digiaonline /
graphql-php
| Total Complexity | 85 |
| Total Lines | 828 |
| 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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| 36 | abstract class ExecutionStrategy |
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| 37 | { |
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| 38 | /** |
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| 39 | * @var ExecutionContext |
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| 40 | */ |
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| 41 | protected $context; |
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| 42 | |||
| 43 | /** |
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| 44 | * @var OperationDefinitionNode |
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| 45 | */ |
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| 46 | protected $operation; |
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| 47 | |||
| 48 | /** |
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| 49 | * @var mixed |
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| 50 | */ |
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| 51 | protected $rootValue; |
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| 52 | |||
| 53 | |||
| 54 | /** |
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| 55 | * @var ValuesResolver |
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| 56 | */ |
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| 57 | protected $valuesResolver; |
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| 58 | |||
| 59 | /** |
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| 60 | * @var array |
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| 61 | */ |
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| 62 | protected $finalResult; |
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| 63 | |||
| 64 | /** |
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| 65 | * @var array |
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| 66 | */ |
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| 67 | protected static $defaultFieldResolver = [__CLASS__, 'defaultFieldResolver']; |
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| 68 | |||
| 69 | /** |
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| 70 | * AbstractStrategy constructor. |
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| 71 | * @param ExecutionContext $context |
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| 72 | * |
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| 73 | * @param OperationDefinitionNode $operation |
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| 74 | */ |
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| 75 | public function __construct( |
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| 76 | ExecutionContext $context, |
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| 77 | OperationDefinitionNode $operation, |
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| 78 | $rootValue |
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| 79 | ) { |
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| 80 | $this->context = $context; |
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| 81 | $this->operation = $operation; |
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| 82 | $this->rootValue = $rootValue; |
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| 83 | $this->valuesResolver = new ValuesResolver(); |
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| 84 | } |
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| 85 | |||
| 86 | /** |
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| 87 | * @return array|null |
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| 88 | */ |
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| 89 | abstract function execute(): ?array; |
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| 90 | |||
| 91 | /** |
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| 92 | * @param ObjectType $runtimeType |
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| 93 | * @param SelectionSetNode $selectionSet |
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| 94 | * @param $fields |
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| 95 | * @param $visitedFragmentNames |
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| 96 | * @return mixed |
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| 97 | * @throws InvalidTypeException |
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| 98 | * @throws \Digia\GraphQL\Error\ExecutionException |
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| 99 | * @throws \Digia\GraphQL\Error\InvariantException |
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| 100 | */ |
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| 101 | protected function collectFields( |
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| 102 | ObjectType $runtimeType, |
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| 103 | SelectionSetNode $selectionSet, |
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| 104 | &$fields, |
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| 105 | &$visitedFragmentNames |
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| 106 | ) { |
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| 107 | foreach ($selectionSet->getSelections() as $selection) { |
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| 108 | // Check if this Node should be included first |
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| 109 | if (!$this->shouldIncludeNode($selection)) { |
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| 110 | continue; |
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| 111 | } |
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| 112 | // Collect fields |
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| 113 | if ($selection instanceof FieldNode) { |
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| 114 | $fieldName = $this->getFieldNameKey($selection); |
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| 115 | |||
| 116 | if (!isset($fields[$fieldName])) { |
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| 117 | $fields[$fieldName] = []; |
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| 118 | } |
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| 119 | |||
| 120 | $fields[$fieldName][] = $selection; |
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| 121 | } elseif ($selection instanceof InlineFragmentNode) { |
