Question

所以我要在gridview中进行一些调整，其中之一是将gridview显示为空白，并且仅在搜索后显示结果。我知道这是一个不寻常的调整，但这就是我被要求做的。

我不能只评论dataprovider，因为必须设置它。我可以仅凭视图就能做到吗？预先感谢

Answer 1

如果已提交的过滤器参数具有值，则通过添加检验：

$searchModel = new Articles();      
$query = Articles::find();
$loadData = Yii::$app->request->get();
$scope = $searchModel->formName();
$isLoadedAttributes = false;
if(isset($loadData[$scope])){
    foreach($loadData[$scope] as $attributeValue){
        $isLoadedAttributes = $this->isLoadedAttributes || (bool)$attributeValue;
    }
}
if($isLoadedAttributes){
  $query->where('1 = 2');
}else{
    $searchModel->load($loadData);
}

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

Answer 2

做到了。如果将来有人想知道

在ProdutosSearch：

SQL> with test (id, title) as
  2    (select 1, 'Robin Hood,Avatar,Star Wars Episode III' from dual union all
  3     select 2, 'Mickey Mouse,Avatar'   from dual union all
  4     select 3, 'The Godfather'     from dual
  5    ),
  6  temp as
  7    (select regexp_substr(title, '[^,]+', 1, column_value) val
  8     from test cross join table(cast(multiset(select level from dual
  9                                              connect by level <= regexp_count(title, ',') + 1
 10                                             ) as sys.odcinumberlist))
 11    )
 12  select val as title,
 13         count(*)
 14  From temp
 15  group by val
 16  order by val;

TITLE                            COUNT(*)
------------------------------ ----------
Avatar                                  2
Mickey Mouse                            1
Robin Hood                              1
Star Wars Episode III                   1
The Godfather                           1

SQL>

控制器上没有任何变化

$query = Produtos::find();

// add conditions that should always apply here
if (!isset($_GET['ProdutosSearch'])){

$query = Produtos::find();
$query->where('1 = 2');
$dataProvider = new ActiveDataProvider([
    'query' => $query,
]);
return $dataProvider;
}

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

$this->load($params);

使Kartik GridView仅在搜索后显示

2 个答案: