Tagged Duplicate Entries After user submits the form Django

can someone help me figure out… I would want to automatically trigger in database if the entries that was posted by a different user is a possible duplicate. if entries like date, time and location are the same… how can I do this? Thank you

So far I have below code, where can I insert possible duplicate in the database after the user submits the form

Model

class UserReport(models.Model):
PENDING = 1
APPROVED = 2
REJECTED = 3
STATUS = (
    (PENDING, 'Pending'),
    (APPROVED, 'Approved'),
    (REJECTED, 'Rejected')
)

IF_DUPLICATE = (
    ('Duplicate', 'Duplicate'),
    ('Possible Duplicate', 'Possible Duplicate'),
    ('Not Duplicate', 'Not Duplicate')
)

user = models.ForeignKey(User, on_delete=models.CASCADE, null=True)
userid = models.CharField(max_length=250, unique=True,  null=True, blank=True)
# barangay = models.ForeignKey(Barangay_district, on_delete=models.CASCADE, null=True)
description = models.TextField(max_length=250, blank=True)
address = models.CharField(max_length=250)
country = models.CharField(max_length=50, blank=True, null=True)
state = models.CharField(max_length=250, blank=True, null=True)
city = models.CharField(max_length=50, blank=True, null=True)
pin_code = models.CharField(max_length=6, blank=True, null=True)
latitude = models.FloatField(max_length=20, blank=True, null=True)
longitude = models.FloatField(max_length=20, blank=True, null=True)
geo_location = gismodels.PointField(blank=True, null=True, srid=4326) # New field
upload_photovideo = models.FileField(upload_to='incident_report/image', blank=True, null=True)
date = models.DateField(auto_now_add=False, auto_now=False, blank=True, null=True)
time = models.TimeField(auto_now_add=False, auto_now=False, blank=True, null=True)
status = models.PositiveSmallIntegerField(choices=STATUS, blank=True, null=True)
duplicate =  models.CharField(choices=IF_DUPLICATE,max_length=250, blank=True, null=True)
created_at = models.DateTimeField(auto_now_add=True)
updated_at = models.DateTimeField(auto_now=True)

def get_status(self):
    if self.status == 1:
        incident_status = 'Pending'
    elif self.status == 2:
        incident_status = 'Approved'
    elif self.status == 3:
        incident_status = 'Rejected'
    return incident_status


# New method to generate geo_location from lat, lng


def save(self, *args, **kwargs):
    super(UserReport, self).save(*args, **kwargs)
    if self.upload_photovideo:
        if  ".jpg" in self.upload_photovideo.url or ".png" in self.upload_photovideo.url:
         #check if image exists before resize
            img = Image.open(self.upload_photovideo.path)

            if img.height > 1080 or img.width > 1920:
                new_height = 720
                new_width = int(new_height / img.height * img.width)
                img = img.resize((new_width, new_height))
                img.save(self.upload_photovideo.path)
    
    if self.latitude and self.longitude:
        self.geo_location = Point(float(self.longitude), float(self.latitude))
        return super(UserReport, self).save(*args, **kwargs)
    return super(UserReport, self).save(*args, **kwargs)

Views

def sa_incidentreports(request):
profile = get_object_or_404(UserProfile, user=request.user)
if request.method == 'POST':
    form =  UserReportForm(request.POST or None, request.FILES or None)
    form_general = IncidentGeneralForm(request.POST or None, request.FILES or None)
    # form_people = IncidentRemarksForm(request.POST or None, request.FILES or None)
    form_media = IncidentRemarksForm(request.POST or None, request.FILES or None)
    form_remarks = IncidentRemarksForm(request.POST or None, request.FILES or None)
    try:
        if form.is_valid() and form_general.is_valid() and form_remarks.is_valid():
            date=request.POST.get("date")
            time=request.POST.get("time")
            address=request.POST.get("address")
            city=request.POST.get("city")
            pin_code=request.POST.get("pin_code")
            latitude=request.POST.get("latitude")
            longitude=request.POST.get("longitude")
            description=request.POST.get("description")
            

            accident_factor1 = request.POST.get("accident_factor")
            accident_factor = AccidentCausation.objects.get(pk=accident_factor1)

            collision_type1 = request.POST.get("collision_type")
            collision_type = CollisionType.objects.get(pk=collision_type1)

            
            crash_type1 = request.POST.get("crash_type")
            crash_type = CrashType.objects.get(pk=crash_type1)
            
            weather = request.POST.get("weather")
            light = request.POST.get("light")
            severity = request.POST.get("severity")
            movement_code = request.POST.get("movement_code")
            
            
            desc=request.POST.getlist("desc[]")
            images=request.FILES.getlist("file[]")
            
            responder = request.POST.get("responder")
            action_taken = request.POST.get("action_taken")
            form.user = request.user
            user_report=UserReport(user=request.user,date=date,time=time,address=address,city=city,pin_code=pin_code,latitude=latitude,longitude=longitude,description=description)
            user_report.status = 2
            user_report.save()
            incident_general=IncidentGeneral(user_report=user_report,accident_factor=accident_factor,
                                            collision_type=collision_type,
                                            crash_type=crash_type,
                                            weather=weather,light=light,severity=severity,movement_code=movement_code)
            incident_general.save()
            
            incident_remarks = IncidentRemark(incident_general=incident_general,responder=responder,action_taken=action_taken)
            incident_remarks.save()
            
            messages.success(request,"Data Save Successfully")
            request.session['latest__id'] = incident_general.id
            return redirect('sa_incidentreports_additional')
        
    except Exception as e:
        print('invalid form')
        messages.error(request, str(e))


    else:
        print('invalid formd')
        print(form.errors)
        print(form_general.errors)
        print(form_remarks.errors)
else:
    form = UserReportForm()
    form_general = IncidentGeneralForm()
    form_remarks = IncidentRemarksForm()        
context = {
    'form': form,
    'form_general': form_general,
    'form_remarks': form_remarks,
    'profile':profile
}
return render(request,"pages/super/sa_incident_report.html", context)