добавил статус уровня воды "не изменяется"

index/views.py

@@ -1,8 +1,9 @@
 import os
 
-from django.http import HttpResponse
+from django.http import HttpResponse, HttpResponseRedirect
 from django.shortcuts import render
 # from django.db.models import Manager
+from django.contrib.auth import authenticate, login
 
 # только для тестирования!
 import requests
@@ -12,6 +13,10 @@ TEST_BASE_FETCH = "https://test.wawaa.ru/dev-fetch.php"
 
 def view_index(request):
     return render(request, 'index.html')
+    # if request.user.is_authenticated:
+    #     return render(request, 'index.html')
+    # else:
+    #     return HttpResponseRedirect()
 
 
 def view_stats(request):
@@ -29,3 +34,19 @@ def view_tank_chart(request):
     response = HttpResponse(res.content)
     response.headers["Content-type"] = response.headers["Content-type"]
     return response
+
+
+# вход
+
+
+def view_login(request):
+    username = request.POST["username"]
+    password = request.POST["password"]
+    user = authenticate(request, username=username, password=password)
+    if user is not None:
+        login(request, user)
+        return HttpResponseRedirect('/')
+    else:
+        # Return an 'invalid login' error message.
+        pass
+