digiaonline /
graphql-php
| Total Complexity | 85 |
| Total Lines | 841 |
| 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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| 35 | abstract class ExecutionStrategy |
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| 36 | { |
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| 37 | /** |
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| 38 | * @var ExecutionContext |
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| 39 | */ |
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| 40 | protected $context; |
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| 41 | |||
| 42 | /** |
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| 43 | * @var OperationDefinitionNode |
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| 44 | */ |
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| 45 | protected $operation; |
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| 46 | |||
| 47 | /** |
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| 48 | * @var mixed |
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| 49 | */ |
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| 50 | protected $rootValue; |
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| 51 | |||
| 52 | |||
| 53 | /** |
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| 54 | * @var ValuesResolver |
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| 55 | */ |
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| 56 | protected $valuesResolver; |
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| 57 | |||
| 58 | /** |
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| 59 | * @var array |
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| 60 | */ |
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| 61 | protected $finalResult; |
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| 62 | |||
| 63 | /** |
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| 64 | * @var array |
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| 65 | */ |
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| 66 | protected static $defaultFieldResolver = [__CLASS__, 'defaultFieldResolver']; |
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| 67 | |||
| 68 | |||
| 69 | private const UNDEFINED = '__undefined__'; |
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| 70 | |||
| 71 | /** |
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| 72 | * AbstractStrategy constructor. |
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| 73 | * @param ExecutionContext $context |
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| 74 | * |
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| 75 | * @param OperationDefinitionNode $operation |
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| 76 | */ |
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| 77 | public function __construct( |
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| 78 | ExecutionContext $context, |
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| 79 | OperationDefinitionNode $operation, |
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| 80 | $rootValue |
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| 81 | ) { |
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| 82 | $this->context = $context; |
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| 83 | $this->operation = $operation; |
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| 84 | $this->rootValue = $rootValue; |
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| 85 | $this->valuesResolver = new ValuesResolver(); |
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| 86 | } |
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| 87 | |||
| 88 | /** |
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| 89 | * @return array|null |
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| 90 | */ |
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| 91 | abstract function execute(): ?array; |
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| 92 | |||
| 93 | /** |
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| 94 | * @param ObjectType $runtimeType |
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| 95 | * @param SelectionSetNode $selectionSet |
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| 96 | * @param $fields |
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| 97 | * @param $visitedFragmentNames |
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| 98 | * @return mixed |
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| 99 | * @throws InvalidTypeException |
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| 100 | * @throws \Digia\GraphQL\Error\ExecutionException |
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| 101 | * @throws \Digia\GraphQL\Error\InvariantException |
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| 102 | */ |
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| 103 | protected function collectFields( |
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| 104 | ObjectType $runtimeType, |
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| 105 | SelectionSetNode $selectionSet, |
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| 106 | &$fields, |
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| 107 | &$visitedFragmentNames |
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| 108 | ) { |
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| 109 | foreach ($selectionSet->getSelections() as $selection) { |
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| 110 | // Check if this Node should be included first |
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| 111 | if (!$this->shouldIncludeNode($selection)) { |
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| 112 | continue; |
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| 113 | } |
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| 114 | // Collect fields |
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| 115 | if ($selection instanceof FieldNode) { |
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| 116 | $fieldName = $this->getFieldNameKey($selection); |
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| 117 | |||
| 118 | if (!isset($fields[$fieldName])) { |
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| 119 | $fields[$fieldName] = []; |
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| 120 | } |
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| 121 | |||
