Example showing the grouping of grid data for a single column that is pre-sorted. Note that the extension can group columns, irrespective of the position of the column in the grid (second column in this example). This example also demonstrates grouping on a related field from another table. It also includes an advanced scenario of using \kartik\grid\FormulaColumn to calculate the Amount value.
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echo GridView::widget([
'dataProvider' => $dataProvider,
'filterModel' => $searchModel,
'showPageSummary' => true,
'pjax' => true,
'striped' => true,
'hover' => true,
'panel' => ['type' => 'primary', 'heading' => 'Grid Grouping Example'],
'toggleDataContainer' => ['class' => 'btn-group mr-2 me-2'],
'columns' => [
['class' => 'kartik\grid\SerialColumn'],
[
'attribute' => 'supplier_id',
'width' => '310px',
'value' => function ($model, $key, $index, $widget) {
return $model->supplier->company_name;
},
'filterType' => GridView::FILTER_SELECT2,
'filter' => ArrayHelper::map(Suppliers::find()->orderBy('company_name')->asArray()->all(), 'id', 'company_name'),
'filterWidgetOptions' => [
'pluginOptions' => ['allowClear' => true],
],
'filterInputOptions' => ['placeholder' => 'Any supplier'],
'group' => true, // enable grouping
],
[
'attribute' => 'category_id',
'width' => '250px',
'value' => function ($model, $key, $index, $widget) {
return $model->category->category_name;
},
'filterType' => GridView::FILTER_SELECT2,
'filter' => ArrayHelper::map(Categories::find()->orderBy('category_name')->asArray()->all(), 'id', 'category_name'),
'filterWidgetOptions' => [
'pluginOptions' => ['allowClear' => true],
],
'filterInputOptions' => ['placeholder' => 'Any category']
],
[
'attribute' => 'product_name',
'pageSummary' => 'Page Summary',
'pageSummaryOptions' => ['class' => 'text-right text-end'],
],
[
'attribute' => 'unit_price',
'width' => '150px',
'hAlign' => 'right',
'format' => ['decimal', 2],
'pageSummary' => true,
'pageSummaryFunc' => GridView::F_AVG
],
[
'attribute' => 'units_in_stock',
'width' => '150px',
'hAlign' => 'right',
'format' => ['decimal', 0],
'pageSummary' => true
],
[
'class' => 'kartik\grid\FormulaColumn',
'header' => 'Amount In Stock',
'value' => function ($model, $key, $index, $widget) {
$p = compact('model', 'key', 'index');
return $widget->col(4, $p) * $widget->col(5, $p);
},
'mergeHeader' => true,
'width' => '150px',
'hAlign' => 'right',
'format' => ['decimal', 2],
'pageSummary' => true
],
],
]);
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