From 732cef4317e5a4fd1c08c04aad7f6243b1f4d9f8 Mon Sep 17 00:00:00 2001
From: Karel Picman <karel.picman@kontron.com>
Date: Thu, 25 Aug 2016 15:54:48 +0200
Subject: [PATCH] Deletion of a user #558

---
 lib/redmine_dmsf.rb                    |  1 +
 lib/redmine_dmsf/patches/user_patch.rb | 66 ++++++++++++++++++++++++++
 2 files changed, 67 insertions(+)
 create mode 100644 lib/redmine_dmsf/patches/user_patch.rb

diff --git a/lib/redmine_dmsf.rb b/lib/redmine_dmsf.rb
index 5b9718b2..99dcf62c 100644
--- a/lib/redmine_dmsf.rb
+++ b/lib/redmine_dmsf.rb
@@ -30,6 +30,7 @@ require 'redmine_dmsf/patches/acts_as_customizable'
 require 'redmine_dmsf/patches/project_patch'
 require 'redmine_dmsf/patches/project_tabs_extended'
 require 'redmine_dmsf/patches/user_preference_patch'
+require 'redmine_dmsf/patches/user_patch'
 
 # Load up classes that make up our WebDAV solution ontop of DAV4Rack
 require 'redmine_dmsf/webdav/base_resource'
diff --git a/lib/redmine_dmsf/patches/user_patch.rb b/lib/redmine_dmsf/patches/user_patch.rb
new file mode 100644
index 00000000..5bfd971a
--- /dev/null
+++ b/lib/redmine_dmsf/patches/user_patch.rb
@@ -0,0 +1,66 @@
+# encoding: utf-8
+#
+# Redmine plugin for Document Management System "Features"
+#
+# Copyright (C) 2011-16 Karel Pičman <karel.picman@kontron.com>
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+require_dependency 'user'
+
+module RedmineDmsf
+  module Patches
+    module UserPatch
+
+      def self.included(base) # :nodoc:
+        base.send(:include, InstanceMethods)
+        base.class_eval do
+          unloadable
+
+          before_destroy :remove_references
+        end
+      end
+
+      module InstanceMethods
+
+        def remove_references
+          return if self.id.nil?
+          substitute = User.anonymous
+          DmsfFileRevisionAccess.where(:user_id => id).update_all(:user_id => substitute.id)
+          DmsfFileRevision.where(:user_id => id).update_all(:user_id => substitute.id)
+          DmsfFile.where(:deleted_by_user_id => id).update_all(:deleted_by_user_id => substitute.id)
+          DmsfFolder.where(:user_id => id).update_all(:user_id => substitute.id)
+          DmsfFolder.where(:deleted_by_user_id => id).update_all(:deleted_by_user_id => substitute.id)
+          DmsfLink.where(:user_id => id).update_all(:user_id => substitute.id)
+          DmsfLink.where(:deleted_by_user_id => id).update_all(:deleted_by_user_id => substitute.id)
+          DmsfLock.delete_all(:user_id => id)
+          DmsfWorkflowStepAction.where(:author_id => id).update_all(:author_id => substitute.id)
+          DmsfWorkflowStepAssignment.where(:user_id => id).update_all(:user_id => substitute.id)
+          DmsfWorkflowStep.where(:user_id => id).update_all(:user_id => substitute.id)
+          DmsfWorkflow.where(:author_id => id).update_all(:author_id => substitute.id)
+        end
+
+      end
+
+    end
+  end
+end
+
+# Apply patch
+Rails.configuration.to_prepare do
+  unless Project.included_modules.include?(RedmineDmsf::Patches::UserPatch)
+    User.send(:include, RedmineDmsf::Patches::UserPatch)
+  end
+end