]; |
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| 376 | |||
| 377 | $field = $this->getFieldDefinition($this->context->getSchema(), $parentType, $fieldNode->getNameValue()); |
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| 378 | |||
| 379 | if (null === $field) { |
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| 380 | throw new UndefinedException('Undefined field definition.'); |
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| 381 | } |
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| 382 | |||
| 383 | $info = $this->buildResolveInfo($fieldNodes, $fieldNode, $field, $parentType, $path, $this->context); |
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| 384 | |||
| 385 | $resolveFunction = $this->determineResolveFunction($field, $parentType, $this->context); |
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| 386 | |||
| 387 | $result = $this->resolveFieldValueOrError( |
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| 388 | $field, |
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| 389 | $fieldNode, |
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| 390 | $resolveFunction, |
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| 391 | $rootValue, |
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| 392 | $this->context, |
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| 393 | $info |
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| 394 | ); |
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| 395 | |||
| 396 | $result = $this->completeValueCatchingError( |
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| 397 | $field->getType(), |
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| 398 | $fieldNodes, |
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| 399 | $info, |
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| 400 | $path, |
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| 401 | $result// $result is passed as $source |
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| 402 | ); |
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| 403 | |||
| 404 | return $result; |
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| 405 | } |
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| 406 | |||
| 407 | /** |
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| 408 | * @param array $fieldNodes |
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| 409 | * @param FieldNode $fieldNode |
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| 410 | * @param Field $field |
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| 411 | * @param ObjectType $parentType |
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| 412 | * @param $path |
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| 413 | * @param ExecutionContext $context |
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| 414 | * @return ResolveInfo |
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| 415 | */ |
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| 416 | private function buildResolveInfo( |
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| 417 | array $fieldNodes, |
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| 418 | FieldNode $fieldNode, |
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| 419 | Field $field, |
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| 420 | ObjectType $parentType, |
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| 421 | $path, |
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| 422 | ExecutionContext $context |
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| 423 | ) { |
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| 424 | return new ResolveInfo([ |
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| 425 | 'fieldName' => $fieldNode->getNameValue(), |
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| 426 | 'fieldNodes' => $fieldNodes, |
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| 427 | 'returnType' => $field->getType(), |
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| 428 | 'parentType' => $parentType, |
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| 429 | 'path' => $path, |
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| 430 | 'schema' => $context->getSchema(), |
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| 431 | 'fragments' => $context->getFragments(), |
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| 432 | 'rootValue' => $context->getRootValue(), |
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| 433 | 'operation' => $context->getOperation(), |
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| 434 | 'variableValues' => $context->getVariableValues(), |
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| 435 | ]); |
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| 436 | } |
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| 437 | |||
| 438 | /** |
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| 439 | * @param Field $field |
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| 440 | * @param ObjectType $objectType |
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| 441 | * @param ExecutionContext $context |
