digiaonline /
graphql-php
| Total Complexity | 69 |
| Total Lines | 542 |
| Duplicated Lines | 0 % |
| Changes | 0 | ||
Complex classes like ValuesHelper 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 ValuesHelper, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 33 | class ValuesHelper |
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| 34 | { |
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| 35 | /** |
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| 36 | * Prepares an object map of argument values given a list of argument |
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| 37 | * definitions and list of argument AST nodes. |
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| 38 | * |
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| 39 | * @see http://facebook.github.io/graphql/October2016/#CoerceArgumentValues() |
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| 40 | * |
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| 41 | * @param Field|Directive $definition |
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| 42 | * @param ArgumentsAwareInterface $node |
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| 43 | * @param array $variableValues |
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| 44 | * @return array |
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| 45 | * @throws ExecutionException |
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| 46 | * @throws InvalidTypeException |
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| 47 | * @throws InvariantException |
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| 48 | */ |
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| 49 | public function coerceArgumentValues($definition, ArgumentsAwareInterface $node, array $variableValues = []): array |
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| 50 | { |
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| 51 | $coercedValues = []; |
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| 52 | $argumentDefinitions = $definition->getArguments(); |
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| 53 | $argumentNodes = $node->getArguments(); |
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| 54 | |||
| 55 | if (empty($argumentDefinitions) || $argumentNodes === null) { |
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| 56 | return $coercedValues; |
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| 57 | } |
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| 58 | |||
| 59 | $argumentNodeMap = keyMap($argumentNodes, function (ArgumentNode $value) { |
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| 60 | return $value->getNameValue(); |
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| 61 | }); |
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| 62 | |||
| 63 | foreach ($argumentDefinitions as $argumentDefinition) { |
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| 64 | $argumentName = $argumentDefinition->getName(); |
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| 65 | $argumentType = $argumentDefinition->getType(); |
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| 66 | /** @var ArgumentNode $argumentNode */ |
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| 67 | $argumentNode = $argumentNodeMap[$argumentName] ?? null; |
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| 68 | $defaultValue = $argumentDefinition->getDefaultValue(); |
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| 69 | |||
| 70 | if (null === $argumentNode) { |
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| 71 | if (null !== $defaultValue) { |
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| 72 | $coercedValues[$argumentName] = $defaultValue; |
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| 73 | } elseif ($argumentType instanceof NonNullType) { |
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| 74 | throw new ExecutionException( |
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| 75 | sprintf('Argument "%s" of required type "%s" was not provided.', $argumentName, |
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| 76 | $argumentType), |
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| 77 | [$node] |
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| 78 | ); |
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| 79 | } |
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| 80 | } elseif ($argumentNode->getValue() instanceof VariableNode) { |
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| 81 | $coercedValues[$argumentName] = $this->coerceValueForVariableNode( |
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| 82 | $argumentNode->getValue(), |
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| 83 | $argumentType, |
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| 84 | $argumentName, |
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| 85 | $variableValues, |
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| 86 | $defaultValue |
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| 87 | ); |
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| 88 | } else { |
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| 89 | $coercedValue = null; |
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|
Unused Code
introduced
by
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| 90 | |||
| 91 | try { |
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| 92 | $coercedValue = valueFromAST($argumentNode->getValue(), $argumentType, $variableValues); |
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| 93 | } catch (\Exception $ex) { |
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| 94 | // Value nodes that cannot be resolved should be treated as invalid values |
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| 95 | // because there is no undefined value in PHP so that we throw an exception |
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| 96 | |||
| 97 | throw new ExecutionException( |
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| 98 | sprintf('Argument "%s" has invalid value %s.', |
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| 99 | $argumentName, |
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| 100 | (string)$argumentNode->getValue()), |
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| 101 | [$argumentNode->getValue()], |
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| 102 | null, null, null, $ex |
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| 103 | ); |
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| 104 | } |
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| 105 | |||
| 106 | $coercedValues[$argumentName] = $coercedValue; |
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| 107 | } |
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| 108 | } |
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| 109 | |||
| 110 | return $coercedValues; |
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| 111 | } |
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| 112 | |||
| 113 | /** |
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| 114 | * Prepares an object map of argument values given a directive definition |
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| 115 | * and a AST node which may contain directives. Optionally also accepts a map |
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| 116 | * of variable values. |
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| 117 | * |
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| 118 | * If the directive does not exist on the node, returns null. |
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| 119 | * |
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| 120 | * @param Directive $directive |
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| 121 | * @param mixed $node |
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| 122 | * @param array $variableValues |
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| 123 | * @return array|null |
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| 124 | * @throws ExecutionException |
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| 125 | * @throws InvalidTypeException |
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| 126 | * @throws InvariantException |
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| 127 | */ |
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| 128 | public function coerceDirectiveValues( |
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| 129 | Directive $directive, |
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| 130 | $node, |
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| 131 | array $variableValues = [] |
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| 132 | ): ?array { |