| 122 | $fields[$fieldName][] = $selection; |
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| 123 | } elseif ($selection instanceof InlineFragmentNode) { |
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| 124 | if (!$this->doesFragmentConditionMatch($selection, $runtimeType)) { |
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| 125 | continue; |
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| 126 | } |
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| 127 | |||
| 128 | $this->collectFields($runtimeType, $selection->getSelectionSet(), $fields, $visitedFragmentNames); |
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| 129 | } elseif ($selection instanceof FragmentSpreadNode) { |
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| 130 | $fragmentName = $selection->getNameValue(); |
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| 131 | |||
| 132 | if (!empty($visitedFragmentNames[$fragmentName])) { |
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| 133 | continue; |
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| 134 | } |
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| 135 | |||
| 136 | $visitedFragmentNames[$fragmentName] = true; |
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| 137 | /** @var FragmentDefinitionNode $fragment */ |
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| 138 | $fragment = $this->context->getFragments()[$fragmentName]; |
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| 139 | $this->collectFields($runtimeType, $fragment->getSelectionSet(), $fields, $visitedFragmentNames); |
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| 140 | } |
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| 141 | } |
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| 142 | |||
| 143 | return $fields; |
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| 144 | } |
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| 145 | |||
| 146 | |||
| 147 | /** |
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| 148 | * @param $node |
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| 149 | * @return bool |
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| 150 | * @throws InvalidTypeException |
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| 151 | * @throws \Digia\GraphQL\Error\ExecutionException |
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| 152 | * @throws \Digia\GraphQL\Error\InvariantException |
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| 153 | */ |
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| 154 | private function shouldIncludeNode(NodeInterface $node): bool |
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| 155 | { |
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| 156 | |||
| 157 | $contextVariables = $this->context->getVariableValues(); |
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| 158 | |||
| 159 | $skip = $this->valuesResolver->getDirectiveValues(GraphQLSkipDirective(), $node, $contextVariables); |
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| 160 | |||
| 161 | if ($skip && $skip['if'] === true) { |
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| 162 | return false; |
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| 163 | } |
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| 164 | |||
| 165 | $include = $this->valuesResolver->getDirectiveValues(GraphQLIncludeDirective(), $node, $contextVariables); |
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| 166 | |||
| 167 | if ($include && $include['if'] === false) { |
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| 168 | return false; |
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| 169 | } |
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| 170 | |||
| 171 | return true; |
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| 172 | } |
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| 173 | |||
| 174 | /** |
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| 175 | * @param FragmentDefinitionNode|InlineFragmentNode $fragment |
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| 176 | * @param ObjectType $type |
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| 177 | * @return bool |
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| 178 | * @throws InvalidTypeException |
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| 179 | */ |
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| 180 | private function doesFragmentConditionMatch( |
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| 181 | NodeInterface $fragment, |
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| 182 | ObjectType $type |
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| 183 | ): bool { |
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| 184 | $typeConditionNode = $fragment->getTypeCondition(); |
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| 185 | |||
| 186 | if (!$typeConditionNode) { |
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| 187 | return true; |
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| 188 | } |
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| 189 | |||
| 190 | $conditionalType = typeFromAST($this->context->getSchema(), $typeConditionNode); |
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| 191 | |||
| 192 | if ($conditionalType === $type) { |
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| 193 | return true; |
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| 194 | } |
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| 195 | |||
| 196 | if ($conditionalType instanceof AbstractTypeInterface) { |
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| 197 | return $this->context->getSchema()->isPossibleType($conditionalType, $type); |
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| 198 | } |
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| 199 | |||
| 200 | return false; |
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| 201 | } |
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| 202 | |||
| 203 | /** |
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| 204 | * @TODO: consider to move this to FieldNode |
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| 205 | * @param FieldNode $node |
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| 206 | * @return string |
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| 207 | */ |
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| 208 | private function getFieldNameKey(FieldNode $node): string |
