silva code source debugging

[Marc Petitmermet]

when developping silva code sources one needs more debugging info. currenty, i
have to disable the try/expect clauses in
SilvaDocument/widgets/element/doc_elements/source/rendered_source.py to get more
info. after all,

<PythonScript at /silva/ssb/insert_form/control_center>
Line 58

is so much more helpful than

[external source element is broken]
error message: coercing to Unicode: need string or buffer, instance found

maybe you could enable enhanced debugging when zope is running in debugging mode
anyway.

[Andy Altepeter (aaltepet)]

Attached are two patches required to get this working. One line of code needs
to be added to
SilvaDocument/widgets/element/doc_elements/source/rendered_source.py, which
triggers logging the error to the zope error log. The patch for
SilvaExternalSources adds a log_traceback function to the ExternalSource class.

[Andy Altepeter (aaltepet)]

Note: this is for SilvaDocument 1.5, SilvaExternalSources svn trunk (rev: 18955).

[Andy Altepeter (aaltepet)]

This has been committed to the SilvaExternalSources trunk.