fix areas order

app/service/course/institution.js

@@ -88,7 +88,7 @@ class InstitutionService extends Service {
         const areas_ret = await this.getInstitutionAreas({ institution_id, limit: 1000 });//校区
         const area_rows = areas_ret.rows;
         const area_lbs = (lat > 0 || lng > 0) ? await this.computeDistance(area_rows, { lat, lng }) : [];//计算距离信息
-        const areas = [];
+        let areas = [];
 
         for (let i in area_rows) {
 
@@ -102,7 +102,7 @@ class InstitutionService extends Service {
             if (lbs.travel_method === 'walking') {
                 travel_tips = `距我${distance}km,步行${duration}分钟`;
             }
-            if (distance === 0 && duration === 0) {
+            if (Number(distance) === 0 && duration === 0) {
                 travel_tips = '暂无法计算出距离';
             }
             if (area.id == area_id && area.institution_id == institution_id) {
@@ -119,8 +119,10 @@ class InstitutionService extends Service {
                 travel_tips,
                 lat: area.lat,
                 lng: area.lng,
+                distance: Number(distance) === 0 ? 999999999.0 : parseFloat(distance),
             });
         }
+        areas = _.orderBy(areas, ['distance'], ['asc']);
 
         //是否收藏过
         const collection_ret = await ctx.classModel.CourseUserCollection.one({ where: { user_uuid, institution_id, is_deleted: 0 } });
@@ -237,7 +239,7 @@ class InstitutionService extends Service {
         const { institution_id, page, limit } = input;
         const where = { institution_id };
         const areas = await ctx.classModel.CourseArea.list({ attributes, page, limit, where });
-
+    
         return areas;
 
     }