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Once the values are cached, only one database query is done at each user request (to check if the cache is still valid). git-svn-id: http://redmine.rubyforge.org/svn/trunk@685 e93f8b46-1217-0410-a6f0-8f06a7374b81
12 lignes
248 B
Ruby
12 lignes
248 B
Ruby
class AddSettingsUpdatedOn < ActiveRecord::Migration
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def self.up
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add_column :settings, :updated_on, :timestamp
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# set updated_on
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Setting.find(:all).each(&:save)
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end
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def self.down
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remove_column :settings, :updated_on
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end
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end
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