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<?php |
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declare(strict_types=1); |
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namespace YucaDoo\LaravelGeoJsonRule; |
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use GeoJson\GeoJson; |
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use GeoJson\Geometry\Polygon; |
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use Illuminate\Contracts\Validation\Rule; |
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use InvalidArgumentException; |
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use Throwable; |
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/** |
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* RFC 7946 GeoJSON Format specification. |
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*/ |
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class GeoJsonRule implements Rule |
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{ |
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/** @var string */ |
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private $geometryClass; |
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/** @var Throwable */ |
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private $exception; |
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/** |
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* Constructor. |
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* @param string|null $geometryClass Expected geometry. |
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*/ |
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public function __construct(?string $geometryClass = null) |
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{ |
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$this->geometryClass = $geometryClass; |
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} |
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/** |
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* Determine if the validation rule passes. |
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* |
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* @param string $attribute |
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* @param mixed $value |
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* @return bool |
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*/ |
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public function passes($attribute, $value) |
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{ |
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try { |
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468 |
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if (is_string($value)) { |
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// Handle undecoded JSON |
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$value = json_decode($value); |
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if (is_null($value)) { |
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throw new InvalidArgumentException('JSON is invalid'); |
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} |
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} |
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// An exception will be thrown if parsing fails |
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$geometry = GeoJson::jsonUnserialize($value); |
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} catch (Throwable $t) { |
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$this->exception = $t; |
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return false; |
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} |
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// Check geometry type if specified |
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if (!empty($this->geometryClass)) { |
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return get_class($geometry) === $this->geometryClass; |
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} |
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return true; |
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} |
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/** |
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* Get the validation error message. |
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* |
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* @return string|array |
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*/ |
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public function message() |
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{ |
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$message = 'The :attribute does not satisfy the RFC 7946 GeoJSON Format specification'; |
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if (!empty($this->exception)) { |
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$message .= ' because ' . $this->exception->getMessage(); |
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} elseif (!empty($this->geometryClass)) { |
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$message .= ' for ' . basename(str_replace('\\', '/', $this->geometryClass)); |
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} |
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return $message; |
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} |
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} |
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yucadoo /
laravel-geojson-rule