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| 211 | } |
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| 212 | |||
| 213 | /** |
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| 214 | * Implements the "Evaluating selection sets" section of the spec for "read" mode. |
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| 215 | * @param ObjectType $objectType |
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| 216 | * @param $rootValue |
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| 217 | * @param $path |
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| 218 | * @param $fields |
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| 219 | * @return array |
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| 220 | * @throws InvalidTypeException |
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| 221 | * @throws \Digia\GraphQL\Error\ExecutionException |
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| 222 | * @throws \Digia\GraphQL\Error\InvariantException |
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| 223 | * @throws \Throwable |
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| 224 | */ |
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| 225 | protected function executeFields( |
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| 226 | ObjectType $objectType, |
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| 227 | $rootValue, |
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| 228 | $path, |
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| 229 | $fields |
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| 230 | ): array { |
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| 231 | $finalResults = []; |
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| 232 | |||
| 233 | foreach ($fields as $fieldName => $fieldNodes) { |
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| 234 | $fieldPath = $path; |
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| 235 | $fieldPath[] = $fieldName; |
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| 236 | |||
| 237 | $result = $this->resolveField( |
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| 238 | $objectType, |
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| 239 | $rootValue, |
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| 240 | $fieldNodes, |
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| 241 | $fieldPath |
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| 242 | ); |
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| 243 | |||
| 244 | // does not include illegal fields in output |
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| 245 | if ($result === self::UNDEFINED) { |
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| 246 | continue; |
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| 247 | } |
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| 248 | |||
| 249 | $finalResults[$fieldName] = $result; |
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| 250 | } |
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| 251 | |||
| 252 | return $finalResults; |
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| 253 | } |
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| 254 | |||
| 255 | /** |
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| 256 | * Implements the "Evaluating selection sets" section of the spec for "write" mode. |
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| 257 | * |
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| 258 | * @param ObjectType $objectType |
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| 259 | * @param $rootValue |
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| 260 | * @param $path |
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| 261 | * @param $fields |
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| 262 | * @return array |
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| 263 | * @throws InvalidTypeException |
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| 264 | * @throws \Digia\GraphQL\Error\ExecutionException |
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| 265 | * @throws \Digia\GraphQL\Error\InvariantException |
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| 266 | * @throws \Throwable |
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| 267 | */ |
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| 268 | public function executeFieldsSerially( |
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| 269 | ObjectType $objectType, |
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| 270 | $rootValue, |
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| 271 | $path, |
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| 272 | $fields |
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| 273 | ) { |
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| 274 | //@TODO execute fields serially |
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| 275 | $finalResults = []; |
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| 276 | |||
| 277 | foreach ($fields as $fieldName => $fieldNodes) { |
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| 278 | $fieldPath = $path; |
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| 279 | $fieldPath[] = $fieldName; |
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| 280 | |||
| 281 | $result = $this->resolveField( |
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| 282 | $objectType, |
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| 283 | $rootValue, |
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| 284 | $fieldNodes, |
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| 285 | $fieldPath |
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| 286 | ); |
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| 287 | |||
| 288 | // does not include illegal fields in output |
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| 289 | if ($result === self::UNDEFINED) { |
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| 290 | continue; |
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| 291 | } |
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| 292 | |||
| 293 | $finalResults[$fieldName] = $result; |
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| 294 | } |
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| 295 | |||
| 296 | return $finalResults; |
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| 297 | } |
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| 298 | |||
