Reposting here (was sent to rubyonrails-talk)
On/El 24/06/08 16:19, Grant Croker wrote/escribió:
> Hi all,
>
> I am in the process of adding Migration support to the Ingres
> ActiveRecord adapter and have run in to a problem. During the call to
> create_table the Ingres adapter some how causes ruby to blow the stack
> and coredump/segv. I have tracked down the problem down to
> "add_column_options!" in
> "lib/active_record/connection_adapters/abstract/schema_statements.rb".
> Specifically the following line never gets executed:
>
> sql << " DEFAULT #{quote(options[:default], options[:column])}" if
> options_include_default?(options)
>
> As a result the code keeps looping . Comparing the contents of
> "options" for MySQL and Ingres I don't see anything of any
> significance that would cause the call not to work. Below is a dump of
> "options" using ruby-debug:
>
> MySQL
> {:default=>nil,
> :column=>#<struct ActiveRecord::ConnectionAdapters::ColumnDefinition
> base=#<ActiveRecord::ConnectionAdapters::MysqlAdapter:0xb6fc6f50
> @logger=#<ActiveSupport::BufferedLogger:0xb70935f0
> @log=#<File:/home/grant/stuff/ruby/rails/auction-demo-mysql/log/development.log>,
>
>
> @no_block=false,
> @auto_flushing=1,
> @buffer=[],
> @level=0>,
> @runtime=0.134179830551147,
> @quoted_column_names={"unique_schema_migrations"=>"`unique_schema_migrations`",
>
>
> "schema_migrations"=>"`schema_migrations`",
> "id"=>"`id`",
> "auctions"=>"`auctions`",
> :version=>"`version`",
> :title=>"`title`"},
> @connection=#<Mysql:0xb6fc8418>,
> @connection_options=[nil,
> "root",
> "",
> "auction_development",
> nil,
> nil],
> @config={:allow_concurrency=>false,
> :adapter=>"mysql",
> :database=>"auction_development"},
> @query_cache_enabled=false,
> @last_verification=0,
> @quoted_table_names={"schema_migrations"=>"`schema_migrations`",
> "auctions"=>"`auctions`"}>,
> name=:title,
> type="string",
> limit=255,
> precision=nil,
> scale=nil,
> default=nil,
> null=nil>,
> :null=>nil}
>
> Ingres
> {:default=>nil,
> :column=>#<struct ActiveRecord::ConnectionAdapters::ColumnDefinition
> base=#<ActiveRecord::ConnectionAdapters::IngresAdapter:0xb7004f80
> @primary_key=nil,
> @logger=#<ActiveSupport::BufferedLogger:0xb70ceb3c
> @log=#<File:/home/grant/stuff/ruby/rails/auction-demo/log/development.log>,
>
> @no_block=false,
> @auto_flushing=1,
> @buffer=[],
> @level=0>,
> @runtime=0.0605983734130859,
> @connection=#<Ingres:0xb7005084>,
> @query_cache_enabled=false,
> @last_verification=0>,
> name=:title,
> type="string",
> limit=nil,
> precision=nil,
> scale=nil,
> default=nil,
> null=nil>,
> :null=>nil}
>
> I was wondering if anyone, had come across something similar when
> writing and adapter for ActiveRecord for another database engine. Or
> if anyone can point out some things I can try it would be greatly
> appreciated
>
> regads
>
> grant
>
--
Grant Croker - Ingres PHP, Ruby and Python maintainer
I refuse to answer that question on the grounds that I don't know
the answer.
- (Zaphod Beeblebrox)
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