Implemented DmsfFile.copy_to_filename that creates a copy with a new filename.

app/models/dmsf_file.rb

@@ -274,6 +274,10 @@ class DmsfFile < ActiveRecord::Base
   end
 
   def copy_to(container, folder = nil)
+    copy_to_filename(container, folder, self.name)
+  end
+  
+  def copy_to_filename(container, folder=nil, filename)
     project = container.is_a?(Project) ? container : container.project
     # If the target project differs from the source project we must physically move the disk files
     if (self.project != project) && self.last_revision
@@ -285,7 +289,7 @@ class DmsfFile < ActiveRecord::Base
     file.dmsf_folder = folder
     file.container_type = self.container_type
     file.container_id = container.id
-    file.name = self.name
+    file.name = filename
     file.notification = Setting.plugin_redmine_dmsf['dmsf_default_notifications'].present?
     if file.save && self.last_revision
       new_revision = self.last_revision.clone

test/unit/dmsf_file_test.rb

@@ -37,6 +37,7 @@ class DmsfFileTest < RedmineDmsf::Test::UnitTest
     @file6 = DmsfFile.find_by_id 6
     @file7 = DmsfFile.find_by_id 7
     @file8 = DmsfFile.find_by_id 8
+    @folder1 = DmsfFolder.find_by_id 1
     @issue1 = Issue.find_by_id 1
     User.current = nil
   end
@@ -53,6 +54,7 @@ class DmsfFileTest < RedmineDmsf::Test::UnitTest
     assert_kind_of DmsfFile, @file6
     assert_kind_of DmsfFile, @file7
     assert_kind_of DmsfFile, @file8
+    assert_kind_of DmsfFolder, @folder1
     assert_kind_of Issue, @issue1
   end
 
@@ -142,6 +144,28 @@ class DmsfFileTest < RedmineDmsf::Test::UnitTest
     @file4.dmsf_folder.lock!
   end
   
+  def test_copy_to_filename
+    assert_no_difference '@file1.dmsf_file_revisions.count' do
+      new_file = @file1.copy_to_filename(@file1.project, nil, "new_file.txt")
+      assert_not_equal new_file.id, @file1.id
+      assert_nil new_file.dmsf_folder_id
+      assert_nil @file1.dmsf_folder_id
+      assert_not_equal new_file.name, @file1.name
+      assert_equal new_file.dmsf_file_revisions.count, 1
+    end
+  end
+  
+  def test_copy_to
+    assert_no_difference '@file1.dmsf_file_revisions.count' do
+      new_file = @file1.copy_to(@file1.project, @folder1)
+      assert_not_equal new_file.id, @file1.id
+      assert_not_equal @file1.dmsf_folder_id, @folder1.id
+      assert_equal new_file.dmsf_folder_id, @folder1.id
+      assert_equal new_file.name, @file1.name
+      assert_equal new_file.dmsf_file_revisions.count, 1
+    end
+  end
+  
   def test_save_and_destroy_with_cache
     RedmineDmsf::Webdav::Cache.init_testcache