diff options
4 files changed, 10 insertions, 14 deletions
diff --git a/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb b/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb index 70d7956baa..8751b6da4b 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb @@ -52,7 +52,6 @@ module ActiveRecord INDEX_TYPES = [:fulltext, :spatial] INDEX_USINGS = [:btree, :hash] - # FIXME: Make the first parameter more similar for the two adapters def initialize(connection, logger, connection_options, config) super(connection, logger, config) @quoted_column_names, @quoted_table_names = {}, {} @@ -65,6 +64,10 @@ module ActiveRecord else @prepared_statements = false end + + if version < '5.0.0' + raise "Your version of MySQL (#{full_version.match(/^\d+\.\d+\.\d+/)[0]}) is too old. Active Record supports MySQL >= 5.0." + end end CHARSETS_OF_4BYTES_MAXLEN = ['utf8mb4', 'utf16', 'utf16le', 'utf32'] @@ -98,12 +101,8 @@ module ActiveRecord true end - # MySQL 4 technically support transaction isolation, but it is affected by a bug - # where the transaction level gets persisted for the whole session: - # - # http://bugs.mysql.com/bug.php?id=39170 def supports_transaction_isolation? - version >= '5.0.0' + true end def supports_explain? @@ -119,17 +118,15 @@ module ActiveRecord end def supports_views? - version >= '5.0.0' + true end def supports_datetime_with_precision? version >= '5.6.4' end - # 5.0.0 definitely supports it, possibly supported by earlier versions but - # not sure def supports_advisory_locks? - version >= '5.0.0' + true end def get_advisory_lock(lock_name, timeout = 0) # :nodoc: diff --git a/activerecord/test/cases/defaults_test.rb b/activerecord/test/cases/defaults_test.rb index 69b0487dd8..067513e24c 100644 --- a/activerecord/test/cases/defaults_test.rb +++ b/activerecord/test/cases/defaults_test.rb @@ -201,8 +201,7 @@ if current_adapter?(:Mysql2Adapter) assert_equal '0', klass.columns_hash['zero'].default assert !klass.columns_hash['zero'].null - # 0 in MySQL 4, nil in 5. - assert [0, nil].include?(klass.columns_hash['omit'].default) + assert_equal nil, klass.columns_hash['omit'].default assert !klass.columns_hash['omit'].null assert_raise(ActiveRecord::StatementInvalid) { klass.create! } diff --git a/railties/lib/rails/generators/rails/app/templates/config/databases/jdbcmysql.yml b/railties/lib/rails/generators/rails/app/templates/config/databases/jdbcmysql.yml index 5ca549a8c8..f2c4922e7d 100644 --- a/railties/lib/rails/generators/rails/app/templates/config/databases/jdbcmysql.yml +++ b/railties/lib/rails/generators/rails/app/templates/config/databases/jdbcmysql.yml @@ -1,4 +1,4 @@ -# MySQL. Versions 4.1 and 5.0 are recommended. +# MySQL. Versions 5.0 and up are supported. # # Install the MySQL driver: # gem install activerecord-jdbcmysql-adapter diff --git a/railties/lib/rails/generators/rails/app/templates/config/databases/mysql.yml b/railties/lib/rails/generators/rails/app/templates/config/databases/mysql.yml index 119c2fe2c3..193423e84a 100644 --- a/railties/lib/rails/generators/rails/app/templates/config/databases/mysql.yml +++ b/railties/lib/rails/generators/rails/app/templates/config/databases/mysql.yml @@ -1,4 +1,4 @@ -# MySQL. Versions 5.0+ are recommended. +# MySQL. Versions 5.0 and up are supported. # # Install the MySQL driver # gem install mysql2 |