小编aro*_*hev的帖子

现在我的应用程序正在使用gridview列出所有信息,并且它也有分页.当用户单击分页编号然后单击编辑然后保存.它将用户重定向到查看页面.我想做什么来将用户重定向到上一页(带分页号的网址).

yii\bootstrap\BootstrapAsset没有加载bootstrap.js,像"模态"和其他元素不起作用.

class AppAsset extends AssetBundle {
    public $basePath = '@webroot';

    public $baseUrl = '@web';

    public $css = [    
        /* theme */
        'css/site.css',

        /* jasny bootstrap */
        'public/jasny/css/jasny-bootstrap.min.css',

        /* font awesome */
        'public/font-awesome-430/css/font-awesome.min.css',

        /* font roboto */
        'public/fonts/roboto/roboto.css',

        /* Data Tables */
        'public/datatables/extensions/integration/bootstrap/3/dataTables.bootstrap.css',  
    ];

    public $js = [    
        /* jasny bootstrap  */
        'public/jasny/js/jasny-bootstrap.min.js',

        /* Data Tables  */
        'public/datatables/datajs.js',
        'public/datatables/media/js/jquery.dataTables.min.js',
        'public/datatables/extensions/integration/bootstrap/3/dataTables.bootstrap.js',               
    ];

    public $depends = [
        'yii\web\YiiAsset',
        'yii\bootstrap\BootstrapAsset',
    ];    
}

这是图书馆的屏幕,bootstrap.js在那里缺失.

我想在不使用composer的情况下使用Yii2 Framework手动安装Select 2扩展小部件.

我完成了以下步骤,但它不起作用.

1)添加yii2-widget-select2到vendor/yii-soft

2)在我的代码中添加了以下代码yii-soft/extensions.php:

'yiisoft/yii2-widget-select2' => array(
    'name' => 'yiisoft/yii2-widget-select2',
    'version' => '2.0.3.0',
    'alias' =>
    array(
        '@yii/kartik' => $vendorDir . '/yiisoft/yii2-widget-select2',
    ),
),

3)以视图形式添加显示:

use kartik\select2\Select2;

<?php echo Select2::widget([
    'model' => $model,
    'attribute' => 'state_2',
    'data' => $data,
    'options' => ['placeholder' => 'Select a state ...'],
    'pluginOptions' => [
        'allowClear' => true,
    ],
]); ?>

它显示以下错误:

PHP致命错误 - yii\base\ErrorException.找不到类'kartik\select2\Select2'

如何将此sql转换为活动记录查询

SELECT * FROM `base_twitter` WHERE id NOT IN (SELECT base_id from base_followers)

有没有办法重定向到Yii 2中的行为方法登录以外的页面？

我的行为方法内容:

public function behaviors()
{
    return [
        'verbs' => [
            'class' => VerbFilter::className(),
            'actions' => [
                'delete' => ['post'],
            ],
        ],
        'access' => [
            'class' => AccessControl::className(),
            'only' => [ 'create','update' ],
            'rules' => [
                [
                    'allow' => true,
                    'actions' => [ 'create'],
                    'roles' => ['@'],
                ],
                [
                    'allow' => true,
                    'actions' => ['logout'],
                    'roles' => ['?'],
                ],
            ],
        ],
    ];
}

但它重定向到登录.我需要指定另一个重定向页面或调用:

throw new \yii\web\HttpException(403, 'The requested Item could not be found.');

我想弄清楚是否有可能在highcharts的实际饼图中显示每个饼图的百分比？我的意思是这样的例子:

https://developers.google.com/chart/interactive/docs/gallery/piechart

我有三个数据库表:

产品(id,名称)

product_has_adv(产品,优势,排序,重要)

优势(身份证,文字)

在ProductModel中我定义了这个:

public function getAdvantages()
    {
        return $this->hasMany(AdvantageModel::className(), ['id' => 'advantage'])
            ->viaTable('product_has_advantage', ['product' => 'id']);
    }

我毫无问题地获得了优势.

但是现在我需要添加一个product_has_advantage.important = 1 clausel,并通过product_has_advantage-table中的sort-columen对优势进行排序.

我如何以及在哪里实现它？

我似乎无法理解战略模式提供的优势.请参阅下面的示例.

//Implementation without the strategy pattern
class Registry {

    public function Func1(){
         echo 'called function 1';
    }

    public function Func2(){
         echo 'called function 2';
    }

}

$client = new Registry();
$client->Func1();
$client->Func2();

//Implementation with strategy pattern
interface registry {
     public function printMsg();
}

class Func1 implements registry {
     public function printMsg(){
         echo 'called function 1';
    }
}

class Func2 implements registry {
     public function printMsg(){
         echo 'called function 2';
    }
}

class context {

      public function printMsg(Registry $class){
          $class->printMsg();
      } …

我正在使用Yii2做一个小项目.

假设我在视图中具有相同的布局(页眉,页脚)(例如site),除了login.php在此视图中的a.我想在此文件中使用不同的页眉/页脚.我该怎么做才能从此视图文件中删除页眉/页脚.

我只能在不同的视图中更改布局.是否可以在视图的单个文件中更改布局？

我试图运行yii migrate,但它显示以下错误:

create table news-cate ...Exception: SQLSTATE[42000]: Syntax error or access violation: 1075 Incorrect table definition; there can be only one auto column and it must be defined as a key
The SQL being executed was: CREATE TABLE `news-cate` (
        `news-id` int(11) NOT NULL AUTO_INCREMENT PRIMARY KEY,
        `cate-id` int(11) NOT NULL AUTO_INCREMENT PRIMARY KEY

这是我的代码:

class m150821_083020_create_newscate_table extends Migration
{
    public function safeUp()
    {
        $this->createTable('news-cate', [
            'news-id' => $this->primaryKey(),
            'cate-id' => $this->primaryKey(),
        ]);
        $this->addForeignKey("fk_news_cate_nid", "news-cate", "news-id", "news", "id", …