fix: dashboard error logging

analytics/admin.py

@@ -49,6 +49,7 @@ def get_urls(self):
 
     @staticmethod
     def analytics_view(request):
+        chart_error = 'No error'
         try:
             charts = [
                 Diagrams.map_weekday_hour_diagram(),
@@ -62,9 +63,9 @@ def analytics_view(request):
                 Diagrams.machine_types_per_building(),
             ]
         except Exception as e:
-            print(e)
+            chart_error = e
             charts = []
 
         # States per building
 
-        return render(request, 'admin/analytics.html', context={'charts': charts})
+        return render(request, 'admin/analytics.html', context={'charts': charts, 'chart_error': chart_error})

templates/admin/analytics.html

@@ -13,11 +13,12 @@
 <script>
     document.addEventListener("DOMContentLoaded", function() {
         const charts = {{ charts|safe }};
+        const chart_error = {{ chart_error|safe }};
         const container = document.getElementById('charts-container');
 
-        if (charts.length === 0) {
+        if (charts.length === 0 && chart_error !== 'No error') {
             const noData = document.createElement('p');
-            noData.textContent = 'No data available or an error occurred while calculating the analytics.';
+            noData.textContent = `Error: ${chart_error}`;
             container.appendChild(noData);
             return;
         }