| 299 | /** |
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| 300 | * @param Schema $schema |
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| 301 | * @param ObjectType $parentType |
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| 302 | * @param string $fieldName |
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| 303 | * @return \Digia\GraphQL\Type\Definition\Field|null |
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| 304 | * @throws InvalidTypeException |
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| 305 | */ |
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| 306 | public function getFieldDefinition( |
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| 307 | Schema $schema, |
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| 308 | ObjectType $parentType, |
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| 309 | string $fieldName |
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| 310 | ) { |
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| 311 | $schemaMetaFieldDefinition = SchemaMetaFieldDefinition(); |
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| 312 | $typeMetaFieldDefinition = TypeMetaFieldDefinition(); |
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| 313 | $typeNameMetaFieldDefinition = TypeNameMetaFieldDefinition(); |
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| 314 | |||
| 315 | if ($fieldName === $schemaMetaFieldDefinition->getName() && $schema->getQuery() === $parentType) { |
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| 316 | return $schemaMetaFieldDefinition; |
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| 317 | } |
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| 318 | |||
| 319 | if ($fieldName === $typeMetaFieldDefinition->getName() && $schema->getQuery() === $parentType) { |
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| 320 | return $typeMetaFieldDefinition; |
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| 321 | } |
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| 322 | |||
| 323 | if ($fieldName === $typeNameMetaFieldDefinition->getName()) { |
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| 324 | return $typeNameMetaFieldDefinition; |
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| 325 | } |
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| 326 | |||
| 327 | $fields = $parentType->getFields(); |
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| 328 | |||
| 329 | return $fields[$fieldName] ?? null; |
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| 330 | } |
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| 331 | |||
| 332 | |||
| 333 | /** |
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| 334 | * @param ObjectType $parentType |
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| 335 | * @param $rootValue |
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| 336 | * @param $fieldNodes |
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| 337 | * @param $path |
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| 338 | * @return array|null|string|\Throwable |
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| 339 | * @throws InvalidTypeException |
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| 340 | * @throws \Digia\GraphQL\Error\ExecutionException |
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| 341 | * @throws \Digia\GraphQL\Error\InvariantException |
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| 342 | * @throws \Throwable |
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| 343 | */ |
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| 344 | protected function resolveField( |
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| 345 | ObjectType $parentType, |
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| 346 | $rootValue, |
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| 347 | $fieldNodes, |
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| 348 | $path |
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| 349 | ) { |
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| 350 | /** @var FieldNode $fieldNode */ |
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| 351 | $fieldNode = $fieldNodes[0]; |
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| 352 | $fieldName = $fieldNode->getNameValue(); |
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| 353 | |||
| 354 | $field = $this->getFieldDefinition($this->context->getSchema(), $parentType, $fieldNode->getNameValue()); |
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| 355 | |||
| 356 | if (!$field) { |
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| 357 | return self::UNDEFINED; |
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| 358 | } |
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| 359 | |||
| 360 | $info = $this->buildResolveInfo($fieldNodes, $fieldNode, $field, $parentType, $path, $this->context); |
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| 361 | |||
| 362 | $resolveFunction = $this->determineResolveFunction($field, $parentType, $this->context); |
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| 363 | |||
| 364 | $result = $this->resolveFieldValueOrError( |
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| 365 | $field, |
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| 366 | $fieldNode, |
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| 367 | $resolveFunction, |
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| 368 | $rootValue, |
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| 369 | $this->context, |
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| 370 | $info |
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| 371 | ); |
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| 372 | |||
| 373 | $result = $this->completeValueCatchingError( |
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| 374 | $field->getType(), |
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| 375 | $fieldNodes, |
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| 376 | $info, |
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| 377 | $path, |
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| 378 | $result// $result is passed as $source |
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| 379 | ); |
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| 380 | |||
| 381 | return $result; |
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| 382 | } |
