From: Matt S Trout Date: Thu, 5 Jan 2006 15:39:54 +0000 (+0000) Subject: FAQ and Troubleshooting additions from Nigel Metheringham X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=commitdiff_plain;h=159a8515db1d0f3c0cc89af5ae811a67985beef5;p=dbsrgits%2FDBIx-Class-Historic.git FAQ and Troubleshooting additions from Nigel Metheringham --- diff --git a/lib/DBIx/Class/Manual/FAQ.pod b/lib/DBIx/Class/Manual/FAQ.pod index 5da03cc..67cdaef 100644 --- a/lib/DBIx/Class/Manual/FAQ.pod +++ b/lib/DBIx/Class/Manual/FAQ.pod @@ -2,19 +2,59 @@ DBIx::Class::Manual::FAQ - Frequently Asked Questions -=head1 QUESTIONS +=head1 General =head2 What is the point of this module? Is it a fork of Class::DBI? +This is an alternative to Class::DBI, intended to provide greater +functionality and simplicity. + +It is inspired by the Class::DBI framework, and meant to support +compability with it, while restructuring the internals and making it +possible to support some new features like self-joins, distinct, group +bys and more. + =head2 Who's the intended audience for this module? =head2 What databases does it support? +At least MSSQL, MySQL, Oracle, PostgreSQL and SQLite. + =head2 What's the current status of this module? +This project is still at an early stage, so the maintainers don't make +any absolute promise that full backwards-compatibility will be +supported; however, if we can without compromising the improvements +we're trying to make, we will, and any non-compatible changes will +merit a full justification on the mailing list and a CPAN developer +release for people to test against. + =head2 What's planned in the future? =head2 Where can I go for support? + Mailing list: http://lists.rawmode.org/mailman/listinfo/dbix-class/ + + SVN: http://dev.catalyst.perl.org/repos/bast/trunk/DBIx-Class/ + + Wiki: http://dbix-class.shadowcatsystems.co.uk/ + + IRC: irc.perl.org#dbix-class + +=head1 PostgresQL Specific Problems + +=head2 Can't get last insert id - inserts with serial primary keys fail + +Older DBI and DBD::Pg versions fail to correctly handle +C correctly, causing code that uses auto incrementing +primary key columns to fail with a message such as:- + + Can't get last insert id at /.../DBIx/Class/Row.pm line 95 + +In particular the RHEL 4 and FC3 Linux distributions both ship with +combinations of DBI and DBD::Pg modules that do not work correctly. + +DBI version 1.50 and DBD::Pg 1.43 are known to work. + =cut diff --git a/lib/DBIx/Class/Manual/Troubleshooting.pod b/lib/DBIx/Class/Manual/Troubleshooting.pod index 5dd88a7..41f55ff 100644 --- a/lib/DBIx/Class/Manual/Troubleshooting.pod +++ b/lib/DBIx/Class/Manual/Troubleshooting.pod @@ -4,5 +4,17 @@ DBIx::Class::Manual::Troubleshooting - Got a problem? Shoot it. =head2 "Can't locate storage blabla" +=head2 Tracing SQL + +The C environment variable controls +SQL tracing, so to see what is happening try + + export DBIX_CLASS_STORAGE_DBI_DEBUG=1 + +Alternatively use the Cdebug> class method:- + + $class->storage->debug(1); + + =cut