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<?php |
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declare(strict_types=1); |
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namespace gamringer\JSONPatch\Operation; |
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use gamringer\JSONPatch\Operation; |
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use gamringer\JSONPointer\Pointer; |
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use gamringer\JSONPointer\VoidValue; |
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use gamringer\JSONPointer; |
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class Move extends Operation implements Atomic |
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{ |
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private $from = ''; |
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private $previousValue; |
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public function __construct(string $path, string $from) |
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{ |
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$this->path = $path; |
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$this->from = $from; |
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} |
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public function apply(Pointer $target) |
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{ |
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try { |
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$movedValue = $target->remove($this->from); |
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$this->previousValue = $target->insert($this->path, $movedValue); |
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} catch (JSONPointer\Exception $e) { |
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throw new Exception($e->getMessage(), 0, $e); |
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} |
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} |
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public function revert(Pointer $target) |
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{ |
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$movedValue = $target->remove($this->path); |
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if (!($this->previousValue instanceof VoidValue)) { |
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$target->insert($this->path, $this->previousValue); |
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} |
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$target->insert($this->from, $movedValue); |
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} |
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public static function fromDecodedJSON($operationContent): self |
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{ |
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self::assertValidOperationContent($operationContent); |
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return new self($operationContent->path, $operationContent->from); |
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} |
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private static function assertValidOperationContent($operationContent) |
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{ |
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if (!property_exists($operationContent, 'path') || !property_exists($operationContent, 'from')) { |
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throw new Operation\Exception('"Move" Operations must contain a "from" and "path" member'); |
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} |
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} |
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public function __toString(): string |
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{ |
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return json_encode([ |
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'op' => Operation::OP_MOVE, |
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'path' => $this->path, |
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'from' => $this->from, |
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]); |
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} |
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} |
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gamringer /
JSONPatch
