demarches-normaliennes/db/migrate/20210427120001_add_unique_index_to_procedures.rb

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class AddUniqueIndexToProcedures < ActiveRecord::Migration[6.1]
include Database::MigrationHelpers
disable_ddl_transaction!
def up
delete_duplicates :procedures, [:path, :closed_at, :hidden_at, :unpublished_at]
add_concurrent_index :procedures, [:path, :closed_at, :hidden_at, :unpublished_at], name: 'procedure_path_uniqueness', unique: true
end
def down
remove_index :procedures, [:path, :closed_at, :hidden_at, :unpublished_at], name: 'procedure_path_uniqueness'
end
end