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| 442 | * @return callable|mixed|null |
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| 443 | */ |
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| 444 | private function determineResolveFunction( |
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| 445 | Field $field, |
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| 446 | ObjectType $objectType, |
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| 447 | ExecutionContext $context |
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| 448 | ) { |
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| 449 | |||
| 450 | if ($field->hasResolve()) { |
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| 451 | return $field->getResolve(); |
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| 452 | } |
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| 453 | |||
| 454 | if ($objectType->hasResolve()) { |
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| 455 | return $objectType->getResolve(); |
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| 456 | } |
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| 457 | |||
| 458 | return $this->context->getFieldResolver() ?? self::$defaultFieldResolver; |
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| 459 | } |
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| 460 | |||
| 461 | /** |
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| 462 | * @param TypeInterface $fieldType |
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| 463 | * @param $fieldNodes |
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| 464 | * @param ResolveInfo $info |
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| 465 | * @param $path |
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| 466 | * @param $result |
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| 467 | * @return null |
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| 468 | * @throws \Throwable |
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| 469 | */ |
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| 470 | public function completeValueCatchingError( |
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| 471 | TypeInterface $fieldType, |
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| 472 | $fieldNodes, |
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| 473 | ResolveInfo $info, |
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| 474 | $path, |
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| 475 | &$result |
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| 476 | ) { |
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| 477 | if ($fieldType instanceof NonNullType) { |
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| 478 | return $this->completeValueWithLocatedError( |
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| 479 | $fieldType, |
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| 480 | $fieldNodes, |
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| 481 | $info, |
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| 482 | $path, |
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| 483 | $result |
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| 484 | ); |
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| 485 | } |
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| 486 | |||
| 487 | try { |
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| 488 | $completed = $this->completeValueWithLocatedError( |
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| 489 | $fieldType, |
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| 490 | $fieldNodes, |
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| 491 | $info, |
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| 492 | $path, |
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| 493 | $result |
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| 494 | ); |
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| 495 | |||
| 496 | if ($this->isPromise($completed)) { |
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| 497 | $context = $this->context; |
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| 498 | /** @var ExtendedPromiseInterface $completed */ |
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| 499 | return $completed->then(null, function ($error) use ($context) { |
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| 500 | $context->addError($error); |
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| 501 | return new \React\Promise\FulfilledPromise(null); |
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| 502 | }); |
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| 503 | } |
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| 504 | |||
| 505 | return $completed; |
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| 506 | } catch (\Exception $ex) { |
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| 507 | $this->context->addError(new ExecutionException($ex->getMessage())); |
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| 508 | return null; |
