GridView Column Problem

Alberk · December 22, 2015, 5:59am

Hi,

I getting error “Trying to get property of non-object” when accessing the $data->srvbytes. When I declare as $data[‘srvdata’] it works. Why is that so? FYI, my data source is from ArrayDataProvider. Thanks.

GridView::widget([‘dataProvider’ => $dataprovider,

‘columns’ => [ [‘attribute’ => ‘srvbytes’,‘label’ => ‘Server Bytes’, ‘format’ => ‘raw’,

‘value’ => function($data){ return $data->srvbytes’];}]);

sukunj · December 22, 2015, 6:19am

Try this "

[

										'attribute' =&gt; 'average_laundry_price',


										'content'=&gt;function(&#036;data){


												return &quot;&#036;&quot;.&#036;data-&gt;average_laundry_price;


											}





									],

Alberk · December 22, 2015, 6:38am

Hi,

The dataprovider is coming from ArrayDataProvider.

Not working. Still with the same error message

fabriziocaldarelli · December 22, 2015, 9:01am

It is wrong the definition of DataColumn of GridView (value property):

http://www.yiiframework.com/doc-2.0/yii-grid-datacolumn.html#$value-detail

Alberk · December 22, 2015, 10:30am

Expressing the value via array method works.


GridView::widget(['dataProvider' => $dataprovider,

 'columns' => [ ['attribute' => 'srvbytes','label' => 'Server Bytes', 'format' => 'raw', 

 'value' => function($data){ return $data['srvbytes']];}]);

fabriziocaldarelli · December 22, 2015, 10:38am

If it works is because the first parameter of ‘value’ callable function is the model.

If you read the documentation, the function signature is:




function ($model, $key, $index, $column)

Alberk · December 23, 2015, 12:38am

Fabrizio Caldarelli:

If it works is because the first parameter of ‘value’ callable function is the model.

If you read the documentation, the function signature is:
function ($model, $key, $index, $column)

Ok, What I was confused about, is that when the dataprovider was from SQL the reference to the ‘value’ would be $data->srvbytes whereas in my case the dataprovider came from an ArrayDataProvider. The confusing part for me is the inconsistent way to access the ‘value’ across dataprovider.