<?php
namespace Admin\Controller;
use Common\Controller\AdminController;
class SliderController extends AdminController {
    public function __construct(){
        parent::__construct();
    }
    
    public function index(){
        $count = M('Slider')->count();
        //分页
        $Page = new \Think\Page($count);
        $show = $Page->show();
        $list = M('Slider')->order('slider_id desc')->limit($Page->firstRow.','.$Page->listRows)->select();
        $this->assign('page',$show);
        $this->assign('list',$list);
        $this->display();
    }
    
    public function edit(){
        $step = I('step','');
        $sliderId = I('slider_id','');
        if (empty($step)){
            $info = array();
            if (!empty($sliderId)){
                $info = M('Slider')->where(array('slider_id'=>$sliderId))->find();
            }
            $this->assign('info',$info);
            $this->display();
        }else if($step==2){
            $saveData =[
                'link_url'=>I('link_url',''),
                'slider_sort'=>I('slider_sort','0'),
                'slider_pic'=>I('slider_pic',''),
            ] ;
            if (empty($saveData['slider_pic'])){
                $this->error('Banner图片不能为空');
            }
            if ($sliderId){
                M('Slider')->where(array('slider_id'=>$sliderId))->save($saveData);
            }else{
                $saveData['operate_dt'] = time();
                M('Slider')->add($saveData);
            }
            $this->success('操作成功','/admin/slider/index');
        }
    }
    
    //删除
    public function del(){
        $sliderId = I('slider_id','');
        M('Slider')->where(array('slider_id'=>$sliderId))->delete();
        $this->success('操作成功','/admin/slider/index');
    }
    
    public function upload(){
        $upload = new \Think\Upload();// 实例化上传类
        $upload->maxSize = 10485760;// 设置附件上传大小
        $upload->exts = array('jpg', 'gif', 'png', 'jpeg');// 设置附件上传类型
        $upload->rootPath = './Uploads/'; // 设置附件上传根目录
        $upload->savePath = ''; // 设置附件上传（子）目录
        // 上传文件
        $info = $upload->upload();
        if (!$info) {// 上传错误提示错误信息
            //$this->error($upload->getError());
            $this->ajaxReturn(['code' => 1, 'msg' => $upload->getError()]);
        } else {// 上传成功 获取上传文件信息
            $file = array_pop($info);
            $filePath = C('WEB_HOST').'/Uploads/'.$file['savepath'].$file['savename'];
            $this->ajaxReturn(['code' => 0, 'info' => '', 'path' => $filePath]);
        }
        
    }
}