yii 2.0 增删改查 分页 ajax 批删

[php] view plain copy

//关闭csrf    原生代码
public $enableCsrfValidation = false;
添加 接值
$connection = \Yii::$app->db->createCommand()->insert('denglu',$arr)->execute();
查询
$command = \Yii::$app->db->createCommand('SELECT * FROM denglu');
$posts = $command->queryAll();
//删除  接id
$command = \Yii::$app->db->createCommand()->delete('denglu', 'id = '.$id)->execute();
修改  先查询 接值 id
$command = \Yii::$app->db->createCommand("SELECT * FROM denglu where id='$id'");
$post = $command->queryOne();
修改  先接值 修改要的值
$command = \Yii::$app->db->createCommand()->update('denglu', ['name' => $name,'password'=>$password],  'id = '.$id)->execute();
yii2.0
use Yii;
use yii\web\Controller;
use frontend\models\Denglu;
use yii\data\Pagination;      // csrf
<input type="hidden" name="<?= \Yii::$app->request->csrfParam; ?>" value="<?= \Yii::$app->request->getCsrfToken();?>">
//添加
if($re['_csrf-frontend']) {
unset($re['_csrf-frontend']);
//print_r($re);die;
$er1=new Denglu();
//  print_r($er1);die;
$er1->name=$re['name'];
$er1->password=$re['password'];
$er1->save();
}
查询   分页
$re=Denglu::find();
$pagination = new Pagination([
'defaultPageSize' => 2,
'totalCount' => $re->count(),
]);

$list = $re->offset($pagination->offset)
->limit($pagination->limit)
->all();
// print_r($re);die;
return $this->render('list',[
'list' => $list,
'pagination' => $pagination,
]);
}
不带分页查询
$results=goods::find()->asArray()->all();
//        return $this->render("list",["list"=>$results]);
删除
$a=goods::find()->where(["id"=>$id])->one();
$arr=$a->delete();
修改查询
1        $acc=goods::find()->where(["id"=>$id])->asArray()->one();
2        $goods = \Yii::$app->db->createCommand()->update('goods', ["goods_name"=>$arr['goods_name'],"money"=>$arr['money']],"id=".$arr['id'])->execute();
视图层
<?php
use yii\widgets\LinkPager;
?>
<?= LinkPager::widget(['pagination' => $pagination]) ?>
ajax  批删   视图层
<td><input type="checkbox" name="dom" id="ss" value="<?php echo $v['id']?>"/><?php echo $v['id']?></td>
<input type="checkbox" value="批量删除" onclick="check_del();">批量删chu
function check_del(){
var dom=document.getElementsByName('dom');
var str='';
for(var i=0;i<dom.length;i++){
if(dom[i].checked==true){
str=str+','+dom[i].value;
}
}
str=str.substr(1);
// alert(str)
location.href="?r=lianxi/dele&id="+str;
}
控制器  接受批删的id值
$id=\yii::$app->request->get('id');
$sql="delete from shang where id in ($id)";
$a= \Yii::$app->db->createCommand($sql)->execute();
if($a){
return $this->redirect("?r=lianxi/list");
}else{
echo "删出失败";
}

[html] view plain copy

上传图片   加载类
use yii\web\UploadedFile;
$arr=\yii::$app->request->post();
$file = UploadedFile::getInstanceByName('filename');
$path = 'upload';                                        //设置上传文件的路径
$paths = $path.'/'.rand(1,9999).$file;                    //设置上传文件的路径名称(这里的数据进行入库)
$arr['filename']=$paths;
$file->saveAs($paths,true);                               //保存文件
$goods = \Yii::$app->db->createCommand()->insert('goods', $arr)->execute();
if($goods){
return $this->redirect("?r=lianxi/list");
}else{
echo "添加失败";
}
简单的反选全选全不选

<td><input type="checkbox" class="check" name="dom" value="<?php $v['id']?>"/><?php echo $v['id']?></td>
<input type="checkbox" class="quan" value="<?php echo $v['id']?>"/>全选
<input type="checkbox" class="fan" value="<?php echo $v['id']?>"/>全不选
<input type="checkbox" class="bu" value="<?php echo $v['id']?>"/>反选
引进jquery文件 //全选（按钮）
$(function(){
$('.quan').click(function(){
var ids = $('input:checkbox');
$.each(ids,function(i,item){
ids[i].checked=true;
})
})
})
//全不选
$(function(){
$('.fan').click(function(){
var ids=$('input:checkbox');
$.each(ids,function(i,item){
ids[i].checked=false;
})
})
})
//反选
$(function(){
$('.bu').click(function(){
var ids=$('.check');
$.each(ids,function(i,item){
ids[i].checked=!ids[i].checked;
})
})
})