discourse/db/migrate/20200120131338_drop_unused_columns.rb

# frozen_string_literal: true

class DropUnusedColumns < ActiveRecord::Migration[6.0]
  DROPPED_COLUMNS ||= {
    post_replies: %i[reply_id],
    user_profiles: %i[card_background profile_background],
  }

  def up
    DROPPED_COLUMNS.each { |table, columns| Migration::ColumnDropper.execute_drop(table, columns) }
  end

  def down
    raise ActiveRecord::IrreversibleMigration
  end
end