Merge pull request #8318 from dataease/pr@dev@refactor_drill_date

refactor(视图): 日期字段下钻支持设置格式

core/frontend/src/views/chart/view/ChartEdit.vue

@@ -2689,6 +2689,14 @@ export default {
         view.type === 'table-pivot') {
         view.drillFields = []
       }
+      view.drillFields.forEach(ele => {
+        if (!ele.dateStyle || ele.dateStyle === '') {
+          ele.dateStyle = 'y_M_d'
+        }
+        if (!ele.datePattern || ele.datePattern === '') {
+          ele.datePattern = 'date_sub'
+        }
+      })
       this.chart = JSON.parse(JSON.stringify(view))
       this.view = JSON.parse(JSON.stringify(view))
       // stringify json param