Display Forez presence

lib/models/forez_presence.dart

@@ -0,0 +1,29 @@
+import 'package:flutter/material.dart';
+
+/// Single presence information
+///
+/// @author Pierre Hubert
+
+class Presence {
+  final int userID;
+  final int year;
+  final int month;
+  final int day;
+
+  const Presence({
+    @required this.userID,
+    @required this.year,
+    @required this.month,
+    @required this.day,
+  })  : assert(userID != null),
+        assert(year != null),
+        assert(month != null),
+        assert(day != null);
+
+  Presence.fromDateTime(DateTime dt, this.userID)
+      : assert(dt != null),
+        year = dt.year,
+        month = dt.month,
+        day = dt.day,
+        assert(userID != null);
+}