242 lines
8.0 KiB
PHP
242 lines
8.0 KiB
PHP
<?php
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namespace app\admin\logic;
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use app\common\model\FileCate;
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use app\common\server\UrlServer;
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use think\Db;
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class FileNewLogic
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{
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public static function lists($get)
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{
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$field = 'id,name,uri';
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$where = [
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'del' => 0,
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'partner_id' => $get['partner_id'],
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'type' => FileCate::getTypeNumber($get['type']),
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'cate_id' => $get['cate_id']
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];
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$lists = Db::name('file')->field($field)->where($where)->page($get['page_no'], $get['page_size'])->select();
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$count = Db::name('file')->where($where)->count();
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foreach($lists as &$item) {
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$item['uri'] = UrlServer::getFileUrl($item['uri']);
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}
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return ['lists'=>$lists, 'count'=>$count];
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}
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public static function pagelists($get)
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{
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$field = 'id,name,uri';
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$where = [
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['del', '=', 0],
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['partner_id', '=', $get['partner_id']],
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['type', '=', FileCate::getTypeNumber($get['type'])]
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];
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if($get['cate_id']) {
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// 查找子分类，属于当前分类或当前分类下的子分类的文件都显示出来
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$child = self::getChildren($get['cate_id']);
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$child[] = intval($get['cate_id']);
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$where[] = ['cate_id', 'in', $child];
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}
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$lists = Db::name('file')->field($field)->where($where)->page($get['page_no'], $get['page_size'])->select();
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$count = Db::name('file')->where($where)->count();
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foreach($lists as &$item) {
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$item['uri'] = UrlServer::getFileUrl($item['uri']);
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}
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return ['lists'=>$lists, 'count'=>$count, 'page_no'=>$get['page_no'], 'page_size'=>$get['page_size']];
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}
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public static function addCate($post)
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{
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// 同级别不允许有同名分类
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$fileCate = FileCate::where([
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'del' => 0,
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'name' => $post['name'],
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'pid' => $post['pid']
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])->select()->toArray();
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if($fileCate) {
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return ['flag'=>false, 'msg'=>'同级别下已存在同名分类'];
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}
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// 分类不允许超过3级
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if(!empty($post['pid'])) {
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$level = FileCate::where(['id'=>$post['pid']])->value('level');
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if($level > 2) {
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return ['flag'=>false, 'msg'=>'分类不允许超过3级'];
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}
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$level = $level + 1;
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}else{
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$post['pid'] = 0;
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$level = 1;
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}
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switch($post['type']) {
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case 'video':
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$post['type'] = 2;
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break;
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}
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$post['level'] = $level;
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$post['create_time'] = time();
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$result = FileCate::create($post);
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if($result) {
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return ['flag'=>true, 'msg'=>'添加成功'];
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}else{
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return ['flag'=>false, 'msg'=>'添加失败'];
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}
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}
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public static function editCate($post)
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{
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if(empty($post['pid'])) {
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$post['pid'] = 0;
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$pidLevel = 1;
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}
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// 同级分类下不允许重名
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$pidChildren = FileCate::where([
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['pid', '=', $post['pid']],
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['del', '=', 0],
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['id', '<>', $post['id']],
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['name', '=', $post['name']]
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])->select()->toArray();
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if($pidChildren) {
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return ['flag'=>false, 'msg'=>'同级下已存在该名称的分类'];
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}
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// 上级不能是自身或自己的子分类
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$children = self::getChildren($post['id']);
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if($post['pid'] == $post['id'] || in_array($post['pid'], $children)) {
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return ['flag'=>false, 'msg'=>'上级分类不能为自身或自己的子分类'];
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}
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// 分类层级不能超过3级
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$level = self::calcLevel($post['id']);
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$pidLevel = FileCate::where('id', $post['pid'])->value('level');
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if($level + $pidLevel > 3) {
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return ['flag'=>false, 'msg'=>'分类层级不允许超过3级'];
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}
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FileCate::where('id', $post['id'])->update([
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'name'=>trim($post['name']),
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'sort' => $post['sort'],
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'pid' => $post['pid'],
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'update_time' => time()
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]);
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self::updateLevel($post['id']);
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return ['flag'=>true, 'msg'=>'编辑成功'];
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}
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public static function delCate($post)
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{
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// 分类下还有子分类不允许删除
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$children = FileCate::where([
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'del' => 0,
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'pid' => $post['id']
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])->select()->toArray();
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if($children) {
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return ['flag'=>false, 'msg'=>'该分类下还有子分类不允许删除'];
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}
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// 有文件正在使用该分类不允许删除
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$files = Db::name('file')->where(['del'=>0, 'cate_id'=>$post['id']])->select();
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if($files) {
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return ['flag'=>false, 'msg'=>'有文件正在使用该分类不允许删除'];
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}
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FileCate::where(['id'=>$post['id']])->update(['del'=>1, 'update_time'=>time()]);
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return ['flag'=>true, 'msg'=>'删除成功'];
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}
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public static function getChildren($id)
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{
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$child = [];
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$firstChild = FileCate::where(['del'=>0, 'pid'=>$id])->column('id');
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$child = $firstChild;
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foreach($firstChild as $firstId) {
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$secordChild = FileCate::where(['del'=>0, 'pid'=>$firstId])->column('id');
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$child = array_merge($child, $secordChild);
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}
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return $child;
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}
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public static function calcLevel($id)
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{
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$level = 1;
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$two_ids = FileCate::where(['pid' => $id, 'del' => 0])->column('id');
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if ($two_ids) {
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$level = 2;
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$three_ids = FileCate::where([
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['del', '=', 0],
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['pid', 'in', $two_ids]
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])->column('id');
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if ($three_ids) $level = 3;
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}
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return $level;
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}
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/**
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* 更新自己及后代分类的level
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*/
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public static function updateLevel($id)
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{
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$me = FileCate::find($id);
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if($me['pid'] == 0) { // 上级为顶级分类
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FileCate::update([
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'id' => $id,
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'level' => 1,
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'update_time' => time()
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]);
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$two_ids = FileCate::where([
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'pid' => $id,
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'del' => 0
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])->column('id');
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if($two_ids) {
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FileCate::where('id', 'in', $two_ids)->update([
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'level' => 2,
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'update_time' => time()
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]);
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$three_ids = FileCate::where([
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['pid', 'in', $two_ids],
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['del', '=', 0]
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])->column('id');
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if($three_ids) {
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FileCate::where('id', 'in', $three_ids)->update([
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'level' => 3,
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'update_time' => time()
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]);
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}
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}
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}else{
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$parent = FileCate::find($me['pid']);
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if($parent['level'] == 1) {
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FileCate::update([
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'id' => $id,
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'level' => 2,
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'update_time' => time()
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]);
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$three_ids = FileCate::where([
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'pid' => $id,
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'del' => 0
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])->column('id');
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if($three_ids) {
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FileCate::where('id', 'in', $three_ids)->update([
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'level' => 3,
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'update_time' => time()
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]);
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}
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}else if($parent['level'] == 2){
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FileCate::update([
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'id' => $id,
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'level' => 3,
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'update_time' => time()
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]);
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}
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}
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}
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public static function delFile($post)
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{
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try{
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$result = Db::name('file')->where('id', 'in', $post['ids'])->update([
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'del' => 1
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]);
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return true;
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}catch(\Exception $e) {
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return false;
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}
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}
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} |