abstract:<?php /** * Created by PhpStorm. * User: 普通用户 * Date: 2019/7/24 * Time: 21:22 */ namespace Util; use think\Db;
<?php /** * Created by PhpStorm. * User: 普通用户 * Date: 2019/7/24 * Time: 21:22 */ namespace Util; use think\Db; class SysDb { // 访问表名,初始化条件属性 public function table($table){ $this->where=[]; $this->field='*'; $this->order=''; $this->limit=0; $this->table=$table; return $this; } // 查询的字段默认为所有 public function field($field='*'){ $this->field=$field; return $this; } // 查询记录数量 public function limit($limit){ $this->limit=$limit; return $this; } //查询结果排序 public function order($order){ $this->order=$order; return $this; } // 查询条件 public function where($where=[]){ $this->where=$where; return $this; } // 查找一条记录 public function item(){ return Db::name($this->table)->field($this->field)->where($this->where)->find(); } // 查找多条记录 public function lists(){ $query=Db::name($this->table)->field($this->field)->where($this->where); $this->limit && $query = $query->limit($this->limit); $this->order && $query = $query->order($this->order); return $query->select(); } // 自定义索引 public function cates($index){ $query=Db::name($this->table)->field($this->field)->where($this->where); $this->limit && $query = $query->limit($this->limit); $this->order && $query = $query->order($this->order); $lists=$query->select(); if(!$lists){ return $lists; } $result=[]; foreach($lists as $key=>$value){ $result[$value[$index]]=$value; } return $result; } // 查询结果总数 public function count(){ return Db::name($this->table)->where($this->where)->count(); } //分页 public function pages($pageSize=10){ $total=Db::name($this->table)->where($this->where)->count(); $query=Db::name($this->table)->field($this->field)->where($this->where); $this->order && $query=$query->order($this->order); $data=$query->paginate($pageSize,$total); return array('total'=>$total,'lists'=>$data->items(),'pages'=>$data->render()); } // 添加记录 public function insert($data){ return Db::name($this->table)->insertGetId($data); } // 添加多条记录 public function insertAll($data){ return Db::name($this->table)->insertAll($data); } // 删除操作 public function delete(){ return Db::name($this->table)->where($this->where)->delete(); } // 自减操作 public function setDec($index,$value=1){ $res=Db::name($this->table)->where($this->where)->setDec($index,$value); return $res; } }
Correcting teacher:查无此人Correction time:2019-07-25 13:06:06
Teacher's summary:完成的不错。多看thinkphp的文档,多练习功能,很快就能上手。继续加油。