A quasi-CVS install of 0.4, a problem with database drivers, and more

[Stanley A. Klein]

First let me describe my quasi-CVS install of 0.4.  I wanted to install 0,4
locally in my user space (/home/stan).  Here are some directions on how to
do this:

1.  Download the tar.gz files from www.gnuenterprise.org.  

2.  Create a directory (example:  /home/stan/usr/gnue/gnue.0.4) and copy
the tar.gz files there.  

3.  Upack the tar.gz files (tar -xvzf filename) in that directory. 

4.  Create symbolic links to the unpacked directories using the directory
names used in CVS (common, appserver, forms, reports, navigator, etc.).

5.  Copy setup-cvs.py from CVS into the directory.  [Perhaps we should
supply this as a separate file with the stable versions for this purpose.]

6.  Run setup-cvs.py and respond to the questions regarding placement of
the commands and config files.

The commands for tools in my installation are the same as for CVS, except
they are in a different place.  It might be nicer to provide a variant of
setup-cvs.py with code that creates the symbolic links in (4) and changes
the command names to what they would be in the package-installed version in
/usr.

Now for the problem.  I downloaded and installed the pypgsql package.  It
required a symbolic link in /usr/python2.1/site-packages because the rpm
put it in a different place.  (My system is Red Hat 7.2.)  So unless there
is something further I need to do or the error is being caused by something
wrong in the driver itself (a wrong version?) I think the driver is
available and visible.

I started Designer and tried to connect to a database having connection
configuration of:

[cbc-design]
comment = CBC database design
provider = pypgsql
host = p500
dbname = cbc-design

I got the following error message:

DB000: Traceback (most recent call last):
DB000:   File
"/home/stan/usr/gnue/gnue-0.4/.cvsdevelbase/gnue/designer/Instance.py",
line 400, in OnConnectTo
DB000:     tempDO = self.connections.getDataObject(conn, 'object')
DB000:   File
"/home/stan/usr/gnue/gnue-0.4/.cvsdevelbase/gnue/common/GConnections.py",
line 192, in getDataObject
DB000:     'provider'), connection_type, self)
DB000:   File
"/home/stan/usr/gnue/gnue-0.4/.cvsdevelbase/gnue/common/GConnections.py",
line 327, in _load_dbdriver
DB000:     raise GDataObjects.ProviderNotSupportedError, \
DB000: gnue.common.GDataObjects.ProviderNotSupportedError: No database
driver found for provider type 'pypgsql'


Do I need to do more to install the driver?  Is there something obvious I'm
doing wrong?  Is this a bug?  How can I diagnose this?

Also, I want to suggest the need for an improvement in the error messages
and/or diagnostic capability.  I had a syntax error in one line of the
connections file (a "-" where a "=" belonged).  The only message I got was
that the connections file was in a wrong format and could not be parsed.
[My immediate reaction was that there might have been a redesign of the
connections file format that was not yet reflected either in the
documentation or the connections file examples.  I even filed Ticket 141
asking for the format to be documented or the samples updated.)

It would help if there were some way to provide a further indication of the
nature or location of the parsing error.  


Stan Klein