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63 lines
1.6 KiB
PHP
63 lines
1.6 KiB
PHP
<?php
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declare(strict_types=1);
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namespace App\Helper;
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use App\Exception\BusinessException;
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use Hyperf\Database\Model\Relations\Relation;
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class Morph
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{
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/**
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* 只支持多态关联实体的关联键为id
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*
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* @param int $morphId
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* @param string $morphType
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* @return void
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*/
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public static function getMorph(int $morphId, string $morphType)
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{
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$class = self::getMorphClass($morphType);
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if (is_null($class)) {
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throw new BusinessException('Morph type error!');
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}
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return $class::where('id', $morphId)->first();
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}
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public static function getMorphClass(string $morphType): ?string
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{
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return Relation::$morphMap[$morphType] ?? null;
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}
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/**
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* 验证评论类型是否存在
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*
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* @param string $morphType
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* @return void
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* @throws BusinessException
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*/
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public static function checkMorphType(string $morphType)
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{
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if (is_null(self::getMorphClass($morphType))) {
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throw new BusinessException('Morph type error!');
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}
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}
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public static function instanceOf(string $morphType, $instance): bool
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{
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return get_class($instance) === self::getMorphClass($morphType);
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}
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public static function getMorphTypeOfInstance(object $instance): string
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{
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return self::getMorphType(get_class($instance));
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}
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public static function getMorphType(string $class): string
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{
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$morphMap = Relation::$morphMap;
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$morphMap = array_flip($morphMap);
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return $morphMap[$class] ?? '';
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}
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} |