I encountered this problem a few months ago and spent a little time investigating.
To understand what's going on, take a look at the source for Class::DBI's add_constraint method. Constraints are just before_set triggers that, on failure, croak with the error message you observed.
So, if you wrote a before_set_namespace trigger, you could behave as you choose on error.
The particular problem I encountered was that I wanted to list all failed constraints. I used a combination of triggers and two layers Exception::Class events.
I apologise if this seems a little vague: I don't have access to the code any more and don't recall exactly what I did.
Oh, and of course Perl modules can be cool. Distrust anyone who claims otherwise.
Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
Read Where should I post X? if you're not absolutely sure you're posting in the right place.
Please read these before you post! —
Posts may use any of the Perl Monks Approved HTML tags:
You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
- a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
Link using PerlMonks shortcuts! What shortcuts can I use for linking?
See Writeup Formatting Tips and other pages linked from there for more info.
| & || & |
| < || < |
| > || > |
| [ || [ |
| ] || ] ||