thinkphp 关联查询
有两个表,一个是医院r_hospital,另一个是科室r_department。怎样关联查询,选择完医院之后,科室只显示该医院的科室,而不显示其他医院的了
回复讨论(解决方案) 请贴出你的代码
请贴出你的代码
class roomaction extends action{
public function room(){
$room = m('department');
$h_id = i('get.h_id');
$h_name = i('get.h_name');
print_r($h_id);
print_r($h_name);
$data =$_post['text'];
print_r($data);
if($data !=''){
//执行sql语句(执行like查询,搜索)
$map['name'] = array('like',%$data%);
$list = $room->where($map)->select();
$this->list = $list;
$this->display();
}else{
$map['hospital_id'] = $h_id;
$list = $room->where($map)->select();
$this->assign(list, $list);
$this->display();
}
}
thinkphp 中关联查询(多表查询)可以使用 table() 方法或和join方法,请看示例:1、table()$list = $user->table('user_status stats, user_profile profile')->where('stats.id = profile.typeid')->field('stats.id as id, stats.display as display, profile.title as title,profile.content as content')->order('stats.id desc' )->select();2、join()$user = new model('user');$list = $user->join('right join user_profile on user_stats.id = user_profile.typeid' );3、原生查询$model = new model();$sql = 'select a.id,a.title,b.content from think_test1 as a, think_test2 as b where a.id=b.id '.$map.' order by a.id '.$sort.' limit '.$p->firstrow.','.$p->listrows;$volist = $model->query($sql);