use ng-bootstrap date selector, with proper formatting/parsing according to the current locale #177

src-ui/src/app/utils/ngb-date-adapter.ts

@@ -0,0 +1,23 @@
+import { Injectable } from "@angular/core";
+import { NgbDateAdapter, NgbDateStruct } from "@ng-bootstrap/ng-bootstrap";
+
+@Injectable()
+export class ISODateAdapter extends NgbDateAdapter<string> {
+
+  fromModel(value: string | null): NgbDateStruct | null {
+    if (value) {
+      let date = new Date(value)
+      return {
+        day : date.getDate(),
+        month : date.getMonth() + 1,
+        year : date.getFullYear()
+      }
+    } else {
+      return null
+    }
+  }
+
+  toModel(date: NgbDateStruct | null): string | null {
+    return date ? new Date(date.year, date.month - 1, date.day).toISOString() : null
+  }
+}