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| 383 | |||
| 384 | /** |
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| 385 | * @param array $fieldNodes |
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| 386 | * @param FieldNode $fieldNode |
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| 387 | * @param Field $field |
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| 388 | * @param ObjectType $parentType |
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| 389 | * @param $path |
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| 390 | * @param ExecutionContext $context |
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| 391 | * @return ResolveInfo |
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| 392 | */ |
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| 393 | private function buildResolveInfo( |
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| 394 | array $fieldNodes, |
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| 395 | FieldNode $fieldNode, |
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| 396 | Field $field, |
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| 397 | ObjectType $parentType, |
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| 398 | $path, |
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| 399 | ExecutionContext $context |
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| 400 | ) { |
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| 401 | return new ResolveInfo([ |
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| 402 | 'fieldName' => $fieldNode->getNameValue(), |
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| 403 | 'fieldNodes' => $fieldNodes, |
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| 404 | 'returnType' => $field->getType(), |
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| 405 | 'parentType' => $parentType, |
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| 406 | 'path' => $path, |
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| 407 | 'schema' => $context->getSchema(), |
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| 408 | 'fragments' => $context->getFragments(), |
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| 409 | 'rootValue' => $context->getRootValue(), |
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| 410 | 'operation' => $context->getOperation(), |
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| 411 | 'variableValues' => $context->getVariableValues(), |
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| 412 | ]); |
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| 413 | } |
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| 414 | |||
| 415 | /** |
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| 416 | * @param Field $field |
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| 417 | * @param ObjectType $objectType |
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| 418 | * @param ExecutionContext $context |
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| 419 | * @return callable|mixed|null |
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| 420 | */ |
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| 421 | private function determineResolveFunction( |
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| 422 | Field $field, |
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| 423 | ObjectType $objectType, |
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| 424 | ExecutionContext $context |
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| 425 | ) { |
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| 426 | |||
| 427 | if ($field->hasResolve()) { |
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| 428 | return $field->getResolve(); |
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| 429 | } |
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| 430 | |||
| 431 | if ($objectType->hasResolve()) { |
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| 432 | return $objectType->getResolve(); |
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| 433 | } |
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| 434 | |||
| 435 | return $this->context->getFieldResolver() ?? self::$defaultFieldResolver; |
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| 436 | } |
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| 437 | |||
| 438 | /** |
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| 439 | * @param TypeInterface $fieldType |
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| 440 | * @param $fieldNodes |
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| 441 | * @param ResolveInfo $info |
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| 442 | * @param $path |
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| 443 | * @param $result |
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| 444 | * @return null |
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| 445 | * @throws \Throwable |
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| 446 | */ |
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| 447 | public function completeValueCatchingError( |
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| 448 | TypeInterface $fieldType, |
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| 449 | $fieldNodes, |
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| 450 | ResolveInfo $info, |
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| 451 | $path, |
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| 452 | &$result |
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| 453 | ) { |
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| 454 | if ($fieldType instanceof NonNullType) { |
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| 455 | return $this->completeValueWithLocatedError( |
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| 456 | $fieldType, |
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| 457 | $fieldNodes, |
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| 458 | $info, |
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| 459 | $path, |
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| 460 | $result |
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| 461 | ); |
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| 462 | } |
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| 463 | |||
| 464 | try { |
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| 465 | $completed = $this->completeValueWithLocatedError( |
