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Correction status：qualified
Teacher's comments：
Collection
Collection
<?php
/**
* Created by PhpStorm.
* User: Administrator
* Date: 2018/5/25 0025
* Time: 下午 1:53
*/
namespace app\index\controller;
use think\Container;
use app\index\model\EmpModel;
use think\Request;
class Emp extends Container{
// public function instance(EmpModel $empModel){//依赖注入 那是 方法里边的EmpModel 自动实例化了。。 instance 方法名报错
public function getData(EmpModel $empModel){//依赖注入 那是 方法里边的EmpModel 自动实例化了。。 这个正常
// $empModel = new EmpModel();//可以内部直接实例化
dump($empModel->getName());
//新增一条记录
$empModel->name='QB';
$empModel->grade=1;
$empModel->email='admin@qq.com';
$empModel->salary='1000 ';
$empModel->save();
// return "新增成功= ".$empModel->getLastInsID();
return "新增成功= ".$empModel->id;
}
//模型查询
public function query(){
//1单条记录 get（主键/闭包）
//闭包就是一个匿名回调函数
/* $emp = EmpModel::get(38);
dump($emp);//dump返回的是经过处理的数组
\var_dump($emp);//默认数据源返回的是个对象
echo $emp->name;
echo "<hr>";*/
/* $emp_1 = EmpModel::get(function ($query){
$query->where('id',100);
});
dump($emp_1);*/
/*$emp_2 = EmpModel::where('grade',1)
->where("salary",">","500")
->select();
dump($emp_2,true,"find");*/
/* $emp_3=EmpModel::all([100,250,5247,1475,2658,41447,1475]);
dump($emp_3,true,"all");
foreach ($emp_3 as $item) {//貌似tp内部处理了 这里用数组获取字段 和 用对象获取字段效果一样
echo "姓名".$item['name']."<br>";
echo "等级".$item->grade."<br>";
echo "邮箱".$item->email."<br>";
echo "工资".$item->salary."<hr>";
}*/
//采用闭包来实现将请求变量注入到闭包条件中
//$this->request:请求对象
// $request = new Request();
$grade = $this->request->param('grade')?:2;
$salary = $this->request->param('salary')?:500;
// $emp_4 = EmpModel::all(function ($query)/* use ($grade,$salary)*/{
// $query->where('grade','<',/*$grade*/2)->where('salary','>',/*$salary*/500);
// });
// dump($emp_4);
}
public function getAll(Request $request){
// $grade = $this->request->param('grade')?:2;
// $salary = $this->request->param('salary')?:500;
// $grade = $request->param('grade') ? : 1;//门脸用不了了
// $salary = $request->param('salary')?:500;
$grade = $request->param('grade') ? : 1;//门脸用不了了
$salary = $request->param('salary')?:500;
$emp_4 = EmpModel::all(function ($query) use ($grade,$salary){
$query->where('grade','>',$grade)->where('salary','>',$salary);
});
dump($emp_4);
}
public function update(Request $request){//更新数据
$id = $request->param('id');
$name = $request->param('name');
$salary = $request->param('salary');
//方法 一：
// $empUpdate = EmpModel::where('id',$id)
// ->find();
// dump($empUpdate);
// $empUpdate->name=$name;
// $empUpdate->save();//这种方式不太推荐使用 可以直接使用 update静态方法
// dump($empUpdate);
//方法 二：直接调用update方法
// $data=[
// 'name'=>$name
// ];
// $where=[
// 'id'=>$id
// ];
// $emp_update_result = EmpModel::update($data,$where);
// dump($emp_update_result);
//方法三;使用闭包更新
$data = [
'salary'=> \think\Db::raw('salary+500')
];
$emp_add_salary = EmpModel::update($data,function ($query) use ($salary){
