From cf27a5aa37c740a83d8b16f62835266744efdf32 Mon Sep 17 00:00:00 2001
From: Jeremy Goecks <jeremy.goecks@emory.edu>
Date: Thu, 10 Jan 2013 15:49:55 -0500
Subject: [PATCH] Preserve dbkey when navigating histories and datasets in
 Trackster.

---
 templates/tracks/history_select_grid.mako | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/templates/tracks/history_select_grid.mako b/templates/tracks/history_select_grid.mako
index 71a51b78c50..8a9deb3d798 100644
--- a/templates/tracks/history_select_grid.mako
+++ b/templates/tracks/history_select_grid.mako
@@ -70,7 +70,14 @@ ${grid_javascripts()}
             <% data_libraries_active = " activetab" %>
         %endif
     %endif
-    <a class="addtracktab${histories_active}" href="${h.url_for( action='list_histories' )}">Histories</a>
+    ## Add filter parameters manually because they include a hyphen and hence cannot be 
+    ## added as key words.
+    <% 
+        dbkey = '?'
+        if cur_filter_dict:
+            dbkey = cur_filter_dict.get( 'dbkey', '?' ) 
+    %>
+    <a class="addtracktab${histories_active}" href="${h.url_for( action='list_histories')}?f-dbkey=${dbkey}">Histories</a>
     <a class="addtracktab${data_libraries_active}" href="${h.url_for( action='list_libraries' )}">Data Libraries</a>
     <div class="divider"></div>
 </%def>