Code for adding, deleting, modifying and checking operations in the TP data layer-PHP Tutorial-php.cn

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Thinkphp data layer (model layer), super detailed explanation of add, delete, modify and check operations! Let’s take a look below!

dbYimudi = M('yimudi'); $this->dbYimudiUse = M('yimudi_use'); $this->dbYimudiInfo = M('yimudi_info'); $this->dbYimudiCi = M('yimudi_ci'); } //两个表关联查询 public function getYimudiOne($condition,$field){ if (!$condition) { return false; }else{ return $this->dbYimudiUse->table('yimudi_use yu,yimudi y')->where(' yu.yimudi_id = y.yimudi_id'.$condition)->field($field)->find(); } } //统计一个表满足条件的数量 public function getYimudiUseCount($condition){ if (!$condition) { return false; }else{ return $this->dbYimudiUse->where($condition)->count(); } } //求和运算 public function getEchangeYimudiCount($condition){ if (!$condition) { return false; }else{ return $this->dbYimudiUse->table('yimudi_use yu,yimudi y')->where(' yu.yimudi_id = y.yimudi_id'.$condition)->sum('change_num'); } } //(yimud_id分组) public function getExchageByYimudiId($condition,$field){ if (!$condition) { return false; }else{ return $this->dbYimudiUse->table('yimudi_use yu,yimudi_ci yc')->where(' yu.yimudi_id = yc.yimudi_id'.$condition)->field($field)->group('yu.yimudi_id')->select(); } } //更新操作 public function updateYimudiUse($condition,$data){ if (!$condition) { return false; }else{ return $this->dbYimudiUse->where($condition)->save($data); } } //多表连接查询，分页获取数据 public function getYimudiList($condition,$start,$size){ if (!$condition) { return false; }else{ return $this->dbYimudiUse->table('yimudi_use as yu')->join('yimudi as y on yu.yimudi_id = y.yimudi_id', 'left')->join('yimudi_cinema as yc on yu.yimudi_id = yc.cinema_id', 'left')->where($condition)->field($field)->limit($start, $size)->select(); } } //关联两个表满足的数据 public function getYimudiCount($condition){ if (!$condition) { return false; }else{ return $this->dbYimudiUse->table('yimudi_use as yu')->join('yimudi as y on yu.yimudi_id = y.yimudi_id', 'left')->join('yimudi_ci as yc on yu.yimudi_id = yc.yimudi_id', 'left')->where($condition)->count(); } } //获取YIMUDI列表——ajax public function getYimudiListAjax($condition,$start,$size){ if (!$condition) { return false; }else{ return $this->dbYimudiUse->table('yimudi_use as yu')->join('yimudi as y on yu.yimudi_id = y.yimudi_id', 'left')->join('yimudi_ci as yc on yu.yimudi_id = yc.yimudi_id', 'left')->where($condition)->field($field)->limit($start, $size)->select(); } } //获取单条记录 public function getYimudiCiDecription($condition,$file){ if (!$condition) { return false; }else{ return $this->dbYimudiCi->where($condition)->field($field)->find(); } } //分页获取列表 public function getCiYimudiList($condition,$start,$size){ if (!$condition) { return false; }else{ return $this->dbYimudiCiInfo->where($condition)->limit($start, $size)->select(); } } //多表关联查询一条记录 public function getCiYimudiById($condition){ if (!$condition) { return false; }else{ return $this->dbYimudiUse->table('yimudi_use as yu')->join('yimudi as y on yu.yimudi_id = y.yimudi_id', 'left')->join('yimudi_ci as yc on yu.yimudi_id = yc.yimudi_id', 'left')->where($condition)->field($field)->find(); } } }

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