diff options
| -rw-r--r-- | activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb b/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb index 67d70b3886..55f67995d1 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb @@ -331,15 +331,26 @@ module ActiveRecord end def assume_migrated_upto_version(version) + version = version.to_i sm_table = quote_table_name(ActiveRecord::Migrator.schema_migrations_table_name) + migrated = select_values("SELECT version FROM #{sm_table}").map(&:to_i) versions = Dir['db/migrate/[0-9]*_*.rb'].map do |filename| filename.split('/').last.split('_').first.to_i end - execute "INSERT INTO #{sm_table} (version) VALUES ('#{version}')" unless migrated.include?(version.to_i) - (versions - migrated).select { |v| v < version.to_i }.each do |v| - execute "INSERT INTO #{sm_table} (version) VALUES ('#{v}')" + unless migrated.include?(version) + execute "INSERT INTO #{sm_table} (version) VALUES ('#{version}')" + end + + inserted = Set.new + (versions - migrated).each do |v| + if inserted.include?(v) + raise "Duplicate migration #{v}. Please renumber your migrations to resolve the conflict." + elsif v < version + execute "INSERT INTO #{sm_table} (version) VALUES ('#{v}')" + inserted << v + end end end |