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19 lines
855 B
19 lines
855 B
class MigrateSettings < ActiveRecord::Migration[4.2]
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def up
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remove_index :settings, [:target_type, :target_id, :var]
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rename_column :settings, :target_id, :thing_id
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rename_column :settings, :target_type, :thing_type
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change_column :settings, :thing_id, :integer, null: true, default: nil
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change_column :settings, :thing_type, :string, null: true, default: nil
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add_index :settings, [:thing_type, :thing_id, :var], unique: true
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end
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def down
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remove_index :settings, [:thing_type, :thing_id, :var]
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rename_column :settings, :thing_id, :target_id
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rename_column :settings, :thing_type, :target_type
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change_column :settings, :target_id, :integer, null: false
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change_column :settings, :target_type, :string, null: false, default: ''
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add_index :settings, [:target_type, :target_id, :var], unique: true
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end
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end
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