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| 466 | $fieldType, |
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| 467 | $fieldNodes, |
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| 468 | $info, |
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| 469 | $path, |
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| 470 | $result |
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| 471 | ); |
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| 472 | |||
| 473 | return $completed; |
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| 474 | } catch (\Exception $ex) { |
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| 475 | $this->context->addError(new ExecutionException($ex->getMessage())); |
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| 476 | return null; |
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| 477 | } |
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| 478 | } |
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| 479 | |||
| 480 | /** |
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| 481 | * @param TypeInterface $fieldType |
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| 482 | * @param $fieldNodes |
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| 483 | * @param ResolveInfo $info |
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| 484 | * @param $path |
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| 485 | * @param $result |
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| 486 | * @throws \Throwable |
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| 487 | */ |
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| 488 | public function completeValueWithLocatedError( |
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| 489 | TypeInterface $fieldType, |
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| 490 | $fieldNodes, |
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| 491 | ResolveInfo $info, |
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| 492 | $path, |
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| 493 | $result |
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| 494 | ) { |
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| 495 | try { |
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| 496 | $completed = $this->completeValue( |
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| 497 | $fieldType, |
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| 498 | $fieldNodes, |
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| 499 | $info, |
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| 500 | $path, |
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| 501 | $result |
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| 502 | ); |
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| 503 | return $completed; |
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| 504 | } catch (\Exception $ex) { |
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| 505 | //@TODO throw located error |
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| 506 | throw $ex; |
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| 507 | } catch (\Throwable $ex) { |
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| 508 | //@TODO throw located error |
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| 509 | throw $ex; |
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| 510 | } |
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| 511 | } |
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| 512 | |||
| 513 | /** |
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| 514 | * @param TypeInterface $returnType |
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| 515 | * @param $fieldNodes |
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| 516 | * @param ResolveInfo $info |
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| 517 | * @param $path |
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| 518 | * @param $result |
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| 519 | * @return array|mixed |
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| 520 | * @throws ExecutionException |
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| 521 | * @throws \Throwable |
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| 522 | */ |
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| 523 | private function completeValue( |
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| 524 | TypeInterface $returnType, |
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| 525 | $fieldNodes, |
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| 526 | ResolveInfo $info, |
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| 527 | $path, |
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| 528 | &$result |
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| 529 | ) { |
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| 530 | if ($result instanceof \Throwable) { |
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| 531 | throw $result; |
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| 532 | } |
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| 533 | |||
| 534 | // If result is null-like, return null. |
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| 535 | if (null === $result) { |
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| 536 | return null; |
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| 537 | } |
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| 538 | |||
| 539 | if ($returnType instanceof NonNullType) { |
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| 540 | $completed = $this->completeValue( |
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| 541 | $returnType->getOfType(), |
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| 542 | $fieldNodes, |
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| 543 | $info, |
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| 544 | $path, |
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| 545 | $result |
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| 546 | ); |
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| 547 | |||
| 548 | if ($completed === null) { |
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| 549 | throw new ExecutionException( |
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| 550 | sprintf( |
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| 551 | 'Cannot return null for non-nullable field %s.%s.', |
