Create migrate_tips function

gratipay/models/team.py

@@ -50,3 +50,19 @@ def create_new(cls, owner, fields):
               fields['product_or_service'], fields['getting_involved'], fields['getting_paid'],
               owner.username))
 
+    def migrate_tips(self):
+        self.db.run("""
+
+            INSERT INTO subscriptions
+                        (ctime, mtime, subscriber, team, amount, is_funded)
+                 SELECT ctime
+                      , mtime
+                      , tipper
+                      , %(slug)s
+                      , amount
+                      , is_funded
+                   FROM current_tips
+                  WHERE tippee=%(owner)s
+
+        """, {'slug': self.slug, 'owner': self.owner})
+

tests/py/test_teams.py

@@ -87,7 +87,7 @@ def test_error_message_for_slug_collision(self):
     def test_migrate_tips_to_subscriptions(self):
         alice = self.make_participant('alice', claimed_time='now')
         bob = self.make_participant('bob', claimed_time='now')
-        old_team = self.make_participant('old_team')
+        self.make_participant('old_team')
         alice.set_tip_to('old_team', '1.00')
         bob.set_tip_to('old_team', '2.00')
         new_team = self.make_team('new_team', owner='old_team')
@@ -96,7 +96,12 @@ def test_migrate_tips_to_subscriptions(self):
 
         subscriptions = self.db.all("SELECT * FROM subscriptions")
         assert len(subscriptions) == 2
-        # Check for details
+        assert subscriptions[0].subscriber == 'alice'
+        assert subscriptions[0].team == 'new_team'
+        assert subscriptions[0].amount == 1
+        assert subscriptions[1].subscriber == 'bob'
+        assert subscriptions[1].team == 'new_team'
+        assert subscriptions[1].amount == 2
 
 
 class TestOldTeams(Harness):