X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=lib%2FDBIx%2FClass%2FStorage%2FDBI.pm;h=1d0b5f00cb2e7cc184758a85cbbc7cb0c923102d;hb=6aaa8ea246081079ea355c5f4c997eacf3bc1424;hp=797074baeaf1141794e4ad7578364e70e1bf0fee;hpb=f1f56aad66c46b1f6bb7a4424cdfd95529b82003;p=dbsrgits%2FDBIx-Class-Historic.git

diff --git a/lib/DBIx/Class/Storage/DBI.pm b/lib/DBIx/Class/Storage/DBI.pm
index 797074b..1d0b5f0 100644
--- a/lib/DBIx/Class/Storage/DBI.pm
+++ b/lib/DBIx/Class/Storage/DBI.pm
@@ -21,6 +21,8 @@ sub select {
   my ($self, $table, $fields, $where, $order, @rest) = @_;
   $table = $self->_quote($table) unless ref($table);
   @rest = (-1) unless defined $rest[0];
+  die "LIMIT 0 Does Not Compute" if $rest[0] == 0;
+    # and anyway, SQL::Abstract::Limit will cause a barf if we don't first
   local $self->{having_bind} = [];
   my ($sql, @ret) = $self->SUPER::select(
     $table, $self->_recurse_fields($fields), $where, $order, @rest
@@ -624,6 +626,8 @@ sub _select {
       $self->sql_maker->_default_limit_syntax eq "GenericSubQ") {
         $attrs->{software_limit} = 1;
   } else {
+    $self->throw_exception("rows attribute must be positive if present")
+      if (defined($attrs->{rows}) && !($attrs->{rows} > 0));
     push @args, $attrs->{rows}, $attrs->{offset};
   }
   return $self->_execute(@args);
@@ -838,6 +842,11 @@ is produced (as when the L<debug> method is set).
 If the value is of the form C<1=/path/name> then the trace output is
 written to the file C</path/name>.
 
+This environment variable is checked when the storage object is first
+created (when you call connect on your schema).  So, run-time changes 
+to this environment variable will not take effect unless you also 
+re-connect on your schema.
+
 =head1 AUTHORS
 
 Matt S. Trout <mst@shadowcatsystems.co.uk>