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impress/db/migrate/20110804134432_add_timestamps_to_items.rb
Matchu b2a027fbbf Oops, should've used migration version 4.2
Oh I didn't realize the lowest version Rails had for this is 4.2. I wish running `rake db:migrate` checked this, but I'm running into it on another branch when I try to create a *new* migration which for some reason leads it to inspect the old migrations and notice the issue. Weird!
2023-10-23 19:05:08 -07:00

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390 B
Ruby

class AddTimestampsToItems < ActiveRecord::Migration[4.2]
def self.up
add_timestamps :objects
timestamp_query = "(SELECT created_at FROM contributions WHERE contributed_id = objects.id AND contributed_type = 'Item')"
update "UPDATE objects SET created_at = #{timestamp_query}, updated_at = #{timestamp_query}"
end
def self.down
remove_timestamps :objects
end
end