点击一级分类也可以查询到三级分类下的信息

models/data_manage/my_chart.go

@@ -411,9 +411,15 @@ func GetChartClassify(chartClassifyId int) (chart_classify_id string, err error)
 			WHERE a.chart_classify_id=?
 			UNION ALL
 			SELECT a.chart_classify_id FROM chart_classify AS a 
-			WHERE a.parent_id=?
+			WHERE a.parent_id=? UNION ALL
+	SELECT
+		chart_classify_id 
+	FROM
+		chart_classify 
+WHERE
+	parent_id IN ( SELECT GROUP_CONCAT( chart_classify_id ) AS chart_classify_id FROM chart_classify WHERE parent_id = ? )
 			)AS t`
-	err = o.Raw(sql, chartClassifyId, chartClassifyId).QueryRow(&chart_classify_id)
+	err = o.Raw(sql, chartClassifyId, chartClassifyId, chartClassifyId).QueryRow(&chart_classify_id)
 	return
 }