scm: darcs: model entries returns nil if revision is not stored in database.

Prevent showing invalid revision in repository tab.

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@5433 e93f8b46-1217-0410-a6f0-8f06a7374b81

diff --git a/app/models/repository/darcs.rb b/app/models/repository/darcs.rb
index 5a9e7a7dd9ac1ce006f53adef0060499266ae401..ee3045967fc0b83a78974362f11e80b1720e6b23 100644 (file)
--- a/app/models/repository/darcs.rb
+++ b/app/models/repository/darcs.rb
@@ -42,7 +42,11 @@ class Repository::Darcs < Repository
   end
 
   def entries(path=nil, identifier=nil)
-    patch = identifier.nil? ? nil : changesets.find_by_revision(identifier)
+    patch = nil
+    if ! identifier.nil?
+      patch = changesets.find_by_revision(identifier)
+      return nil if patch.nil?
+    end
     entries = scm.entries(path, patch.nil? ? nil : patch.scmid)
     if entries
       entries.each do |entry|