From 725b1b2ac08af82bac9486cd65a47b40e168b214 Mon Sep 17 00:00:00 2001
From: Greg Taylor <snagglepants@gmail.com>
Date: Tue, 15 May 2007 14:18:56 +0000
Subject: [PATCH] Adding a check to prevent duplicate channel names.

---
 commands_comsys.py  |  6 ++++++
 functions_comsys.py | 14 +++++++++++++-
 2 files changed, 19 insertions(+), 1 deletion(-)

diff --git a/commands_comsys.py b/commands_comsys.py
index d22d6bfc6f..2dc0e113ec 100644
--- a/commands_comsys.py
+++ b/commands_comsys.py
@@ -139,6 +139,12 @@ def cmd_ccreate(cdat):
 
    if cname == '':
       session.msg("You must supply a name!")
+      return
+
+   name_matches = functions_comsys.cname_search(cname, exact=True)
+
+   if name_matches:
+      session.msg("A channel with that name already exists.")
    else:
       # Create and set the object up.
       cdat = {"name": cname, "owner": pobject}
diff --git a/functions_comsys.py b/functions_comsys.py
index 65ad2806e0..e8e4f62b7a 100644
--- a/functions_comsys.py
+++ b/functions_comsys.py
@@ -42,4 +42,16 @@ def create_channel(cdat):
    new_chan.header = "[%s]" % (ansi.parse_ansi(cdat["name"]),)
    new_chan.set_owner(cdat["owner"])
    new_chan.save()
-   return new_chan
\ No newline at end of file
+   return new_chan
+
+def cname_search(search_text, exact=False):
+   """
+   Searches for a particular channel name. Returns a QuerySet with the
+   results.
+   
+   exact: (bool) Do an exact (case-insensitive) name match if true.
+   """
+   if exact:
+      return CommChannel.objects.filter(name__iexact=search_text)
+   else:
+      return CommChannel.objects.filter(name__istartswith=search_text)
\ No newline at end of file