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| 509 | } |
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| 510 | } |
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| 511 | |||
| 512 | /** |
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| 513 | * @param TypeInterface $fieldType |
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| 514 | * @param $fieldNodes |
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| 515 | * @param ResolveInfo $info |
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| 516 | * @param $path |
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| 517 | * @param $result |
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| 518 | * @throws \Throwable |
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| 519 | */ |
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| 520 | public function completeValueWithLocatedError( |
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| 521 | TypeInterface $fieldType, |
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| 522 | $fieldNodes, |
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| 523 | ResolveInfo $info, |
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| 524 | $path, |
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| 525 | $result |
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| 526 | ) { |
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| 527 | try { |
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| 528 | $completed = $this->completeValue( |
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| 529 | $fieldType, |
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| 530 | $fieldNodes, |
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| 531 | $info, |
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| 532 | $path, |
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| 533 | $result |
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| 534 | ); |
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| 535 | |||
| 536 | return $completed; |
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| 537 | } catch (\Exception $ex) { |
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| 538 | //@TODO throw located error |
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| 539 | throw $ex; |
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| 540 | } catch (\Throwable $ex) { |
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| 541 | //@TODO throw located error |
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| 542 | throw $ex; |
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| 543 | } |
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| 544 | } |
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| 545 | |||
| 546 | /** |
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| 547 | * @param TypeInterface $returnType |
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| 548 | * @param $fieldNodes |
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| 549 | * @param ResolveInfo $info |
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| 550 | * @param $path |
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| 551 | * @param $result |
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| 552 | * @return array|mixed |
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| 553 | * @throws ExecutionException |
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| 554 | * @throws \Throwable |
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| 555 | */ |
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| 556 | private function completeValue( |
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| 557 | TypeInterface $returnType, |
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| 558 | $fieldNodes, |
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| 559 | ResolveInfo $info, |
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| 560 | $path, |
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| 561 | &$result |
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| 562 | ) { |
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| 563 | if ($this->isPromise($result)) { |
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| 564 | /** @var ExtendedPromiseInterface $result */ |
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| 565 | return $result->then(function (&$value) use ($returnType, $fieldNodes, $info, $path) { |
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| 566 | return $this->completeValue($returnType, $fieldNodes, $info, $path, $value); |
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| 567 | }); |
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| 568 | } |
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| 569 | |||
| 570 | if ($result instanceof \Throwable) { |
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| 571 | throw $result; |
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| 572 | } |
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| 573 | |||
| 574 | // If result is null-like, return null. |
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| 575 | if (null === $result) { |