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| 122 | if (!$this->doesFragmentConditionMatch($selection, $runtimeType)) { |
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| 123 | continue; |
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| 124 | } |
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| 125 | |||
| 126 | $this->collectFields($runtimeType, $selection->getSelectionSet(), $fields, $visitedFragmentNames); |
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| 127 | } elseif ($selection instanceof FragmentSpreadNode) { |
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| 128 | $fragmentName = $selection->getNameValue(); |
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| 129 | |||
| 130 | if (!empty($visitedFragmentNames[$fragmentName])) { |
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| 131 | continue; |
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| 132 | } |
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| 133 | |||
| 134 | $visitedFragmentNames[$fragmentName] = true; |
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| 135 | /** @var FragmentDefinitionNode $fragment */ |
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| 136 | $fragment = $this->context->getFragments()[$fragmentName]; |
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| 137 | $this->collectFields($runtimeType, $fragment->getSelectionSet(), $fields, $visitedFragmentNames); |
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| 138 | } |
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| 139 | } |
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| 140 | |||
| 141 | return $fields; |
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| 142 | } |
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| 143 | |||
| 144 | |||
| 145 | /** |
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| 146 | * @param $node |
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| 147 | * @return bool |
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| 148 | * @throws InvalidTypeException |
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| 149 | * @throws \Digia\GraphQL\Error\ExecutionException |
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| 150 | * @throws \Digia\GraphQL\Error\InvariantException |
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| 151 | */ |
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| 152 | private function shouldIncludeNode(NodeInterface $node): bool |
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| 153 | { |
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| 154 | |||
| 155 | $contextVariables = $this->context->getVariableValues(); |
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| 156 | |||
| 157 | $skip = $this->valuesResolver->getDirectiveValues(GraphQLSkipDirective(), $node, $contextVariables); |
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| 158 | |||
| 159 | if ($skip && $skip['if'] === true) { |
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| 160 | return false; |
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| 161 | } |
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| 162 | |||
| 163 | $include = $this->valuesResolver->getDirectiveValues(GraphQLIncludeDirective(), $node, $contextVariables); |
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| 164 | |||
| 165 | if ($include && $include['if'] === false) { |
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| 166 | return false; |
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| 167 | } |
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| 168 | |||
| 169 | return true; |
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| 170 | } |
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| 171 | |||
| 172 | /** |
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| 173 | * @param FragmentDefinitionNode|InlineFragmentNode $fragment |
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| 174 | * @param ObjectType $type |
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| 175 | * @return bool |
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| 176 | * @throws InvalidTypeException |
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| 177 | */ |
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| 178 | private function doesFragmentConditionMatch( |
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| 179 | NodeInterface $fragment, |
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| 180 | ObjectType $type |
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| 181 | ): bool { |
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| 182 | $typeConditionNode = $fragment->getTypeCondition(); |
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| 183 | |||
| 184 | if (!$typeConditionNode) { |
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| 185 | return true; |
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| 186 | } |
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| 187 | |||
| 188 | $conditionalType = typeFromAST($this->context->getSchema(), $typeConditionNode); |
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| 189 | |||
| 190 | if ($conditionalType === $type) { |
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| 191 | return true; |
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| 192 | } |
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| 193 | |||
| 194 | if ($conditionalType instanceof AbstractTypeInterface) { |
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| 195 | return $this->context->getSchema()->isPossibleType($conditionalType, $type); |
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| 196 | } |
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| 197 | |||
| 198 | return false; |
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| 199 | } |
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| 200 | |||
| 201 | /** |
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| 202 | * @TODO: consider to move this to FieldNode |
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| 203 | * @param FieldNode $node |
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| 204 | * @return string |
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| 205 | */ |
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| 206 | private function getFieldNameKey(FieldNode $node): string |
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| 207 | { |
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| 208 | return $node->getAlias() ? $node->getAlias()->getValue() : $node->getNameValue(); |
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| 209 | } |
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| 210 | |||
| 211 | /** |
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| 212 | * Implements the "Evaluating selection sets" section of the spec for "read" mode. |
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| 213 | * @param ObjectType $objectType |
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| 214 | * @param $rootValue |
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| 215 | * @param $path |
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| 216 | * @param $fields |
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| 217 | * @return array |
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| 218 | * @throws InvalidTypeException |
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| 219 | * @throws \Digia\GraphQL\Error\ExecutionException |
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| 220 | * @throws \Digia\GraphQL\Error\InvariantException |
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| 221 | * @throws \Throwable |
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| 222 | */ |
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| 223 | protected function executeFields( |
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| 224 | ObjectType $objectType, |
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| 225 | $rootValue, |
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| 226 | $path, |
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| 227 | $fields |
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| 228 | ): array { |
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| 229 | $finalResults = []; |
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| 230 | |||
| 231 | foreach ($fields as $fieldName => $fieldNodes) { |
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| 232 | $fieldPath = $path; |
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| 233 | $fieldPath[] = $fieldName; |
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| 234 | |||
| 235 | try { |
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| 236 | $result = $this->resolveField($objectType, $rootValue, $fieldNodes, $fieldPath); |
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| 237 | } catch (UndefinedFieldException $ex) { |
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| 238 | continue; |
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| 239 | } |
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| 240 | |||
| 241 | $finalResults[$fieldName] = $result; |
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| 242 | } |
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| 243 | |||
| 244 | return $finalResults; |
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| 245 | } |
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| 246 | |||
| 247 | /** |
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| 248 | * Implements the "Evaluating selection sets" section of the spec for "write" mode. |
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| 249 | * |
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| 250 | * @param ObjectType $objectType |
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| 251 | * @param $rootValue |
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| 252 | * @param $path |
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| 253 | * @param $fields |
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| 254 | * @return array |
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| 255 | * @throws InvalidTypeException |
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| 256 | * @throws \Digia\GraphQL\Error\ExecutionException |
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| 257 | * @throws \Digia\GraphQL\Error\InvariantException |
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| 258 | * @throws \Throwable |
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| 259 | */ |
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| 260 | public function executeFieldsSerially( |
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| 261 | ObjectType $objectType, |
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| 262 | $rootValue, |
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| 263 | $path, |
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| 264 | $fields |
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| 265 | ) { |
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| 266 | //@TODO execute fields serially |
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| 267 | $finalResults = []; |
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| 268 | |||
| 269 | foreach ($fields as $fieldName => $fieldNodes) { |
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| 270 | $fieldPath = $path; |
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| 271 | $fieldPath[] = $fieldName; |
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| 272 | |||
| 273 | try { |
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| 274 | $result = $this->resolveField($objectType, $rootValue, $fieldNodes, $fieldPath); |
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| 275 | } catch (UndefinedFieldException $ex) { |
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| 276 | continue; |
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| 277 | } |
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| 278 | |||
| 279 | $finalResults[$fieldName] = $result; |
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| 280 | } |
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| 281 | |||
| 282 | return $finalResults; |
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| 283 | } |
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| 284 | |||
| 285 | /** |
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| 286 | * @param Schema $schema |
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| 287 | * @param ObjectType $parentType |
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| 288 | * @param string $fieldName |
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| 289 | * @return \Digia\GraphQL\Type\Definition\Field|null |
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| 290 | * @throws InvalidTypeException |
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| 291 | */ |
