Link access code create in restricted track view

closes #820

doc/changelog.rst

@@ -3,6 +3,7 @@
 Release Notes
 =============
 
+- :feature:`orga,820` Restricted tracks now link to the page where you can create access codes for that track.
 - :announcement`admin,1678` Due to its incomplete and complex nature, the ``import_schedule`` admin command has been removed. If you want to import a schedule, despite all the complexities, please use the pretalx-downstream plugin instead.
 - :feature:`orga,1672` The organiser area now has a search box located in the side bar, opened after clicking the event name. It searches all events the current user has full access to (that is, not a limited reviewer account) for events, sessions and speakers.
 - :feature:`orga:review,1633` Resources uploaded or linked by speakers are now shown in the review view (unless anonymous reviews are used, as resources can currently not be anonymised).

src/pretalx/orga/forms/cfp.py

@@ -356,6 +356,11 @@ def __init__(self, *args, event=None, **kwargs):
         self.event = event
         super().__init__(*args, **kwargs)
         self.fields["color"].widget.attrs["class"] = "colorpickerfield"
+        if self.instance.pk:
+            url = f"{event.cfp.urls.new_access_code}?track={self.instance.pk}"
+            self.fields["requires_access_code"].help_text += " " + _(
+                'You can create an access code <a href="{url}">here</a>.'
+            ).format(url=url)
 
     def clean_name(self):
         name = self.cleaned_data["name"]

src/pretalx/orga/templates/orga/cfp/track_view.html

@@ -30,12 +30,12 @@ <h2>{% translate "Tracks" %}</h2>
                 {% for track in tracks %}
                     <tr>
                         <td>
-                            {% if track.requires_access_code %}
-                                <i class="fa fa-lock" title="{% translate "Requires access code" %}"></i>
-                            {% endif %}
                             <a href="{{ track.urls.edit }}">
                                 {{ track.name }}
                             </a>
+                            {% if track.requires_access_code %}
+                                <i class="fa fa-lock ml-1" title="{% translate "Requires access code" %}"></i>
+                            {% endif %}
                         </td>
                         <td><div class="color-square" style="background: {{ track.color }}"></div></td>
                         <td class="numeric">

src/pretalx/orga/views/cfp.py

@@ -615,6 +615,12 @@ def get_object(self):
     def get_form_kwargs(self):
         result = super().get_form_kwargs()
         result["event"] = self.request.event
+        if result.get("instance"):
+            return result
+        if track := self.request.GET.get("track"):
+            track = self.request.event.tracks.filter(pk=track).first()
+            if track:
+                result["initial"]["track"] = track
         return result
 
     def get_permission_object(self):