2019-11-07 09:22:06 73次浏览 2条回答 0 悬赏 10 金钱

有老哥给个使用案例的链接吗?全网都搜不到怎么用?

亿速云
  • 回答于 2019-11-07 13:28 举报

    https://api.zhangmoxuan.com/yii-data-arraydataprovider.html

    $query = new Query;
    $provider = new ArrayDataProvider([
        'allModels' => $query->from('post')->all(),
        'sort' => [
            'attributes' => ['id', 'username', 'email'],
        ],
        'pagination' => [
            'pageSize' => 10,
        ],
    ]);
    // get the posts in the current page
    $posts = $provider->getModels();
    
    1 条回复
    回复于 2019-11-10 14:33 回复

    老哥,是ActiveDataFilter的用法,不是array

  • 回答于 2019-11-07 16:44 举报
    $filter = new ActiveDataFilter([
        'searchModel' => 'app\models\PostSearch'
    ]);
    
    $filterCondition = null;
    
    // 您可以从任何来源加载过滤器。例如:
    // 如果你更喜欢请求体中的 JSON,
    // 使用 Yii::$app->request->getBodyParams() 如下:
    if ($filter->load(\Yii::$app->request->get())) { 
        $filterCondition = $filter->build();
        if ($filterCondition === false) {
            // Serializer would get errors out of it
            return $filter;
        }
    }
    
    $query = Post::find();
    if ($filterCondition !== null) {
        $query->andWhere($filterCondition);
    }
    
    return new ActiveDataProvider([
        'query' => $query,
    ]);
    

    来自 权威指南 https://www.yiiframework.com/doc/guide/2.0/zh-cn/output-data-providers

    2 条回复
    回复于 2019-11-10 14:32 回复

    我感觉此处的ActiveDataFilter只起了一个模型的load作用,只是给query添加了一个where条件,最终还是交给了ActiveDataProvider,我感觉这个filter没啥作用,因为不用它的话,下面的代码也能实现:

    public function search($params)
        {
            //params是get的参数
            $query = Post::find();
    
            $dataProvider = new ActiveDataProvider([
                'query' => $query,
            ]);
            $this->load($params);
    
            if (!$this->validate()) {
                return $dataProvider;
            }
            return $dataProvider;
        }
    
    回复于 2019-11-10 14:37 回复

    gii自带的那套就已经有组装where条件的代码了,我随便找了一个表生成的代码案例

    public function search($params)
        {
            $query = Bargain::find();
    
            // add conditions that should always apply here
    
            $dataProvider = new ActiveDataProvider([
                'query' => $query,
            ]);
    
            $this->load($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,
                'member_id' => $this->member_id,
                'sub_order_id' => $this->sub_order_id,
                'order_id' => $this->order_id,
                'rule_id' => $this->rule_id,
                'price' => $this->price,
                'balance' => $this->balance,
                'status' => $this->status,
                'task_status' => $this->task_status,
                'create_time' => $this->create_time,
                'modify_time' => $this->modify_time,
                'limit_time' => $this->limit_time,
                'finish_time' => $this->finish_time,
                'company_id' => $this->company_id,
                'self_balance' => $this->self_balance,
                'friends_balance' => $this->friends_balance,
            ]);
    
            $query->andFilterWhere(['like', 'address', $this->address])
                ->andFilterWhere(['like', 'bn', $this->bn])
                ->andFilterWhere(['like', 'sub_bn', $this->sub_bn])
                ->andFilterWhere(['like', 'cancel_reason', $this->cancel_reason]);
    
            return $dataProvider;
        }
    
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