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| 292 | public function getFieldDefinition( |
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| 293 | Schema $schema, |
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| 294 | ObjectType $parentType, |
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| 295 | string $fieldName |
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| 296 | ) { |
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| 297 | $schemaMetaFieldDefinition = SchemaMetaFieldDefinition(); |
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| 298 | $typeMetaFieldDefinition = TypeMetaFieldDefinition(); |
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| 299 | $typeNameMetaFieldDefinition = TypeNameMetaFieldDefinition(); |
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| 300 | |||
| 301 | if ($fieldName === $schemaMetaFieldDefinition->getName() && $schema->getQuery() === $parentType) { |
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| 302 | return $schemaMetaFieldDefinition; |
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| 303 | } |
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| 304 | |||
| 305 | if ($fieldName === $typeMetaFieldDefinition->getName() && $schema->getQuery() === $parentType) { |
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| 306 | return $typeMetaFieldDefinition; |
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| 307 | } |
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| 308 | |||
| 309 | if ($fieldName === $typeNameMetaFieldDefinition->getName()) { |
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| 310 | return $typeNameMetaFieldDefinition; |
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| 311 | } |
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| 312 | |||
| 313 | $fields = $parentType->getFields(); |
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| 314 | |||
| 315 | return $fields[$fieldName] ?? null; |
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| 316 | } |
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| 317 | |||
| 318 | |||
| 319 | /** |
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| 320 | * @param ObjectType $parentType |
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| 321 | * @param $rootValue |
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| 322 | * @param $fieldNodes |
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| 323 | * @param $path |
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| 324 | * @return array|null|\Throwable |
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| 325 | * @throws InvalidTypeException |
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| 326 | * @throws \Digia\GraphQL\Error\ExecutionException |
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| 327 | * @throws \Digia\GraphQL\Error\InvariantException |
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| 328 | * @throws \Throwable |
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| 329 | */ |
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| 330 | protected function resolveField( |
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| 331 | ObjectType $parentType, |
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| 332 | $rootValue, |
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| 333 | $fieldNodes, |
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| 334 | $path |
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| 335 | ) { |
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| 336 | /** @var FieldNode $fieldNode */ |
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| 337 | $fieldNode = $fieldNodes[0]; |
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| 338 | $fieldName = $fieldNode->getNameValue(); |
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| 339 | |||
| 340 | $field = $this->getFieldDefinition($this->context->getSchema(), $parentType, $fieldNode->getNameValue()); |
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| 341 | |||
| 342 | if (null === $field) { |
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| 343 | throw new UndefinedFieldException('Undefined field definition.'); |
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| 344 | } |
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| 345 | |||
| 346 | $info = $this->buildResolveInfo($fieldNodes, $fieldNode, $field, $parentType, $path, $this->context); |
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| 347 | |||
| 348 | $resolveFunction = $this->determineResolveFunction($field, $parentType, $this->context); |
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| 349 | |||
| 350 | $result = $this->resolveFieldValueOrError( |
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| 351 | $field, |
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| 352 | $fieldNode, |
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| 353 | $resolveFunction, |
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| 354 | $rootValue, |
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| 355 | $this->context, |
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| 356 | $info |
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| 357 | ); |
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| 358 | |||
| 359 | $result = $this->completeValueCatchingError( |
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| 360 | $field->getType(), |
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| 361 | $fieldNodes, |
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| 362 | $info, |
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| 363 | $path, |
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| 364 | $result// $result is passed as $source |
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| 365 | ); |
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| 366 | |||
| 367 | return $result; |
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| 368 | } |
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| 369 | |||
| 370 | /** |
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| 371 | * @param array $fieldNodes |
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| 372 | * @param FieldNode $fieldNode |
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| 373 | * @param Field $field |
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| 374 | * @param ObjectType $parentType |
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| 375 | * @param $path |
