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15 lines
423 B
Ruby
15 lines
423 B
Ruby
# frozen_string_literal: true
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class AddUsernameLowerToUsers < ActiveRecord::Migration[4.2]
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def up
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add_column :users, :username_lower, :string, limit: 20
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execute "update users set username_lower = lower(username)"
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add_index :users, [:username_lower], unique: true
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change_column :users, :username_lower, :string, limit: 20, null: false
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end
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def down
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remove_column :users, :username_lower
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end
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end
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