db/migrate/20190521003909_rewrite_scoped_tag_delims.rb


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class RewriteScopedTagDelims < ActiveRecord::Migration[5.2]
  disable_ddl_transaction!
  def up
    Tag.where("tags.name LIKE '%:%'").find_each do |tag|
      tag.name.gsub!(':', '.')
      tag.save
    end
  end
end