view db/migrate/20091017214644_add_missing_indexes_to_issue_relations.rb @ 1087:74407a04925c issue_540

* (publication.rb) - fixed the acts_as_activity query (see diff to previous commit) - not returning duplicate results any longer; added the visible scope to the publication model;
* (init.rb) - created a new public permission - view_publication.

class AddMissingIndexesToIssueRelations < ActiveRecord::Migration
  def self.up
    add_index :issue_relations, :issue_from_id
    add_index :issue_relations, :issue_to_id
  end

  def self.down
    remove_index :issue_relations, :issue_from_id
    remove_index :issue_relations, :issue_to_id
  end
end