Adds ability to bulk copy issues (#1847).

This can be done by checking the 'Copy' checkbox on the 'Move' form.

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@2313 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/models/issue.rb

@@ -71,34 +71,43 @@ class Issue < ActiveRecord::Base
     self
   end
   
-  # Move an issue to a new project and tracker
-  def move_to(new_project, new_tracker = nil)
+  # Moves/copies an issue to a new project and tracker
+  # Returns the moved/copied issue on success, false on failure
+  def move_to(new_project, new_tracker = nil, options = {})
+    options ||= {}
+    issue = options[:copy] ? self.clone : self
     transaction do
-      if new_project && project_id != new_project.id
+      if new_project && issue.project_id != new_project.id
         # delete issue relations
         unless Setting.cross_project_issue_relations?
-          self.relations_from.clear
-          self.relations_to.clear
+          issue.relations_from.clear
+          issue.relations_to.clear
         end
         # issue is moved to another project
         # reassign to the category with same name if any
-        new_category = category.nil? ? nil : new_project.issue_categories.find_by_name(category.name)
-        self.category = new_category
-        self.fixed_version = nil
-        self.project = new_project
+        new_category = issue.category.nil? ? nil : new_project.issue_categories.find_by_name(issue.category.name)
+        issue.category = new_category
+        issue.fixed_version = nil
+        issue.project = new_project
       end
       if new_tracker
-        self.tracker = new_tracker
+        issue.tracker = new_tracker
       end
-      if save
-        # Manually update project_id on related time entries
-        TimeEntry.update_all("project_id = #{new_project.id}", {:issue_id => id})
+      if options[:copy]
+        issue.custom_field_values = self.custom_field_values.inject({}) {|h,v| h[v.custom_field_id] = v.value; h}
+        issue.status = self.status
+      end
+      if issue.save
+        unless options[:copy]
+          # Manually update project_id on related time entries
+          TimeEntry.update_all("project_id = #{new_project.id}", {:issue_id => id})
+        end
       else
-        rollback_db_transaction
+        Issue.connection.rollback_db_transaction
         return false
       end
     end
-    return true
+    return issue
   end
   
   def priority_id=(pid)