通过 Table Yii2 搜索模型

Question

我有三个 tables:

user
game
user_game

game.user_id - 创建游戏的用户。 Table user_game 描述了 ADDED 游戏未创建的用户，它有 user_id 和 game_id 字段。我有 GameSearch 模型，它应该搜索当前用户添加的游戏。这里搜索方法；

public function search($params)
{
    // HERE I SHOULD GET ONLY GAMES WHICH ADDED BY USER via table user_game 
    $query = Game::find();

    $dataProvider = new ActiveDataProvider([
        'query' => $query,
        'sort' => [
            'defaultOrder' => [
                'sorting' => SORT_DESC,
            ]
        ],
    ]);

    if (!empty($params['pageSize'])) {
        $dataProvider->pagination->pageSize = $params['pageSize'];
    }

    $this->load($params);

    if (!$this->validate()) {
        // uncomment the following line if you do not want to return any records when validation fails
        // $query->where('0=1');
        return $dataProvider;
    }

    // grid filtering conditions
    $query->andFilterWhere([
        'id' => $this->id,
        'user_id' => $this->user_id,
        'visible' => $this->visible,
        'sorting' => $this->sorting,
        'created_at' => $this->created_at,
        'updated_at' => $this->updated_at,
    ]);

    $query->andFilterWhere(['like', 'name', $this->name])
        ->andFilterWhere(['like', 'slug', $this->slug])
        ->andFilterWhere(['like', 'image', $this->image])
        ->andFilterWhere(['like', 'description', $this->description])
        ->andFilterWhere(['>=', 'created_at', $this->date_from ? $this->date_from : null])
        ->andFilterWhere(['<=', 'created_at', $this->date_to ? $this->date_to : null])
        ->andFilterWhere(['>=', 'updated_at', $this->date_upd_from ? $this->date_upd_from : null])
        ->andFilterWhere(['<=', 'updated_at', $this->date_upd_to ? $this->date_upd_to : null]);

    return $dataProvider;
}

所以我需要通过 table user_game 获取游戏列表，其中 user_id = 当前用户 ID，game_id = 游戏 ID。请帮忙。

Answer 1

首先你需要在 Game model 中首先有两个关系，它将从 user_game table (model) 中获取一对多的数据，然后在模型 user_game 中你需要写从 user table (model)

获取用户的关系

$query->joinWith(['userGame', 'userGame.user']);

->andFilterWhere(['=', 'tbl_user.id', Yii::app()->user->id])

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