Set Django to 4.0.1, add DB migrations

Now that we're somewhat Django4 compatible it's time to advertise our
newfound skill! Not all functionality has been tested, but it is
starting again.

api/admin.py

@@ -0,0 +1,3 @@
+from django.contrib import admin
+
+# Register your models here.

api/apps.py

@@ -0,0 +1,5 @@
+from django.apps import AppConfig
+
+
+class ApiConfig(AppConfig):
+    name = 'api'

api/models.py

@@ -0,0 +1,3 @@
+from django.db import models
+
+# Create your models here.

api/serializers.py

@@ -0,0 +1,98 @@
+from django import forms
+from django.utils import timezone
+from rest_framework import serializers
+
+from contest.models import Contest, Band, Frequency, QSO, EntryCategory, User, ShadowCall, Reference
+from contest.validators import CallLogValidator
+
+
+class ContestSerializer(serializers.ModelSerializer):
+    class Meta:
+        model = Contest
+        # FIXME: add callQrg
+        fields = ('id', 'shortName', 'deadline', 'qsoStartTime', 'qsoEndTime', 'callQrg')
+
+
+class BandSerializer(serializers.ModelSerializer):
+    # contest = ContestSerializer()
+
+    class Meta:
+        model = Band
+        fields = ('id', 'name', 'contest')
+
+
+class FrequencySerializer(serializers.ModelSerializer):
+    # band = BandSerializer()
+
+    class Meta:
+        model = Frequency
+        fields = ('id', 'channel', 'qrg', 'band', 'note')
+
+
+class EntryCategorySerializer(serializers.ModelSerializer):
+    class Meta:
+        model = EntryCategory
+        fields = ('id', 'name', 'description')
+
+
+class ReferenceSerializer(serializers.ModelSerializer):
+    class Meta:
+        model = Reference
+        fields = ('id', 'name', 'description')
+
+
+class UserSerializer(serializers.ModelSerializer):
+    # ref = ReferenceSerializer()
+    # cat = EntryCategorySerializer()
+
+    class Meta:
+        model = User
+        fields = ('id', 'ref', 'cat', 'location', 'opName', 'regTime', 'dncall', 'qrv2m', 'qrv70cm', 'extra2m70cm')
+        read_only_fields = ('ref', 'location', 'regTime')
+
+    def validate(self, attrs):
+        contest = Contest.get_current_contest()
+        if contest.deadline < timezone.now():
+            raise serializers.ValidationError("The deadline for changing the entry category has passed")
+
+        return attrs
+
+
+class QSOSerializer(serializers.ModelSerializer):
+    class Meta:
+        model = QSO
+        fields = ('id', 'owner', 'time', 'ownNo', 'band', 'call', 'reportTX', 'reportRX', 'refStr', 'remarks')
+        read_only_fields = ('owner',)
+
+    def validate_call(self, value):
+        val = value.strip().upper()
+        try:
+            CallLogValidator()(val)
+        except forms.ValidationError as e:
+            raise serializers.ValidationError({'errors': e.error_list})
+
+        return val
+
+    def validate(self, attrs):
+        ownNo = attrs['ownNo']
+        try:
+            o = QSO.objects.get(owner=self.context['request'].user, ownNo=ownNo)
+            if not (self.instance and self.instance.id and self.instance.id == o.id):
+                raise serializers.ValidationError("You already logged a QSO with the number %s" % ownNo)
+        except QSO.DoesNotExist:
+            pass
+
+        band = attrs.get('band')
+        if band:
+            if band.contest.deadline < timezone.now():
+                raise serializers.ValidationError("The deadline for logging and editing QSOs has passed")
+
+        return attrs
+
+
+class ShadowCallSerializer(serializers.ModelSerializer):
+    ref = ReferenceSerializer()
+
+    class Meta:
+        model = ShadowCall
+        fields = ('id', 'username', 'ref', 'location', 'opName', 'regTime')

api/tests.py

@@ -0,0 +1,3 @@
+from django.test import TestCase
+
+# Create your tests here.

api/urls.py

@@ -0,0 +1,20 @@
+from django.urls import include, path
+from rest_framework import routers
+
+from .views import ContestViewSet, BandViewSet, FrequencyViewSet, EntryCategoryViewSet, ReferenceViewSet, QSOViewSet, \
+    ShadowCallViewSet, UserProfileViewSet
+
+router = routers.DefaultRouter()
+router.register('contests', ContestViewSet)
+router.register('bands', BandViewSet)
+router.register('frequencies', FrequencyViewSet)
+router.register('entrycategories', EntryCategoryViewSet)
+router.register('references', ReferenceViewSet)
+router.register('qsos', QSOViewSet, basename='qso')
+router.register('shadowcalls', ShadowCallViewSet)
+router.register('profile', UserProfileViewSet, basename='profile')
+
+urlpatterns = [
+    path('', include(router.urls)),
+    path('api-auth/', include('rest_framework.urls', namespace='rest_framework')),
+]

api/views.py

@@ -0,0 +1,91 @@
+from rest_framework.permissions import IsAuthenticated, IsAdminUser
+from rest_framework import viewsets
+
+from .serializers import ContestSerializer, BandSerializer, FrequencySerializer, EntryCategorySerializer, \
+    ReferenceSerializer, QSOSerializer, ShadowCallSerializer, UserSerializer
+from contest.models import Contest, Band, Frequency, EntryCategory, Reference, QSO, ShadowCall, User
+
+
+class ContestViewSet(viewsets.ReadOnlyModelViewSet):
+    """
+    Resource to list and view all available contests. Use `current/` to get the current Contest.
+    """
+    queryset = Contest.objects.all()
+    serializer_class = ContestSerializer
+    filterset_fields = ['shortName']
+
+    def get_object(self):
+        lookup_url_kwarg = self.lookup_url_kwarg or self.lookup_field
+        if self.kwargs.get(lookup_url_kwarg) == "current":
+            obj = Contest.get_current_contest()
+            self.check_object_permissions(self.request, obj)
+        else:
+            obj = super(ContestViewSet, self).get_object()
+
+        return obj
+
+
+class BandViewSet(viewsets.ReadOnlyModelViewSet):
+    queryset = Band.objects.all()
+    serializer_class = BandSerializer
+    filterset_fields = ['name', 'contest']
+
+
+class FrequencyViewSet(viewsets.ReadOnlyModelViewSet):
+    queryset = Frequency.objects.all()
+    serializer_class = FrequencySerializer
+    filterset_fields = ['band', 'channel']
+
+
+class EntryCategoryViewSet(viewsets.ReadOnlyModelViewSet):
+    queryset = EntryCategory.objects.all()
+    serializer_class = EntryCategorySerializer
+    filterset_fields = ['name']
+
+
+class ReferenceViewSet(viewsets.ReadOnlyModelViewSet):
+    permission_classes = [IsAdminUser]
+    queryset = Reference.objects.all()
+    serializer_class = ReferenceSerializer
+    filterset_fields = ['name']
+
+
+class QSOViewSet(viewsets.ModelViewSet):
+    permission_classes = [IsAuthenticated]
+    serializer_class = QSOSerializer
+    filterset_fields = ['time', 'ownNo', 'band', 'call', 'refStr']
+
+    def get_queryset(self):
+        return QSO.objects.filter(owner=self.request.user)
+
+    def perform_create(self, serializer):
+        return serializer.save(owner=self.request.user)
+
+
+class UserProfileViewSet(viewsets.ModelViewSet):
+    """
+    Resource to view user-profiles, currently restricted to the current user's profile.
+    Use `me/` to get the profile of the currently logged in user.
+    """
+    permission_classes = [IsAuthenticated]
+    serializer_class = UserSerializer
+
+    def get_queryset(self):
+        return User.objects.filter(id=self.request.user.id)
+
+    def get_object(self):
+        lookup_url_kwarg = self.lookup_url_kwarg or self.lookup_field
+        if self.kwargs.get(lookup_url_kwarg) == "me":
+            obj = self.request.user
+            self.check_object_permissions(self.request, obj)
+        else:
+            obj = super(ContestViewSet, self).get_object()
+
+        return obj
+
+
+class ShadowCallViewSet(viewsets.ReadOnlyModelViewSet):
+    permission_classes = [IsAdminUser]
+    queryset = ShadowCall.objects.all()
+    serializer_class = ShadowCallSerializer
+    filterset_fields = ['username', 'ref']

clear_contest.py

@@ -1,8 +1,4 @@
 #!/usr/bin/env python
-from __future__ import print_function
-
-import datetime
-
 # prepare environment
 import sys
 sys.path.append("..")
@@ -11,13 +7,16 @@ os.environ.setdefault("DJANGO_SETTINGS_MODULE", "cqtu.settings")
 import django
 django.setup()
 
-confirm = raw_input("Do are you sure you want to clear all contest data? Answer with uppercase YES: ")
+confirm_msg = "Do are you sure you want to clear all contest data? Answer with uppercase YES: "
+try:
+    confirm = raw_input(confirm_msg)
+except NameError:
+    confirm = input(confirm_msg)
 
 if confirm != "YES":
     print("Aborting")
     sys.exit(1)
 
-
 from contest.models import QSO, ShadowCall, Reference, User
 
 print("{0} QSOs deleted".format(*QSO.objects.all().delete()))

contest/admin.py

@@ -1,9 +1,12 @@
 from django.contrib import admin
+
 from .models import Frequency, Band, Reference, QSO, User, Contest, ShadowCall, EntryCategory
 
 
 class UserAdmin(admin.ModelAdmin):
     list_display = ('username', 'dncall', 'qrv2m', 'qrv70cm', 'extra2m70cm')
+
+
 admin.site.register(User, UserAdmin)
 admin.site.register(QSO)
 admin.site.register(Band)

contest/apps.py

@@ -1,5 +1,3 @@
-from __future__ import unicode_literals
-
 from django.apps import AppConfig
 
 

contest/cbrparser.py

@@ -1,16 +1,16 @@
+import re
+
 from django.shortcuts import render
 from django.contrib.auth.decorators import login_required
-from .models import Contest, Band
 from django.utils import timezone
 from django.contrib import messages
 from django import forms
 from django.urls import reverse
 from django.http import HttpResponseRedirect
 
-
 from .forms import QSOFormWithTime
+from .models import Contest, Band
 
-import re
 
 def parseCBR(raw):
     """ Parse a CBR file for the CQTU
@@ -20,8 +20,9 @@ def parseCBR(raw):
     inside them.
     """
     kvlinere = re.compile(r"^(?P<key>[A-Z-]+):(?: (?P<value>.*))?$")
-	qsore = re.compile(r"^(?P<band>144|432)\s+(?P<mode>[A-Z]{2})\s+(?P<datetime>\d{4}-\d{2}-\d{2} \d{4}) (?P<call_s>[A-Z0-9/-]+)\s+(?P<rst_s>\d{2,3})\s+(?P<exc_s>[A-Z0-9-]+)\s+(?P<call_r>[A-Z0-9/-]+)\s+(?P<rst_r>\d{2,3})\s+(?P<exc_r>[A-Z0-9-]+)\s+0$")
-
+    qsore = re.compile(r"^(?P<band>144|432)\s+(?P<mode>[A-Z]{2})\s+(?P<datetime>\d{4}-\d{2}-\d{2} \d{4}) "
+                       r"(?P<call_s>[A-Z0-9/-]+)\s+(?P<rst_s>\d{2,3})\s+(?P<exc_s>[A-Z0-9-]+)\s+"
+                       r"(?P<call_r>[A-Z0-9/-]+)\s+(?P<rst_r>\d{2,3})\s+(?P<exc_r>[A-Z0-9-]+)\s+0$")
 
     qsoNo = 1
     info = {
@@ -59,14 +60,17 @@ def parseCBR(raw):
                     elif qsoData["band"] == "432":
                         qsoData["band"] = "70cm"
                     else:
-						raise forms.ValidationError("Error parsing band, needs to be either 144 or 432 (as we only support 2m and 70cm in this contest")
+                        raise forms.ValidationError("Error parsing band, needs to be either 144 or 432 "
+                                                    "(as we only support 2m and 70cm in this contest")
 
                     info["qsos"].append(qsoData)
 
                     if info["call"] != qsoData["call_s"]:
-						raise forms.ValidationError("Error in line %d: qso was not made by you? (callsigns do not match)" % n)
+                        raise forms.ValidationError("Error in line %d: qso was not made by you? "
+                                                    "(callsigns do not match)" % n)
                     if info["location"] != qsoData["exc_s"]:
-						raise forms.ValidationError("Error in line %d: exchange does not match your location? (callsigns do not match)" % n)
+                        raise forms.ValidationError("Error in line %d: exchange does not match your location? "
+                                                    "(callsigns do not match)" % n)
                 else:
                     raise forms.ValidationError("Error in line %d: qso was broken, regex did not match" % n)
 
@@ -79,8 +83,10 @@ def parseCBR(raw):
 
     return info
 
+
 class CBRForm(forms.Form):
-	data = forms.CharField(widget=forms.Textarea, label="Cabrillo data", help_text="Paste your cabrillo file contents here")
+    data = forms.CharField(widget=forms.Textarea, label="Cabrillo data",
+                           help_text="Paste your cabrillo file contents here")
 
     def clean_data(self):
         rawData = self.cleaned_data["data"]
@@ -88,6 +94,7 @@ class CBRForm(forms.Form):
 
         return parsedData
 
+
 def checkCBRConsistency(contest, user, info):
     errors = []
     qsos = []
@@ -95,11 +102,11 @@ def checkCBRConsistency(contest, user, info):
         errors.append("You are not the owner of this logfile! (%s != %s)" % (user.username, info["call"]))
 
     if user.ref.name != info["location"]:
-		errors.append("Location of logfile and registered exchange do not match! (%s != %s)" % (user.ref.name, info["location"]))
+        errors.append("Location of logfile and registered exchange do not match! (%s != %s)" % (user.ref.name,
+                                                                                                info["location"]))
 
     for n, qsoData in enumerate(info["qsos"], 1):
         qsoFormData = {
-			#"owner": user,
             "time": qsoData["datetime"],
             "call": qsoData["call_r"],
             "band": Band.objects.get(contest=contest, name=qsoData["band"]).id,
@@ -119,6 +126,7 @@ def checkCBRConsistency(contest, user, info):
 
     return qsos, errors
 
+
 @login_required
 def uploadCBR(request):
     if not request.user.ref:
@@ -149,7 +157,8 @@ def uploadCBR(request):
                         if cnt > 0:
                             messages.success(request, "%d QSOs have been saved from the cbr file" % cnt)
                         else:
-							messages.warnnig(request, "CBR file was parsed, but no QSOs could be saved, as all cointained errors.")
+                            messages.warnnig(request, "CBR file was parsed, but no QSOs could be saved, "
+                                                      "as all cointained errors.")
 
                         return HttpResponseRedirect(reverse("contest:uploadCBR"))
         else:
@@ -157,4 +166,6 @@ def uploadCBR(request):
     else:
         deadline = True
 
-	return render(request, "contest/uploadCBR.html", {"deadline": deadline, 'form': form, 'verifyData': verifyData, 'verifyErrors': verifyErrors, 'save': save, 'saved': saved})
+    return render(request, "contest/uploadCBR.html",
+                  {"deadline": deadline, 'form': form, 'verifyData': verifyData, 'verifyErrors': verifyErrors,
+                   'save': save, 'saved': saved})

contest/forms.py

@@ -1,14 +1,14 @@
-from django import forms
-from django.contrib.auth.forms import UserCreationForm
-from django.utils import timezone
-
 from crispy_forms.helper import FormHelper
 from crispy_forms.layout import Submit, Layout
+from django import forms
+from django.contrib.auth.forms import UserCreationForm
 from django.urls import reverse
+from django.utils import timezone
 
 from .models import User, Reference, QSO, ShadowCall, EntryCategory, Contest
 from .validators import CallUsernameValidator, CallLogValidator
 
+
 class CustomUserCreationForm(UserCreationForm):
     class Meta:
         model = User
@@ -17,11 +17,15 @@ class CustomUserCreationForm(UserCreationForm):
     username = forms.CharField(max_length=50, validators=[CallUsernameValidator()])
     email = forms.EmailField(required=True)
 
-class UpdateRefForm(forms.Form):
-	existingRef = forms.ModelChoiceField(label="Existing Exchange", queryset=Reference.objects.all(), help_text="If exchange already exists, select it here.", required=False)
-	newRefName = forms.CharField(max_length=50, label="New Exchange", help_text="Enter name of new exchange, if we should create a new", required=False)
 
-	location = forms.CharField(max_length=128, label='Exact Location', help_text="E.g. MAR bei den Fahrstuehlen, TEL 15. OG", required=False)
+class UpdateRefForm(forms.Form):
+    existingRef = forms.ModelChoiceField(label="Existing Exchange", queryset=Reference.objects.all(),
+                                         help_text="If exchange already exists, select it here.", required=False)
+    newRefName = forms.CharField(max_length=50, label="New Exchange",
+                                 help_text="Enter name of new exchange, if we should create a new", required=False)
+
+    location = forms.CharField(max_length=128, label='Exact Location',
+                               help_text="E.g. MAR bei den Fahrstuehlen, TEL 15. OG", required=False)
     opName = forms.CharField(max_length=128, label='Operators', help_text="Name of operator(s)", required=False)
     regTime = forms.DateTimeField(label="Registration time", help_text="Time of Registration")
 
@@ -49,8 +53,10 @@ class UpdateRefForm(forms.Form):
         if not existingRef and not newRefName:
             raise forms.ValidationError("Select either an existing exchange or create a new one!")
 
+
 class UpdateCategoryForm(forms.Form):
     entry = forms.ModelChoiceField(label="Entry category", queryset=EntryCategory.objects.all())
+
     def __init__(self, *args, **kwargs):
         super(UpdateCategoryForm, self).__init__(*args, **kwargs)
 
@@ -68,6 +74,7 @@ class UpdateCategoryForm(forms.Form):
         if contest.deadline < timezone.now():
             raise forms.ValidationError("The deadline for setting your contest category has passed")
 
+
 class QSOForm(forms.ModelForm):
     class Meta:
         model = QSO
@@ -90,11 +97,8 @@ class QSOForm(forms.ModelForm):
         #     #*(QSOForm.Meta.fields +  [ButtonHolder(Submit('submit', 'Submit', css_class='button white'))]))
         #     *(QSOForm.Meta.fields +  [FormActions(Submit('submit', 'Log!'))]))
 
-
     def clean_call(self):
         data = self.cleaned_data["call"].upper().strip()
-		if Reference.objects.filter(name=data).count() > 0:
-			raise forms.ValidationError("Reference already exists")
 
         try:
             CallLogValidator()(data)
@@ -143,12 +147,14 @@ class QSOForm(forms.ModelForm):
         if band.contest.deadline < timezone.now():
             raise forms.ValidationError("The deadline for logging and editing QSOs has passed")
 
+
 class QSOFormWithTime(QSOForm):
     class Meta:
         model = QSO
         # fields = ["time", "ownNo", "band", "call", "reportTX", "reportRX", "otherNo", "refStr", "remarks"]
         fields = ["time", "ownNo", "band", "call", "reportTX", "reportRX", "refStr", "remarks"]
 
+
 class ShadowCallAddForm(forms.ModelForm):
 
     class Meta:

contest/migrations/0021_alter_qso_otherno_alter_qso_ownno_alter_user_dncall_and_more.py

@@ -0,0 +1,65 @@
+# Generated by Django 4.0.1 on 2022-01-22 16:18
+
+import django.contrib.auth.validators
+import django.core.validators
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('contest', '0020_auto_20190122_2348'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='qso',
+            name='otherNo',
+            field=models.IntegerField(blank=True, null=True, validators=[django.core.validators.MinValueValidator(1), django.core.validators.MaxValueValidator(1000000)], verbose_name='No-R'),
+        ),
+        migrations.AlterField(
+            model_name='qso',
+            name='ownNo',
+            field=models.IntegerField(validators=[django.core.validators.MinValueValidator(1), django.core.validators.MaxValueValidator(1000000)], verbose_name='No'),
+        ),
+        migrations.AlterField(
+            model_name='user',
+            name='dncall',
+            field=models.CharField(blank=True, default='', help_text='If you have a DN call that you will offer to SWLs please enter it here', max_length=16, verbose_name='DN-Call'),
+        ),
+        migrations.AlterField(
+            model_name='user',
+            name='extra2m70cm',
+            field=models.BooleanField(default=False, help_text='Will you bring an additional 2m/70cm TRX to lend to other participants?', verbose_name='Additional 2m/70cm TRX'),
+        ),
+        migrations.AlterField(
+            model_name='user',
+            name='first_name',
+            field=models.CharField(blank=True, max_length=150, verbose_name='first name'),
+        ),
+        migrations.AlterField(
+            model_name='user',
+            name='last_name',
+            field=models.CharField(blank=True, max_length=150, verbose_name='last name'),
+        ),
+        migrations.AlterField(
+            model_name='user',
+            name='qrv2m',
+            field=models.BooleanField(default=False, help_text='Will you be QRV on 2m during the contest?', verbose_name='QRV on 2m'),
+        ),
+        migrations.AlterField(
+            model_name='user',
+            name='qrv70cm',
+            field=models.BooleanField(default=False, help_text='Will you be QRV on 70cm during the contest?', verbose_name='QRV on 70cm'),
+        ),
+        migrations.AlterField(
+            model_name='user',
+            name='regTime',
+            field=models.DateTimeField(blank=True, default=None, null=True),
+        ),
+        migrations.AlterField(
+            model_name='user',
+            name='username',
+            field=models.CharField(error_messages={'unique': 'A user with that username already exists.'}, help_text='Required. 150 characters or fewer. Letters, digits and @/./+/-/_ only.', max_length=150, unique=True, validators=[django.contrib.auth.validators.UnicodeUsernameValidator()], verbose_name='username'),
+        ),
+    ]

contest/models.py

@@ -1,19 +1,18 @@
-from __future__ import unicode_literals
-
 import datetime
 
-from django.db import models
 from django.contrib.auth.models import AbstractUser
-from django.core.validators import RegexValidator
+from django.core.validators import RegexValidator, MinValueValidator, MaxValueValidator
+from django.db import models
 from django.db.models import Q, signals
 
-from .validators import CallUsernameValidator
 from .signals import checkForShadowCall
+from .validators import CallUsernameValidator
+
 
 class Contest(models.Model):
     name = models.CharField(max_length=20)
     shortName = models.CharField(max_length=20, unique=True)
-	callQrg = models.ForeignKey("Frequency", models.SET_NULL, null=True, blank=True)
+    callQrg = models.ForeignKey("Frequency", on_delete=models.SET_NULL, null=True, blank=True)
     deadline = models.DateTimeField()
 
     qsoStartTime = models.DateTimeField()
@@ -22,6 +21,11 @@ class Contest(models.Model):
     def __str__(self):
         return self.name
 
+    @classmethod
+    def get_current_contest(cls):
+        return cls.objects.get(id=1)
+
+
 class Reference(models.Model):
     name = models.CharField(max_length=20, unique=True, db_index=True)
     description = models.TextField()
@@ -29,6 +33,7 @@ class Reference(models.Model):
     def __str__(self):
         return self.name
 
+
 class EntryCategory(models.Model):
     name = models.CharField(max_length=64, unique=True)
     description = models.TextField(blank=True)
@@ -36,6 +41,7 @@ class EntryCategory(models.Model):
     def __str__(self):
         return self.name
 
+
 class ShadowCall(models.Model):
     username = models.CharField(max_length=20, unique=True, db_index=True, validators=[CallUsernameValidator()])
     ref = models.ForeignKey(Reference, models.SET_NULL, null=True, blank=True)
@@ -47,13 +53,14 @@ class ShadowCall(models.Model):
     def __str__(self):
         return self.username
 
+
 class User(AbstractUser):
     ref = models.ForeignKey(Reference, models.SET_NULL, null=True, blank=True)
     cat = models.ForeignKey(EntryCategory, models.SET_NULL, null=True, blank=True)
 
     location = models.CharField(max_length=128, default="", blank=True)
     opName = models.CharField(max_length=128, default="", blank=True)
-	regTime = models.DateTimeField(null=True, default=None)
+    regTime = models.DateTimeField(null=True, default=None, blank=True)
 
     # because of cbr parsing bug, we sometimes have users who only have 70cm qsos
     # we ignore the band for them when checking QSOs
@@ -72,7 +79,8 @@ class User(AbstractUser):
                                   help_text="Will you be QRV on 70cm during the contest?")
     extra2m70cm = models.BooleanField(default=False,
                                       verbose_name="Additional 2m/70cm TRX",
-                                        help_text="Will you bring an additional 2m/70cm TRX to lend to other participants?")
+                                      help_text="Will you bring an additional 2m/70cm TRX to lend to "
+                                                "other participants?")
 
     def __init__(self, *args, **kwargs):
         super(User, self).__init__(*args, **kwargs)
@@ -119,28 +127,34 @@ class User(AbstractUser):
             "qsoCount": qsos.count(),
             "refCount": len(refs)
         }
+
+
 signals.post_save.connect(checkForShadowCall, sender=User)
 
+
 class Band(models.Model):
     name = models.CharField(max_length=10)
-	contest = models.ForeignKey(Contest)
+    contest = models.ForeignKey(Contest, on_delete=models.CASCADE)
 
     def __str__(self):
         return self.name
 
+
 class Frequency(models.Model):
     # qrg
     # band
     channel = models.CharField(max_length=3)
     qrg = models.DecimalField(max_digits=7, decimal_places=3)
-	band = models.ForeignKey(Band)
+    band = models.ForeignKey(Band, on_delete=models.CASCADE)
 
     note = models.CharField(max_length=50, blank=True)
 
     def __str__(self):
         return "Channel %s: %s MHz" % (self.channel, self.qrg)
 
+
 class QSO(models.Model):
+    MAX_NO_VALUE = 1000000
     reportValidator = RegexValidator("[1-5][1-9]")
 
     class Meta:
@@ -148,24 +162,25 @@ class QSO(models.Model):
             ["owner", "call"],
         ]
 
-	owner = models.ForeignKey(User, db_index=True)
+    owner = models.ForeignKey(User, on_delete=models.CASCADE, db_index=True)
     time = models.DateTimeField(blank=True)
     call = models.CharField(max_length=20, db_index=True)
-	callRef = models.ForeignKey(User, models.SET_NULL, related_name='qsoref', null=True, blank=True, default=None)
-	band = models.ForeignKey(Band)
+    callRef = models.ForeignKey(User, on_delete=models.SET_NULL, related_name='qsoref', null=True, blank=True, default=None)
+    band = models.ForeignKey(Band, on_delete=models.CASCADE)
 
     reportTX = models.CharField(max_length=7, default=59, verbose_name='RS-S', validators=[reportValidator])
     reportRX = models.CharField(max_length=7, default=59, verbose_name='RS-R', validators=[reportValidator])
 
-	ownNo = models.IntegerField(verbose_name='No')
-	otherNo = models.IntegerField(verbose_name='No-R', null=True, blank=True)
+    ownNo = models.IntegerField(verbose_name='No', validators=[MinValueValidator(1), MaxValueValidator(MAX_NO_VALUE)])
+    otherNo = models.IntegerField(verbose_name='No-R', null=True, blank=True,
+                                  validators=[MinValueValidator(1), MaxValueValidator(MAX_NO_VALUE)])
 
     refStr = models.CharField(max_length=20, verbose_name="EXC")
-	ref = models.ForeignKey(Reference, models.SET_NULL, null=True, blank=True)
+    ref = models.ForeignKey(Reference, on_delete=models.SET_NULL, null=True, blank=True)
 
     remarks = models.CharField(max_length=50, blank=True, default=None)
 
-	cfmdQSO = models.ForeignKey("QSO", models.SET_NULL, null=True, blank=True, default=None)
+    cfmdQSO = models.ForeignKey("QSO", on_delete=models.SET_NULL, null=True, blank=True, default=None)
 
     CFMD_SEC = 5 * 60
 
@@ -221,7 +236,8 @@ class QSO(models.Model):
         if self.ref and self.callRef and self.callRef.ref and not self.cfmdQSO:
             # look for a matching line
             q = QSO.objects.filter(
-				(Q(time__lte=self.time + datetime.timedelta(seconds=self.CFMD_SEC)) & Q(time__gte=self.time - datetime.timedelta(seconds=self.CFMD_SEC))),
+                (Q(time__lte=self.time + datetime.timedelta(seconds=self.CFMD_SEC)) &
+                 Q(time__gte=self.time - datetime.timedelta(seconds=self.CFMD_SEC))),
                 owner=self.callRef,
                 callRef=self.owner,
                 owner__ref=self.ref,
@@ -243,4 +259,6 @@ class QSO(models.Model):
         super(QSO, self).save(*args, **kwargs)
 
     def __str__(self):
-		return "QSO no %s at %s on band %s from %s with %s@%s %s/%s" % (self.ownNo, self.time.strftime("%H:%M"), self.band, self.owner.username, self.call, self.refStr, self.reportTX, self.reportRX)
+        return "QSO no %s at %s on band %s from %s with %s@%s %s/%s" % (self.ownNo, self.time.strftime("%H:%M"),
+                                                                        self.band, self.owner.username, self.call,
+                                                                        self.refStr, self.reportTX, self.reportRX)

contest/urls.py

@@ -1,35 +1,22 @@
-"""cqtu URL Configuration
-
-The `urlpatterns` list routes URLs to views. For more information please see:
-    https://docs.djangoproject.com/en/1.10/topics/http/urls/
-Examples:
-Function views
-    1. Add an import:  from my_app import views
-    2. Add a URL to urlpatterns:  url(r'^$', views.home, name='home')
-Class-based views
-    1. Add an import:  from other_app.views import Home
-    2. Add a URL to urlpatterns:  url(r'^$', Home.as_view(), name='home')
-Including another URLconf
-    1. Import the include() function: from django.conf.urls import url, include
-    2. Add a URL to urlpatterns:  url(r'^blog/', include('blog.urls'))
-"""
-from django.conf.urls import url
+from django.urls import re_path
 
 
 import contest.views as contest_views
 from contest.cbrparser import uploadCBR
 
+app_name = 'context'
+
 urlpatterns = [
-	url(r'^$', contest_views.contestIndex, name='index'),
-	url(r'^regref/$', contest_views.registerRefs, name='registerRefs'),
-	url(r'^regref/edit/(?P<uid>\d+)/$', contest_views.updateRef, {"shadow": False}, name='updateRef'),
-	url(r'^regref/shadow/edit/(?P<uid>\d+)/$', contest_views.updateRef, {"shadow": True}, name='updateShadowRef'),
-	url(r'^regref/qsos/all/$', contest_views.viewAllQSOs, name='viewAllQSOs'),
-	url(r'^regref/qsos/user/(?P<uid>\d+)/$', contest_views.viewUserQSOs, name='viewUserQSOs'),
-	url(r'^overview/$', contest_views.overview, name='overview'),
-	url(r'^log/$', contest_views.log, name='log'),
-	url(r'^log/edit/(?P<qsoid>\d+)/$', contest_views.logEdit, name='logEdit'),
-	url(r'^log/delete/(?P<qsoid>\d+)/$', contest_views.logDelete, name='logDelete'),
-	url(r'^uploadcbr/$', uploadCBR, name='uploadCBR'),
-	url(r'^regref/recheckqsos/$', contest_views.recheckAllQSOs, name='recheckAllQSOs'),
+    re_path(r'^$', contest_views.contestIndex, name='index'),
+    re_path(r'^regref/$', contest_views.registerRefs, name='registerRefs'),
+    re_path(r'^regref/edit/(?P<uid>\d+)/$', contest_views.updateRef, {"shadow": False}, name='updateRef'),
+    re_path(r'^regref/shadow/edit/(?P<uid>\d+)/$', contest_views.updateRef, {"shadow": True}, name='updateShadowRef'),
+    re_path(r'^regref/qsos/all/$', contest_views.viewAllQSOs, name='viewAllQSOs'),
+    re_path(r'^regref/qsos/user/(?P<uid>\d+)/$', contest_views.viewUserQSOs, name='viewUserQSOs'),
+    re_path(r'^overview/$', contest_views.overview, name='overview'),
+    re_path(r'^log/$', contest_views.log, name='log'),
+    re_path(r'^log/edit/(?P<qsoid>\d+)/$', contest_views.logEdit, name='logEdit'),
+    re_path(r'^log/delete/(?P<qsoid>\d+)/$', contest_views.logDelete, name='logDelete'),
+    re_path(r'^uploadcbr/$', uploadCBR, name='uploadCBR'),
+    re_path(r'^regref/recheckqsos/$', contest_views.recheckAllQSOs, name='recheckAllQSOs'),
 ]

contest/validators.py

@@ -1,28 +1,25 @@
 from django.core import validators
-from django.utils import six
 from django.utils.deconstruct import deconstructible
-from django.utils.translation import ugettext_lazy as _
+from django.utils.translation import gettext_lazy as _
 
 import re
 
 
 @deconstructible
 class CallUsernameValidator(validators.RegexValidator):
-    #regex = r'^[\w.@+-]+$'
     regex = r'^(?:[A-Z]+/)?[A-Z]{1,2}[0-9][A-Z]{1,4}(?:-[0-9])??$'
     message = _(
         'Enter a valid Callsign as Username, ALL UPPERCASE, if needed with -1 / -2,'
         'e.g. DL7BST, DN1BER-1, DL/OE1FOO.'
     )
-    flags = re.ASCII if six.PY3 else 0
+    flags = re.ASCII
+
 
 @deconstructible
 class CallLogValidator(validators.RegexValidator):
-    #regex = r'^[\w.@+-]+$'
     regex = r'^(?:[A-Z]+/)?[A-Z]{1,2}[0-9][A-Z]{1,4}(?:-[0-9])?(?:/[A-Z]{1,3})?$'
     message = _(
         'Enter a valid callsign, ALL UPPERCASE, if needed with -1 / -2,'
         'e.g. DL7BST, DN1BER-1, DL/OE1FOO, DN1FTW-1/p'
     )
-    flags = re.ASCII if six.PY3 else 0
-
+    flags = re.ASCII

contest/views.py

@@ -1,8 +1,8 @@
-from django.shortcuts import render, get_object_or_404
+import datetime
 
+from django.shortcuts import render, get_object_or_404
 from django.contrib.auth.decorators import login_required
 from django.contrib.admin.views.decorators import staff_member_required
-#from django.db.models import Q
 from django.contrib.auth.forms import AuthenticationForm, PasswordChangeForm
 from django.http import HttpResponseRedirect
 from django.contrib import messages
@@ -11,19 +11,18 @@ from django.contrib.auth import login as auth_login
 from django.core.paginator import Paginator, EmptyPage, PageNotAnInteger
 from django.utils import timezone
 
-
-
-import datetime
-
 from .models import User, Contest, Frequency, Reference, QSO, ShadowCall
-from .forms import UpdateRefForm, QSOForm, QSOFormWithTime, CustomUserCreationForm, ShadowCallAddForm, UpdateCategoryForm
+from .forms import UpdateRefForm, QSOForm, QSOFormWithTime, CustomUserCreationForm, ShadowCallAddForm, \
+    UpdateCategoryForm
+
 
 def index(request):
-	if request.user.is_authenticated():
+    if request.user.is_authenticated:
         return HttpResponseRedirect(reverse("contest:index"))
 
     return render(request, "index.html", {"loginForm": AuthenticationForm()})
 
+
 @login_required
 def contestIndex(request):
     qsoform = QSOForm(request.user)
@@ -32,6 +31,7 @@ def contestIndex(request):
 
     return render(request, 'contest/index.html', {"qsoform": qsoform, "contest": contest, "qrgs": qrgs})
 
+
 @login_required
 def log(request):
     if not request.user.ref:
@@ -68,9 +68,9 @@ def log(request):
         form = QSOForm(request.user, initial=data)
         form.helper.form_tag = False
 
-
     return render(request, 'contest/log.html', {'form': form, 'qsos': qsos})
 
+
 @login_required
 def logEdit(request, qsoid):
     if not request.user.ref:
@@ -91,6 +91,7 @@ def logEdit(request, qsoid):
 
     return render(request, 'contest/logEdit.html', {'form': form, "qso": qso})
 
+
 def logDelete(request, qsoid):
     if not request.user.ref:
         return HttpResponseRedirect(reverse("contest:index"))
@@ -109,7 +110,6 @@ def logDelete(request, qsoid):
     return render(request, 'contest/logDelete.html', {"qso": qso})
 
 
-
 @staff_member_required
 def registerRefs(request):
     allUser = User.objects.all()
@@ -127,7 +127,9 @@ def registerRefs(request):
     else:
         shadowForm = ShadowCallAddForm()
 
-	return render(request, 'contest/registerRefs.html', {'alluser': allUser, "qsos": qsos, "shadowForm": shadowForm, "shadows": shadows})
+    return render(request, 'contest/registerRefs.html',
+                  {'alluser': allUser, "qsos": qsos, "shadowForm": shadowForm, "shadows": shadows})
+
 
 def getPage(paginator, pageNo):
     try:
@@ -153,6 +155,7 @@ def recheckAllQSOs(request):
 
     return render(request, "contest/checkAllQSOs.html", {})
 
+
 @staff_member_required
 def viewUserQSOs(request, uid, page=1):
     user = get_object_or_404(User, id=uid)
@@ -162,7 +165,9 @@ def viewUserQSOs(request, uid, page=1):
 
     userRefs = set(map(lambda _x: _x["refStr"], user.qso_set.filter(ref__isnull=False).values("ref", "refStr")))
 
-	return render(request, "contest/viewUserQSOs.html", {'owner': user, 'qsos': qsos, 'qsoPage': qsoPage, 'userRefs': userRefs})
+    return render(request, "contest/viewUserQSOs.html",
+                  {'owner': user, 'qsos': qsos, 'qsoPage': qsoPage, 'userRefs': userRefs})
+
 
