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[dbsrgits/DBIx-Class.git] / lib / DBIx / Class / Manual / Troubleshooting.pod

diff --git a/lib/DBIx/Class/Manual/Troubleshooting.pod b/lib/DBIx/Class/Manual/Troubleshooting.pod
index ebfb71b..6087ae3 100644 (file)
--- a/lib/DBIx/Class/Manual/Troubleshooting.pod
+++ b/lib/DBIx/Class/Manual/Troubleshooting.pod
@@ -1,10 +1,51 @@
-=head1 Troubleshooting
+=head1 NAME
 
-=over 4
+DBIx::Class::Manual::Troubleshooting - Got a problem? Shoot it.
 
-=item 
+=head2  "Can't locate storage blabla"
 
-=back
+You're trying to make a query on a non-connected schema. Make sure you got
+the current resultset from $schema->resultset('Artist') on a schema object
+you got back from connect().
+
+=head2 Tracing SQL
+
+The C<DBIC_TRACE> environment variable controls
+SQL tracing, so to see what is happening try
+
+  export DBIC_TRACE=1
+
+Alternatively use the C<< storage->debug >> class method:-
+
+  $class->storage->debug(1);
+
+To send the output somewhere else set debugfh:-
+
+  $class->storage->debugfh(IO::File->new('/tmp/trace.out', 'w');
+
+Alternatively you can do this with the environment variable too:-
+
+  export DBIC_TRACE="1=/tmp/trace.out"
+
+=head2 Can't locate method result_source_instance
+
+For some reason the table class in question didn't load fully, so the
+ResultSource object for it hasn't been created. Debug this class in
+isolation, then try loading the full schema again.
+
+=head2 Can't get last insert ID under Postgres with serial primary keys
+
+Older L<DBI> and L<DBD::Pg> versions do not handle C<last_insert_id>
+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 L<DBI> and L<DBD::Pg> modules that do not work
+correctly.
+
+L<DBI> version 1.50 and L<DBD::Pg> 1.43 are known to work.
 
 =cut