General Arel, ActiveRecord Adapter question?

Rails
1

Hi,

I’m considering to make my database* ActiveRecord compatible. To this
end I have some questions, or would appreciate pointers where to ask:

  • as the db is not sql, I think writing an ActiveRecord/sql adapter
    isn’t really the way to go. But then what is?
  • I’ve seen an old Arel had a memory implementation in ruby. As my db
    is a memory db (in ruby/C) this may be a way, alas the code I see has
    little comments. Has anyone attempted such a thing (ie a non-sql
    implementation in arel)
  • is there a specific activerecord /arel mailing list ?

Thanks for any pointers (and sorry this is somewhat of-topic for
most)

Torsten

*warpdb is a memory object(ish) database for ruby
http://github.com/dancinglightning/warpdb
It works for basic things, but has yet to see a real project, so
you’ve been warned.

2

On Oct 2, 4:31 pm, dancinglightning [email protected] wrote:

Hi,

I’m considering to make my database* ActiveRecord compatible. To this
end I have some questions, or would appreciate pointers where to ask:

Do you really mean ActiveRecord compatible or do you just want to
implement the ActiveModel interface ?

Fred

3

I think that your problem is not non-sql database.
Arel is “Relational Algebra for Ruby”, so since you use non-relational
DB, it’s not a good idea to implement any adapters for Arel.
But, Rails 3 has changed ActiveRecord’s model architect (e.g. added
ActiveModel), so you should try to implement some adapter for
ActiveRecord, but not for the Arel.
(Arel is just a query interface for ActiveRecord for relational
databases)

On Oct 2, 8:33 pm, Frederick C. [email protected]

4

Hi,

Do you really mean ActiveRecord compatible or do you just want to
implement the ActiveModel interface ?

Yes, I’ll implement the ActiveModel interface, but what I’m asking is
complete compatibility to an application running against say mysql.

I’m quite willing to adapt the db a bit, but I once tried writing an
sql interpreter and ran out of fun, so tha’s what I’m trying to avoid.
All else goes.

Torsten