+import datetime
import logging
+import math
-from pylons import config, request, response, session, tmpl_context as c, url
+from pylons import cache, config, request, response, session, tmpl_context as c, url
from pylons.controllers.util import abort, redirect
from routes import request_config
+from sqlalchemy.orm import joinedload
from sqlalchemy.orm.exc import NoResultFound
+from sqlalchemy.sql import func
import wtforms
from wtforms import fields
log = logging.getLogger(__name__)
+def forum_activity_score(forum):
+ """Returns a number representing how active a forum is, based on the past
+ week.
+
+ The calculation is arbitrary, but 0 is supposed to mean "dead" and 1 is
+ supposed to mean "healthy".
+ """
+ cutoff = datetime.datetime.now() - datetime.timedelta(days=7)
+
+ post_count = meta.Session.query(forum_model.Post) \
+ .join(forum_model.Post.thread) \
+ .filter(forum_model.Thread.forum == forum) \
+ .filter(forum_model.Post.posted_time >= cutoff) \
+ .count()
+
+ # Avoid domain errors!
+ if not post_count:
+ return 0.0
+
+ # The log is to scale 0 posts to 0.0, and 168 posts to 1.0.
+ # The square is really just to take the edge off the log curve; it
+ # accelerates to 1 very quickly, then slows considerably after that.
+ # Squaring helps both of these problems.
+ score = (math.log(post_count) / math.log(168)) ** 2
+
+ # TODO more threads and more new threads should boost the score slightly
+
+ return score
+
+def get_forum_activity():
+ """Returns a hash mapping forum ids to their level of 'activity'."""
+ forums_q = meta.Session.query(forum_model.Forum)
+
+ activity = {}
+ for forum in forums_q:
+ activity[forum.id] = forum_activity_score(forum)
+
+ return activity
+
+def get_forum_volume():
+ """Returns a hash mapping forum ids to the percentage of all posts that
+ reside in that forum.
+ """
+ # Do a complicated-ass subquery to get a list of forums and postcounts
+ volume_q = meta.Session.query(
+ forum_model.Forum.id.label('forum_id'),
+ func.count(forum_model.Post.id).label('post_count'),
+ ) \
+ .outerjoin(forum_model.Thread) \
+ .outerjoin(forum_model.Post) \
+ .group_by(forum_model.Forum.id)
+
+ # Stick this into a hash, and count the number of total posts
+ total_posts = 0
+ volume = {}
+ for forum_id, post_count in volume_q:
+ post_count = float(post_count or 0)
+ volume[forum_id] = post_count
+ total_posts += post_count
+
+ # Divide, to get a percentage
+ if total_posts:
+ for forum_id, post_count in volume.iteritems():
+ volume[forum_id] /= total_posts
+
+ return volume
+
+
class WritePostForm(wtforms.Form):
content = fields.TextAreaField('Content')
def forums(self):
c.forums = meta.Session.query(forum_model.Forum) \
- .order_by(forum_model.Forum.id.asc())
+ .order_by(forum_model.Forum.id.asc()) \
+ .all()
+
+ # Get some forum stats. Cache them because they're a bit expensive to
+ # compute. Expire after an hour.