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| 576 | return null; |
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| 577 | } |
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| 578 | |||
| 579 | if ($returnType instanceof NonNullType) { |
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| 580 | $completed = $this->completeValue( |
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| 581 | $returnType->getOfType(), |
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| 582 | $fieldNodes, |
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| 583 | $info, |
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| 584 | $path, |
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| 585 | $result |
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| 586 | ); |
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| 587 | |||
| 588 | if ($completed === null) { |
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| 589 | throw new ExecutionException( |
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| 590 | sprintf( |
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| 591 | 'Cannot return null for non-nullable field %s.%s.', |
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| 592 | $info->getParentType(), $info->getFieldName() |
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| 593 | ) |
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| 594 | ); |
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| 595 | } |
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| 596 | |||
| 597 | return $completed; |
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| 598 | } |
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| 599 | |||
| 600 | // If field type is List, complete each item in the list with the inner type |
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| 601 | if ($returnType instanceof ListType) { |
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| 602 | return $this->completeListValue($returnType, $fieldNodes, $info, $path, $result); |
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| 603 | } |
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| 604 | |||
| 605 | |||
| 606 | // If field type is Scalar or Enum, serialize to a valid value, returning |
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| 607 | // null if serialization is not possible. |
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| 608 | if ($returnType instanceof LeafTypeInterface) { |
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| 609 | return $this->completeLeafValue($returnType, $result); |
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| 610 | } |
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| 611 | |||
| 612 | //@TODO Make a function for checking abstract type? |
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| 613 | if ($returnType instanceof InterfaceType || $returnType instanceof UnionType) { |
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| 614 | return $this->completeAbstractValue($returnType, $fieldNodes, $info, $path, $result); |
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| 615 | } |
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| 616 | |||
| 617 | // Field type must be Object, Interface or Union and expect sub-selections. |
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| 618 | if ($returnType instanceof ObjectType) { |
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| 619 | return $this->completeObjectValue($returnType, $fieldNodes, $info, $path, $result); |
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| 620 | } |
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| 621 | |||
| 622 | throw new ExecutionException("Cannot complete value of unexpected type \"{$returnType}\"."); |
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| 623 | } |
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| 624 | |||
| 625 | /** |
||
| 626 | * @param AbstractTypeInterface $returnType |
||
| 627 | * @param $fieldNodes |
||
| 628 | * @param ResolveInfo $info |
||
| 629 | * @param $path |
||
| 630 | * @param $result |
||
| 631 | * @return array|PromiseInterface |
||
| 632 | * @throws ExecutionException |
||
| 633 | * @throws InvalidTypeException |
||
| 634 | * @throws \Digia\GraphQL\Error\InvariantException |
||
| 635 | * @throws \Throwable |
||
| 636 | */ |
||
| 637 | private function completeAbstractValue( |
||
| 638 | AbstractTypeInterface $returnType, |
||
| 639 | $fieldNodes, |
||
| 640 | ResolveInfo $info, |
||
| 641 | $path, |
||
| 642 | &$result |
||
| 643 | ) { |
||
| 644 | $runtimeType = $returnType->resolveType($result, $this->context->getContextValue(), $info); |
||
| 645 | |||
| 646 | if (null === $runtimeType) { |
||
| 647 | //@TODO Show warning |
||
| 648 | $runtimeType = $this->defaultTypeResolver($result, $this->context->getContextValue(), $info, $returnType); |
||
| 649 | } |
||
| 650 | |||
| 651 | if ($this->isPromise($runtimeType)) { |
||
| 652 | /** @var ExtendedPromiseInterface $runtimeType */ |
||
| 653 | return $runtimeType->then(function ($resolvedRuntimeType) use ( |
||
| 654 | $returnType, |
||
| 655 | $fieldNodes, |
||
