While I don't use this feature, there are developers who do. It's useful when running migrations and changing branches. I'm raising an `ActiveRecord::IrreversibleMigration` exception in every `drop_table` migration because these migrations were all done before version 1.0.0, and so making all of them reversible would be too much work for little benefit.
16 lines
471 B
Ruby
16 lines
471 B
Ruby
class RemovePollFinalRecounts < ActiveRecord::Migration[4.2]
|
|
def up
|
|
remove_index :poll_final_recounts, column: :booth_assignment_id
|
|
remove_index :poll_final_recounts, column: :officer_assignment_id
|
|
|
|
remove_foreign_key :poll_final_recounts, column: "booth_assignment_id"
|
|
remove_foreign_key :poll_final_recounts, column: "officer_assignment_id"
|
|
|
|
drop_table :poll_final_recounts
|
|
end
|
|
|
|
def down
|
|
fail ActiveRecord::IrreversibleMigration
|
|
end
|
|
end
|