Merge pull request #28 from Practically/feat/27

feat: add support for stacked charts

Author: gwynbox

src/BaseDataset.php

@@ -119,6 +119,21 @@ abstract class BaseDataset extends \yii\base\Component
      */
     public $label = '';
 
+    /**
+     * @var string|null
+     */
+    public $xAxisID = null;
+
+    /**
+     * @var string|null
+     */
+    public $yAxisID = null;
+
+    /**
+     * @var string|null
+     */
+    public $stack = null;
+
     /**
      * Populates `$this->data` manipulating a query row into the correct format
      * for the dataset format use are using
@@ -192,6 +207,18 @@ public function getDataset()
             $dataset['label'] = $this->label;
         }
 
+        if ($this->xAxisID !== null) {
+            $dataset['xAxisID'] = $this->xAxisID;
+        }
+
+        if ($this->yAxisID !== null) {
+            $dataset['yAxisID'] = $this->yAxisID;
+        }
+
+        if ($this->stack !== null) {
+            $dataset['stack'] = $this->stack;
+        }
+
         return $dataset;
     }