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| 376 | * @param ExecutionContext $context |
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| 377 | * @return ResolveInfo |
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| 378 | */ |
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| 379 | private function buildResolveInfo( |
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| 380 | array $fieldNodes, |
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| 381 | FieldNode $fieldNode, |
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| 382 | Field $field, |
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| 383 | ObjectType $parentType, |
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| 384 | $path, |
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| 385 | ExecutionContext $context |
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| 386 | ) { |
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| 387 | return new ResolveInfo([ |
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| 388 | 'fieldName' => $fieldNode->getNameValue(), |
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| 389 | 'fieldNodes' => $fieldNodes, |
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| 390 | 'returnType' => $field->getType(), |
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| 391 | 'parentType' => $parentType, |
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| 392 | 'path' => $path, |
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| 393 | 'schema' => $context->getSchema(), |
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| 394 | 'fragments' => $context->getFragments(), |
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| 395 | 'rootValue' => $context->getRootValue(), |
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| 396 | 'operation' => $context->getOperation(), |
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| 397 | 'variableValues' => $context->getVariableValues(), |
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| 398 | ]); |
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| 399 | } |
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| 400 | |||
| 401 | /** |
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| 402 | * @param Field $field |
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| 403 | * @param ObjectType $objectType |
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| 404 | * @param ExecutionContext $context |
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| 405 | * @return callable|mixed|null |
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| 406 | */ |
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| 407 | private function determineResolveFunction( |
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| 408 | Field $field, |
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| 409 | ObjectType $objectType, |
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| 410 | ExecutionContext $context |
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| 411 | ) { |
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| 412 | |||
| 413 | if ($field->hasResolve()) { |
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| 414 | return $field->getResolve(); |
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| 415 | } |
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| 416 | |||
| 417 | if ($objectType->hasResolve()) { |
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| 418 | return $objectType->getResolve(); |
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| 419 | } |
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| 420 | |||
| 421 | return $this->context->getFieldResolver() ?? self::$defaultFieldResolver; |
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| 422 | } |
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| 423 | |||
| 424 | /** |
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| 425 | * @param TypeInterface $fieldType |
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| 426 | * @param $fieldNodes |
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| 427 | * @param ResolveInfo $info |
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| 428 | * @param $path |
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| 429 | * @param $result |
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| 430 | * @return null |
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| 431 | * @throws \Throwable |
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| 432 | */ |
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| 433 | public function completeValueCatchingError( |
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| 434 | TypeInterface $fieldType, |
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| 435 | $fieldNodes, |
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| 436 | ResolveInfo $info, |
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| 437 | $path, |
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| 438 | &$result |
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| 439 | ) { |
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| 440 | if ($fieldType instanceof NonNullType) { |
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| 441 | return $this->completeValueWithLocatedError( |
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| 442 | $fieldType, |
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| 443 | $fieldNodes, |
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| 444 | $info, |
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| 445 | $path, |
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| 446 | $result |
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| 447 | ); |
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| 448 | } |
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| 449 | |||
| 450 | try { |
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| 451 | $completed = $this->completeValueWithLocatedError( |
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| 452 | $fieldType, |
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| 453 | $fieldNodes, |
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| 454 | $info, |
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| 455 | $path, |
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| 456 | $result |
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| 457 | ); |
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| 458 | |||
