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8 lines
271 B
Ruby
8 lines
271 B
Ruby
class AddDaysVisitedToUsers < ActiveRecord::Migration[4.2]
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def change
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add_column :users, :days_visited, :integer, null: false, default: 0
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execute "UPDATE users AS u SET days_visited = (SELECT COUNT(*) FROM user_visits AS uv WHERE uv.user_id = u.id)"
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end
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end
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