class MoveWeeklyTasks < ActiveRecord::Migration[4.2] def up Workgroup.where(weekly_task: true).each do |workgroup| task_group = PeriodicTaskGroup.create puts "Moving weekly task for workgroup #{workgroup.name} to group #{task_group.id}" workgroup.tasks.undone.each do |task| task.update_column(:periodic_task_group_id, task_group.id) if weekly_task?(workgroup, task) end tasks = task_group.tasks.order(:due_date) task_group.next_task_date = tasks.last.due_date + PeriodicTaskGroup::PeriodDays unless tasks.empty? task_group.save! puts "Associated #{tasks.count} tasks with group and set next_task_date to #{task_group.next_task_date}" end end def down PeriodicTaskGroup.all.each do |task_group| unless task_group.tasks.empty? task = task_group.tasks.first workgroup = task.workgroup puts "Writing task data of group #{task_group.id} to workgroup #{workgroup.name}" workgroup_attributes = { weekly_task: true, weekday: task.due_date.days_to_week_start(:sunday), task_name: task.name, task_description: task.description, task_required_users: task.required_users, task_duration: task.duration } workgroup.update_attributes workgroup_attributes task_group.tasks.update_all weekly: true end end end private def weekly_task?(workgroup, task) return false if task.due_date.nil? group_task = { weekday: workgroup.weekday, name: workgroup.task_name, description: workgroup.task_description, required_users: workgroup.task_required_users, duration: workgroup.task_duration, weekly: true, done: false, workgroup_id: workgroup.id } task_task = { weekday: task.due_date.days_to_week_start(:sunday), name: task.name, description: task.description, required_users: task.required_users, duration: task.duration, weekly: task.weekly, done: task.done, workgroup_id: task.workgroup_id } group_task == task_task end end