implemented UI part of Condorcet voting

wortschlucker/src/forms.py

@@ -17,6 +17,10 @@ class SubmitForm(formencode.Schema):
     submitter = formencode.validators.UnicodeString(strip=True, not_empty=True)
     content = formencode.validators.UnicodeString(strip=True, not_empty=True)
 
+class VoteSubmissionOrderForm(formencode.Schema):
+    submitter = formencode.validators.UnicodeString(strip=True, not_empty=True)
+    vote_order = formencode.validators.UnicodeString(strip=True)
+
 class ProfileForm(formencode.Schema):
     email = formencode.validators.Email(resolve_domain=True, strip=True, not_empty=True)
 

wortschlucker/src/wortschlucker.py

@@ -104,6 +104,12 @@ class ContentSubmission(sqlobject.SQLObject):
         return hashlib.md5(str(self.id)).hexdigest()
 
 
+class VoteOrder(sqlobject.SQLObject):
+    submitter = sqlobject.UnicodeCol()
+    content_submission_id = sqlobject.ForeignKey("ContentSubmission")
+    priority = sqlobject.IntCol()
+
+
 class Profile(sqlobject.SQLObject):
     email = sqlobject.UnicodeCol(unique=True)
     hash_key = sqlobject.StringCol(unique=True)
@@ -198,6 +204,14 @@ class Poll(sqlobject.SQLObject):
         if (key == 'public') and (value > 0):
             self.announce_via_twitter()
 
+    def get_ordered_submissions(self, submitter):
+        votes = []
+        for submission in ContentSubmission.selectBy(poll_id=self.id):
+            votes.extend(list(VoteOrder.selectBy(content_submission_id=submission,
+                submitter=submitter)))
+        votes.sort(key=lambda item: item.priority)
+        return [order.content_submission_id for order in votes]
+
     def announce_via_twitter(self):
         complete_url = self.get_url(absolute=True)
         try:
@@ -215,6 +229,14 @@ class Poll(sqlobject.SQLObject):
             return
         publish_twitter_alert(title, twitter_key, twitter_secret, twitter_access_key, twitter_access_secret)
 
+    def get_num_of_votes(self):
+        submitters = []
+        for submission in ContentSubmission.selectBy(poll_id=self.id):
+            for vote in VoteOrder.selectBy(content_submission_id=submission):
+                if not vote.submitter in submitters:
+                    submitters.append(vote.submitter)
+        return len(submitters)
+    
     def get_num_of_submitters(self):
         all_submitters = [submission.submitter for submission in ContentSubmission.selectBy(poll_id=self.id)]
         unique_submitters = []
@@ -245,8 +267,7 @@ class Poll(sqlobject.SQLObject):
         return get_url_string("%s%s/submit" % (BASE_DICT["base_url"], self.hash_key), absolute)
 
     def get_vote_url(self, absolute=False):
-        #TODO vote: Diese Funktion ist noch falsch, aber erstmal als Platzhalter noetig
+        return get_url_string("%s%s/vote" % (BASE_DICT["base_url"], self.hash_key), absolute)
-        return ""
 
     def get_admin_url(self, absolute=False, suffix=""):
         return get_url_string("%s%s%s" % (BASE_DICT["base_url"], self.admin_hash_key, suffix), absolute)
@@ -266,6 +287,9 @@ class Poll(sqlobject.SQLObject):
     def is_vote_enabled(self):
         return self.get_settings()["vote_enabled"]
 
+    def is_vote_finished(self, submitter):
+        return len(self.get_ordered_submissions(submitter)) > 0
+
     def get_submissions_visibility(self):
         settings = self.get_settings()
         return bool(settings["show_all_submissions"] or (settings["expose_date"] and \
@@ -553,15 +577,24 @@ def publish_twitter_alert(text, key, secret,access_key,access_secret):
     except urllib2.URLError, e:
         print e.reason
 
-def check_spam_submitter_name(name):
+def is_spam_submitter_name(name, errors_dict):
     lower_text = re.sub("[^a-z]", "", name)
     upper_text = re.sub("[^A-Z]", "", name)
-    return (len(lower_text) + len(upper_text) == len(name)) and \
+    if (len(lower_text) + len(upper_text) == len(name)) and \
             (len(lower_text) > 3) and (len(upper_text) > 3) and \
-            (len(name) >= 8) and (not name.startswith(upper_text))
+            (len(name) >= 8) and (not name.startswith(upper_text)):
+        errors_dict["submitter"] = "Spam-Verdacht: bitte den Namen korrigieren"
+        return False
+    else:
+        return True
 