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| 133 | $directiveNode = $node->hasDirectives() |
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| 134 | ? find($node->getDirectives(), function (NameAwareInterface $value) use ($directive) { |
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| 135 | return $value->getNameValue() === $directive->getName(); |
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| 136 | }) : null; |
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| 137 | |||
| 138 | if (null !== $directiveNode) { |
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| 139 | return $this->coerceArgumentValues($directive, $directiveNode, $variableValues); |
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| 140 | } |
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| 141 | |||
| 142 | return null; |
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| 143 | } |
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| 144 | |||
| 145 | /** |
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| 146 | * Prepares an object map of variableValues of the correct type based on the |
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| 147 | * provided variable definitions and arbitrary input. If the input cannot be |
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| 148 | * parsed to match the variable definitions, a GraphQLError will be thrown. |
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| 149 | * |
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| 150 | * @param Schema $schema |
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| 151 | * @param array|VariableDefinitionNode[] $variableDefinitionNodes |
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| 152 | * @param $input |
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| 153 | * @return CoercedValue |
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| 154 | * @throws \Exception |
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| 155 | */ |
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| 156 | public function coerceVariableValues(Schema $schema, array $variableDefinitionNodes, array $inputs): CoercedValue |
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| 157 | { |
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| 158 | $coercedValues = []; |
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| 159 | $errors = []; |
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| 160 | |||
| 161 | foreach ($variableDefinitionNodes as $variableDefinitionNode) { |
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| 162 | $variableName = $variableDefinitionNode->getVariable()->getNameValue(); |
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| 163 | $variableType = typeFromAST($schema, $variableDefinitionNode->getType()); |
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| 164 | |||
| 165 | if (!$this->isInputType($variableType)) { |
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| 166 | $variableTypeName = (string)$variableType; |
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| 167 | |||
| 168 | if ($variableTypeName === '') { |
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| 169 | $variableTypeName = (string)$variableDefinitionNode; |
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| 170 | } |
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| 171 | |||
| 172 | $errors[] = $this->buildCoerceException( |
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| 173 | sprintf( |
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| 174 | 'Variable "$%s" expected value of type "%s" which cannot be used as an input type', |
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| 175 | $variableName, |
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| 176 | $variableTypeName |
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| 177 | ), |
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| 178 | $variableDefinitionNode, |
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| 179 | null |
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| 180 | ); |
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| 181 | } else { |
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| 182 | if (!array_key_exists($variableName, $inputs)) { |
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| 183 | if ($variableType instanceof NonNullType) { |
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| 184 | $errors[] = $this->buildCoerceException( |
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| 185 | sprintf( |
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| 186 | 'Variable "$%s" of required type "%s" was not provided', |
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| 187 | $variableName, |
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| 188 | (string)$variableType |
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| 189 | ), |
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| 190 | $variableDefinitionNode, |
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| 191 | null |
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| 192 | ); |
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| 193 | } elseif ($variableDefinitionNode->getDefaultValue() !== null) { |
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| 194 | $coercedValues[$variableName] = valueFromAST( |
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| 195 | $variableDefinitionNode->getDefaultValue(), |
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| 196 | $variableType |
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| 197 | ); |
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| 198 | } |
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| 199 | } else { |
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| 200 | $value = $inputs[$variableName]; |
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| 201 | $coercedValue = $this->coerceValue($value, $variableType, $variableDefinitionNode); |
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| 202 | if ($coercedValue->hasErrors()) { |
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| 203 | $messagePrelude = sprintf( |
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| 204 | 'Variable "$%s" got invalid value %s', |
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| 205 | $variableName, json_encode($value) |
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| 206 | ); |
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| 207 | foreach ($coercedValue->getErrors() as $error) { |
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| 208 | $errors[] = $this->buildCoerceException( |
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| 209 | $messagePrelude, |
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| 210 | $variableDefinitionNode, |
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| 211 | null, |
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| 212 | $error->getMessage(), |
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| 213 | $error |
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| 214 | ); |
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| 215 | } |
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| 216 | } else { |
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| 217 | $coercedValues[$variableName] = $coercedValue->getValue(); |
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| 218 | } |
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| 219 | } |
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| 220 | } |
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| 221 | } |
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| 222 | |||
| 223 | return new CoercedValue($coercedValues, $errors); |
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| 224 | } |
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| 225 | |||
| 226 | |||
| 227 | /** |
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| 228 | * @param TypeInterface|null $type |
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| 229 | * @return bool |
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| 230 | */ |
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| 231 | protected function isInputType(?TypeInterface $type) |
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| 232 | { |
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| 233 | return ($type instanceof ScalarType) || |
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| 234 | ($type instanceof EnumType) || |
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| 235 | ($type instanceof InputObjectType) || |
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| 236 | (($type instanceof WrappingTypeInterface) && $this->isInputType($type->getOfType())); |
