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class AddUniqueToOperatingsystemsTitle < ActiveRecord::Migration
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def up
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dups = Operatingsystem.all.group_by(&:fullname).values.keep_if { |ary| ary.length > 1}
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dups.each do |systems|
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systems.sort! { |a, b| b.hosts_count <=> a.hosts_count }.shift
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systems.each_with_index do |os, index|
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os.name = os.name + "-#{index + 1}"
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os.save!
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end
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end
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duplicities = Operatingsystem.all.group_by(&:title).values.keep_if { |ary| ary.length > 1}
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duplicities.each do |systems|
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systems.each do |os|
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os.description = os.fullname
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os.save!
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end
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end
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add_index :operatingsystems, :title, :unique => true
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change_column_null :operatingsystems, :name, false
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add_index :operatingsystems, [:name, :major, :minor], :unique => true
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end
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def down
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remove_index :operatingsystems, :title
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change_column_null :operatingsystems, :name, true
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remove_index :operatingsystems, [:name, :major, :minor]
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end
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end
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