misc: allow lowercase letters in tracking codes (#26429)

tests/test_form_pages.py

@@ -1297,6 +1297,16 @@ def test_form_tracking_code(pub):
     resp = resp.forms[0].submit()
     assert formdef.data_class().get(formdata_id).evolution[-1].comment == 'hello world'
 
+    # check we can also use it with lowercase letters.
+    # check we can still go back to it
+    app = get_app(pub)
+    resp = app.get('/')
+    resp.forms[0]['code'] = tracking_code.lower()
+    resp = resp.forms[0].submit()
+    assert resp.location == 'http://example.net/code/%s/load' % tracking_code.lower()
+    resp = resp.follow()
+    assert resp.location == 'http://example.net/test/%s' % formdata_id
+
 def test_form_tracking_code_as_user(pub):
     user = create_user(pub)
     formdef = create_formdef()

wcs/sql.py

@@ -1880,6 +1880,10 @@ class TrackingCode(SqlMixin, wcs.tracking_code.TrackingCode):
 
     id = None
 
+    @classmethod
+    def get(cls, id, **kwargs):
+        return super(TrackingCode, cls).get(id.upper(), **kwargs)
+
     @guard_postgres
     @invalidate_substitution_cache
     def store(self):

wcs/tracking_code.py

@@ -34,6 +34,10 @@ class TrackingCode(StorableObject):
         # self.id set at this point.
         pass
 
+    @classmethod
+    def get(cls, id, **kwargs):
+        return super(TrackingCode, cls).get(id.upper(), **kwargs)
+
     @classmethod
     def get_new_id(cls, create=False):
         r = random.SystemRandom()