Generate a new id for reports imported into a dashboard

This fixes a bug that was preventing to import the same report multiple
times in the same dashboard.

Problematic reports need to be removed from dashboard then imported
again.

Author: jajm

CHANGELOG.md

@@ -31,6 +31,12 @@ Several pages already work without any AngularJS code:
 - After a successful login, redirect the user to where it was before being
   redirected to the login page
 
+### Fixed
+
+- Fixed a bug that was preventing to import the same report multiple times in
+  the same dashboard.
+  Problematic reports need to be removed from dashboard then imported again
+
 ### Dependencies
 
 - Added gettext.js 2.0.3

public/js/ng/dashboard-edit/dashboard-edit.component.js

@@ -96,7 +96,7 @@
             modal.result.then(reportID => {
                 reportModel.getReportDefinition(reportID).then(function (report) {
                     if (report) {
-                        report.id = report._id;
+                        report.id = uuid.v4();
                         $scope.selectedDashboard.reports.push(report);
                     } else {
                         notify.error(i18n.gettext('Error : failed to import report'));

server/models/dashboard.js

@@ -15,6 +15,9 @@ const dashboardReportSchema = new mongoose.Schema({
     reportSubType: { type: String },
     reportType: { type: String },
     selectedLayerID: { type: mongoose.Schema.Types.ObjectId, ref: 'Layer' },
+}, {
+    id: false,
+    _id: false,
 });
 
 const dashboardSchema = new mongoose.Schema({