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<?php |
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namespace SimpleCMS\Region\Packages; |
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use Illuminate\Support\Collection; |
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/** |
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* 地理信息平铺 |
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*/ |
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class FlattenRegion |
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{ |
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protected Collection $regions; |
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public function __construct(Collection $regions) |
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{ |
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$this->regions = new Collection(); |
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$this->setFlatten($regions); |
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} |
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protected function setFlatten(Collection $regions) |
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{ |
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$regions->each(function (RegionModel $region) { |
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$this->regions->add($this->flatten($region)); |
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}); |
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$this->regions = $this->regions->flatten(5); |
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} |
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/** |
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* 平铺数组 |
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* |
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* @author Dennis Lui <[email protected]> |
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* @return array<int,RegionModel> |
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* |
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*/ |
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protected function flatten(RegionModel $region): array |
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{ |
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$children = $region->children; |
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$region->children = new Collection(); |
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$newArray = [ |
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$region |
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]; |
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if ($children->count()) { |
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foreach ($children as $child) { |
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$newArray[] = $this->flatten($child); |
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} |
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} |
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return $newArray; |
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} |
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/** |
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* Determine if an item exists in the collection. |
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* |
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* @param mixed $key |
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* @param mixed $operator |
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* @param mixed $value |
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* @return bool |
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*/ |
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public function contains($key, $operator = null, $value = null) |
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{ |
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return $this->regions->contains($key, $operator, $value); |
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} |
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/** |
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* Get the first item from the collection passing the given truth test. |
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* |
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* @param ?callable $callback |
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* @param ?mixed $default |
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* @return mixed |
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*/ |
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public function first(?callable $callback = null, $default = null) |
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{ |
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return $this->regions->first($callback, $default); |
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} |
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} |