perlquestion cLive ;-) <p>Last night I was wiped, but here's an expanded version...</p> <p>I wrote a standlone, minimal example, after reading <a href="http://dbix-class.35028.n2.nabble.com/DBIx-Class-Validation-croak-s-With-The-Validation-Result-td6006401.html">this discussion</a> (about the only one I could find on the module).</p> <code> #!/usr/bin/perl use strict; use Overhaul::DB; my $dbx = Overhaul::DB->new('track'); my $schema = $dbx->schema; # this works as expected my $valid_result = $schema->resultset('track::Result')->create({ first_name => 'Clive', last_name => 'Testing', }); $valid_result->delete; my $bad_result = try { $schema->resultset('track::Result')->create({ last_name => 'Testing', }); } catch { $_ }; print "**************** We made it to here\n"; </code> <p>When I run it though, it dumps the error:</p> <code> Overhaul::DB::Schema::Result::track::Result: Validation failed. { 'first_name' => [ 'First name is required' ] } </code> <p>(yay, I wanted that). But then it dumps a stack trace and quits. Am I meant to overload the DBIx::Class exception handler?</p> <code> at /usr/local/share/perl5/DBIx/Class/Result/Validation.pm line 214 at /usr/local/share/perl5/DBIx/Class/Result/Validation.pm line 208 DBIx::Class::Result::Validation::__ANON__('Overhaul::DB::Schema::Result::track::Result: Validation faile...') called at /usr/local/share/perl5/Try/Tiny.pm line 100 Try::Tiny::try('CODE(0x1e3ab10)', 'Try::Tiny::Catch=REF(0x1933640)') called at /usr/local/share/perl5/DBIx/Class/Result/Validation.pm line 214 DBIx::Class::Result::Validation::_try_next_method('Overhaul::DB::Schema::Result::track::Result=HASH(0x1e3ad98)', 'CODE(0xc591f0)', undef) called at /usr/local/share/perl5/DBIx/Class/Result/Validation.pm line 169 DBIx::Class::Result::Validation::insert('Overhaul::DB::Schema::Result::track::Result=HASH(0x1e3ad98)', undef) called at Overhaul/DB/Schema/Result/track/Result.pm line 62 Overhaul::DB::Schema::Result::track::Result::insert('Overhaul::DB::Schema::Result::track::Result=HASH(0x1e3ad98)') called at /usr/share/perl5/DBIx/Class/ResultSet.pm line 2196 DBIx::Class::ResultSet::create('DBIx::Class::ResultSet=HASH(0x1e3ad80)', 'HASH(0x1c4dcb8)') called at tmp.pl line 18 </code> <p>When I switch it out to an eval, it works:</p> <code> my $bad_result; eval { $bad_result = $schema->resultset('track::Result')->create({ last_name => 'Testing', }); }; </code> <p>$@ contains:</p> <code> Create failed: Overhaul::DB::Schema::Result::track::Result: Validation failed. { 'first_name' => [ 'First name is required' ] } at /usr/local/share/perl5/DBIx/Class/Result/Validation.pm line 214 </code> <p>However, I still can't work out how to get to the error data (I'm guessing the module author is French, with limited English, so the docs are not that clear).</p> <p>I think I'm missing something on the paradigm shift from plain DBI to DBIx::Class. In DBI, say the error was at the data level (wrong type, say), it would throw you like this (from the DB rather than internal validation):</p> <code>$sth->execute || die "Query failed"</code> <p>So, to sum up, I think it's two questions. What am I missing here? Is this the best way to run DBIx::Class data validation, or should I be using a different approach?</p>