$query->where('salary','>',$salary);
});
dump($emp_add_salary);
}
public function AddData(Request $request){//新增数据，可以用静态方法create 或者 用 save方法 上边有演示
$name = $request->param('name');
$grade = $request->param('grade');
$email = $request->param('email');
$salary = $request->param('salary');
$data = [
'name'=>$name,
'grade'=>$grade,
'email'=>$email,
'salary'=>$salary
];
$field=[//默认允许新增的字段
'name',
'grade',
// 'email',
'salary'
];
$emp_add_result = EmpModel::create($data,$field);
dump($emp_add_result);
}
public function deleteData(Request $request){
// start
// EmpModel::destroy(74812);//根据主键删除数据 内部主键可以是个数组
/**
* 执行顺序
* [ DB ] CONNECT:[ UseTime:0.003000s ] mysql:host=127.0.0.1;dbname=work;charset=utf8
* [ SQL ] SHOW COLUMNS FROM `emp` [ RunTime:0.027002s ]
* [ SQL ] SELECT * FROM `emp` WHERE `id` = 74812 [ RunTime:0.000000s ]
* [ SQL ] DELETE FROM `emp` WHERE `id` = 74812 [ RunTime:0.001000s ]
*/
// end
// start
$id = $request->param('id');
//删除推荐使用闭包删除
EmpModel::destroy(function ($query) use ($id){//这里跟更新一样可以接受参数
$query->where('id',$id);
});
/**
* [ DB ] CONNECT:[ UseTime:0.001000s ] mysql:host=127.0.0.1;dbname=work;charset=utf8
* [ SQL ] SHOW COLUMNS FROM `emp` [ RunTime:0.029002s ]
* [ SQL ] SELECT * FROM `emp` WHERE `id` = 74813 [ RunTime:0.000000s ]
* [ SQL ] DELETE FROM `emp` WHERE `id` = 74813 [ RunTime:0.000000s ]
*/
// end
// start
// EmpModel::where('id',$id)->delete();//使用查询构造器删除数据
/**
* [ DB ] CONNECT:[ UseTime:0.010001s ] mysql:host=127.0.0.1;dbname=work;charset=utf8
* [ SQL ] SHOW COLUMNS FROM `emp` [ RunTime:0.032001s ]
* [ SQL ] DELETE FROM `emp` WHERE `id` = 74810 [ RunTime:0.000000s ]
*/
// end
}
public function softDelete(Request $request){
$id = $request->param('id');
EmpModel::destroy($id);
/**
* [ DB ] CONNECT:[ UseTime:0.003000s ] mysql:host=127.0.0.1;dbname=work;charset=utf8
* [ SQL ] SHOW COLUMNS FROM `emp` [ RunTime:0.031002s ]
* [ SQL ] SELECT * FROM `emp` WHERE `id` = 74819 [ RunTime:0.001000s ]
* [ SQL ] UPDATE `emp` SET `delete_time` = 1527324100 WHERE `id` = 74819 [ RunTime:0.000000s ]
*/
}
public function getBigId(){
$res = EmpModel::where('id','>','74794')->select();
dump($res);
$resSoftDelete =EmpModel::withTrashed()->where('id','>','74794')->select();
dump($resSoftDelete);
}
public function restoreData(){
$where = [
'id'=>74819
];
// $emp = EmpModel::onlyTrashed()->find();
// $emp->restore();
$emp = new EmpModel();
$emp->restore($where);
}
}点击 "运行实例" 按钮查看在线实例
<?php
/**
* Created by PhpStorm.
* User: Administrator
* Date: 2018/5/25 0025
* Time: 下午 12:03
*/
namespace app\index\model;
use think\Model;
use think\model\concern\SoftDelete;
class EmpModel extends Model{
use SoftDelete;//(⊙o⊙)…这个东西实在模型中引入的。
//设置数据表名
protected $table = 'emp';
//设置主键 主键默认是id 如果 数据表中不是的话 需要特殊指定
protected $pk = 'id';
//设置删除时间字段名
protected $deleteTime = 'delete_time';
protected $defaultSoftDelete=0;
}点击 "运行实例" 按钮查看在线实例
