PHP.31-TP框架商城应用实例-后台9-商品相册-修改、删除(AJAX)

//删除图片
        $(".btn_del_pic").click(function(){
            if(confirm(‘确定要删除吗？‘))
            {
                //先选中删除按钮所在的li标签
                var li = $(this).parent();
                //从这个按钮上获取pic_id属性
                var pid = $(this).attr("pic_id");
                $.ajax({
                    type : "GET",
                    url : "<?php echo U(‘ajaxDelPic‘, ‘‘, FALSE); ?>/picid/"+pid,
                    success : function(data)
                    {
                        //把图片从页面中删除掉
                        li.remove();
                    }
                });
            }
        })

　　　　　　thinkphp中的大U函数三个参数：
                 U(‘ajaxDelPic‘)                        ==>        /index.php/Admin/Goods/ajaxDelPic.html
                 U(‘ajaxDelPic?id=1‘)                    ==>        /index.php/Admin/Goods/ajaxDelPic/id/1.html
                 U(‘ajaxDelPic‘, array(‘id‘=>1))        ==>        /index.php/Admin/Goods/ajaxDelPic/id/1.html
                 U(‘ajaxDelPic‘, array(‘id‘=>1), FALSE)    ==>        /index.php/Admin/Goods/ajaxDelPic/id/1

//钩子方法_before_update:更新前插入，在添加前会自动调用
        protected function _before_update(&$data, $option)
        {
            $id = $option[‘where‘][‘id‘];    //要修改的商品的ID
            /**************处理LOGO******************/
            //判断有没有选择图片
            
            if($_FILES[‘logo‘][‘error‘] == 0)
            {
                $ret = uploadOne(‘logo‘, ‘Goods‘, array(
                    array(700, 700),
                    array(350, 350),
                    array(130, 130),
                    array(50, 50),
                ));
                $data[‘logo‘] = $ret[‘images‘][0];
                $data[‘mbig_logo‘] = $ret[‘images‘][1];
                $data[‘big_logo‘] = $ret[‘images‘][2];
                $data[‘mid_logo‘] = $ret[‘images‘][3];
                $data[‘sm_logo‘] = $ret[‘images‘][4];
                    
                    //先查询出原来的图片的路径
                $oldLogo = $this->field(‘logo,mbig_logo,big_logo,mid_logo,sm_logo‘)->find($id);
                    //从硬盘上删除图片
                deleteImage($oldLogo);
            }
            
            /**********商品相册处理********/
            if(isset($_FILES[‘pic‘]))    //先判断是否有上传
            {
                $pics = array();
                //var_dump($_FILES[‘pic‘][‘name‘]);die();
                //二维数组转成一维
                foreach ($_FILES[‘pic‘][‘name‘] as $k => $v)
                {
                    $pics[] = array(
                        ‘name‘ => $v,
                        ‘type‘ => $_FILES[‘pic‘][‘type‘][$k],
                        ‘tmp_name‘ => $_FILES[‘pic‘][‘tmp_name‘][$k],
                        ‘error‘ => $_FILES[‘pic‘][‘error‘][$k],
                        ‘size‘ => $_FILES[‘pic‘][‘size‘][$k],
                    );
                }
                //var_dump($pics);die();
                $_FILES = $pics;    //把处理好的数组赋给$_FILES,因为uploadOne函数是在$_FILES中获取图片的
                $gpModel = M(‘goods_pic‘);
                //循环每个上传
                foreach ($pics as $k => $v)
                {
                    if($v[‘error‘] == 0)
                    {
                        $ret = uploadOne($k, ‘Goods‘, array(
                            array(650, 650),
                            array(350, 350),
                            array(50, 50),
                        ));
                        //var_dump($ret);die();
                        if($ret[‘ok‘] == 1)
                        {
                            $gpModel->add(array(
                                ‘pic‘ => $ret[‘images‘][0],
                                ‘big_pic‘ => $ret[‘images‘][1],
                                ‘mid_pic‘ => $ret[‘images‘][2],
                                ‘sm_pic‘ => $ret[‘images‘][3],
                                ‘goods_id‘ => $id,
                            ));
                        }
                    }
                }
            }
            /************处理会员价格****************/
            $mp = I(‘post.member_price‘);
            $mpModel = M(‘member_price‘);
            //先删除原来的会员价格
            $mpModel->where(array(
                ‘goods_id‘ => array(‘eq‘, $id),
            ))->delete();
            foreach ($mp as $k => $v)
            {
                $_v = (float)$v;
                //如果设置了会员价格就插入到表中
                if($_v > 0)
                {
                    $mpModel->add(array(
                        ‘price‘ => $_v,
                        ‘level_id‘ => $k,
                        ‘goods_id‘ => $id,
                    ));
                }
            }
                        
            //过滤这个字段    【必须对所有输入内容进行过滤】
            $data[‘goods_desc‘] = removeXSS($_POST[‘goods_desc‘]);
        }