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<?php |
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/* |
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* This file is a part of graphql-youshido project. |
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* |
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* @author Alexandr Viniychuk <[email protected]> |
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* created: 11/30/15 1:30 AM |
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*/ |
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namespace Youshido\GraphQL\Type\Config\Field; |
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use Youshido\GraphQL\Type\Config\Config; |
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use Youshido\GraphQL\Type\Config\Traits\ArgumentsAwareTrait; |
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use Youshido\GraphQL\Type\Object\AbstractObjectType; |
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use Youshido\GraphQL\Type\TypeInterface; |
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use Youshido\GraphQL\Type\TypeMap; |
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class FieldConfig extends Config |
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{ |
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use ArgumentsAwareTrait { |
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getArguments as traitGetArguments; |
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getArgument as traitGetArgument; |
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} |
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public function getRules() |
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{ |
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return [ |
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'name' => ['type' => TypeMap::TYPE_STRING, 'required' => true], |
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'type' => ['type' => TypeMap::TYPE_ANY, 'required' => true], |
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'args' => ['type' => TypeMap::TYPE_ARRAY], |
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'required' => ['type' => TypeMap::TYPE_BOOLEAN], |
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'description' => ['type' => TypeMap::TYPE_STRING], |
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'resolve' => ['type' => TypeMap::TYPE_FUNCTION], |
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'isDeprecated' => ['type' => TypeMap::TYPE_BOOLEAN], |
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'deprecationReason' => ['type' => TypeMap::TYPE_STRING], |
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]; |
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} |
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protected function build() |
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{ |
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$this->buildArguments(); |
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} |
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public function resolve($value = null, $args = []) |
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{ |
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$resolveFunction = $this->get('resolve', null); |
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if ($resolveFunction && is_callable($resolveFunction)) { |
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return $resolveFunction($value, $args); |
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} |
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return $this->getType()->resolve($value, $args); |
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} |
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/** |
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* @return TypeInterface|AbstractObjectType |
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*/ |
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public function getType() |
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{ |
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return $this->data['type']; |
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} |
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public function getArgument($name) |
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{ |
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return $this->traitGetArgument($name) ?: $this->getType()->getConfig()->getArgument($name); |
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} |
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/** |
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* @return \Youshido\GraphQL\Type\Field\InputField[] |
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*/ |
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public function getArguments() |
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{ |
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return $this->traitGetArguments() ?: $this->getType()->getConfig()->getArguments(); |
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} |
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} |
Let’s take a look at an example:
In the above example, the authenticate() method works fine as long as you just pass instances of MyUser. However, if you now also want to pass a different implementation of User which does not have a getDisplayName() method, the code will break.
Available Fixes
Change the type-hint for the parameter:
Add an additional type-check:
Add the method to the interface: