Allow signup with threshold. Close #4

friends_map/settings.py

@@ -160,4 +160,6 @@ CRISPY_TEMPLATE_PACK = 'bootstrap4'
 LOGOUT_REDIRECT_URL = '/'
 LOGIN_REDIRECT_URL = '/'
 
+USER_THRESHOLD = os.getenv('USER_THRESHOLD', 10)
+
 django_heroku.settings(locals(), allowed_hosts=False, databases=DJANGO_ENV == 'prod')

map/forms.py

@@ -1,4 +1,5 @@
 from django import forms
+from django.contrib.auth.forms import UserCreationForm
 
 from map.models import FriendLocation, Friend
 
@@ -35,3 +36,10 @@ class LocationSharingForm(forms.ModelForm):
         self.request = request
         self.fields['shares_location_to'].queryset = Friend.objects.exclude(pk=request.user.pk)
         self.fields['shares_location_to'].label = 'Share location to'
+
+
+class FriendCreationForm(UserCreationForm):
+    class Meta(UserCreationForm.Meta):
+        model = Friend
+        fields = UserCreationForm.Meta.fields
+

map/templates/map/base_change.html

@@ -4,6 +4,7 @@
 {% block content %}
     {% block notice %}
     {% endblock %}
+    {% block form %}
         <form method="post">
             {% csrf_token %}
             {{ form|crispy }}
@@ -11,4 +12,5 @@
                 <button type="submit" class="btn btn-primary">Save</button>
             {% endblock %}
         </form>
+    {% endblock %}
 {% endblock %}

map/templates/map/change_profile.html

@@ -26,6 +26,7 @@
 {% endblock %}
 
 {% block form-buttons %}
+    <button type="submit" class="btn btn-primary">Save</button>
     <a href="{% url 'password_change' %}" class="btn btn-secondary">Change your password</a>
     <a href="{% url 'delete-profile' %}" class="btn btn-warning">Permanently delete your profile</a>
 {% endblock %}

map/templates/registration/login.html

@@ -9,5 +9,6 @@
         {% csrf_token %}
         {{ form|crispy }}
         <button type="submit" class="btn btn-primary">Login</button>
+        <a href="{% url 'signup' %}" class="btn btn-secondary">I don't have an account</a>
     </form>
 {% endblock %}

map/templates/registration/signup.html

@@ -0,0 +1,48 @@
+{% extends 'map/change_profile.html' %}
+{% load crispy_forms_filters %}
+
+{% block title %}Create your profile{% endblock %}
+{% block h1 %}Create your profile{% endblock %}
+
+{% block notice %}
+    {% if registration_disallowed %}
+        <div class="alert alert-warning">
+            <h4 class="alert-heading">Notice</h4>
+            <div>
+                Registration is currently not allowed. Thanks for your interest, please come back later.
+            </div>
+        </div>
+    {% else %}
+        <div class="alert alert-info">
+            <h4 class="alert-heading">Notice</h4>
+            <div>
+                The only required field is your username, which you can customize nearly freely.
+                If you choose to add your first and last name, they will be displayed on the map and on the right of the
+                navbar, at the top. If you don't, your username will be displayed instead.
+                <br>
+                Your email address will only ever be used to communicate account-related information. It will never be
+                sold
+                or used to spam you. You can choose not to communicate your email address.
+            </div>
+            <hr>
+            <div>
+                You can also permanently delete your profile using the button at the bottom of this page.
+                This will prompt you for confirmation about <strong>permanently</strong> and
+                <strong>immediately</strong>
+                deleting your profile, meaning that we will not be able to retrieve
+                your data if you change your mind.
+            </div>
+        </div>
+    {% endif %}
+{% endblock %}
+{% block form %}
+    {% if not registration_disallowed %}
+        <form method="post">
+            {% csrf_token %}
+            {{ form|crispy }}
+            {% block form-buttons %}
+                <button type="submit" class="btn btn-primary">Save</button>
+            {% endblock %}
+        </form>
+    {% endif %}
+{% endblock %}

map/urls.py

@@ -8,6 +8,7 @@ urlpatterns = [
     path('add-location', views.AddLocationView.as_view(), name='add-location'),
     path('delete-location', views.DeleteLocationView.as_view(), name='delete-location'),
     path('share-location', views.LocationSharingView.as_view(), name='share-location'),
+    path('accounts/signup', views.SignupView.as_view(), name='signup'),
     path('accounts/profile', views.UpdateProfileView.as_view(), name='change-profile'),
     path('accounts/profile/delete', views.DeleteProfileView.as_view(), name='delete-profile'),
 ]

map/views.py

@@ -1,11 +1,13 @@
+from django.conf import settings
 from django.contrib import messages
 from django.contrib.auth.mixins import LoginRequiredMixin
 from django.urls import reverse_lazy
 from django.views import generic
 
 from map import models
-from map.forms import LocationForm, LocationSharingForm
+from map.forms import LocationForm, LocationSharingForm, FriendCreationForm
 from map.mixins import QuickActionsMixin
+from map.models import Friend
 
 
 class MapView(LoginRequiredMixin, QuickActionsMixin, generic.DetailView):
@@ -111,6 +113,29 @@ class DeleteLocationView(LoginRequiredMixin, generic.DeleteView):
         return super().get_success_url()
 
 
+class SignupView(generic.CreateView):
+    model = models.Friend
+    template_name = 'registration/signup.html'
+    success_url = reverse_lazy('login')
+    form_class = FriendCreationForm
+
+    def get_context_data(self, **kwargs):
+        context = super().get_context_data(**kwargs)
+        context['registration_disallowed'] = Friend.objects.count() >= settings.USER_THRESHOLD
+        return context
+
+    def post(self, request, *args, **kwargs):
+        if Friend.objects.count() >= settings.USER_THRESHOLD:
+            raise Exception('No more users allowed')
+        return super().post(request, *args, **kwargs)
+
+    def get_success_url(self):
+        self.object.is_active = False
+        self.object.save()
+        messages.success(self.request, 'Your profile has been successfully created, wait for approval.')
+        return super().get_success_url()
+
+
 class UpdateProfileView(LoginRequiredMixin, QuickActionsMixin, generic.UpdateView):
     model = models.Friend
     context_object_name = 'friend'