Add trial field to billing

Signed-off-by: Michal Čihař <michal@cihar.com>

weblate/billing/admin.py

@@ -33,14 +33,14 @@ class PlanAdmin(admin.ModelAdmin):
 
 class BillingAdmin(admin.ModelAdmin):
     list_display = (
-        'user', 'plan',
+        'user', 'plan', 'trial',
         'list_projects',
         'count_changes_1m', 'count_changes_1q', 'count_changes_1y',
         'count_repositories', 'count_strings', 'count_words',
         'count_languages',
         'in_limits',
     )
-    list_filter = ('plan', )
+    list_filter = ('plan', 'trial')
     search_fields = ('user__username', 'projects__name')
 
     def list_projects(self, obj):

weblate/billing/migrations/0005_billing_trial.py

+# -*- coding: utf-8 -*-
+# Generated by Django 1.9 on 2015-12-22 12:56
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('billing', '0004_auto_20150917_1521'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='billing',
+            name='trial',
+            field=models.BooleanField(default=False),
+        ),
+    ]

weblate/billing/models.py

@@ -49,6 +49,7 @@ class Billing(models.Model):
     plan = models.ForeignKey(Plan)
     user = models.OneToOneField(User)
     projects = models.ManyToManyField(Project, blank=True)
+    trial = models.BooleanField(default=False)
 
     def __unicode__(self):
         return u'{0} ({1})'.format(self.user, self.plan)