Remove tweets button for Army of Awesome. Bug 624464.

apps/customercare/admin.py

@@ -6,7 +6,7 @@ from .models import Tweet, CannedCategory, CannedResponse, CategoryMembership
 class TweetAdmin(admin.ModelAdmin):
     date_hierarchy = 'created'
     list_display = ('tweet_id', '__unicode__', 'created', 'locale')
-    list_filter = ('locale',)
+    list_filter = ('locale', 'hidden')
     search_fields = ('raw_json',)
 admin.site.register(Tweet, TweetAdmin)
 

apps/customercare/models.py

@@ -15,6 +15,7 @@ class Tweet(ModelBase):
     created = models.DateTimeField(default=datetime.now, db_index=True)
     reply_to = models.BigIntegerField(blank=True, null=True, default=None,
                                       db_index=True)
+    hidden = models.BooleanField(default=False, db_index=True)
 
     class Meta:
         get_latest_by = 'created'

apps/customercare/templates/customercare/landing.html

@@ -45,6 +45,7 @@
     <br style="clear:both; height: 1px" />
 
     <div id="tweets-wrap">
+      {{ csrf() }}{# CSRF token for AJAX actions. #}
       {% if not tweets %}
         <div class="warning-box">
           {% trans language=settings.LOCALES[request.locale].native %}

apps/customercare/templates/customercare/tweets.html

@@ -21,6 +21,12 @@
       {% elif settings.CC_SHOW_REPLIES %}
         <span class="reply_count">{{ _('Reply now') }}</span>
       {% endif %}
+
+      {% if settings.CC_ALLOW_REMOVE and not (tweet.reply_to or tweet.replies) %}
+        <a class="remove_tweet" href="{{ url('customercare.hide_tweet') }}">{{
+          _('Remove') }}</a>
+      {% endif %}
+
       <p class="text">{{ tweet.text|safe }}</p>
     </div>
     <div id="replies_{{ tweet.id }}" class="replies" data-tweet-id="{{ tweet.id }}">

apps/customercare/tests/test_views.py

@@ -1,7 +1,12 @@
+from django.conf import settings
+
+from mock import patch_object
 from nose.tools import eq_
 
+from customercare.models import Tweet
 from customercare.views import _get_tweets
 from sumo.tests import TestCase
+from sumo.urlresolvers import reverse
 
 
 class TweetListTestCase(TestCase):
@@ -28,3 +33,53 @@ class TweetListTestCase(TestCase):
         # max_id.
         for tweet in tweets_2:
             assert tweet['id'] < max_id
+
+    def test_hide_tweets(self):
+        """Try hiding tweets."""
+        hide_tweet = lambda id: self.client.post(
+            reverse('customercare.hide_tweet', locale='en-US'),
+            {'id': id})
+
+        tw = Tweet.objects.no_cache().filter(reply_to=None, hidden=False)[0]
+        r = hide_tweet(tw.tweet_id)
+        eq_(r.status_code, 200)
+
+        # Re-fetch from database. Should be hidden.
+        tw = Tweet.objects.no_cache().get(tweet_id=tw.tweet_id)
+        eq_(tw.hidden, True)
+
+        # Hiding it again should work.
+        r = hide_tweet(tw.tweet_id)
+        eq_(r.status_code, 200)
+
+    def test_hide_tweets_with_replies(self):
+        """Hiding tweets with replies is not allowed."""
+        tw = Tweet.objects.filter(reply_to=None)[0]
+        tw.reply_to = 123
+        tw.save()
+
+        r = self.client.post(
+            reverse('customercare.hide_tweet', locale='en-US'),
+            {'id': tw.tweet_id})
+        eq_(r.status_code, 400)
+
+    def test_hide_tweets_invalid_id(self):
+        """Invalid tweet IDs shouldn't break anything."""
+        hide_tweet = lambda id: self.client.post(
+            reverse('customercare.hide_tweet', locale='en-US'),
+            {'id': id})
+
+        r = hide_tweet(123)
+        eq_(r.status_code, 404)
+
+        r = hide_tweet('cheesecake')
+        eq_(r.status_code, 400)
+
+    @patch_object(settings._wrapped, 'CC_ALLOW_REMOVE', False)
+    def test_hide_tweets_disabled(self):
+        """Do not allow hiding tweets if feature is disabled."""
+        tw = Tweet.objects.filter(reply_to=None)[0]
+        r = self.client.post(
+            reverse('customercare.hide_tweet', locale='en-US'),
+            {'id': tw.tweet_id})
+        eq_(r.status_code, 418)  # Don't tell a teapot to brew coffee.

