migrate Seen to django models and whatnot

this also adds south and django_extensions stuff, because that is the
natural thing to do. this is a pretty good start, i think

ircbot/modules/Seen.py

@@ -1,6 +1,6 @@
 """
 Seen - track when a person speaks, and allow data to be queried
-Copyright (C) 2010  Brian S. Stephan
+Copyright (C) 2014  Brian S. Stephan
 
 This program is free software: you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
@@ -14,92 +14,51 @@ GNU General Public License for more details.
 
 You should have received a copy of the GNU General Public License
 along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
 """
 
 import re
 
-from dateutil.tz import *
-import MySQLdb as mdb
+from django.utils import timezone
+
+from seen.models import SeenNick
 
 from Module import Module
 
+
 class Seen(Module):
 
     """Track when people say things in public channels, and report on it."""
 
-    def db_init(self):
-        """Create the table to store seen data."""
-
-        version = self.db_module_registered(self.__class__.__name__)
-        if version == None:
-            db = self.get_db()
-            try:
-                version = 1
-                cur = db.cursor(mdb.cursors.DictCursor)
-                cur.execute('''
-                    CREATE TABLE seen_nicks (
-                        nick VARCHAR(64) NOT NULL,
-                        location VARCHAR(64) NOT NULL,
-                        host VARCHAR(256) NOT NULL,
-                        time TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
-                        what LONGTEXT NOT NULL
-                    ) ENGINE=InnoDB CHARACTER SET utf8 COLLATE utf8_bin
-                    ''')
-                cur.execute('''
-                    CREATE UNIQUE INDEX seen_nicks_nick_and_location_index
-                        ON seen_nicks (nick, location)
-                    ''')
-                db.commit()
-                self.db_register_module_version(self.__class__.__name__, version)
-            except mdb.Error as e:
-                db.rollback()
-                self.log.error("database error trying to create tables")
-                self.log.exception(e)
-                raise
-            finally: cur.close()
-
     def do(self, connection, event, nick, userhost, what, admin_unlocked):
         """Track pubmsg/privmsg events, and if asked, report on someone."""
 
         where = event.target()
 
-        db = self.get_db()
-        # whatever it is, store it
-        try:
-            # if there's no where, this is probably a sub-command. don't learn it
-            if where:
-                cur = db.cursor(mdb.cursors.DictCursor)
-                statement = 'REPLACE INTO seen_nicks (nick, location, host, what) VALUES (%s, %s, %s, %s)'
-                cur.execute(statement, (nick, where, userhost, what))
-                db.commit()
-        except mdb.Error as e:
-            db.rollback()
-            self.log.error("database error storing seen data")
-            self.log.exception(e)
-            raise
-        finally: cur.close()
+        # store the event. only learn events with real wheres
+        if where:
+            try:
+                seen_nick = SeenNick.objects.get(nick=nick, channel=where)
+            except SeenNick.DoesNotExist:
+                seen_nick = SeenNick()
+                seen_nick.nick = nick
+                seen_nick.channel = where
+
+            seen_nick.host = userhost
+            seen_nick.what = what
+            seen_nick.save()
 
         match = re.search('^!seen\s+(\S+)$', what)
         if match:
             nick = match.group(1)
-            db = self.get_db()
             try:
-                cur = db.cursor(mdb.cursors.DictCursor)
-                query = 'SELECT * FROM seen_nicks WHERE nick = %s AND location = %s'
-                cur.execute(query, (nick,where))
-                result = cur.fetchone()
-                if result:
-                    seentime = result['time'].replace(tzinfo=tzlocal())
-                    replystr = 'last saw {0:s} in {3:s} at {1:s} saying \'{2:s}\'.'.format(result['nick'], seentime.astimezone(tzlocal()).strftime('%Y/%m/%d %H:%M:%S %Z'), result['what'], result['location'])
-                    return self.irc.reply(event, replystr)
-                else:
-                    return self.irc.reply(event, 'i have not seen {0:s} in {1:s}.'.format(nick, where))
-            except mdb.Error as e:
-                db.rollback()
-                self.log.error("database error retrieving seen data")
-                self.log.exception(e)
-                raise
-            finally: cur.close()
+                seen_nick = SeenNick.objects.get(nick=nick, channel=where)
+                local_time = timezone.localtime(seen_nick.seen_time)
+                return self.irc.reply(event,
+                                      "last saw {0:s} in {1:s} at {2:s} saying '{3:s}'."
+                                      "".format(seen_nick.nick, seen_nick.channel,
+                                                local_time, seen_nick.what))
+            except SeenNick.DoesNotExist:
+                return self.irc.reply(event, "i have not seen {0:s} in {1:s}.".format(nick, where))
 
 # vi:tabstop=4:expandtab:autoindent
-# kate: indent-mode python;indent-width 4;replace-tabs on;