| 459 | return $completed; |
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| 460 | } catch (\Exception $ex) { |
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| 461 | $this->context->addError(new ExecutionException($ex->getMessage())); |
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| 462 | return null; |
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| 463 | } |
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| 464 | } |
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| 465 | |||
| 466 | /** |
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| 467 | * @param TypeInterface $fieldType |
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| 468 | * @param $fieldNodes |
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| 469 | * @param ResolveInfo $info |
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| 470 | * @param $path |
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| 471 | * @param $result |
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| 472 | * @throws \Throwable |
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| 473 | */ |
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| 474 | public function completeValueWithLocatedError( |
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| 475 | TypeInterface $fieldType, |
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| 476 | $fieldNodes, |
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| 477 | ResolveInfo $info, |
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| 478 | $path, |
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| 479 | $result |
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| 480 | ) { |
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| 481 | try { |
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| 482 | $completed = $this->completeValue( |
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| 483 | $fieldType, |
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| 484 | $fieldNodes, |
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| 485 | $info, |
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| 486 | $path, |
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| 487 | $result |
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| 488 | ); |
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| 489 | return $completed; |
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| 490 | } catch (\Exception $ex) { |
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| 491 | //@TODO throw located error |
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| 492 | throw $ex; |
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| 493 | } catch (\Throwable $ex) { |
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| 494 | //@TODO throw located error |
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| 495 | throw $ex; |
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| 496 | } |
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| 497 | } |
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| 498 | |||
| 499 | /** |
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| 500 | * @param TypeInterface $returnType |
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| 501 | * @param $fieldNodes |
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| 502 | * @param ResolveInfo $info |
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| 503 | * @param $path |
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| 504 | * @param $result |
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| 505 | * @return array|mixed |
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| 506 | * @throws ExecutionException |
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| 507 | * @throws \Throwable |
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| 508 | */ |
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| 509 | private function completeValue( |
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| 510 | TypeInterface $returnType, |
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| 511 | $fieldNodes, |
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| 512 | ResolveInfo $info, |
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| 513 | $path, |
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| 514 | &$result |
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| 515 | ) { |
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| 516 | if ($result instanceof \Throwable) { |
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| 517 | throw $result; |
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| 518 | } |
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| 519 | |||
| 520 | // If result is null-like, return null. |
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| 521 | if (null === $result) { |
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| 522 | return null; |
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| 523 | } |
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| 524 | |||
| 525 | if ($returnType instanceof NonNullType) { |
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| 526 | $completed = $this->completeValue( |
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| 527 | $returnType->getOfType(), |
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| 528 | $fieldNodes, |
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| 529 | $info, |
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| 530 | $path, |
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| 531 | $result |
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| 532 | ); |
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| 533 | |||
| 534 | if ($completed === null) { |
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| 535 | throw new ExecutionException( |
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| 536 | sprintf( |
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| 537 | 'Cannot return null for non-nullable field %s.%s.', |
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| 538 | $info->getParentType(), $info->getFieldName() |
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| 539 | ) |
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| 540 | ); |
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| 541 | } |
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| 542 | |||
| 543 | return $completed; |
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| 544 | } |