| 656 | $info, |
||
| 657 | $path, |
||
| 658 | &$result |
||
| 659 | ) { |
||
| 660 | return $this->completeObjectValue( |
||
| 661 | $this->ensureValidRuntimeType( |
||
| 662 | $resolvedRuntimeType, |
||
| 663 | $returnType, |
||
| 664 | $fieldNodes, |
||
| 665 | $info, |
||
| 666 | $result |
||
| 667 | ), |
||
| 668 | $fieldNodes, |
||
| 669 | $info, |
||
| 670 | $path, |
||
| 671 | $result |
||
| 672 | ); |
||
| 673 | }); |
||
| 674 | } |
||
| 675 | |||
| 676 | return $this->completeObjectValue( |
||
| 677 | $this->ensureValidRuntimeType( |
||
| 678 | $runtimeType, |
||
| 679 | $returnType, |
||
| 680 | $fieldNodes, |
||
| 681 | $info, |
||
| 682 | $result |
||
| 683 | ), |
||
| 684 | $fieldNodes, |
||
| 685 | $info, |
||
| 686 | $path, |
||
| 687 | $result |
||
| 688 | ); |
||
| 689 | } |
||
| 690 | |||
| 691 | /** |
||
| 692 | * @param $runtimeTypeOrName |
||
| 693 | * @param AbstractTypeInterface $returnType |
||
| 694 | * @param $fieldNodes |
||
| 695 | * @param ResolveInfo $info |
||
| 696 | * @param $result |
||
| 697 | * @return TypeInterface|ObjectType|null |
||
| 698 | * @throws ExecutionException |
||
| 699 | */ |
||
| 700 | private function ensureValidRuntimeType( |
||
| 701 | $runtimeTypeOrName, |
||
| 702 | AbstractTypeInterface $returnType, |
||
| 703 | $fieldNodes, |
||
| 704 | ResolveInfo $info, |
||
| 705 | &$result |
||
| 706 | ) { |
||
| 707 | $runtimeType = is_string($runtimeTypeOrName) |
||
| 708 | ? $this->context->getSchema()->getType($runtimeTypeOrName) |
||
| 709 | : $runtimeTypeOrName; |
||
| 710 | |||
| 711 | $runtimeTypeName = is_string($runtimeType) ?: $runtimeType->getName(); |
||
| 712 | $returnTypeName = $returnType->getName(); |
||
| 713 | |||
| 714 | if (!$runtimeType instanceof ObjectType) { |
||
| 715 | $parentTypeName = $info->getParentType()->getName(); |
||
| 716 | $fieldName = $info->getFieldName(); |
||
| 717 | |||
| 718 | throw new ExecutionException( |
||
| 719 | "Abstract type {$returnTypeName} must resolve to an Object type at runtime " . |
||
| 720 | "for field {$parentTypeName}.{$fieldName} with " . |
||
| 721 | 'value "' . $result . '", received "{$runtimeTypeName}".' |
||
| 722 | ); |
||
| 723 | } |
||
| 724 | |||
| 725 | if (!$this->context->getSchema()->isPossibleType($returnType, $runtimeType)) { |
||
| 726 | throw new ExecutionException( |
||
| 727 | "Runtime Object type \"{$runtimeTypeName}\" is not a possible type for \"{$returnTypeName}\"." |
||
| 728 | ); |
||
| 729 | } |
||
| 730 | |||
| 731 | if ($runtimeType !== $this->context->getSchema()->getType($runtimeType->getName())) { |
||
| 732 | throw new ExecutionException( |
||
| 733 | "Schema must contain unique named types but contains multiple types named \"{$runtimeTypeName}\". " . |
||
| 734 | "Make sure that `resolveType` function of abstract type \"{$returnTypeName}\" returns the same " . |
||
| 735 | "type instance as referenced anywhere else within the schema." |
||
| 736 | ); |
||
| 737 | } |
||
| 738 | |||
| 739 | return $runtimeType; |
||
| 740 | } |
||
| 741 | |||
| 742 | /** |
||
| 743 | * @param $value |
||
| 744 | * @param $context |
||
| 745 | * @param ResolveInfo $info |
||
| 746 | * @param AbstractTypeInterface $abstractType |
||
| 747 | * @return TypeInterface|null |
||
| 748 | * @throws ExecutionException |
||
| 749 | */ |
||
| 750 | private function defaultTypeResolver($value, $context, ResolveInfo $info, AbstractTypeInterface $abstractType) |
||
| 751 | { |
||
| 752 | $possibleTypes = $info->getSchema()->getPossibleTypes($abstractType); |
||
| 753 | $promisedIsTypeOfResults = []; |
||
| 754 | |||
| 755 | foreach ($possibleTypes as $index => $type) { |
||
| 756 | $isTypeOfResult = $type->isTypeOf($value, $context, $info); |
||
| 757 | if (null !== $isTypeOfResult) { |
||
| 758 | if ($this->isPromise($isTypeOfResult)) { |
||
| 759 | $promisedIsTypeOfResults[$index] = $isTypeOfResult; |
||
| 760 | continue; |
||
| 761 | } |
||
| 762 | |||
| 763 | if ($isTypeOfResult === true) { |
||
| 764 | return $type; |
||
| 765 | } |
||
| 766 | |||
| 767 | if (\is_array($value)) { |
||
| 768 | //@TODO Make `type` configurable |
||
| 769 | if (isset($value['type']) && $value['type'] === $type->getName()) { |
||
| 770 | return $type; |
||
| 771 | } |
||
| 772 | } |
||
| 773 | } |
||
| 774 | } |
||
| 775 | |||
| 776 | if (!empty($promisedIsTypeOfResults)) { |
||
| 777 | return \React\Promise\all($promisedIsTypeOfResults) |
||
| 778 | ->then(function ($isTypeOfResults) use ($possibleTypes) { |
||
| 779 | foreach ($isTypeOfResults as $index => $result) { |
||
| 780 | if ($result) { |
||
| 781 | return $possibleTypes[$index]; |
||
| 782 | } |
||
| 783 | } |
||
| 784 | return null; |
||
| 785 | }); |
||
| 786 | } |
||
| 787 | |||
| 788 | return null; |
||
| 789 | } |
||
| 790 | |||
| 791 | /** |
||
| 792 | * @param ListType $returnType |
||
| 793 | * @param $fieldNodes |
||
| 794 | * @param ResolveInfo $info |
||
| 795 | * @param $path |
||
| 796 | * @param $result |
||
| 797 | * @return array|\React\Promise\Promise |
||
| 798 | * @throws \Throwable |
||
| 799 | */ |
||
| 800 | private function completeListValue( |
||
| 801 | ListType $returnType, |
||
