訪問Yii2中的數據

我是Yii2框架的新手，我現在試圖使用關係訪問Listview中的數據。有人可以解釋爲什麼我的代碼不工作。我想找到一個屬於文檔的標籤。訪問Yii2中的數據

這裏是我的數據庫的截圖：

這裏是我的關係：

public function getTags() { 
    return $this->hasMany(Tag::className(), ['id' => 'tag_id']) 
        ->viaTable('tbl_document_tag', ['document_id' => 'id']); 
}

這裏是我的控制器：

public function actionTag() { 
    $model = new Search(); 
    $tag = Yii::$app->getRequest()->getQueryParam('tag'); 

    //Documents 
    $documentModel = new Document; 
    $documentSearch = $model->searchDocumentsByTag($documentModel, $tag); 

    return $this->render('results', [ 
     'model' => $model, 
     'documentSearch' => $documentSearch, 
     'documentModel' => $documentModel 
    ]); 
}

這是我的觀點：

public function searchDocumentsByTag($documentsModel, $keyword) { 
    $query = Document::find() 
      ->with('tags') 
      ->andFilterWhere([ 
     'or', 
     ['like', 'tags.state', 1], 
     ['like', 'tags.slug', $keyword], 
    ]); 

    $dataProvider = new ActiveDataProvider([ 
     'query' => $query, 
    ]); 
    return $dataProvider;

我得到以下錯誤：

Database Exception – yii\db\Exception

SQLSTATE[42S22]: Column not found: 1054 Unknown column 'tags.state' in 'where clause' The SQL being executed was: SELECT COUNT(*) FROM tbl_document WHERE (tags . state LIKE '%1%') OR (tags . slug LIKE '%steekwoord%') Error Info: Array ( [0] => 42S22 1 => 1054 [2] => Unknown column 'tags.state' in 'where clause' ) ↵ Caused by: PDOException

SQLSTATE[42S22]: Column not found: 1054 Unknown column 'tags.state' in 'where clause'

來源

2016-06-10 atze de groot

你的代碼不工作？你收到什麼錯誤？您需要描述您嘗試實現的結果 – mikeyq6

嘗試使用此類結果，例如'['like'，'tbl_tag.state'，1]，['like'，'tbl_tag.slug'，$ keyword]' – vishuB

您只需要使用joinWith()代替with()：

This method allows you to reuse existing relation definitions to perform JOIN queries. [...] Note that because a JOIN query will be performed, you are responsible to disambiguate column names.

例如：

$query = Document::find() 
    ->joinWith('tags tags') 
    ->andFilterWhere([ 
     'or', 
     ['like', 'tags.state', 1], 
     ['like', 'tags.slug', $keyword], 
    ]);

來源

2016-06-10 13:41:07 soju

Thanks，It's工作中：） –

訪問Yii2中的數據

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