> -----Original Message-----
> From: [email protected] On Behalf Of Tressières, 
> Thomas (CA-CIB)
> Sent: 31 August 2011 08:37
> To: [email protected]
> Subject: RE: [Trac] Re: Migrating from SQLite to PostgreSQL
> 
> Hi,
> 
> I'm currently trying to convert a sqlite to postgres database 
> and i found your problem. I use Trac 0.12.2
> 
> The solution is to add in trac.ini file the following line in 
> [components] section
> 
> trac.db.postgres_backend.postgresqlconnector = enabled
> 
> Hope that helps....
> 

I can only say "D'oh!" (why didn't I think of that) ~ and "Thanks!"

~ mark c

> -----Original Message-----
> From: [email protected] 
> [mailto:[email protected]] On Behalf Of Ryan Steele
> Sent: mardi 16 août 2011 14:26
> To: [email protected]
> Subject: Re: [Trac] Re: Migrating from SQLite to PostgreSQL
> 
> Cooke, Mark wrote:
> >> -----Original Message----- From: [email protected] 
> >> [mailto:[email protected]] On Behalf Of Ryan 
> Steele Sent: 15
> >> August 2011 20:13 To: [email protected] Subject: 
> Re: [Trac] Re:
> >> Migrating from SQLite to PostgreSQL
> >> 
> >> Cooke, Mark wrote:
> >>> Seeing as you sound like someone capable of tinkering 
> with code, what
> >>> happens if you try to use pyscopg2 directly from a python 
> prompt to
> >>> access the backend dB you setup with that new project 
> earlier?  Lets take
> >>> Trac and the script out of this until we know that 
> pyscopg2 works for
> >>> your user OK...
> >>> 
> >>> ~ mark c
> >>> 
> >> Well, isn't psycopg2 required to perform 'trac-admin 
> /path/to/trac initenv
> >> ...' for a PG backend?  Since that worked, I would think 
> that's a valid
> >> test, unless you feel differently?
> >> 
> >> Cheers, Ryan
> >> 
> > Hmm, yes, I suppose so!  I know nothing about the script 
> you mentioned and at
> > the moment I am running out of ideas.  I just checked and 
> someone claims that
> > the script worked fine with 0.11 but that the last update 
> was in 2008.
> > 
> > What is the command line you are using?
> > 
> > Perhaps someone else can suggest something?
> > 
> > ~ mark c
> > 
> 
> 
> I appreciate the help, anyways.  Maybe John Hampton will get 
> a chance to hop in,
> since he authored the script.
> 
> The command is:
> ./sqlite2pg.py -e /path/to/trac -p 
> 'postgres://user:pass@localhost:5432/trac'
> 
> 
> The stack trace is:
> Traceback (most recent call last):
>   File "./sqlite2pg.py", line 335, in <module>
>     sys.exit(main(sys.argv[1:]))
>   File "./sqlite2pg.py", line 331, in main
>     Main(opts)
>   File "./sqlite2pg.py", line 244, in Main
>     pgenv = getPostgreSQLEnvironment(opts)
>   File "./sqlite2pg.py", line 209, in getPostgreSQLEnvironment
>     cnx = env.get_db_cnx()
>   File "/usr/lib/python2.6/dist-packages/trac/env.py", line 285, in
> get_db_cnx
>     return DatabaseManager(self).get_connection()
>   File "/usr/lib/python2.6/dist-packages/trac/db/api.py", line 90, in
> get_connection
>     connector, args = self._get_connector()
>   File "/usr/lib/python2.6/dist-packages/trac/db/api.py", line 131, in
> _get_connector
>     raise TracError('Unsupported database type "%s"' % scheme)
> trac.core.TracError: Unsupported database type "postgres"
> 
> 
> The sys.path is:
> ['/root', '/usr/lib/python2.6', '/usr/lib/python2.6/plat-linux2',
> '/usr/lib/python2.6/lib-tk', '/usr/lib/python2.6/lib-old',
> '/usr/lib/python2.6/lib-dynload', '/usr/lib/python2.6/dist-packages',
> '/usr/lib/python2.6/dist-packages/PIL', 
> '/usr/lib/pymodules/python2.6',
> '/usr/lib/pymodules/python2.6/gtk-2.0', 
> '/usr/local/lib/python2.6/dist-packages']
> 
> 
> The relevant modules are located in the path:
> /usr/lib/python2.6/dist-packages/psycopg2
> /usr/lib/python2.6/dist-packages/trac
> /usr/lib/python2.6/dist-packages/trac/db/postgres_backend.py
> /usr/lib/python2.6/dist-packages/trac/db/sqlite_backend.py
> 
> 
> Debugging output shows it finds psycopg2, but doesn't load 
> the PG connector:
> has_psycopg: True
> scheme: postgres
> connectors: [<trac.db.sqlite_backend.SQLiteConnector object 
> at 0x1c12b10>]
> candidates: []
> 
> 
> And, that's the reason it fails - the 'postgres' schema 
> doesn't match any in the
> candidates list.  If it's not a path issue, which it appears 
> not to be, I'd
> almost say it kinda feels like a namespace issue.  Others 
> have reported this
> problem (when the paths are correct), but unfortunately there 
> are no resolutions
> out there.
> 
> 
> Cheers,
> Ryan
> 
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