Add quick-start assistant for new users (#833)

* First draft for quick-setup

* Add payment

* Fix stripe w/o connect

* cols

* Add tests

src/pretix/plugins/banktransfer/payment.py

@@ -14,9 +14,9 @@ class BankTransfer(BasePaymentProvider):
     identifier = 'banktransfer'
     verbose_name = _('Bank transfer')
 
-    @property
-    def settings_form_fields(self):
-        form_field = I18nFormField(
+    @staticmethod
+    def form_field(**kwargs):
+        return I18nFormField(
             label=_('Bank account details'),
             widget=I18nTextarea,
             help_text=_('Include everything that your customers need to send you a bank transfer payment. Within SEPA '
@@ -30,10 +30,14 @@ class BankTransfer(BasePaymentProvider):
                     'Account owner: John Doe\n'
                     'Name of Bank: Professional Banking Institute Ltd., London'
                 )
-            }}
+            }},
+            **kwargs
         )
+
+    @property
+    def settings_form_fields(self):
         d = OrderedDict(
-            list(super().settings_form_fields.items()) + [('bank_details', form_field)]
+            list(super().settings_form_fields.items()) + [('bank_details', self.form_field())]
         )
         d.move_to_end('bank_details', last=False)
         d.move_to_end('_enabled', last=False)

src/pretix/plugins/stripe/payment.py

@@ -51,25 +51,31 @@ class StripeSettingsHolder(BasePaymentProvider):
         super().__init__(event)
         self.settings = SettingsSandbox('payment', 'stripe', event)
 
+    def get_connect_url(self, request):
+        request.session['payment_stripe_oauth_event'] = request.event.pk
+        if 'payment_stripe_oauth_token' not in request.session:
+            request.session['payment_stripe_oauth_token'] = get_random_string(32)
+        return (
+            "https://connect.stripe.com/oauth/authorize?response_type=code&client_id={}&state={}"
+            "&scope=read_write&redirect_uri={}"
+        ).format(
+            self.settings.connect_client_id,
+            request.session['payment_stripe_oauth_token'],
+            urlquote(build_global_uri('plugins:stripe:oauth.return')),
+        )
+
     def settings_content_render(self, request):
         if self.settings.connect_client_id and not self.settings.secret_key:
             # Use Stripe connect
             if not self.settings.connect_user_id:
-                request.session['payment_stripe_oauth_event'] = request.event.pk
-                if 'payment_stripe_oauth_token' not in request.session:
-                    request.session['payment_stripe_oauth_token'] = get_random_string(32)
-
                 return (
                     "<p>{}</p>"
-                    "<a href='https://connect.stripe.com/oauth/authorize?response_type=code&client_id={}&state={}"
-                    "&scope=read_write&redirect_uri={}' class='btn btn-primary btn-lg'>{}</a>"
+                    "<a href='{}' class='btn btn-primary btn-lg'>{}</a>"
                 ).format(
                     _('To accept payments via Stripe, you will need an account at Stripe. By clicking on the '
                       'following button, you can either create a new Stripe account connect pretix to an existing '
                       'one.'),
-                    self.settings.connect_client_id,
-                    request.session['payment_stripe_oauth_token'],
-                    urlquote(build_global_uri('plugins:stripe:oauth.return')),
+                    self.get_connect_url(request),
                     _('Connect with Stripe')
                 )
             else:

src/pretix/plugins/stripe/views.py

@@ -93,6 +93,10 @@ def oauth_return(request, *args, **kwargs):
             event.settings.payment_stripe_connect_user_id = data['stripe_user_id']
             event.settings.payment_stripe_connect_user_name = account['business_name']
 
+            if request.session.get('payment_stripe_oauth_enable', False):
+                event.settings.payment_stripe__enabled = True
+                del request.session['payment_stripe_oauth_enable']
+
     return redirect(reverse('control:event.settings.payment.provider', kwargs={
         'organizer': event.organizer.slug,
         'event': event.slug,