Added support for multi-column stacked charts

src/Models/ColumnChartModel.php

@@ -7,6 +7,7 @@ namespace Asantibanez\LivewireCharts\Models;
  * Class ColumnChartModel
  * @package Asantibanez\LivewireCharts\Models
  * @property boolean $isMultiColumn
+ * @property boolean $isStacked
  */
 class ColumnChartModel extends BaseChartModel
 {
@@ -14,6 +15,8 @@ class ColumnChartModel extends BaseChartModel
 
     public $isMultiColumn;
 
+    public $isStacked;
+
     public $onColumnClickEventName;
 
     public $data;
@@ -28,6 +31,8 @@ class ColumnChartModel extends BaseChartModel
 
         $this->isMultiColumn = false;
 
+        $this->isStacked = false;
+
         $this->data = collect();
     }
 
@@ -45,6 +50,13 @@ class ColumnChartModel extends BaseChartModel
         return $this;
     }
 
+    public function stacked()
+    {
+        $this->isStacked = true;
+
+        return $this;
+    }
+
     public function setOpacity($opacity)
     {
         $this->opacity = $opacity;
@@ -93,6 +105,7 @@ class ColumnChartModel extends BaseChartModel
             'onColumnClickEventName' => $this->onColumnClickEventName,
             'opacity' => $this->opacity,
             'isMultiColumn' => $this->isMultiColumn,
+            'isStacked' => $this->isStacked,
             'data' => $this->data->toArray(),
         ]);
     }
@@ -107,6 +120,8 @@ class ColumnChartModel extends BaseChartModel
 
         $this->isMultiColumn = data_get($array, 'isMultiColumn', false);
 
+        $this->isStacked = data_get($array, 'isStacked', false);
+
         $this->data = collect(data_get($array, 'data', []));
     }
 }