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| 237 | } |
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| 238 | |||
| 239 | /** |
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| 240 | * Returns either a value which is valid for the provided type or a list of |
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| 241 | * encountered coercion errors. |
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| 242 | * |
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| 243 | * @param mixed|array $value |
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| 244 | * @param $type |
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| 245 | * @param $blameNode |
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| 246 | * @param array $path |
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| 247 | * @return CoercedValue |
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| 248 | * @throws InvariantException |
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| 249 | * @throws GraphQLException |
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| 250 | */ |
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| 251 | private function coerceValue($value, $type, $blameNode, ?Path $path = null): CoercedValue |
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| 278 | } |
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| 279 | |||
| 280 | /** |
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| 281 | * @param $value |
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| 282 | * @param NonNullType $type |
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| 283 | * @param NodeInterface $blameNode |
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| 284 | * @param array|null $path |
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| 285 | * @return CoercedValue |
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| 286 | * @throws GraphQLException |
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| 287 | * @throws InvariantException |
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| 288 | */ |
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| 289 | protected function coerceValueForNonNullType( |
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| 305 | } |
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| 306 | |||
| 307 | /** |
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| 308 | * Scalars determine if a value is valid via parseValue(), which can |
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| 309 | * throw to indicate failure. If it throws, maintain a reference to |
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| 310 | * the original error. |
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| 311 | * |
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| 312 | * @param $value |
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| 313 | * @param ScalarType $type |
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| 314 | * @param NodeInterface $blameNode |
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| 315 | * @param array|null $path |
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| 316 | * @return CoercedValue |
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| 317 | */ |
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| 318 | protected function coerceValueForScalarType( |
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| 319 | $value, |
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| 320 | ScalarType $type, |
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| 321 | NodeInterface $blameNode, |
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| 322 | ?Path $path |
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| 323 | ): CoercedValue { |
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| 324 | try { |
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| 325 | $parseResult = $type->parseValue($value); |
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| 326 | if (empty($parseResult)) { |
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| 327 | return new CoercedValue(null, [ |
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| 328 | new GraphQLException(sprintf('Expected type %s', (string)$type)) |
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| 329 | ]); |
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| 330 | } |
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| 331 | return new CoercedValue($parseResult, null); |
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| 332 | } catch (InvalidTypeException|CoercingException $ex) { |
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| 333 | return new CoercedValue(null, [ |
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| 334 | $this->buildCoerceException( |
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| 335 | sprintf('Expected type %s', (string)$type), |
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| 336 | $blameNode, |
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| 337 | $path, |
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| 338 | $ex->getMessage(), |
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| 339 | $ex |
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| 340 | ) |
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| 341 | ]); |
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| 342 | } |
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| 343 | } |
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| 344 | |||
| 345 | /** |
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| 346 | * @param $value |
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| 347 | * @param EnumType $type |
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| 348 | * @param NodeInterface $blameNode |
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| 349 | * @param array|null $path |
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| 350 | * @return CoercedValue |
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| 351 | * @throws InvariantException |
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| 352 | */ |
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| 353 | protected function coerceValueForEnumType( |
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| 376 | ]); |
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| 377 | } |
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| 378 | |||
| 379 | /** |
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| 380 | * @param $value |
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| 381 | * @param ListType $type |
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| 382 | * @param NodeInterface $blameNode |
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| 383 | * @param array|null $path |
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| 384 | * @return CoercedValue |
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| 385 | * @throws GraphQLException |
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| 386 | * @throws InvariantException |
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| 387 | */ |
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| 388 | protected function coerceValueForInputObjectType( |
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| 389 | $value, |
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| 390 | InputObjectType $type, |
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| 391 | NodeInterface $blameNode, |
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| 392 | ?Path $path |
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| 393 | ): CoercedValue { |
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| 394 | $errors = []; |
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| 395 | $coercedValues = []; |
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| 396 | $fields = $type->getFields(); |
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| 397 | |||
| 398 | // Ensure every defined field is valid. |
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| 399 | foreach ($fields as $field) { |
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| 400 | if (empty($value[$field->getName()])) { |
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| 401 | if (!empty($field->getDefaultValue())) { |
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| 402 | $coercedValue[$field->getName()] = $field->getDefaultValue(); |
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| 403 | } elseif ($field->getType() instanceof NonNullType) { |
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| 404 | $errors[] = new GraphQLException( |
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| 405 | sprintf( |
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| 406 | "Field %s of required type %s! was not provided.", |