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| 552 | $info->getParentType(), $info->getFieldName() |
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| 553 | ) |
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| 554 | ); |
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| 555 | } |
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| 556 | |||
| 557 | return $completed; |
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| 558 | } |
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| 559 | |||
| 560 | // If field type is List, complete each item in the list with the inner type |
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| 561 | if ($returnType instanceof ListType) { |
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| 562 | return $this->completeListValue($returnType, $fieldNodes, $info, $path, $result); |
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| 563 | } |
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| 564 | |||
| 565 | |||
| 566 | // If field type is Scalar or Enum, serialize to a valid value, returning |
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| 567 | // null if serialization is not possible. |
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| 568 | if ($returnType instanceof LeafTypeInterface) { |
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| 569 | return $this->completeLeafValue($returnType, $result); |
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| 570 | } |
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| 571 | |||
| 572 | //@TODO Make a function for checking abstract type? |
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| 573 | if ($returnType instanceof InterfaceType || $returnType instanceof UnionType) { |
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| 574 | return $this->completeAbstractValue($returnType, $fieldNodes, $info, $path, $result); |
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| 575 | } |
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| 576 | |||
| 577 | // Field type must be Object, Interface or Union and expect sub-selections. |
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| 578 | if ($returnType instanceof ObjectType) { |
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| 579 | return $this->completeObjectValue($returnType, $fieldNodes, $info, $path, $result); |
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| 580 | } |
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| 581 | |||
| 582 | throw new ExecutionException("Cannot complete value of unexpected type \"{$returnType}\"."); |
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| 583 | } |
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| 584 | |||
| 585 | /** |
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| 586 | * @param AbstractTypeInterface $returnType |
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| 587 | * @param $fieldNodes |
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| 588 | * @param ResolveInfo $info |
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| 589 | * @param $path |
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| 590 | * @param $result |
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| 591 | * @return array |
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| 592 | * @throws ExecutionException |
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| 593 | * @throws InvalidTypeException |
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| 594 | * @throws \Digia\GraphQL\Error\InvariantException |
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| 595 | * @throws \Throwable |
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| 596 | */ |
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| 597 | private function completeAbstractValue( |
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| 598 | AbstractTypeInterface $returnType, |
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| 599 | $fieldNodes, |
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| 600 | ResolveInfo $info, |
||
| 601 | $path, |
||
| 602 | &$result |
||
| 603 | ) { |
||
| 604 | $runtimeType = $returnType->resolveType($result, $this->context->getContextValue(), $info); |
||
| 605 | |||
| 606 | if (null === $runtimeType) { |
||
| 607 | //@TODO Show warning |
||
| 608 | $runtimeType = $this->defaultTypeResolver($result, $this->context->getContextValue(), $info, $returnType); |
||
| 609 | } |
||
| 610 | |||
| 611 | $runtimeType = $this->ensureValidRuntimeType( |
||
| 612 | $runtimeType, |
||
| 613 | $returnType, |
||
| 614 | $fieldNodes, |
||
| 615 | $info, |
||
| 616 | $result |
||
| 617 | ); |
||
| 618 | |||
| 619 | return $this->completeObjectValue( |
||
| 620 | $runtimeType, |
||
| 621 | $fieldNodes, |
||
| 622 | $info, |
||
| 623 | $path, |
||
| 624 | $result |
||
| 625 | ); |
||
| 626 | } |
||
| 627 | |||
| 628 | /** |
||
| 629 | * @param $runtimeTypeOrName |
||
| 630 | * @param AbstractTypeInterface $returnType |
||
| 631 | * @param $fieldNodes |
||
| 632 | * @param ResolveInfo $info |
||
| 633 | * @param $result |
||
| 634 | * @return TypeInterface|null |
||
| 635 | * @throws ExecutionException |
||
| 636 | */ |
||
| 637 | private function ensureValidRuntimeType( |
||
| 638 | $runtimeTypeOrName, |
||
| 639 | AbstractTypeInterface $returnType, |
||
| 640 | $fieldNodes, |
||
| 641 | ResolveInfo $info, |
||
| 642 | &$result |
||
| 643 | ) { |
||
| 644 | $runtimeType = is_string($runtimeTypeOrName) |
||
| 645 | ? $this->context->getSchema()->getType($runtimeTypeOrName) |
||
| 646 | : $runtimeTypeOrName; |
||
| 647 | |||
| 648 | $runtimeTypeName = is_string($runtimeType) ?: $runtimeType->getName(); |
||
| 649 | $returnTypeName = $returnType->getName(); |
||
| 650 | |||
| 651 | if (!$runtimeType instanceof ObjectType) { |
||
| 652 | $parentTypeName = $info->getParentType()->getName(); |
||
| 653 | $fieldName = $info->getFieldName(); |
||
| 654 | |||
| 655 | throw new ExecutionException( |
||
| 656 | "Abstract type {$returnTypeName} must resolve to an Object type at runtime " . |
||
| 657 | "for field {$parentTypeName}.{$fieldName} with " . |
||
| 658 | 'value "' . $result . '", received "{$runtimeTypeName}".' |
||
| 659 | ); |
||
| 660 | } |
||
| 661 | |||
| 662 | if (!$this->context->getSchema()->isPossibleType($returnType, $runtimeType)) { |
||
| 663 | throw new ExecutionException( |
||
| 664 | "Runtime Object type \"{$runtimeTypeName}\" is not a possible type for \"{$returnTypeName}\"." |
||
| 665 | ); |
||
| 666 | } |
||
| 667 | |||
