115 lines
2.9 KiB
PHP
115 lines
2.9 KiB
PHP
<?php
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namespace app\common\model;
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use Throwable;
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use think\Model;
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use think\facade\Event;
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use app\admin\model\Admin;
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use app\common\library\Upload;
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use think\model\relation\BelongsTo;
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/**
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* Attachment模型
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* @property string url 文件物理路径
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* @property int quote 上传(引用)次数
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* @property int last_upload_time 最后上传时间
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*/
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class Attachment extends Model
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{
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protected $autoWriteTimestamp = true;
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protected $updateTime = false;
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protected $append = [
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'suffix',
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'full_url'
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];
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/**
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* 上传类实例，可以通过它调用上传文件驱动，且驱动类具有静态缓存
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*/
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protected static Upload $upload;
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protected static function init(): void
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{
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self::$upload = new Upload();
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}
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public function getSuffixAttr($value, $row): string
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{
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if ($row['name']) {
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$suffix = strtolower(pathinfo($row['name'], PATHINFO_EXTENSION));
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return $suffix && preg_match("/^[a-zA-Z0-9]+$/", $suffix) ? $suffix : 'file';
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}
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return 'file';
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}
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public function getFullUrlAttr($value, $row): string
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{
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$driver = self::$upload->getDriver($row['storage'], false);
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return $driver ? $driver->url($row['url']) : full_url($row['url']);
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}
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/**
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* 新增前
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* @throws Throwable
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*/
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protected static function onBeforeInsert($model): bool
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{
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$repeat = $model->where([
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['sha1', '=', $model->sha1],
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['topic', '=', $model->topic],
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['storage', '=', $model->storage],
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])->find();
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if ($repeat) {
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$driver = self::$upload->getDriver($repeat->storage, false);
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if ($driver && !$driver->exists($repeat->url)) {
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$repeat->delete();
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return true;
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} else {
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$repeat->quote++;
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$repeat->last_upload_time = time();
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$repeat->save();
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return false;
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}
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}
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return true;
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}
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/**
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* 新增后
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*/
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protected static function onAfterInsert($model): void
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{
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Event::trigger('AttachmentInsert', $model);
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if (!$model->last_upload_time) {
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$model->quote = 1;
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$model->last_upload_time = time();
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$model->save();
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}
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}
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/**
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* 删除后
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*/
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protected static function onAfterDelete($model): void
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{
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Event::trigger('AttachmentDel', $model);
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$driver = self::$upload->getDriver($model->storage, false);
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if ($driver && $driver->exists($model->url)) {
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$driver->delete($model->url);
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}
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}
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public function admin(): BelongsTo
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{
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return $this->belongsTo(Admin::class);
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}
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public function user(): BelongsTo
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{
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return $this->belongsTo(User::class);
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}
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} |