#
# SonarQube, open source software quality management tool.
# Copyright (C) 2008-2016 SonarSource
# mailto:contact AT sonarsource DOT com
#
# SonarQube is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 3 of the License, or (at your option) any later version.
#
# SonarQube 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
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser 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.
#

#
# SonarQube 5.2
# SONAR-6702
#
class UpdateProjectsKeeIndex < ActiveRecord::Migration

  def self.up
    remove_index :projects, :name => 'projects_kee'

    if dialect=='mysql'
      # Index of varchar column is limited to 767 bytes on mysql (<= 255 UTF-8 characters)
      # See http://jira.sonarsource.com/browse/SONAR-4137 and
      # http://dev.mysql.com/doc/refman/5.6/en/innodb-restrictions.html
      #
      # Because of the limitation of 255 characters, the index cannot be unique on MySQL
      add_index :projects, :kee, :name => 'projects_kee', :length => {:kee => 255}
    else
      add_index :projects, :kee, :name => 'projects_kee', :unique => true
    end
  end

end