apps/customercare/urls.py

@@ -1,7 +1,8 @@
 from django.conf.urls.defaults import patterns, url
 
 urlpatterns = patterns('customercare.views',
-    url(r'/more_tweets', 'more_tweets', name="customercare.more_tweets"),
+    url(r'^/more_tweets$', 'more_tweets', name="customercare.more_tweets"),
-    url(r'/twitter_post', 'twitter_post', name="customercare.twitter_post"),
+    url(r'^/twitter_post$', 'twitter_post', name="customercare.twitter_post"),
-    url(r'', 'landing', name='customercare.landing'),
+    url(r'^/hide_tweet$', 'hide_tweet', name="customercare.hide_tweet"),
+    url(r'^$', 'landing', name='customercare.landing'),
 )

apps/customercare/views.py

@@ -6,7 +6,9 @@ import logging
 
 from django.conf import settings
 from django.core.cache import cache
-from django.http import HttpResponseBadRequest
+from django.http import (HttpResponse, HttpResponseBadRequest,
+                         HttpResponseNotFound, HttpResponseServerError)
+from django.shortcuts import get_object_or_404
 from django.views.decorators.http import require_POST, require_GET
 
 from babel.numbers import format_number
@@ -15,7 +17,7 @@ import jingo
 from tower import ugettext as _
 import tweepy
 
-from .models import CannedCategory, Tweet
+from customercare.models import CannedCategory, Tweet
 import twitter
 
 
@@ -58,7 +60,7 @@ def _get_tweets(locale=settings.LANGUAGE_CODE,
     max_id will only return tweets with the status ids less than the given id.
     """
     locale = settings.LOCALES[locale].iso639_1
-    q = Tweet.objects.filter(locale=locale, reply_to=reply_to)
+    q = Tweet.objects.filter(locale=locale, reply_to=reply_to, hidden=False)
     if max_id:
         q = q.filter(tweet_id__lt=max_id)
     if limit:
@@ -188,3 +190,39 @@ def twitter_post(request):
     # We could optimize by not encoding and then decoding JSON.
     return jingo.render(request, 'customercare/tweets.html',
         {'tweets': [_tweet_for_template(tweet)]})
+
+
+@require_POST
+def hide_tweet(request):
+    """
+    Hide the tweet with a given ID. Only hides tweets that are not replies
+    and do not have replies.
+
+    Returns proper HTTP status codes.
+    """
+    # If feature disabled, bail.
+    if not settings.CC_ALLOW_REMOVE:
+        return HttpResponse(status=418)  # I'm a teapot.
+
+    try:
+        id = int(request.POST.get('id'))
+    except (ValueError, TypeError):
+        return HttpResponseBadRequest(_('Invalid ID.'))
+
+    try:
+        tweet = Tweet.objects.get(tweet_id=id)
+    except Tweet.DoesNotExist:
+        return HttpResponseNotFound(_('Invalid ID.'))
+
+    if tweet.reply_to or Tweet.objects.filter(reply_to=id).count():
+        return HttpResponseBadRequest(_('Tweets that are replies or have '
+                                        'replies must not be hidden.'))
+
+    try:
+        tweet.hidden = True
+        tweet.save(force_update=True)
+    except Exception, e:
+        return HttpResponseServerError(
+            _('An error occured: {message}').format(message=e))
+
+    return HttpResponse('ok')

media/css/customercare.css

@@ -155,6 +155,10 @@ div.warning-box {
     border-top: 1px solid #fef1ad;
 }
 
+#tweets li {
+    position: relative;
+}
+
 #tweets li img {
     border: solid 1px #cacccb;
     float: left;
@@ -193,7 +197,23 @@ div.warning-box {
     width: 550px;
 }
 
