transport_needed: BooleanField -> NullBooleanField

accounts/migrations/0011_auto_20161005_1841.py

@@ -0,0 +1,35 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.10 on 2016-10-05 18:41
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+
+
+def transport_false_to_none(apps, schema_editor):
+    db_alias = schema_editor.connection.alias
+    Participation = apps.get_model('accounts', 'Participation')
+    for participation in Participation.objects.using(db_alias).all():
+        if participation.need_transport == False:
+            participation.need_transport = None
+            participation.save()
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('accounts', '0010_auto_20161003_1152'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='participation',
+            name='need_transport',
+            field=models.NullBooleanField(default=None, verbose_name='Need transport?'),
+        ),
+        migrations.RunPython(transport_false_to_none),
+        migrations.AlterField(
+            model_name='participation',
+            name='notes',
+            field=models.TextField(blank=True, default='', help_text='This field is only visible by organizers.', verbose_name='Notes'),
+        ),
+    ]

accounts/models.py

@@ -51,7 +51,7 @@ class Participation(PonyConfModel):
     user = models.ForeignKey(User)
 
 
-    need_transport = models.BooleanField(verbose_name=_('Need transport?'), default=False)
+    need_transport = models.NullBooleanField(verbose_name=_('Need transport?'), default=None)
     arrival = models.DateTimeField(blank=True, null=True)
     departure = models.DateTimeField(blank=True, null=True)
     transport = models.ManyToManyField(Transport, verbose_name=_("I'm ok to travel by"), blank=True)

proposals/templates/proposals/speaker_list.html

@@ -60,10 +60,14 @@
                 {% for transport in speaker.transport.all %}
                     {% if not forloop.first %}, {% endif %}
                     {{ transport }}
+                {% empty %}
+                Yes
                 {% endfor %}
             </td>
+            {% elif speaker.need_transport is None %}
+            <td>?</td>
             {% else %}
-            <td>—</td>
+            <td>No</td>
             {% endif %}
             {% if speaker.need_hosting %}
             <td class="{% if speaker.hosting_booked %}success{% else %}warning{% endif %}">

proposals/templates/proposals/user_details.html

@@ -27,7 +27,7 @@
 <h2>{% trans "Preferences" %}</h2>
 
 <ul>
-    <li><b>{% trans "Need transport:" %}</b> {{ participation.need_transport|yesno }}</li>
+    <li><b>{% trans "Need transport:" %}</b> {{ participation.need_transport|yesno:"Yes,No,Not specified" }}</li>
     <li><b>{% trans "Arrival:" %}</b> {{ participation.arrival }}</li>
     <li><b>{% trans "Departure:" %}</b> {{ participation.departure }}</li>
     <li><b>{% trans "Ok to travel by:" %}</b> {% for transport in participation.transport.all %}{% if not forloop.first %}, {% endif %}{{ transport }}{% endfor %}</li>