abstract:<?php namespace util; use think\Db; class SysDb { //获取表 public function table($table) { $this->where =&n
<?php namespace util; use think\Db; class SysDb { //获取表 public function table($table) { $this->where = ''; $this->order = ''; $this->limit = 0; $this->field = '*'; $this->table = $table; return $this; } //获取字段 public function field($field='*') { $this->field = $field; return $this; } //获取排序 public function order($order='') { $this->order = $order; return $this; } //获取数据条数 public function limit($limit = '') { $this->limit = $limit; return $this; } //获取查询条件 public function where($where = []) { $this->where = $where; return $this; } //获取单条记录 public function item() { return Db::name($this->table)->field($this->field)->where($this->where)->find(); } //获取多条记录 public function lists() { $query = Db::name($this->table)->field($this->field)->where($this->where); $this->order && $query->order($this->order); $this->limit && $query->limit($this->limit); return $query->select(); } //查询指定索引 public function cates($index) { $query = Db::name($this->table)->field($this->field)->where($this->where); $this->order && $query->order($this->order); $this->limit && $query->limit($this->limit); $res = $query->select(); $data = []; foreach($res as $v){ $data[$v[$index]] = $v; } return $data; } //查询分页数据 public function pages($pageSize=10) { $total = Db::name($this->table)->where($this->where)->count(); $query = Db::name($this->table)->field($this->field)->where($this->where); $this->order && $query->order($this->order); $pageObj = $query->paginate($pageSize,$total); return ['total'=>$total,'data'=>$pageObj->items(),'pages'=>$pageObj->render()]; } } ?>
Correcting teacher:查无此人Correction time:2019-02-27 09:07:10
Teacher's summary:完成的不错。where条件,最好多加点判断,能剔除数据库注入。继续加油