tp5中的模型关联

controller调用model层：

利用model对数据进行存储

1. 最简单的方法：

public function testModel(){    $log = new Log;    $log->user_id = 123;    $log->ip = '10.10.10.10';    $log->save();}

2. 数组的方法：

$logArr['user_id'] = 1123123;$logArr['ip'] = '127.0.0.1';if($result = Log::create($logArr))    echo "<meta charset='utf-8'>   添加成功";

3.批量新增

$log = new Log;$list = [    ['user_id' => 123, 'ip' => '192.168.1.100'],    ['user_id' => 456, 'ip' => '192.168.1.101']];if($log->saveAll($list))    echo "<meta charset='utf-8'> 日志批量新增成功";

利用model对数据进行查询

1. 查询一组语句

$log = Log::get(1);echo $log['ip'];

2. 根据某个条件查询数据getByXxxx()方法

$log = Log::getByUserId('1');echo $log['ip'];

3. 根据数组条件查询

$log = Log::get(['user_id'=>1,'ip'=>'1.1.1.1']);//不怎么好使$log = Log::where('user_id', 1)->find();$log = Log::where(['user_id'=>1,'ip'=>'1.1.1.1'])->find();

4. 查询多个数据

$log = Log::all();$log = Log::all(['user_id'=>1]);$log = Log::where('id', '<=', 3)->select();print_r($log);

利用model对数据进行更新

1.对数据查询出来的数据进行更新数据

$log = Log::get(1);$log->user_id = 3;$log->ip = '10.1.11.11';if(false != $log->save())    return "更新用户成功";else    return $log->getError();

2.自己定义是数据更新操作

$logArr['user_id'] = 666;$logArr['ip'] = '10.10.11.11';Log::update($logArr, ['id' => 2]);

利用model对数据进行删除

$log = Log::get(146);$log->delete();