Maison > Article > développement back-end > Code d'ajout, de suppression, de modification et de vérification des opérations dans la couche de données TP
Le contenu de cet article concerne le code pour ajouter, supprimer, modifier et vérifier les opérations sur la couche de données TP. Il a une certaine valeur de référence. Les amis dans le besoin peuvent s'y référer.
Couche de données Thinkphp (couche modèle), explication super détaillée des opérations d'ajout, de suppression, de modification et de vérification ! Jetons un coup d'œil ci-dessous !
<?php namespace Home\Model; use Think\Model; class YmdModel extends Model{ public function __construct(){ $this->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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