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<?php |
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/** |
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* Represents a latitude and longitude pair. |
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* |
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* @author M. Yilmaz SUSLU <[email protected]> |
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* @license MIT |
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* |
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* @since Sep 2016 |
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*/ |
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namespace DDD\Embeddable; |
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use Doctrine\ORM\Mapping as ORM; |
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use JsonSerializable; |
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/** |
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* @ORM\Embeddable |
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*/ |
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class GeoPoint implements JsonSerializable |
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{ |
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/** |
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* geo point value, stored as associative array |
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* |
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* @ORM\Column(type="array", nullable=true) |
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* |
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* @var array |
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*/ |
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private $point; |
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/** |
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* Constructor |
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* |
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* @param float $lat Latitude |
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* @param float $lng Longitude |
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*/ |
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public function __construct($lat = null, $lng = null) |
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{ |
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if ($lat && $lng) { |
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if ($lat < -90.0 || $lat > 90.0 || $lng < -180.0 || $lng > 180.0) { |
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throw new \InvalidArgumentException('Given latitude longitude pair is invalid.'); |
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} |
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$this->point = [ |
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'lat' => (float) $lat, |
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'lng' => (float) $lng, |
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]; |
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} |
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} |
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/** |
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* return elasticsearch-friendly geo point format. |
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* |
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* Beware: Elastic uses lat/lon as keys. Google uses lat/lng. |
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* |
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* @return array |
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*/ |
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public function toElastic() |
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{ |
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if (empty($this->point)) { |
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return []; |
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} |
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return [ |
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'lat' => $this->point['lat'], |
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'lon' => $this->point['lng'], |
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]; |
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} |
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/** |
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* Array representation of the geo point |
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* |
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* @return array |
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*/ |
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public function toArray() |
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{ |
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return $this->point ?: []; |
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} |
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/** |
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* Implement json serializable interface. |
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* |
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* @return array |
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*/ |
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public function jsonSerialize() |
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{ |
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return $this->toArray(); |
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} |
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/** |
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* String representation of the point, lat lng order, separated by a space. |
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* |
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* @return string |
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*/ |
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public function __toString() |
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{ |
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if (empty($this->point)) { |
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return ''; |
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} |
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return $this->point['lat'].' '.$this->point['lng']; |
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} |
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} |
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