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class AddAuditableNameAndAssociatedNameToAudit < ActiveRecord::Migration[4.2]
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def up
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add_column :audits, :auditable_name, :string, :limit => 255 unless column_exists? :audits, :auditable_name
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add_column :audits, :associated_name, :string, :limit => 255 unless column_exists? :audits, :associated_name
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add_index :audits, :id unless index_exists? :audits, :id
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Audit.reset_column_information
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say "About to review all audits, this may take a while..."
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Audit.includes(:user, :auditable, :associated).find_in_batches do |audits|
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audits.each do |audit|
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attr = {}
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auditable_name ||= audit.auditable.try(:to_label) rescue nil
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associated_name ||= audit.associated.try(:to_label) rescue nil
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attr[:auditable_name] = auditable_name if auditable_name
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attr[:associated_name] = associated_name if associated_name
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if audit.username.empty? && audit.user
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username = audit.user.to_label rescue nil
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attr[:username] = username unless username.empty?
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end
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audit.update_multiple_attribute(attr) unless attr.empty?
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end
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end
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end
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def down
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remove_index :audits, :id if index_exists? :audits, :id
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remove_column :audits, :associated_name if column_exists? :audits, :associated_name
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remove_column :audits, :auditable_name if column_exists? :audits, :auditable_name
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end
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end
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