# To test behaviour with autosaving too much
# Results at the bottom, v6, v7, v8 all save too much though v7 is by far the worst
# & is what prompted me to patch this in the first place

$save_ctr = Hash.new {|h,k| h[k] = 0}

class Table
  include Mongoid::Document
  include Mongoid::Timestamps::Updated

  has_many :rows, autosave: true
  after_save { $save_ctr[self.class] += 1 }
end

class Row
  include Mongoid::Document
  belongs_to :table
  has_many :cells, autosave: true
  after_save { $save_ctr[self.class] += 1 }
end

class Cell
  include Mongoid::Document
  belongs_to :row
  after_save { $save_ctr[self.class] += 1 }
end

table = Table.new
10.times do
  row = table.rows.build
  10.times do
    row.cells.build
  end
end
table.save!

# Reset counter
$save_ctr = Hash.new {|h,k| h[k] = 0}

table = Table.find(table.id)
new_row = table.rows.build
new_row.cells.build
table.save

# Patched v7-support: 1 table, 1 row, 1 cell
#
# v6.4.8 - 1 table, 2 row, 1 cell
# v7.5.4 - 1 table, 11 row, 101 cell
# v8.1.5 - 1 table, 11 row, 1 cell
pp $save_ctr