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Add hint to error message of task db:migrate:down

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This commit is contained in:
Philippe Creux 2014-02-13 10:46:22 -08:00
parent 40e7fe3451
commit b2831904e5
1 changed files with 1 additions and 1 deletions
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activerecord/lib/active_record/railties/databases.rake
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@ -75,7 +75,7 @@ db_namespace = namespace :db do
# desc 'Runs the "down" for a given migration VERSION.' # desc 'Runs the "down" for a given migration VERSION.'
task :down => [:environment, :load_config] do task :down => [:environment, :load_config] do
version = ENV['VERSION'] ? ENV['VERSION'].to_i : nil version = ENV['VERSION'] ? ENV['VERSION'].to_i : nil
raise 'VERSION is required' unless version raise 'VERSION is required - To go down one migration, run db:rollback' unless version
ActiveRecord::Migrator.run(:down, ActiveRecord::Migrator.migrations_paths, version) ActiveRecord::Migrator.run(:down, ActiveRecord::Migrator.migrations_paths, version)
db_namespace['_dump'].invoke db_namespace['_dump'].invoke
end end