32 lines
795 B
Ruby
32 lines
795 B
Ruby
# frozen_string_literal: true
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class AddLabelRestoreTable < ActiveRecord::Migration[6.0]
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DOWNTIME = false
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def up
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# copy table
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execute "CREATE TABLE #{backup_labels_table_name} (LIKE #{labels_table_name} INCLUDING ALL);"
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# make the primary key a real functioning one rather than incremental
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execute "ALTER TABLE #{backup_labels_table_name} ALTER COLUMN ID DROP DEFAULT;"
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# add some fields that make changes trackable
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execute "ALTER TABLE #{backup_labels_table_name} ADD COLUMN restore_action INTEGER;"
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execute "ALTER TABLE #{backup_labels_table_name} ADD COLUMN new_title VARCHAR;"
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end
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def down
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drop_table backup_labels_table_name
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end
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private
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def labels_table_name
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:labels
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end
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def backup_labels_table_name
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:backup_labels
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end
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end
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