 @staff_member_required
 def updateRef(request, shadow, uid):
@@ -208,6 +213,7 @@ def updateRef(request, shadow, uid):
 
     return render(request, 'contest/updateRef.html', {'userobj': user, 'form': form, "shadow": shadow})
 
+
 @staff_member_required
 def viewAllQSOs(request, page=1):
     qsos = QSO.objects.all().order_by("-time")
@@ -216,12 +222,14 @@ def viewAllQSOs(request, page=1):
 
     return render(request, 'contest/viewAllQSOs.html', {'qsoPage': qsoPage})
 
+
 def overview(request):
     # FIXME: Hardcoded for cqtu... everywhere
     c = Contest.objects.get(id=1)
     qrgs = Frequency.objects.filter(band__contest=c).order_by("channel")
     return render(request, 'contest/overview.html', {'contest': c, 'qrgs': qrgs})
 
+
 def register(request):
     form = None
     if request.method == 'POST':
@@ -237,6 +245,7 @@ def register(request):
 
     return render(request, 'registration/register.html', {"form": form})
 
+
 @login_required
 def profile(request):
     pwForm = None

cqtu/settings.py

@@ -40,11 +40,13 @@ INSTALLED_APPS = [
     'django.contrib.sessions',
     'django.contrib.messages',
     'django.contrib.staticfiles',
-	
     'crispy_forms',
+    'rest_framework',
+    'django_filters',
 
     # local
     'contest',
+    'api',
 ]
 
 MIDDLEWARE = [
@@ -105,12 +107,6 @@ AUTH_PASSWORD_VALIDATORS = [
             'min_length': 4,
         },
     },
-    #{
-    #    'NAME': 'django.contrib.auth.password_validation.CommonPasswordValidator',
-    #},
-    #{
-    #    'NAME': 'django.contrib.auth.password_validation.NumericPasswordValidator',
-    #},
 ]
 
 
@@ -143,3 +139,6 @@ MESSAGE_TAGS = {
     messages.ERROR: 'danger',
 }
 
+REST_FRAMEWORK = {
+    'DEFAULT_FILTER_BACKENDS': ['django_filters.rest_framework.DjangoFilterBackend']
+}

cqtu/urls.py

@@ -1,42 +1,18 @@
-"""cqtu URL Configuration
-
-The `urlpatterns` list routes URLs to views. For more information please see:
-    https://docs.djangoproject.com/en/1.10/topics/http/urls/
-Examples:
-Function views
-    1. Add an import:  from my_app import views
-    2. Add a URL to urlpatterns:  url(r'^$', views.home, name='home')
-Class-based views
-    1. Add an import:  from other_app.views import Home
-    2. Add a URL to urlpatterns:  url(r'^$', Home.as_view(), name='home')
-Including another URLconf
-    1. Import the include() function: from django.conf.urls import url, include
-    2. Add a URL to urlpatterns:  url(r'^blog/', include('blog.urls'))
-"""
-from django.conf.urls import url, include
+from django.urls import include, path
 from django.contrib import admin
-
 from django.contrib.auth import views as auth_views
-#from django.views.generic.edit import CreateView
-#from django.contrib.auth.forms import UserCreationForm
 
-#from contest.forms import CustomUserCreationForm
 from contest.views import index, register, profile
 
 
-
 urlpatterns = [
-	url('^$', index, name="index"),
-	url('^cqtufm2019/', include('contest.urls', namespace='contest')),
+    path('', index, name="index"),
+    path('cqtufm2019/', include('contest.urls', namespace='contest')),
 
-    url(r'^admin/', admin.site.urls),
-	url(r'^login/$', auth_views.login, name='login'),
-	url(r'^logout/$', auth_views.logout, {'next_page': '/'}, name='logout'),
-	url(r'^register/$', register, name='register'),
-	url(r'^profile/$', profile, name='profile'),
-	#url(r'^register/$', CreateView.as_view(
-	#			template_name='registration/register.html',
-	#			form_class=CustomUserCreationForm,
-	#			success_url='/',
-	#), name='register'),
+    path('admin/', admin.site.urls),
+    path('login/', auth_views.LoginView.as_view(), name='login'),
+    path('logout/', auth_views.LogoutView.as_view(), {'next_page': '/'}, name='logout'),
+    path('register/', register, name='register'),
+    path('profile/', profile, name='profile'),
+    path('api/', include('api.urls')),
 ]

requirements.txt

@@ -1,2 +1,4 @@
-Django==1.10
+Django==4.0.1
 django-crispy-forms
+django-rest-framework
+django-filter

templates/base.html

@@ -8,7 +8,7 @@
     <meta name="description" content="">
     <meta name="author" content="">
     <link rel="icon" href="/favicon.ico">
-	{% load staticfiles %}
+	{% load static %}
 
     <title>CQTUFM2019 - CQ TU FM Contest 2019</title>
 

templates/registration/register.html

@@ -10,7 +10,10 @@
 			<div class="panel-body">
 				<p>
 				Please register with your (uppercase) Callsign as Usernames.
-				For DN-Calls, -[0-9] is allowed.
+				For DN-Calls, -[0-9] is allowed (e.g. DN1ABC-2 for the second group).
+				</p>
+                <p>
+                Note: If you are a <strong>Ham/OM/YL</strong> please with your <strong>own</strong> callsign (e.g. DL7DOC). If you are a <strong>SWL</strong>, please use the <strong>DN-Call provided</strong> by your operator.
                 </p>
 				<form method="POST" action="{% url 'register' %}">
 				{% csrf_token %}