| 802 | $fieldNodes, |
||
| 803 | ResolveInfo $info, |
||
| 804 | $path, |
||
| 805 | &$result |
||
| 806 | ) { |
||
| 807 | $itemType = $returnType->getOfType(); |
||
| 808 | |||
| 809 | $completedItems = []; |
||
| 810 | $containsPromise = false; |
||
| 811 | foreach ($result as $key => $item) { |
||
| 812 | $fieldPath = $path; |
||
| 813 | $fieldPath[] = $key; |
||
| 814 | $completedItem = $this->completeValueCatchingError($itemType, $fieldNodes, $info, $fieldPath, $item); |
||
| 815 | $completedItems[] = $completedItem; |
||
| 816 | $containsPromise = $containsPromise || $this->isPromise($completedItem); |
||
| 817 | } |
||
| 818 | |||
| 819 | return $containsPromise ? \React\Promise\all($completedItems) : $completedItems; |
||
| 820 | } |
||
| 821 | |||
| 822 | /** |
||
| 823 | * @param LeafTypeInterface $returnType |
||
| 824 | * @param $result |
||
| 825 | * @return mixed |
||
| 826 | * @throws ExecutionException |
||
| 827 | */ |
||
| 828 | private function completeLeafValue(LeafTypeInterface $returnType, &$result) |
||
| 829 | { |
||
| 830 | $serializedResult = $returnType->serialize($result); |
||
| 831 | |||
| 832 | if ($serializedResult === null) { |
||
| 833 | throw new ExecutionException( |
||
| 834 | sprintf('Expected a value of type "%s" but received: %s', (string)$returnType, toString($result)) |
||
| 835 | ); |
||
| 836 | } |
||
| 837 | |||
| 838 | return $serializedResult; |
||
| 839 | } |
||
| 840 | |||
| 841 | /** |
||
| 842 | * @param ObjectType $returnType |
||
| 843 | * @param $fieldNodes |
||
| 844 | * @param ResolveInfo $info |
||
| 845 | * @param $path |
||
| 846 | * @param $result |
||
| 847 | * @return array |
||
| 848 | * @throws ExecutionException |
||
| 849 | * @throws InvalidTypeException |
||
| 850 | * @throws \Digia\GraphQL\Error\InvariantException |
||
| 851 | * @throws \Throwable |
||
| 852 | */ |
||
| 853 | private function completeObjectValue( |
||
| 854 | ObjectType $returnType, |
||
| 855 | $fieldNodes, |
||
| 856 | ResolveInfo $info, |
||
| 857 | $path, |
||
| 858 | &$result |
||
| 859 | ) { |
||
| 860 | return $this->collectAndExecuteSubFields( |
||
| 861 | $returnType, |
||
| 862 | $fieldNodes, |
||
| 863 | $info, |
||
| 864 | $path, |
||
| 865 | $result |
||
| 866 | ); |
||
| 867 | } |
||
| 868 | |||
| 869 | /** |
||
| 870 | * @param Field $field |
||
| 871 | * @param FieldNode $fieldNode |
||
| 872 | * @param callable $resolveFunction |
||
| 873 | * @param $rootValue |
||
| 874 | * @param ExecutionContext $context |
||
| 875 | * @param ResolveInfo $info |
||
| 876 | * @return array|\Throwable |
||
| 877 | */ |
||
| 878 | private function resolveFieldValueOrError( |
||
| 879 | Field $field, |
||
| 880 | FieldNode $fieldNode, |
||
| 881 | ?callable $resolveFunction, |
||
| 882 | $rootValue, |
||
| 883 | ExecutionContext $context, |
||
| 884 | ResolveInfo $info |
||
| 885 | ) { |
||
| 886 | try { |
||
| 887 | $args = $this->valuesResolver->coerceArgumentValues($field, $fieldNode, $context->getVariableValues()); |
||
| 888 | |||
| 889 | return $resolveFunction($rootValue, $args, $context->getContextValue(), $info); |
||
| 890 | } catch (\Throwable $error) { |
||
| 891 | return $error; |
||
| 892 | } |
||
| 893 | } |
||
| 894 | |||
| 895 | /** |
||
| 896 | * Try to resolve a field without any field resolver function. |
||
| 897 | * |
||
| 898 | * @param array|object $rootValue |
||
| 899 | * @param $args |
||
| 900 | * @param $context |
||
| 901 | * @param ResolveInfo $info |
||
| 902 | * @return mixed|null |
||
| 903 | */ |
||
| 904 | public static function defaultFieldResolver($rootValue, $args, $context, ResolveInfo $info) |
||
| 905 | { |
||
| 906 | $fieldName = $info->getFieldName(); |
||
| 907 | $property = null; |
||
| 908 | |||
| 909 | if (is_array($rootValue) && isset($rootValue[$fieldName])) { |
||
| 910 | $property = $rootValue[$fieldName]; |
||
| 911 | } |
||
| 912 | |||
| 913 | if (is_object($rootValue)) { |
||
| 914 | $getter = 'get' . ucfirst($fieldName); |
||
| 915 | if (method_exists($rootValue, $getter)) { |
||
| 916 | $property = $rootValue->{$getter}(); |
||
| 917 | } elseif (property_exists($rootValue, $fieldName)) { |
||
| 918 | $property = $rootValue->{$fieldName}; |
||
| 919 | } |
||
| 920 | } |
||
| 921 | |||
| 922 | |||
| 923 | return $property instanceof \Closure ? $property($rootValue, $args, $context, $info) : $property; |
||
| 924 | } |
||
| 925 | |||
| 926 | /** |
||
| 927 | * @param ObjectType $returnType |
||
| 928 | * @param $fieldNodes |
||
| 929 | * @param ResolveInfo $info |
||
| 930 | * @param $path |
||
| 931 | * @param $result |
||
| 932 | * @return array |
||
| 933 | * @throws InvalidTypeException |
||
| 934 | * @throws \Digia\GraphQL\Error\ExecutionException |
||
| 935 | * @throws \Digia\GraphQL\Error\InvariantException |
||
| 936 | * @throws \Throwable |
||
| 937 | */ |
||
| 938 | private function collectAndExecuteSubFields( |
||
| 965 | } |
||
| 966 | |||
| 967 | /** |
||
| 968 | * @param $value |
||
| 969 | * @return bool |
||
| 970 | */ |
||
| 971 | protected function isPromise($value): bool |
||
| 974 | } |
||
| 975 | } |
||
| 976 |
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.