view db/migrate/20090312194159_add_projects_trackers_unique_index.rb @ 107:361f1e8b2e23 luisf

Feature #1:
Fixed the collection_select variable issue
User edit view: removed wiki toolbar and description from the description text area in the user;
User edit view: added institutions collection select;
User show view: institution name now visible.
Users_controller: fixed a bug retrieving the institution name

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.find(: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