Group Page : visibility, some info, members views.

src/server/models/mygroup.js

@@ -368,6 +368,54 @@ MyGroupSchema.statics.getGroupsByUsername = async function(idapp, username, req)
   };
 };
 
+MyGroupSchema.statics.extractCitiesName = async function(idapp, id) {
+
+  try {
+    let aggr1 = [
+      {
+        $match: {idapp, _id: id},
+      },
+      {
+        $lookup: {
+          from: 'cities',
+          localField: 'idCity',
+          foreignField: '_id',
+          as: 'mycities',
+        },
+      },
+      {
+        '$replaceRoot': {
+          'newRoot': {
+            '$mergeObjects': [
+              {
+                '$arrayElemAt': [
+                  '$mycities',
+                  0,
+                ],
+              },
+              '$$ROOT',
+            ],
+          },
+        },
+      },
+      {
+        $project: {
+          "mycities.comune": 1,
+          "mycities.prov": 1
+        },
+      },
+    ];
+
+    ris = await this.aggregate(aggr1);
+
+    return ris;
+  }catch (e) {
+    console.error('e', e);
+  }
+
+};
+
+
 const MyGroup = mongoose.model('MyGroup', MyGroupSchema);
 
 module.exports = {MyGroup};