-#tweets li .reply_count {
+#tweets .remove_tweet {
+    display: none;
+}
+html.js #tweets li:hover .remove_tweet,
+#tweets li .remove_tweet.clicked {
+    display: inline;
+    position: absolute;
+    right: 10px;
+    bottom: 10px;
+}
+#tweets li .remove_tweet.clicked {
+    padding-left: 20px;
+    background: url('../img/customercare/spinner.gif') left top no-repeat;
+}
+
+#tweets li .reply_count,
+#tweets li .remove_tweet {
     clear: right;
     float: right;
     font-family: Verdana, sans-serif;
@@ -206,14 +226,20 @@ div.warning-box {
     color: #0ba643;
 }
 #tweets li a.reply_count:before {
-    content: '\25B6\A0';
+    content: '\25B6\A0';  /* rightarrow, space */
 }
 #tweets li a.reply_count.opened:before {
-    content: '\25BC\A0';
+    content: '\25BC\A0';  /* downarrow, space */
 }
-#tweets li a.reply_count:hover {
+#tweets li .reply_count:hover,
+#tweets li .remove_tweet:hover {
     text-decoration: underline;
 }
+#tweets li .remove_tweet:before {
+    color: #e45d49;
+    content: '\2716\A0';  /* big X, space */
+    font-size: 110%;
+}
 
 .tweets-buttons {
     float: right;

media/js/customercare.js

@@ -1,6 +1,7 @@
 (function($){
     // Tweet IDs are too high. Using .data('tweet-id') returns incorrect
-    // results. See jQuery bug 7579 - http://bugs.jquery.com/ticket/7579
+    // results. Use .attr('data-tweet-id') instead.
+    // See jQuery bug 7579 - http://bugs.jquery.com/ticket/7579
 
     function Memory(name) {
         this._id = null;
@@ -373,6 +374,37 @@
             e.preventDefault();
         });
 
+        /* Remove tweet functionality */
+        $('#tweets a.remove_tweet').live('click', function(e) {
+            if ($(this).hasClass('clicked')) return false;
+            $(this).addClass('clicked');
+
+            var tweet = $(this).closest('li'),
+                tweet_id = tweet.attr('data-tweet-id');
+            $.ajax({
+                url: $(this).attr('href'),
+                type: 'POST',
+                data: {
+                    csrfmiddlewaretoken: $('#tweets-wrap input[name=csrfmiddlewaretoken]').val(),
+                    id: tweet_id
+                },
+                dataType: 'text',
+                success: function() {
+                    $(this).removeClass('clicked');
+                    tweet.slideUp('fast', function() {
+                        $(this).remove();
+                    });
+                },
+                error: function(err) {
+                    $(this).removeClass('clicked');
+                    alert('Error removing tweet: ' + err.responseText);
+                }
+            });
+
+            $(this).blur();
+            e.preventDefault();
+        });
+
         /* Search box */
         $('#side-search input[name="q"]').autoPlaceholderText();
 

migrations/85-customercare-hidden.sql

@@ -0,0 +1,3 @@
+-- Allow tweets to be hidden on Army of Awesome page.
+ALTER TABLE `customercare_tweet` ADD `hidden` TINYINT(1) NOT NULL DEFAULT '0';
+ALTER TABLE `customercare_tweet` ADD INDEX ( `hidden` ) ;

settings.py

@@ -568,6 +568,7 @@ VIDEO_MAX_FILESIZE = 16777216  # 16 megabytes, in bytes
 CC_MAX_TWEETS = 500   # Max. no. of tweets in DB
 CC_TWEETS_PERPAGE = 100   # How many tweets to collect in one go. Max: 100.
 CC_SHOW_REPLIES = True  # Show replies to tweets?
+CC_ALLOW_REMOVE = True  # Allow users to hide tweets?
 
 CC_TWEET_ACTIVITY_URL = 'https://metrics.mozilla.com/stats/twitter/armyOfAwesomeKillRate.json'  # Tweet activity stats
 CC_TOP_CONTRIB_URL = 'https://metrics.mozilla.com/stats/twitter/armyOfAwesomeTopSoldiers.json'  # Top contributor stats