Yii2-elasticsearch 怎么用啊？

<code>
$posts = Post::find()->all();
 
$postElastic = new PostElastic();
$postElastic->attributes = [&#39;name&#39; => $postElastic[0]->name];
</code>

<code>
class Contents extends \yii\elasticsearch\ActiveRecord
{   
    public function attributes()
    {
        return [&#39;id&#39;, &#39;title&#39;, &#39;slug&#39;, &#39;created_at&#39;, &#39;text&#39;, &#39;type&#39;, &#39;status&#39;];
    }
 
}
</code>

composer require --prefer-dist yiisoft/yii2-elasticsearch:"~2.1.0"

return [
     //.... 
    'components' => [
         'elasticsearch' => [
             'class' => 'yii\elasticsearch\Connection' ,
             'nodes' => [
                [ 'http_address' => '127.0.0.1:9200' ],
                 // 如果你有集群，配置更多主机
            ],
            'dslVersion' => 7 , // 默认为 5
        ],
    ]
];

<?php
 
namespace app\models\es_models;
 
use yii\elasticsearch\ActiveRecord;
 
 
class Document extends ActiveRecord
{
    public static function index()
    {
        return &#39;document&#39;;//设置文档名称，不设置默认带s结尾
    }
 
    //指定文档类型
    public static function type()
    {
        return &#39;_doc&#39;;
    }
 
    //指定文档属性
    public function attributes()
    {
        return [&#39;id&#39;, &#39;title&#39;,&#39;content&#39;,&#39;status&#39;,&#39;author&#39;];
    }
 
    public static function getMapping()
    {
        return [
                    &#39;properties&#39; => [
                        &#39;id&#39;=> [&#39;type&#39; => &#39;integer&#39;],
                        &#39;title&#39;=> [&#39;type&#39; => &#39;text&#39;,&#39;analyzer&#39;=>&#39;ik_smart&#39;],
                        &#39;content&#39;=> [&#39;type&#39; => &#39;text&#39;,&#39;analyzer&#39;=>&#39;ik_smart&#39;],
                        &#39;status&#39;=> [&#39;type&#39; => &#39;integer&#39;],
                        &#39;author&#39;=> [&#39;type&#39; => &#39;text&#39;,&#39;analyzer&#39;=>&#39;ik_smart&#39;],
                    ]
               ];
    }
 
    /**
     * Create this model&#39;s index
     */
    public static function createIndex()
    {
        $db = static::getDb();
        $command = $db->createCommand();
        $command->createIndex(static::index(), [
            &#39;mappings&#39; => static::getMapping(),
        ]);
    }
 
    public function checkIndex()
    {
        $db = self::getDb();
        $command = $db->createCommand();
        if (!$command->indexExists(self::index())) {
            return false;
        }else{
            return true;
        }
    }
 
}

<?php
 
namespace app\controllers;
 
use app\models\es_models\Document;
use yii\web\Controller;
use Yii;
 
class EsSearchController extends Controller
{
    //创建Index
    public function actionCreateIndex()
    {
        $es = new Document();
        if(!$es->checkIndex()){
            $es::createIndex();
            echo &#39;创建成功&#39;;
            die;
        }
        echo &#39;已创建&#39;;die;
    }
 
    //搜索
    public function actionEsSearch()
    {
        $page = Yii::$app->request->get(&#39;page&#39;) ?: 1;
        $page_size = Yii::$app->request->get(&#39;pageSize&#39;) ?: 10;
        $keyword = Yii::$app->request->get(&#39;keyword&#39;) ?: &#39;&#39;;
        $offset = ($page - 1) * $page_size;
        $es = new Document();
        //此处组装query有点小坑，可以根据es文档把json转为数组，不然容易出错
        //此处的条件相当于where status in (1,2) and (title like &#39;%keyword%&#39; or content like &#39;%keyword%&#39;)
        $query = [
            &#39;bool&#39; => [
                &#39;must&#39; => [
                    [
                        &#39;terms&#39; => [
                            &#39;status&#39; => [1,2],
                        ],
                    ],
                    [
                        &#39;bool&#39; => [
                            &#39;should&#39; => [
                                [
                                    &#39;match&#39; => [
                                        &#39;title&#39; => [
                                            &#39;query&#39; => $keyword,
                                            &#39;boost&#39; => 1, //权重
                                        ],
                                    ]
                                ],
                                [
                                    &#39;match&#39; => [
                                        &#39;content&#39; => [
                                            &#39;query&#39; => $keyword,
                                            &#39;boost&#39; => 1, //权重
                                        ],
                                    ]
                                ],
                            ],
                        ],
                    ],
                ],
            ],
        ];
 
        $hightlight = [
            "pre_tags" => [&#39;<span class="text-danger">&#39;],//要高亮的颜色css的class
            "post_tags" => [&#39;</span>&#39;],
            "fields" => [
                &#39;content&#39; => new \stdClass(),
                &#39;title&#39; => new \stdClass()
            ]
        ];
        $es_data = $es::find()
            ->source([&#39;id&#39;, &#39;title&#39;, &#39;content&#39;, &#39;status&#39;,&#39;author&#39;])
            ->query($query)
            ->highlight($hightlight)
            ->offset($offset)
            ->limit($page_size)
            ->asArray()
            ->all();
        echo json_encode($es_data);//打完收工
        exit;
    }
 
    //搞点数据测试
    public function actionSetEsContent()
    {
        $Document = new Document();
        $Document->id = 1; // setting primary keys is only allowed for new records
        $Document->title = &#39;大佬&#39;; // attributes can be set one by one
        $Document->content = &#39;大佬6666&#39;;
        $Document->status = 1;
        $Document->author = &#39;牛皮&#39;;
        $res = $Document->save();
    }
}