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author | Rolf Timmermans <r.timmermans@voormedia.com> | 2011-03-27 17:18:32 +0200 |
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committer | Rolf Timmermans <r.timmermans@voormedia.com> | 2011-03-27 17:18:32 +0200 |
commit | 512057d386075f207d8927a5e0ce3943174d5c78 (patch) | |
tree | c0b9122469af1e4af74142cc2cad6d560226753c /activerecord/lib/active_record/validations/uniqueness.rb | |
parent | d89a7967b5af5c87bbfc268af72287b82541d384 (diff) | |
parent | a9d27c04abf24dc85be061ff9772d71897af02b1 (diff) | |
download | rails-512057d386075f207d8927a5e0ce3943174d5c78.tar.gz rails-512057d386075f207d8927a5e0ce3943174d5c78.tar.bz2 rails-512057d386075f207d8927a5e0ce3943174d5c78.zip |
Merge remote-tracking branch 'upstream/master' into desc_tracker
Diffstat (limited to 'activerecord/lib/active_record/validations/uniqueness.rb')
-rw-r--r-- | activerecord/lib/active_record/validations/uniqueness.rb | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/activerecord/lib/active_record/validations/uniqueness.rb b/activerecord/lib/active_record/validations/uniqueness.rb index a96796f9ff..9cd6c26322 100644 --- a/activerecord/lib/active_record/validations/uniqueness.rb +++ b/activerecord/lib/active_record/validations/uniqueness.rb @@ -173,10 +173,17 @@ module ActiveRecord # This technique is also known as optimistic concurrency control: # http://en.wikipedia.org/wiki/Optimistic_concurrency_control # - # Active Record currently provides no way to distinguish unique - # index constraint errors from other types of database errors, so you - # will have to parse the (database-specific) exception message to detect - # such a case. + # The bundled ActiveRecord::ConnectionAdapters distinguish unique index + # constraint errors from other types of database errors by throwing an + # ActiveRecord::RecordNotUnique exception. + # For other adapters you will have to parse the (database-specific) exception + # message to detect such a case. + # The following bundled adapters throw the ActiveRecord::RecordNotUnique exception: + # * ActiveRecord::ConnectionAdapters::MysqlAdapter + # * ActiveRecord::ConnectionAdapters::Mysql2Adapter + # * ActiveRecord::ConnectionAdapters::SQLiteAdapter + # * ActiveRecord::ConnectionAdapters::SQLite3Adapter + # * ActiveRecord::ConnectionAdapters::PostgreSQLAdapter # def validates_uniqueness_of(*attr_names) validates_with UniquenessValidator, _merge_attributes(attr_names) |