view .svn/pristine/d1/d1fe1a10e719bee9e65cf063fc9ec9a0c05f2327.svn-base @ 1625:808a40a7cac7 live

Have a go at fixing #570 Can't delete downloadable file from version in project with no issue tracker

class AddProjectsTrackersUniqueIndex < ActiveRecord::Migration
  def self.up
    remove_duplicates
    add_index :projects_trackers, [:project_id, :tracker_id], :name => :projects_trackers_unique, :unique => true
  end

  def self.down
    remove_index :projects_trackers, :name => :projects_trackers_unique
  end

  # Removes duplicates in projects_trackers table
  def self.remove_duplicates
    Project.all.each do |project|
      ids = project.trackers.collect(&:id)
      unless ids == ids.uniq
        project.trackers.clear
        project.tracker_ids = ids.uniq
      end
    end
  end
end