+ # XXX when there are admin controls, they'll need to nuke this cache
+ # when messing with the forum list
+ forum_cache = cache.get_cache('spline-forum', expiretime=3600)
+ c.forum_activity = forum_cache.get_value(
+ key='forum_activity', createfunc=get_forum_activity)
+ c.forum_volume = forum_cache.get_value(
+ key='forum_volume', createfunc=get_forum_volume)
+
+ c.max_volume = max(c.forum_volume.itervalues()) or 1
+
+ # Need to know the last post for each forum, in realtime
+ c.last_post = {}
+ last_post_subq = meta.Session.query(
+ forum_model.Forum.id.label('forum_id'),
+ func.max(forum_model.Post.posted_time).label('posted_time'),
+ ) \
+ .outerjoin(forum_model.Thread) \
+ .outerjoin(forum_model.Post) \
+ .group_by(forum_model.Forum.id) \
+ .subquery()
+ last_post_q = meta.Session.query(
+ forum_model.Post,
+ last_post_subq.c.forum_id,
+ ) \
+ .join((
+ last_post_subq,
+ forum_model.Post.posted_time == last_post_subq.c.posted_time,
+ )) \
+ .options(
+ joinedload('thread'),
+ joinedload('author'),
+ )
+ for post, forum_id in last_post_q:
+ c.last_post[forum_id] = post
+
return render('/forum/forums.mako')
def threads(self, forum_id):
c.write_thread_form = WriteThreadForm()
- c.threads = c.forum.threads
+ c.threads = c.forum.threads.options(
+ joinedload('last_post'),
+ joinedload('last_post.author'),
+ )
return render('/forum/threads.mako')
<%inherit file="/base.mako" />
<%namespace name="forumlib" file="/forum/lib.mako" />
+<%namespace name="userlib" file="/users/lib.mako" />
<%def name="title()">Forums</%def>
<img src="${h.static_uri('spline', 'icons/folders-stack.png')}" alt="">
Forum
</th>
+ <th class="last-post">Last post</th>
<th class="stats">Volume</th>
<th class="stats">Activity</th>
</tr>
</div>
% endif
</td>
- <td class="stats">xxx</td>
- <td class="stats">xxx</th>
+
+ <td class="last-post">
+ <% last_post = c.last_post.get(forum.id, None) %> \
+ % if last_post:
+ ## XXX should do direct post link
+ <a href="${url(controller='forum', action='posts', forum_id=forum.id, thread_id=last_post.thread_id)}">${last_post.posted_time}</a>
+ <br> in <a href="${url(controller='forum', action='posts', forum_id=forum.id, thread_id=last_post.thread_id)}">${last_post.thread.subject}</a>
+ <br> by <a href="${url(controller='users', action='profile', id=last_post.author.id, name=last_post.author.name)}">${userlib.color_bar(last_post.author)} ${last_post.author.name}</a>
+ % else:
+ —
+ % endif
+ </td>
+
+ <% relative_volume = c.forum_volume[forum.id] / c.max_volume %>\
+ <td class="stats
+ % if relative_volume < 0.1:
+ verylow
+ % elif relative_volume < 0.33:
+ low
+ % elif relative_volume < 0.5:
+ okay
+ % elif relative_volume < 0.67:
+ high
+ % elif relative_volume < 0.9:
+ veryhigh
+ % else:
+ whoanelly
+ % endif
+ ">
+ ${"{0:3.1f}".format(c.forum_volume[forum.id] * 100)}%
+ </th>
+ <% activity = c.forum_activity[forum.id] %>\
+ <td class="stats
+ % if activity < 0.25:
+ verylow
+ % elif activity < 0.5:
+ low
+ % elif activity < 1.0:
+ okay
+ % elif activity < 2.0:
+ high
+ % elif activity < 4.0:
+ veryhigh
+ % else:
+ whoanelly
+ % endif
+ ">
+ ${"{0:0.3f}".format(activity)}
+ </td>
</tr>
% endfor
</tbody>
<%inherit file="/base.mako" />
<%namespace name="forumlib" file="/forum/lib.mako" />
+<%namespace name="userlib" file="/users/lib.mako" />
<%def name="title()">${c.forum.name} - Forums</%def>
<img src="${h.static_uri('spline', 'icons/folder-open-document-text.png')}" alt="">
Thread
</th>
+ <th class="stats">Last post</th>
<th class="stats">Posts</th>
</tr>
</thead>
% for thread in c.threads:
<tr>
<td class="name"><a href="${url(controller='forum', action='posts', forum_id=c.forum.id, thread_id=thread.id)}">${thread.subject}</a></td>
+ <td class="last-post">
+ % if thread.last_post:
+ ## XXX should do direct post link
+ <a href="${url(controller='forum', action='posts', forum_id=c.forum.id, thread_id=thread.last_post.thread_id)}">${thread.last_post.posted_time}</a>
+ <br> by <a href="${url(controller='users', action='profile', id=thread.last_post.author.id, name=thread.last_post.author.name)}">${userlib.color_bar(thread.last_post.author)} ${thread.last_post.author.name}</a>
+ % else:
+ —
+ % endif
+ </td>
<td class="stats">${thread.post_count}</td>
</tr>
% endfor
projects / zzz-spline-forum.git / commitdiff