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| 407 | $this->printPath(new Path($path, $field->getName())), |
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| 408 | $field->getType()->getOfType() |
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| 409 | ) |
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| 410 | ); |
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| 411 | } |
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| 412 | } else { |
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| 413 | $fieldValue = $value[$field->getName()]; |
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| 414 | $coercedValue = $this->coerceValue( |
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| 415 | $fieldValue, |
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| 416 | $field->getType(), |
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| 417 | $blameNode, |
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| 418 | new Path($path, $field->getName()) |
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| 419 | ); |
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| 420 | |||
| 421 | if ($coercedValue->hasErrors()) { |
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| 422 | $errors = array_merge($errors, $coercedValue->getErrors()); |
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| 423 | } elseif (empty($errors)) { |
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| 424 | $coercedValues[$field->getName()] = $coercedValue->getValue(); |
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| 425 | } |
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| 426 | } |
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| 427 | } |
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| 428 | |||
| 429 | // Ensure every provided field is defined. |
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| 430 | foreach ($value as $fieldName => $fieldValue) { |
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| 431 | if (!isset($fields[$fieldName])) { |
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| 432 | $suggestions = suggestionList($fieldName, array_keys($fields)); |
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| 433 | $didYouMean = (!empty($suggestions)) |
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| 434 | ? 'did you mean' . implode(',', $suggestions) |
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| 435 | : null; |
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| 436 | |||
| 437 | $errors[] = $this->buildCoerceException( |
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| 438 | sprintf('Field "%s" is not defined by type %s', $fieldName, $type->getName()), |
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| 439 | $blameNode, |
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| 440 | $path, |
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| 441 | $didYouMean |
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| 442 | ); |
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| 443 | } |
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| 444 | } |
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| 445 | |||
| 446 | return new CoercedValue($coercedValues, $errors); |
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| 447 | } |
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| 448 | |||
| 449 | /** |
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| 450 | * @param $value |
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| 451 | * @param $type |
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| 452 | * @return CoercedValue |
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| 453 | * @throws GraphQLException |
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| 454 | * @throws InvariantException |
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| 455 | */ |
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| 456 | protected function coerceValueForListType( |
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| 457 | $value, |
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| 458 | ListType $type, |
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| 459 | NodeInterface $blameNode, |
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| 460 | ?Path $path |
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| 461 | ): CoercedValue { |
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| 462 | $itemType = $type->getOfType(); |
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| 463 | |||
| 464 | if (is_array($value) || $value instanceof \Traversable) { |
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| 465 | $errors = []; |
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| 466 | $coercedValues = []; |
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| 467 | foreach ($value as $index => $itemValue) { |
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| 468 | $coercedValue = $this->coerceValue($itemValue, $itemType, $blameNode, new Path($path, $index)); |
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| 469 | |||
| 470 | if ($coercedValue->hasErrors()) { |
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| 471 | $errors = array_merge($errors, $coercedValue->getErrors()); |
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| 472 | } else { |
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| 473 | $coercedValues[] = $coercedValue->getValue(); |
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| 474 | } |
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| 475 | } |
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| 476 | |||
| 477 | return new CoercedValue($coercedValues, $errors); |
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| 478 | } |
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| 479 | |||
| 480 | // Lists accept a non-list value as a list of one. |
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| 481 | $coercedValue = $this->coerceValue($value, $itemType, $blameNode); |
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| 482 | |||
| 483 | return new CoercedValue([$coercedValue->getValue()], $coercedValue->getErrors()); |
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| 484 | } |
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| 485 | |||
| 486 | /** |
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| 487 | * @param string $message |
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| 488 | * @param NodeInterface $blameNode |
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| 489 | * @param array|null $path |
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| 490 | * @param null|string $subMessage |
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| 491 | * @param GraphQLException|null $origin $originalException |
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| 492 | * @return GraphQLException |
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| 493 | */ |
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| 494 | protected function buildCoerceException( |
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| 512 | ); |
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| 513 | } |
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| 514 | |||
| 515 | /** |
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| 516 | * @param array|null $path |
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| 517 | * @return string |
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| 518 | */ |
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| 519 | protected function printPath(?Path $path) |
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| 535 | } |
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| 536 | |||
| 537 | /** |
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| 538 | * @param VariableNode $variableNode |
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| 539 | * @param TypeInterface $argumentType |
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| 540 | * @param string $argumentName |
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| 541 | * @param array $variableValues |
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| 542 | * @param mixed $defaultValue |
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| 543 | * @return mixed |
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| 544 | * @throws ExecutionException |
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| 545 | */ |
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| 546 | protected function coerceValueForVariableNode( |
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| 575 | ); |
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| 576 | } |
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| 579 |
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