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Yii 2 Models - Class yii\db\Query contains 1 abstract method and must therefore be declared abstract or implement the remaining methods
Вопрос
I am a beginner to YII2. To start of with i have used the Gii extension to generate my model and controller. i have set up my database in the db.php file found in the config folder in the root of my site.
I then used the CRUD generator on that model i previously created in my admin module.
when i now go to the admin module i get this error :
Class yii\db\Query contains 1 abstract method and must therefore be declared abstract or implement the remaining methods (yii\db\QueryInterface::indexBy)
my model :
<?php
namespace app\models;
use Yii;
use yii\base\Model;
use yii\data\ActiveDataProvider;
use yii\db\ActiveRecord;
/**
* This is the model class for table "user".
*
* @property string $id
* @property string $name
* @property string $username
* @property string $pass
* @property string $email
* @property string $user_type
* @property string $date_joined
*
* @property Authassignment $authassignment
* @property Authitem[] $itemnames
*/
class User extends ActiveRecord
{
/**
* @inheritdoc
*/
public static function tableName()
{
return 'user';
}
/**
* @inheritdoc
*/
public function rules()
{
return [
[['user_type'], 'string'],
[['date_joined'], 'required'],
[['date_joined'], 'safe'],
[['name'], 'string', 'max' => 248],
[['username'], 'string', 'max' => 45],
[['pass'], 'string', 'max' => 256],
[['email'], 'string', 'max' => 60],
[['name', 'username', 'password', 'email', 'user_type', 'date_joined'], 'safe'],
];
}
/**
* @inheritdoc
*/
public function attributeLabels()
{
return [
'id' => 'ID',
'name' => 'Name',
'username' => 'Username',
'password' => 'Password',
'email' => 'Email',
'user_type' => 'User Type',
'date_joined' => 'Date Joined',
];
}
/**
* @return \yii\db\ActiveQuery
*/
public function getAuthassignment()
{
return $this->hasOne(Authassignment::className(), ['userid' => 'id']);
}
/**
* @return \yii\db\ActiveQuery
*/
public function getItemnames()
{
return $this->hasMany(Authitem::className(), ['name' => 'itemname'])->viaTable('_authassignment', ['userid' => 'id']);
}
public function scenarios()
{
// bypass scenarios() implementation in the parent class
return Model::scenarios();
}
public function search($params)
{
$query = $this::find();
$dataProvider = new ActiveDataProvider([
'query' => $query,
]);
if (!($this->load($params) && $this->validate())) {
return $dataProvider;
}
$query->andFilterWhere([
'id' => $this->id,
'date_joined' => $this->date_joined,
]);
$query->andFilterWhere(['like', 'name', $this->name])
->andFilterWhere(['like', 'username', $this->username])
->andFilterWhere(['like', 'pass', $this->pass])
->andFilterWhere(['like', 'email', $this->email])
->andFilterWhere(['like', 'user_type', $this->user_type]);
return $dataProvider;
}
}
I have tried to make the class abstract but this gave the error
Cannot instantiate abstract class app\models\User
What am i doing wrong.
Thanks.
EDIT :
I have upgraded my php on the webserver to 5.5.10 and this has fixed this error, i was running V5.4
Решение
Другие советы
It may be solved by updating yii2 framework.
yii.db.Query
uses yii.db.QueryTrait
in which indexBy
method is implemented.
Please compare your Query.php
, QueryTrait.php
and QueryInterface.php
with
https://github.com/yiisoft/yii2/blob/master/framework/db/Query.php
https://github.com/yiisoft/yii2/blob/master/framework/db/QueryTrait.php
https://github.com/yiisoft/yii2/blob/master/framework/db/QueryInterface.php