added poll deletion

wortschlucker/templates/poll_admin_details.html

@@ -19,6 +19,7 @@
                 <li py:for="key, value in poll.get_settings().items()">${key}: ${value}</li>
             </ul></li>
             <li><a href="${poll.get_edit_url()}" title="edit this poll">Edit this poll</a></li>
+            <li><a href="${poll.get_delete_url()}" title="delete this poll">Delete this poll</a></li>
         </ul>
     </body>
 </html>

wortschlucker/wortschlucker.py

@@ -77,6 +77,15 @@ class Poll(sqlobject.SQLObject):
     def get_num_of_submissions(self):
         return WordSubmission.selectBy(poll_id=self.id).count()
 
+    def delete_poll(self):
+        submissions = WordSubmission.selectBy(poll_id=self.id)
+        settings = PollSetting.selectBy(poll_id=self.id)
+        for submission in submissions:
+            submission.destroySelf()
+        for setting in settings:
+            setting.destroySelf()
+        self.destroySelf()
+
     def get_url(self):
         return "%spolls/%s" % (BASE_DICT["base_url"], self.hash_key)
 
@@ -86,6 +95,9 @@ class Poll(sqlobject.SQLObject):
     def get_edit_url(self):
         return "%spolls/%s/admin" % (BASE_DICT["base_url"], self.admin_hash_key)
 
+    def get_delete_url(self):
+        return "%spolls/%s/delete" % (BASE_DICT["base_url"], self.admin_hash_key)
+
     def get_creation_time_string(self):
         return str(self.timestamp_creation)
 
@@ -171,6 +183,14 @@ def new_poll(submit=None, cancel=None, author=None, title=None, description=None
             new_poll = Poll(hash_key=hash_key, admin_hash_key=admin_hash_key, timestamp_creation=now, **data)
             return bobo.redirect(new_poll.get_admin_url())
 
+@bobo.query('/polls/:admin_hash_key/delete')
+def delete_poll(admin_hash_key=None):
+    admin_poll_id = get_poll_admin_id(admin_hash_key)
+    if not admin_poll_id is None:
+        poll = Poll.get(admin_poll_id)
+        poll.delete_poll()
+    return bobo.redirect(BASE_DICT["base_url"])
+
 @bobo.query('/polls/:admin_hash_key/admin')
 def admin_poll(cancel=False, submit=None, admin_hash_key=None, author=None, title=None, description=None, **kwargs):
     value_dict = get_default_values()