| 668 | if ($runtimeType !== $this->context->getSchema()->getType($runtimeType->getName())) { |
||
| 669 | throw new ExecutionException( |
||
| 670 | "Schema must contain unique named types but contains multiple types named \"{$runtimeTypeName}\". " . |
||
| 671 | "Make sure that `resolveType` function of abstract type \"{$returnTypeName}\" returns the same " . |
||
| 672 | "type instance as referenced anywhere else within the schema." |
||
| 673 | ); |
||
| 674 | } |
||
| 675 | |||
| 676 | return $runtimeType; |
||
| 677 | } |
||
| 678 | |||
| 679 | /** |
||
| 680 | * @param $value |
||
| 681 | * @param $context |
||
| 682 | * @param ResolveInfo $info |
||
| 683 | * @param AbstractTypeInterface $abstractType |
||
| 684 | * @return TypeInterface|null |
||
| 685 | */ |
||
| 686 | private function defaultTypeResolver($value, $context, ResolveInfo $info, AbstractTypeInterface $abstractType) |
||
| 687 | { |
||
| 688 | $possibleTypes = $info->getSchema()->getPossibleTypes($abstractType); |
||
| 689 | |||
| 690 | foreach ($possibleTypes as $type) { |
||
| 691 | $isTypeOfResult = $type->isTypeOf($value, $context, $info); |
||
| 692 | |||
| 693 | if (null !== $isTypeOfResult) { |
||
| 694 | if ($isTypeOfResult) { |
||
| 695 | return $type; |
||
| 696 | } |
||
| 697 | } |
||
| 698 | } |
||
| 699 | |||
| 700 | return null; |
||
| 701 | } |
||
| 702 | |||
| 703 | /** |
||
| 704 | * @param ListType $returnType |
||
| 705 | * @param $fieldNodes |
||
| 706 | * @param ResolveInfo $info |
||
| 707 | * @param $path |
||
| 708 | * @param $result |
||
| 709 | * @return array |
||
| 710 | * @throws \Throwable |
||
| 711 | */ |
||
| 712 | private function completeListValue( |
||
| 713 | ListType $returnType, |
||
| 714 | $fieldNodes, |
||
| 715 | ResolveInfo $info, |
||
| 716 | $path, |
||
| 717 | &$result |
||
| 718 | ) { |
||
| 719 | $itemType = $returnType->getOfType(); |
||
| 720 | |||
| 721 | $completedItems = []; |
||
| 722 | |||
| 723 | foreach ($result as $key => $item) { |
||
| 724 | $fieldPath = $path; |
||
| 725 | $fieldPath[] = $key; |
||
| 726 | $completedItem = $this->completeValueCatchingError($itemType, $fieldNodes, $info, $fieldPath, $item); |
||
| 727 | $completedItems[] = $completedItem; |
||
| 728 | } |
||
| 729 | |||
| 730 | return $completedItems; |
||
| 731 | } |
||
| 732 | |||
| 733 | /** |
||
| 734 | * @param LeafTypeInterface $returnType |
||
| 735 | * @param $result |
||
| 736 | * @return mixed |
||
| 737 | * @throws ExecutionException |
||
| 738 | */ |
||
| 739 | private function completeLeafValue(LeafTypeInterface $returnType, &$result) |
||
| 740 | { |
||
| 741 | $serializedResult = $returnType->serialize($result); |
||
| 742 | |||
| 743 | if ($serializedResult === null) { |
||
| 744 | throw new ExecutionException( |
||
| 745 | sprintf('Expected a value of type "%s" but received: %s', toString($returnType), toString($result)) |
||
| 746 | ); |
||
| 747 | } |
||
| 748 | |||
| 749 | return $serializedResult; |
||
| 750 | } |
||
| 751 | |||
| 752 | /** |
||
| 753 | * @param ObjectType $returnType |
||
| 754 | * @param $fieldNodes |
||
| 755 | * @param ResolveInfo $info |
||
| 756 | * @param $path |
||
| 757 | * @param $result |
||
| 758 | * @return array |
||
| 759 | * @throws ExecutionException |
||
| 760 | * @throws InvalidTypeException |
||
| 761 | * @throws \Digia\GraphQL\Error\InvariantException |
||
| 762 | * @throws \Throwable |
||
| 763 | */ |
||
| 764 | private function completeObjectValue( |
||
| 765 | ObjectType $returnType, |
||
| 766 | $fieldNodes, |
||
| 767 | ResolveInfo $info, |
||
| 768 | $path, |
||
| 769 | &$result |
||
| 770 | ) { |
||
| 771 | return $this->collectAndExecuteSubFields( |
||
| 772 | $returnType, |
||
| 773 | $fieldNodes, |
||
| 774 | $info, |
||
| 775 | $path, |
||
| 776 | $result |
||
| 777 | ); |
||
| 778 | } |
||
| 779 | |||
| 780 | /** |
||
| 781 | * @param Field $field |
||
| 782 | * @param FieldNode $fieldNode |
||
| 783 | * @param callable $resolveFunction |
||
| 784 | * @param $rootValue |
||
| 785 | * @param ExecutionContext $context |
||
| 786 | * @param ResolveInfo $info |
||
| 787 | * @return array|\Throwable |
||
| 788 | */ |
||
| 789 | private function resolveFieldValueOrError( |
||
| 790 | Field $field, |
||
| 791 | FieldNode $fieldNode, |
||
| 792 | ?callable $resolveFunction, |
||
| 793 | $rootValue, |
||
| 794 | ExecutionContext $context, |
||
| 795 | ResolveInfo $info |
||
| 796 | ) { |
||
| 797 | try { |
||
| 798 | $args = $this->valuesResolver->coerceArgumentValues($field, $fieldNode, $context->getVariableValues()); |
||
| 799 | |||
| 800 | return $resolveFunction($rootValue, $args, $context->getContextValue(), $info); |
||
| 801 | } catch (\Throwable $error) { |
||
| 802 | return $error; |
||
| 803 | } |
||
| 804 | } |
||
| 805 | |||
| 806 | /** |
||
| 807 | * Try to resolve a field without any field resolver function. |
||
| 808 | * |
||
| 809 | * @param array|object $rootValue |
||
| 810 | * @param $args |
||
| 811 | * @param $context |
||
| 812 | * @param ResolveInfo $info |
||
| 813 | * @return mixed|null |
||
| 814 | */ |
||
| 815 | public static function defaultFieldResolver($rootValue, $args, $context, ResolveInfo $info) |
||
| 816 | { |
||
| 817 | $fieldName = $info->getFieldName(); |
||
| 818 | $property = null; |
||
| 819 | |||
| 820 | if (is_array($rootValue) && isset($rootValue[$fieldName])) { |
||
| 821 | $property = $rootValue[$fieldName]; |
||
| 822 | } |
||
| 823 | |||
| 824 | if (is_object($rootValue)) { |
||
| 825 | $getter = 'get' . ucfirst($fieldName); |
||
| 826 | if (method_exists($rootValue, $getter)) { |
||
| 827 | $property = $rootValue->{$getter}(); |
||
| 828 | } else if (property_exists($rootValue, $fieldName)) { |
||
| 829 | $property = $rootValue->{$fieldName}; |
||
| 830 | } |
||
| 831 | } |
||
| 832 | |||
| 833 | |||
| 834 | return $property instanceof \Closure ? $property($rootValue, $args, $context, $info) : $property; |
||
| 835 | } |
||
| 836 | |||
| 837 | /** |
||
| 838 | * @param ObjectType $returnType |
||
| 839 | * @param $fieldNodes |
||
| 840 | * @param ResolveInfo $info |
||
| 841 | * @param $path |
||
| 842 | * @param $result |
||
| 843 | * @return array |
||
| 844 | * @throws InvalidTypeException |
||
| 845 | * @throws \Digia\GraphQL\Error\ExecutionException |
||
| 846 | * @throws \Digia\GraphQL\Error\InvariantException |
||
| 847 | * @throws \Throwable |
||
| 848 | */ |
||
| 849 | private function collectAndExecuteSubFields( |
||
| 876 | } |
||
| 877 | } |
||
| 878 |
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.