nuova veste grafica: myskills, mygoods, mybachecas, myhosps,

- cambiato id (da numero a stringa)

src/server/models/mygroup.js

@@ -15,7 +15,10 @@ mongoose.plugin(schema => {
 
 const MyGroupSchema = new Schema({
   _id: {
-    type: String,    
+    type: String,
+    default: function () {
+      return new ObjectID().toString();
+    },
   },
   idapp: {
     type: String,
@@ -144,18 +147,8 @@ MyGroupSchema.statics.executeQueryTable = function (idapp, params, user) {
 
 MyGroupSchema.pre('save', async function (next) {
   if (this.isNew) {
-    const myrec = await MyGroup.findOne().limit(1).sort({ _id: -1 });
-    if (!!myrec) {
-      if (myrec._doc._id === 0)
-        this._id = 1;
-      else
-        this._id = myrec._doc._id + 1;
-
-    } else {
-      this._id = 1;
-    }
-
-    this.date_created = new Date();
+    if (!this.date_created)
+      this.date_created = new Date();
   }
 
   next();