# HG changeset patch
# User Paul Boddie <paul@boddie.org.uk>
# Date 1196554680 -3600
# Node ID b5956f48f047b0faa1f980ddfcdbe0130e872f54
# Parent  6206261843c802e172d3954cb7d4fa0971d1fa0a
Added banner advertisement image rotation, linking to a sponsors page.
Added access control lists.

diff -r 6206261843c8 -r b5956f48f047 ep2008.py
--- a/ep2008.py	Sat Dec 01 21:50:31 2007 +0100
+++ b/ep2008.py	Sun Dec 02 01:18:00 2007 +0100
@@ -36,6 +36,9 @@
     data_underlay_dir = '/home/paulb/Activities/EuroPython/2008/ep2008/wiki/underlay'
 
     acl_enabled = 1
+    acl_rights_default = 'Known:read,write,delete,revert All:read,write'
+    acl_rights_before = 'AdminGroup:read,write,delete,revert,admin'
+
     theme_default = 'ep2008'
 
     logo_string = u'<img src="/wiki/ep2008/img/europython.png" alt="EuroPython" />'
@@ -55,6 +58,12 @@
     ]
 
     banner_string = u'<img src="/wiki/ep2008/img/sponsor_us.png" alt="Banner advertisement" id="banner" />'
+    banner_alt_text = u'Sponsor of EuroPython'
+    banner_prefix = u'sponsor'
+    banner_per_page = 0
+    banner_attachment_page = u'FrontPage'
+    banner_link_page = u'Sponsors'
+
     contact_string = u'<div id="contact"><a href="Contact">Contact Information</a></div>'
     contribute_string = u'Contribute to this site!'
     special_username = 0
diff -r 6206261843c8 -r b5956f48f047 themes/ep2008/ep2008.py
--- a/themes/ep2008/ep2008.py	Sat Dec 01 21:50:31 2007 +0100
+++ b/themes/ep2008/ep2008.py	Sun Dec 02 01:18:00 2007 +0100
@@ -7,9 +7,9 @@
 """
 
 from MoinMoin.theme import ThemeBase
-#from MoinMoin.theme import modern
+from MoinMoin.action import AttachFile
+import random
 
-#class Theme(modern.Theme):
 class Theme(ThemeBase):
 
     name = "ep2008"
@@ -30,7 +30,7 @@
             self.logo(),
 
             # Banner
-            self.cfg.banner_string,
+            self.banner(d),
 
             self.searchform(d),
             self.navibar(d),
@@ -159,6 +159,44 @@
                 d['page'].link_to(request, text=self.cfg.contribute_string,
                                   querystr={'action': 'login'}, id="login")
 
+    def banner(self, d):
+        request = self.request
+        formatter = request.formatter
+
+        # Either get banners per page or acquire them from a central source.
+
+        if self.cfg.banner_per_page:
+            pagename = d["page"].page_name
+        else:
+            pagename = self.cfg.banner_attachment_page
+
+        # Only get attachments with a certain prefix.
+
+        attachments = []
+        for filename in AttachFile._get_files(request, pagename):
+            if filename.startswith(self.cfg.banner_prefix):
+                attachments.append(filename)
+
+        # Display the default banner if no attachments are found.
+
+        if not attachments:
+            return self.cfg.banner_string
+
+        # Choose an attachment at random and return the HTML to show it.
+
+        attachment = random.choice(attachments)
+
+        kw = {}
+        kw['src'] = AttachFile.getAttachUrl(pagename, attachment, request)
+        kw['alt'] = self.cfg.banner_alt_text
+        kw['id'] = u'banner'
+
+        target = self.cfg.banner_link_page
+
+        return "%s%s%s" % (formatter.pagelink(1, target),
+                           formatter.image(**kw),
+                           formatter.pagelink(0))
+
 def execute(request):
     """
     Generate and return a theme object