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| 545 | |||
| 546 | // If field type is List, complete each item in the list with the inner type |
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| 547 | if ($returnType instanceof ListType) { |
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| 548 | return $this->completeListValue($returnType, $fieldNodes, $info, $path, $result); |
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| 549 | } |
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| 550 | |||
| 551 | |||
| 552 | // If field type is Scalar or Enum, serialize to a valid value, returning |
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| 553 | // null if serialization is not possible. |
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| 554 | if ($returnType instanceof LeafTypeInterface) { |
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| 555 | return $this->completeLeafValue($returnType, $result); |
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| 556 | } |
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| 557 | |||
| 558 | //@TODO Make a function for checking abstract type? |
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| 559 | if ($returnType instanceof InterfaceType || $returnType instanceof UnionType) { |
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| 560 | return $this->completeAbstractValue($returnType, $fieldNodes, $info, $path, $result); |
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| 561 | } |
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| 562 | |||
| 563 | // Field type must be Object, Interface or Union and expect sub-selections. |
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| 564 | if ($returnType instanceof ObjectType) { |
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| 565 | return $this->completeObjectValue($returnType, $fieldNodes, $info, $path, $result); |
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| 566 | } |
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| 567 | |||
| 568 | throw new ExecutionException("Cannot complete value of unexpected type \"{$returnType}\"."); |
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| 569 | } |
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| 570 | |||
| 571 | /** |
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| 572 | * @param AbstractTypeInterface $returnType |
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| 573 | * @param $fieldNodes |
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| 574 | * @param ResolveInfo $info |
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| 575 | * @param $path |
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| 576 | * @param $result |
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| 577 | * @return array |
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| 578 | * @throws ExecutionException |
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| 579 | * @throws InvalidTypeException |
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| 580 | * @throws \Digia\GraphQL\Error\InvariantException |
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| 581 | * @throws \Throwable |
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| 582 | */ |
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| 583 | private function completeAbstractValue( |
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| 584 | AbstractTypeInterface $returnType, |
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| 585 | $fieldNodes, |
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| 586 | ResolveInfo $info, |
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| 587 | $path, |
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| 588 | &$result |
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| 589 | ) { |
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| 590 | $runtimeType = $returnType->resolveType($result, $this->context->getContextValue(), $info); |
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| 591 | |||
| 592 | if (null === $runtimeType) { |
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| 593 | //@TODO Show warning |
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| 594 | $runtimeType = $this->defaultTypeResolver($result, $this->context->getContextValue(), $info, $returnType); |
||
| 595 | } |
||
| 596 | |||
| 597 | $runtimeType = $this->ensureValidRuntimeType( |
||
| 598 | $runtimeType, |
||
| 599 | $returnType, |
||
| 600 | $fieldNodes, |
||
| 601 | $info, |
||
| 602 | $result |
||
| 603 | ); |
||
| 604 | |||
| 605 | return $this->completeObjectValue( |
||
| 606 | $runtimeType, |
||
| 607 | $fieldNodes, |
||
| 608 | $info, |
||
| 609 | $path, |
||
| 610 | $result |
||
| 611 | ); |
||
| 612 | } |
||
| 613 | |||
| 614 | /** |
||
| 615 | * @param $runtimeTypeOrName |
||
| 616 | * @param AbstractTypeInterface $returnType |
||
| 617 | * @param $fieldNodes |
||
| 618 | * @param ResolveInfo $info |
||
| 619 | * @param $result |
||
| 620 | * @return TypeInterface|null |
||
| 621 | * @throws ExecutionException |
||
| 622 | */ |
||
| 623 | private function ensureValidRuntimeType( |
||
| 624 | $runtimeTypeOrName, |
||
| 625 | AbstractTypeInterface $returnType, |
||
| 626 | $fieldNodes, |
||
| 627 | ResolveInfo $info, |
||
| 628 | &$result |
||
| 629 | ) { |
||
| 630 | $runtimeType = is_string($runtimeTypeOrName) |
||
| 631 | ? $this->context->getSchema()->getType($runtimeTypeOrName) |
||
| 632 | : $runtimeTypeOrName; |
||
| 633 | |||
| 634 | $runtimeTypeName = is_string($runtimeType) ?: $runtimeType->getName(); |
||
| 635 | $returnTypeName = $returnType->getName(); |
||
| 636 | |||
| 637 | if (!$runtimeType instanceof ObjectType) { |
||
| 638 | $parentTypeName = $info->getParentType()->getName(); |
||
| 639 | $fieldName = $info->getFieldName(); |
||
| 640 | |||
| 641 | throw new ExecutionException( |
||
| 642 | "Abstract type {$returnTypeName} must resolve to an Object type at runtime " . |
||
| 643 | "for field {$parentTypeName}.{$fieldName} with " . |
||
| 644 | 'value "' . $result . '", received "{$runtimeTypeName}".' |
||
| 645 | ); |
||
| 646 | } |
||
| 647 | |||
| 648 | if (!$this->context->getSchema()->isPossibleType($returnType, $runtimeType)) { |
||
| 649 | throw new ExecutionException( |
||
| 650 | "Runtime Object type \"{$runtimeTypeName}\" is not a possible type for \"{$returnTypeName}\"." |
||
| 651 | ); |
||
| 652 | } |
||
| 653 | |||
| 654 | if ($runtimeType !== $this->context->getSchema()->getType($runtimeType->getName())) { |
