Re-fetch unit data if necessary

Author: rolandgeider

lib/screens/home_tabs_screen.dart

@@ -86,6 +86,7 @@ class _HomeTabsScreenState extends State<HomeTabsScreen> with SingleTickerProvid
       final measurementProvider = context.read<MeasurementProvider>();
       final userProvider = context.read<UserProvider>();
 
+      //
       // Base data
       widget._logger.info('Loading base data');
       await Future.wait([
@@ -95,7 +96,18 @@ class _HomeTabsScreenState extends State<HomeTabsScreen> with SingleTickerProvid
         nutritionPlansProvider.fetchIngredientsFromCache(),
         exercisesProvider.fetchAndSetInitialData(),
       ]);
+      exercisesProvider.fetchAndSetAllExercises();
+
+      // Workaround for https://github.com/wger-project/flutter/issues/901
+      // It seems that it can happen that sometimes the units were not loaded properly
+      // so now we check and try again if necessary. We might need a better general
+      // solution since this could potentially happen with other data as well.
+      if (routinesProvider.repetitionUnits.isEmpty || routinesProvider.weightUnits.isEmpty) {
+        widget._logger.info('Routine units are empty, fetching again');
+        await routinesProvider.fetchAndSetUnits();
+      }
 
+      //
       // Plans, weight and gallery
       widget._logger.info('Loading routines, weight, measurements and gallery');
       await Future.wait([
@@ -107,13 +119,15 @@ class _HomeTabsScreenState extends State<HomeTabsScreen> with SingleTickerProvid
         measurementProvider.fetchAndSetAllCategoriesAndEntries(),
       ]);
 
+      //
       // Current nutritional plan
       widget._logger.info('Loading current nutritional plan');
       if (nutritionPlansProvider.currentPlan != null) {
         final plan = nutritionPlansProvider.currentPlan!;
         await nutritionPlansProvider.fetchAndSetPlanFull(plan.id!);
       }
 
+      //
       // Current routine
       widget._logger.info('Loading current routine');
       if (routinesProvider.currentRoutine != null) {