Added created_at filter

Author: newini

monitor/views.py

@@ -1,15 +1,20 @@
 from django.shortcuts import render
 
 from .models import Data
+from datetime import datetime, timedelta, timezone
+JST = timezone(timedelta(hours=+9), 'JST')
 
 
 def index(request):
-    created_at_list = list( Data.objects.order_by('-created_at').values_list('created_at', flat=True) )
+    data = Data.objects.filter(
+            created_at__gte=datetime.now(JST)-timedelta(hours=1) # Get 12 hours before data
+            ).order_by('-created_at')
+    created_at_list = list( data.values_list('created_at', flat=True) )
     created_at_list = [ str(created_at) for created_at in created_at_list]
-    temperature_list = list( Data.objects.order_by('-created_at').values_list('temperature', flat=True) )
-    humidity_list = list( Data.objects.order_by('-created_at').values_list('humidity', flat=True) )
-    eCO2_list = list( Data.objects.order_by('-created_at').values_list('eCO2', flat=True) )
-    TVOC_list = list( Data.objects.order_by('-created_at').values_list('TVOC', flat=True) )
+    temperature_list = list( data.values_list('temperature', flat=True) )
+    humidity_list = list( data.values_list('humidity', flat=True) )
+    eCO2_list = list( data.values_list('eCO2', flat=True) )
+    TVOC_list = list( data.values_list('TVOC', flat=True) )
     context = {
             'created_at_list': created_at_list,
             'temperature_list': temperature_list,