-def check_spam_content(text):
+def is_spam_content(text, errors_dict):
-    return bool(re.search(r"(<a\s|\shref=|</a>)", text.lower()))
+    if re.search(r"(<a\s|\shref=|</a>)", text.lower()):
+        errors_dict["content"] = \
+                "Spam-Verdacht: Inhalt darf keine HTML-Tags enthalten"
+        return True
+    else:
+        return False
 
 @bobo.query('/profile/logout')
 def user_logout(bobo_request):
@@ -738,20 +771,61 @@ def new_poll(bobo_request, submit=None, cancel=None, author=None, title=None,
                 new_poll.change_setting(key, value)
             return bobo.redirect(new_poll.get_admin_url())
 
+@bobo.query('/:hash_key/vote')
+def vote_submission_order(bobo_request, hash_key=None, submitter=None,
+        vote_order=None):
+    value_dict = get_default_values(bobo_request)
+    value_dict["errors"] = {}
+    data = {}
+    if submitter and is_spam_submitter_name(submitter, value_dict["errors"]):
+        data["submitter"] = submitter.strip()
+    if vote_order:
+        data["vote_order"] = vote_order
+    else:
+        data["vote_order"] = ""
+    poll_id = get_poll_id(hash_key)
+    if not poll_id is None:
+        poll = Poll.get(poll_id)
+        value_dict["poll"] = poll
+        try:
+            data = forms.VoteSubmissionOrderForm.to_python(data)
+        except formencode.Invalid, errors_packed:
+            # merge errors with previous ones - but never overwrite existing ones
+            errors = errors_packed.unpack_errors()
+            errors.update(value_dict["errors"])
+            value_dict["errors"] = errors
+        if value_dict["errors"] or poll.is_closed() or \
+                not poll.is_vote_enabled():
+            # ignore silently
+            pass
+        elif poll.is_vote_finished(submitter):
+            # there is already a vote stored for that submitter name
+            value_dict["errors"]["submit"] = \
+                    "Fehler: deine Wahl wurde bereits gespeichert."
+        else:
+            # store this order of items
+            digest_dict = {}
+            for submission in ContentSubmission.selectBy(poll_id=poll.id):
+                digest_dict[submission.get_obfuscated_digest()] = submission
+            vote_order = vote_order.split()
+            for index, digest in enumerate(vote_order):
+                if digest in digest_dict:
+                    VoteOrder(submitter=submitter, priority=index,
+                            content_submission_id=digest_dict[digest])
+        #value_dict["errors"]["submit"] = str(poll.get_ordered_submissions(submitter))
+        value_dict["submitter"] = submitter
+        return render("poll_details.html", input_data=data, **value_dict)
+    else:
+        return bobo.redirect(BASE_DICT["base_url"])
+
 @bobo.query('/:hash_key/submit')
 def submit_content(bobo_request, hash_key=None, submitter=None, content=None):
     value_dict = get_default_values(bobo_request)
     value_dict["errors"] = {}
     data = {}
-    if content and check_spam_content(content):
+    if content and is_spam_content(content, value_dict["errors"]):
-        value_dict["errors"]["content"] = \
-                "Spam-Verdacht: Inhalt darf keine HTML-Tags enthalten"
-    else:
         data["content"] = content
-    if submitter and check_spam_submitter_name(submitter):
+    if submitter and is_spam_submitter_name(submitter, value_dict["errors"]):
-        value_dict["errors"]["submitter"] = \
-                "Spam-Verdacht: bitte den Namen korrigieren"
-    else:
         data["submitter"] = submitter
     poll_id = get_poll_id(hash_key)
     if not poll_id is None:
@@ -774,6 +848,7 @@ def submit_content(bobo_request, hash_key=None, submitter=None, content=None):
             # remove "content" for the next input
             del data["content"]
             return render("poll_details.html", input_data=data, **value_dict)
+    else:
         return bobo.redirect(BASE_DICT["base_url"])
 
 @bobo.query('/:admin_hash_key/delete')
@@ -1149,7 +1224,7 @@ def static_files(p1=None, p2=None, p3=None):
     return get_static_file(pathname)
 
 
-for table in (Poll, ContentSubmission, PollSetting, PollRelation, Profile, ProfilePolls):
+for table in (Poll, ContentSubmission, VoteOrder, PollSetting, PollRelation, Profile, ProfilePolls):
     #table.dropTable()
     if not table.tableExists():
         table.createTable()