||
| 655 | throw new ExecutionException( |
||
| 656 | "Schema must contain unique named types but contains multiple types named \"{$runtimeTypeName}\". " . |
||
| 657 | "Make sure that `resolveType` function of abstract type \"{$returnTypeName}\" returns the same " . |
||
| 658 | "type instance as referenced anywhere else within the schema." |
||
| 659 | ); |
||
| 660 | } |
||
| 661 | |||
| 662 | return $runtimeType; |
||
| 663 | } |
||
| 664 | |||
| 665 | /** |
||
| 666 | * @param $value |
||
| 667 | * @param $context |
||
| 668 | * @param ResolveInfo $info |
||
| 669 | * @param AbstractTypeInterface $abstractType |
||
| 670 | * @return TypeInterface|null |
||
| 671 | */ |
||
| 672 | private function defaultTypeResolver($value, $context, ResolveInfo $info, AbstractTypeInterface $abstractType) |
||
| 673 | { |
||
| 674 | $possibleTypes = $info->getSchema()->getPossibleTypes($abstractType); |
||
| 675 | |||
| 676 | foreach ($possibleTypes as $type) { |
||
| 677 | $isTypeOfResult = $type->isTypeOf($value, $context, $info); |
||
| 678 | |||
| 679 | if (null !== $isTypeOfResult) { |
||
| 680 | if ($isTypeOfResult) { |
||
| 681 | return $type; |
||
| 682 | } |
||
| 683 | } |
||
| 684 | } |
||
| 685 | |||
| 686 | return null; |
||
| 687 | } |
||
| 688 | |||
| 689 | /** |
||
| 690 | * @param ListType $returnType |
||
| 691 | * @param $fieldNodes |
||
| 692 | * @param ResolveInfo $info |
||
| 693 | * @param $path |
||
| 694 | * @param $result |
||
| 695 | * @return array |
||
| 696 | * @throws \Throwable |
||
| 697 | */ |
||
| 698 | private function completeListValue( |
||
| 699 | ListType $returnType, |
||
| 700 | $fieldNodes, |
||
| 701 | ResolveInfo $info, |
||
| 702 | $path, |
||
| 703 | &$result |
||
| 704 | ) { |
||
| 705 | $itemType = $returnType->getOfType(); |
||
| 706 | |||
| 707 | $completedItems = []; |
||
| 708 | |||
| 709 | foreach ($result as $key => $item) { |
||
| 710 | $fieldPath = $path; |
||
| 711 | $fieldPath[] = $key; |
||
| 712 | $completedItem = $this->completeValueCatchingError($itemType, $fieldNodes, $info, $fieldPath, $item); |
||
| 713 | $completedItems[] = $completedItem; |
||
| 714 | } |
||
| 715 | |||
| 716 | return $completedItems; |
||
| 717 | } |
||
| 718 | |||
| 719 | /** |
||
| 720 | * @param LeafTypeInterface $returnType |
||
| 721 | * @param $result |
||
| 722 | * @return mixed |
||
| 723 | * @throws ExecutionException |
||
| 724 | */ |
||
| 725 | private function completeLeafValue(LeafTypeInterface $returnType, &$result) |
||
| 726 | { |
||
| 727 | $serializedResult = $returnType->serialize($result); |
||
| 728 | |||
| 729 | if ($serializedResult === null) { |
||
| 730 | throw new ExecutionException( |
||
| 731 | sprintf('Expected a value of type "%s" but received: %s', toString($returnType), toString($result)) |
||
| 732 | ); |
||
| 733 | } |
||
| 734 | |||
| 735 | return $serializedResult; |
||
| 736 | } |
||
| 737 | |||
| 738 | /** |
||
| 739 | * @param ObjectType $returnType |
||
| 740 | * @param $fieldNodes |
||
| 741 | * @param ResolveInfo $info |
||
| 742 | * @param $path |
||
| 743 | * @param $result |
||
| 744 | * @return array |
||
| 745 | * @throws ExecutionException |
||
| 746 | * @throws InvalidTypeException |
||
| 747 | * @throws \Digia\GraphQL\Error\InvariantException |
||
| 748 | * @throws \Throwable |
||
| 749 | */ |
||
| 750 | private function completeObjectValue( |
||
| 751 | ObjectType $returnType, |
||
| 752 | $fieldNodes, |
||
| 753 | ResolveInfo $info, |
||
| 754 | $path, |
||
| 755 | &$result |
||
| 756 | ) { |
||
| 757 | return $this->collectAndExecuteSubFields( |
||
| 758 | $returnType, |
||
| 759 | $fieldNodes, |
||
| 760 | $info, |
||
| 761 | $path, |
||
| 762 | $result |
||
| 763 | ); |
||
| 764 | } |
||
| 765 | |||
| 766 | /** |
||
| 767 | * @param Field $field |
||
| 768 | * @param FieldNode $fieldNode |
||
| 769 | * @param callable $resolveFunction |
||
| 770 | * @param $rootValue |
||
| 771 | * @param ExecutionContext $context |
||
| 772 | * @param ResolveInfo $info |
||
| 773 | * @return array|\Throwable |
||
| 774 | */ |
||
| 775 | private function resolveFieldValueOrError( |
||
| 776 | Field $field, |
||
| 777 | FieldNode $fieldNode, |
||
| 778 | ?callable $resolveFunction, |
||
| 779 | $rootValue, |
||
| 780 | ExecutionContext $context, |
||
| 781 | ResolveInfo $info |
||
| 782 | ) { |
||
| 783 | try { |
||
| 784 | $args = $this->valuesResolver->coerceArgumentValues($field, $fieldNode, $context->getVariableValues()); |
||
| 785 | |||
| 786 | return $resolveFunction($rootValue, $args, $context->getContextValue(), $info); |
||
| 787 | } catch (\Throwable $error) { |
||
| 788 | return $error; |
||
| 789 | } |
||
| 790 | } |
||
| 791 | |||
| 792 | /** |
||
| 793 | * Try to resolve a field without any field resolver function. |
||
| 794 | * |
||
| 795 | * @param array|object $rootValue |
||
| 796 | * @param $args |
||
| 797 | * @param $context |
||
| 798 | * @param ResolveInfo $info |
||
| 799 | * @return mixed|null |
||
| 800 | */ |
||
| 801 | public static function defaultFieldResolver($rootValue, $args, $context, ResolveInfo $info) |
||
| 802 | { |
||
| 803 | $fieldName = $info->getFieldName(); |
||
| 804 | $property = null; |
||
| 805 | |||
| 806 | if (is_array($rootValue) && isset($rootValue[$fieldName])) { |
||
| 807 | $property = $rootValue[$fieldName]; |
||
| 808 | } |
||
| 809 | |||
| 810 | if (is_object($rootValue)) { |
||
| 811 | $getter = 'get' . ucfirst($fieldName); |
||
| 812 | if (method_exists($rootValue, $getter)) { |
||
| 813 | $property = $rootValue->{$getter}(); |
||
| 814 | } else { |
||
| 815 | if (property_exists($rootValue, $fieldName)) { |
||
| 816 | $property = $rootValue->{$fieldName}; |
||
| 817 | } |
||
| 818 | } |
||
| 819 | } |
||
| 820 | |||
| 821 | |||
| 822 | return $property instanceof \Closure ? $property($rootValue, $args, $context, $info) : $property; |
||
| 823 | } |
||
| 824 | |||
| 825 | /** |
||
| 826 | * @param ObjectType $returnType |
||
| 827 | * @param $fieldNodes |
||
| 828 | * @param ResolveInfo $info |
||
| 829 | * @param $path |
||
| 830 | * @param $result |
||
| 831 | * @return array |
||
| 832 | * @throws InvalidTypeException |
||
| 833 | * @throws \Digia\GraphQL\Error\ExecutionException |
||
| 834 | * @throws \Digia\GraphQL\Error\InvariantException |
||
| 835 | * @throws \Throwable |
||
| 836 | */ |
||
| 837 | private function collectAndExecuteSubFields( |
||
| 864 | } |
||
| 865 | } |
||
| 866 |
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.