[Travis] Test entire suite against MySQL and PostgreSQL

Created by: ariejan

The goal is to support both MySQL and PostgreSQL as back-ends for Gitlab.

Created by: beddari

Thanks, this is the way to go :-)

By Administrator on 2012-03-15T09:02:34 (imported from GitLab)

Created by: ariejan

Postgres is a no-go at this time.

Note uses a polymorphic association, but the notable_id is of type String. This is done to accomodate notes on commits (which are not ActiveRecord objects).

The problem is that Postgres does not typecast "notable_id = 1" properly. This is not an issue with MySQL and Sqlite3.

If anyone has a good solution for this, please let me know.

By Administrator on 2012-03-16T10:29:38 (imported from GitLab)

Created by: ariejan

@randx Do you have an opinion on this?

By Administrator on 2012-03-16T10:31:10 (imported from GitLab)

Created by: ariejan

Current status: http://travis-ci.org/#!/ariejan/gitlabhq

By Administrator on 2012-03-16T10:38:34 (imported from GitLab)

Created by: dubcanada

polymorphic association are kind of a problem in postgres. Take a quick read through http://blog.metaminded.com/2010/11/25/stable-polymorphic-foreign-key-relations-in-rails-with-postgresql/ it may give some lead way, sadly my postgres knowledge is limited if any at all.

By Administrator on 2012-03-16T15:17:42 (imported from GitLab)

Created by: moskvin

I can suggest temporary solution for postgres database. You can add to model of Issue following:

def notes
    Note.find(:all, :conditions => ["noteable_id = '?'", self.id])
end

and replaced upvotes method the following:

def upvotes
    count = 0
    notes = Note.find(:all, :conditions => ["noteable_id = '?'", self.id])
    if notes
        notes.each do |n|
            count+=1 if n.upvote?
        end
    end
    count
end

I was able do just workaround.

By Administrator on 2012-03-27T19:23:42 (imported from GitLab)

Created by: ariejan

@Moskvin that sounds like the way to go. I'd rather do this to keep ARel happy:

def notes
  Note.where(noteable_id: self.id.to_s, noteable_type: 'Issue')
end

Are all the specs green?

By Administrator on 2012-03-27T20:51:27 (imported from GitLab)

Created by: moskvin

I used a simple patch and the gitlab to work very well on my server with postgres:

https://gist.github.com/2226604

Should I do any unit tests for you?

By Administrator on 2012-03-28T14:29:49 (imported from GitLab)

Created by: moskvin

I got another issue with the postgres database connection via redis. And I created another workaround for fix it: https://gist.github.com/2283919

By Administrator on 2012-04-02T14:43:48 (imported from GitLab)

Created by: qbrossard

I would be glad to help with postgresql support. Is somebody working on that? Should I try to collect all the patches mentioned here and work on getting the test suite green?

Regards

Quentin

By Administrator on 2012-05-11T09:56:22 (imported from GitLab)

Created by: moskvin

I tested above patches on my production server and it running on postgres server. Currently I do not do nothing for this issue

By Administrator on 2012-05-11T10:13:50 (imported from GitLab)

Created by: ariejan

@qbrossard Please get it to green! See @Moskvin's patch to see if you can use it.

By Administrator on 2012-05-11T11:35:08 (imported from GitLab)

Created by: dzaporozhets

+1. Waiting for PR

By Administrator on 2012-05-24T08:57:59 (imported from GitLab)

Created by: funny-falcon

Is it possible to add conditional migration and execute following if database is PostgreSQL:

   CREATE CAST (integer AS text) WITH INOUT AS IMPLICIT;

May be just ingnoring exceptions, like that:

class FixPostgresqlMigration < ActiveRecord::Migration
  def up
    execute <<-SQL
      CREATE CAST (integer AS text) WITH INOUT AS IMPLICIT;
    SQL
  rescue ActiveRecord::StatementInvalid
  end

  def down
  end
end

By Administrator on 2012-06-22T10:55:17 (imported from GitLab)

Created by: denispeplin

Migrations is broken for Postgresql, look at #1017

And there are other issues with Postgresql and Redis: #1015 (closed)

By Administrator on 2012-06-29T18:25:46 (imported from GitLab)

Created by: MSch

So the noteable_id is fixed and only the redis issues still remain?

By Administrator on 2012-07-03T15:40:00 (imported from GitLab)

Created by: moskvin

I found issue with connection to postgres via resque. I can suggest following solution https://gist.github.com/3040672

By Administrator on 2012-07-03T16:06:14 (imported from GitLab)

Created by: denispeplin

@Moskvin, your patch works perfect, thanks!

By Administrator on 2012-07-05T11:01:00 (imported from GitLab)

Created by: dzaporozhets

cause postgres support requires too much hack of code we can live w/o it

By Administrator on 2012-10-09T08:31:06 (imported from GitLab)

Created by: zzet

Testing MySQL && PostgreSQL added in #1666

By Administrator on 2012-10-10T11:56:20 (imported from GitLab)