* Fixed channel history to show in the correct order now.

* Two channels are now created by initial_setup.py for informative emits: MUDConnections and MUDInfo.
* MUDConnections now shows a connection/login/logout log.
* MUDInfo shows general informative messages about the server state. For now IMC emits here when things happen (connection, disconnection, etc.).
Eventually we'll want to restrict these to staff only, but it's not high priority atm.

src/comsys.py

@@ -7,6 +7,7 @@ from django.utils import simplejson
 from src.channels.models import CommChannel, CommChannelMessage
 from src import session_mgr
 from src import ansi
+from src import logger
 
 def plr_get_cdict(session):
     """
@@ -165,13 +166,25 @@ def msg_chan_hist(target_obj, channel_name):
     channel_name: (str) The channel's full name.
     """
     cobj = get_cobj_from_name(channel_name)
-    hist_list = CommChannelMessage.objects.filter(channel=cobj).order_by('date_sent')[0:20]
-    for entry in hist_list:
+    hist_list = CommChannelMessage.objects.filter(channel=cobj).order_by('date_sent')
+    
+    # Negative indexing is not currently supported with QuerySet objects.
+    # Figure out what the first CommChannelMessage is to return and grab the
+    # next 20.
+    first_msg = hist_list.count() - 20
+    # Prevent a negative index from being called on.
+    if first_msg < 0:
+        first_msg = 0
+    
+    # Slice and dice, display last 20 messages.
+    for entry in hist_list[first_msg:]:
         delta_days = datetime.datetime.now() - entry.date_sent
         days_elapsed = delta_days.days
         if days_elapsed > 0:
+            # Message happened more than a day ago, show the date.
             time_str = entry.date_sent.strftime("%m.%d / %H:%M")
         else:
+            # Recent message (within last 24 hours), show hour:minute.
             time_str = entry.date_sent.strftime("%H:%M")
         target_obj.emit_to("[%s] %s" % (time_str, entry.message))
     
@@ -207,22 +220,30 @@ def load_object_channels(pobject):
         for session in sessions:
             session.channels_subscribed = simplejson.loads(chan_list)
 
-def send_cmessage(channel_name, message):
+def send_cmessage(channel_name, message, noheader=True):
     """
     Sends a message to all players on the specified channel.
 
     channel_name: (string) The name of the channel.
-    message:        (string) Message to send.
+    message:      (string) Message to send.
+    noheader: (bool) If False, prefix the message with the channel's name.
     """
+    try:
+        channel_obj = get_cobj_from_name(channel_name)
+    except:
+        logger.log_errmsg("send_cmessage(): Can't find channel: %s" % (channel_name,))
+        return
+        
+    if noheader == False:
+        message = "%s %s" % (channel_obj.ansi_name, message)
+        
     for user in get_cwho_list(channel_name, return_muted=False):
         user.msg(message)
-    try:
-        chan_message = CommChannelMessage()
-        chan_message.channel = get_cobj_from_name(channel_name)
-        chan_message.message = message
-        chan_message.save()
-    except:
-        print "send_cmessage(): Can't find channel: %s" % (channel_name,)
+        
+    chan_message = CommChannelMessage()
+    chan_message.channel = channel_obj
+    chan_message.message = message
+    chan_message.save()
 
 def get_all_channels():
     """