46 lines
1.2 KiB
PHP
46 lines
1.2 KiB
PHP
<?php
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namespace App\Traits;
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//use App\Models\Previewer;
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use App\Contracts\Previewable;
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use App\Models\Preview;
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use Illuminate\Database\Eloquent\Relations\MorphMany;
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trait CanPreview
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{
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//通用访客功能
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public function preview(Previewable $previewable):preview
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{
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$arr = [
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'previewed_id' => $this->primaryId(),
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'previewed_type' => get_class(),
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];
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$result = $this->hasPreviewed($previewable);
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if ($result) {
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$preview = $previewable->previews()->where($arr)->first();
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$preview->increment('num', 1);
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}else {
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$preview = new Preview($arr);
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$previewable->previews()->save($preview);
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}
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return $preview;
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}
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public function hasPreviewed(Previewable $previewable):bool
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{
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$preview = [
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'previewed_id' => $this->primaryId(),
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'previewed_type' => get_class(),
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];
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$result = $previewable->previews()->where($preview)->count();
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return $result;
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}
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//用户访问列表（所有服务）
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public function previews(): MorphMany
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{
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return $this->morphMany(Preview::class);
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}
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}
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