conference model: add subscriptions open field

proposals/forms.py

@@ -180,7 +180,7 @@ class TrackForm(forms.ModelForm):
 
 
 ConferenceForm = modelform_factory(Conference,
-                    fields=['cfp_opening_date', 'cfp_closing_date', 'venue', 'city', 'home'],
+                    fields=['cfp_opening_date', 'cfp_closing_date', 'subscriptions_open', 'venue', 'city', 'home'],
                     widgets={
                         'cfp_opening_date': forms.TextInput(),
                         'cfp_closing_date': forms.TextInput(),

proposals/migrations/0027_conference_subscriptions_open.py

@@ -0,0 +1,20 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.10 on 2016-11-07 22:05
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('proposals', '0026_auto_20161106_2319'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='conference',
+            name='subscriptions_open',
+            field=models.BooleanField(default=False),
+        ),
+    ]

proposals/models.py

@@ -28,6 +28,7 @@ class Conference(models.Model):
     city = models.CharField(max_length=64, blank=True, default="")
     cfp_opening_date = models.DateTimeField(null=True, blank=True, default=None)
     cfp_closing_date = models.DateTimeField(null=True, blank=True, default=None)
+    subscriptions_open = models.BooleanField(default=False)
 
     def cfp_is_open(self):
         now = timezone.now()