diff -r 88fc7202f87d roundup/backends/back_anydbm.py
--- a/roundup/backends/back_anydbm.py	Fri Jun 10 18:24:47 2016 +1000
+++ b/roundup/backends/back_anydbm.py	Fri Jun 10 20:59:41 2016 -0400
@@ -1495,6 +1495,11 @@
         if not self.key:
             raise TypeError('No key property set for '
                 'class %s'%self.classname)
+
+        # special notation for looking up the current database user
+        if keyvalue == '.' and self.classname == 'user':
+            keyvalue = str(self.db.getuid())
+
         cldb = self.db.getclassdb(self.classname)
         try:
             for nodeid in self.getnodeids(cldb):
diff -r 88fc7202f87d roundup/backends/rdbms_common.py
--- a/roundup/backends/rdbms_common.py	Fri Jun 10 18:24:47 2016 +1000
+++ b/roundup/backends/rdbms_common.py	Fri Jun 10 20:59:41 2016 -0400
@@ -2092,6 +2092,10 @@
         if not self.key:
             raise TypeError('No key property set for class %s'%self.classname)
 
+        # special notation for looking up the current database user
+        if keyvalue == '.' and self.classname == 'user':
+            keyvalue = str(self.db.getuid())
+
         # use the arg to handle any odd database type conversion (hello,
         # sqlite)
         sql = "select id from _%s where _%s=%s and __retired__=%s"%(
@@ -2493,6 +2497,9 @@
                             for entry in v:
                                 if entry == '-1':
                                     entry = None
+                                elif entry == '.' and propclass.classname == 'user':
+                                    entry = self.db.getuid()
+
                                 d[entry] = entry
                             l = []
                             if None in d or not d:
@@ -2506,6 +2513,8 @@
                             if l:
                                 where.append('(' + ' or '.join(l) +')')
                         else:
+                            if v == '.' and propclass.classname == 'user':
+                                v = self.db.getuid()
                             if v in ('-1', None):
                                 v = None
                                 where.append('_%s._%s is NULL'%(pln, k))
diff -r 88fc7202f87d roundup/cgi/templating.py
--- a/roundup/cgi/templating.py	Fri Jun 10 18:24:47 2016 +1000
+++ b/roundup/cgi/templating.py	Fri Jun 10 20:59:41 2016 -0400
@@ -354,6 +354,9 @@
         # otherwise entry must be existing object id rather than key value
         if fail_ok or num_re.match(entry):
             l.append(entry)
+        # as a special case, '.' means the currently logged-in user
+        elif entry == '.' and prop.classname == 'user':
+            l.append(entry)
     return l
 
 def lookupKeys(linkcl, key, ids, num_re=num_re):
diff -r 88fc7202f87d share/roundup/templates/classic/html/issue.search.html
--- a/share/roundup/templates/classic/html/issue.search.html	Fri Jun 10 18:24:47 2016 +1000
+++ b/share/roundup/templates/classic/html/issue.search.html	Fri Jun 10 20:59:41 2016 -0400
@@ -86,8 +86,8 @@
     tal:condition="db/user/is_view_ok">
   <th i18n:translate="">Creator:</th>
   <td metal:use-macro="search_select">
-    <option metal:fill-slot="extra_options" i18n:translate=""
-            tal:attributes="value request/user/id">created by me</option>
+    <option metal:fill-slot="extra_options" value="."
+            i18n:translate="">created by me</option>
   </td>
   <td metal:use-macro="column_input"></td>
   <td metal:use-macro="sort_input"></td>
@@ -108,8 +108,8 @@
     tal:condition="db/user/is_view_ok">
   <th i18n:translate="">Actor:</th>
   <td metal:use-macro="search_select">
-    <option metal:fill-slot="extra_options" i18n:translate=""
-            tal:attributes="value request/user/id">done by me</option>
+    <option metal:fill-slot="extra_options" value="."
+            i18n:translate="">done by me</option>
   </td>
   <td metal:use-macro="column_input"></td>
   <td metal:use-macro="sort_input"></td>