From: Rafael Kitover <rkitover@cpan.org>
Date: Sun, 19 Jul 2009 21:57:11 +0000 (+0000)
Subject: mangling _select_args turned out to be unnecessary
X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=commitdiff_plain;h=b5453fbb2a8b2a70d852a8673dcc98f7d51f8bf7;p=dbsrgits%2FDBIx-Class-Historic.git

mangling _select_args turned out to be unnecessary
---

diff --git a/lib/DBIx/Class/ResultSet.pm b/lib/DBIx/Class/ResultSet.pm
index ed1cdc0..724b33f 100644
--- a/lib/DBIx/Class/ResultSet.pm
+++ b/lib/DBIx/Class/ResultSet.pm
@@ -2780,7 +2780,10 @@ sub _resolved_attrs {
                       : "${alias}.$_"
                   )
             }
-      } ( ref($attrs->{columns}) eq 'ARRAY' ) ? @{ delete $attrs->{columns}} : (delete $attrs->{columns} || $source->columns );
+      } ( ref($attrs->{columns}) eq 'ARRAY' ) ?
+          @{ delete $attrs->{columns}} :
+            (delete $attrs->{columns} ||
+              $source->storage->order_columns_for_select($source) );
   }
   # add the additional columns on
   foreach ( 'include_columns', '+columns' ) {
diff --git a/lib/DBIx/Class/Storage/DBI.pm b/lib/DBIx/Class/Storage/DBI.pm
index 1d1e57b..6eefbfa 100644
--- a/lib/DBIx/Class/Storage/DBI.pm
+++ b/lib/DBIx/Class/Storage/DBI.pm
@@ -2277,6 +2277,23 @@ sub lag_behind_master {
     return;
 }
 
+=head2 order_columns_for_select
+
+Returns an ordered list of column names for use with a C<SELECT> when the column
+list is not explicitly specified.
+By default returns the result of L<DBIx::Class::ResultSource/columns>.
+
+This may be overridden in a specific storage when there are requirements such
+as moving C<BLOB> columns to the end of the list.
+
+=cut
+
+sub order_columns_for_select {
+  my ($self, $source) = @_;
+
+  return $source->columns;
+}
+
 sub DESTROY {
   my $self = shift;
   return if !$self->_dbh;
diff --git a/lib/DBIx/Class/Storage/DBI/Sybase.pm b/lib/DBIx/Class/Storage/DBI/Sybase.pm
index 2f27688..677b9f6 100644
--- a/lib/DBIx/Class/Storage/DBI/Sybase.pm
+++ b/lib/DBIx/Class/Storage/DBI/Sybase.pm
@@ -140,49 +140,26 @@ sub _is_lob_type {
   $type && $type =~ /(?:text|image|lob|bytea|binary)/i;
 }
 
-# Move TEXT/IMAGE column to the end of select list, and make sure there is only
-# one.
+## This will be useful if we ever implement BLOB filehandle inflation and will
+## need to use the API, but for now it isn't.
 #
-# work in progress
-#
-# * column indexes need to be fixed if @$select is reordered, not sure if that's
-# possible
-# * needs to handle hashrefs
-# * for some reason tests pass without this, even though documentation says
-# blobs should be at the end of the select list
-# * needs to at least croak for multiple blobs
-#
-#sub _select_args {
-#  my ($self, $ident, $select) = splice @_, 0, 3;
-#
-#  my ($alias2src, $rs_alias) = $self->_resolve_ident_sources($ident);
-#  my $name_sep = $self->_sql_maker_opts->{name_sep} || '.';
+#sub order_columns_for_select {
+#  my ($self, $source) = @_;
 #
 #  my (@non_blobs, @blobs);
 #
-#  for my $col (@$select) {
-#    if (ref $col) {
-## XXX should handle hashrefs too
-#      push @non_blobs, $col;
-#      next;
-#    }
-#
-#    $col =~ s/^([^\Q${name_sep}\E]*)\Q${name_sep}\E//;
-#    my $alias    = $1 || $rs_alias;
-#    my $rsrc     = $alias2src->{$alias};
-#    my $datatype = $rsrc && $rsrc->column_info($col)->{data_type};
-# 
-#    if ($self->_is_lob_type($datatype)) {
+#  for my $col ($source->columns) {
+#    if ($self->_is_lob_type($source->column_info($col)->{data_type})) {
 #      push @blobs, $col;
 #    } else {
 #      push @non_blobs, $col;
 #    }
 #  }
 #
-#  croak "cannot select more than a one TEXT/IMAGE column"
+#  croak "cannot select more than a one TEXT/IMAGE column at a time"
 #    if @blobs > 1;
 #
-#  $self->next::method($ident, [@non_blobs, @blobs], @_);
+#  return (@non_blobs, @blobs);
 #}
 
 # override to handle TEXT/IMAGE
diff --git a/lib/DBIx/Class/Storage/DBI/Sybase/Microsoft_SQL_Server.pm b/lib/DBIx/Class/Storage/DBI/Sybase/Microsoft_SQL_Server.pm
index 9a9410f..b0462f9 100644
--- a/lib/DBIx/Class/Storage/DBI/Sybase/Microsoft_SQL_Server.pm
+++ b/lib/DBIx/Class/Storage/DBI/Sybase/Microsoft_SQL_Server.pm
@@ -13,6 +13,16 @@ use mro 'c3';
 sub _rebless {
   my $self = shift;
   $self->disable_sth_caching(1);
+
+# LongReadLen doesn't work with MSSQL through DBD::Sybase, and the default is
+# huge on some versions of SQL server and can cause memory problems, so we
+# fix it up here.
+  my $dbh = $self->_dbh;
+
+  my $text_size = eval { $self->_dbi_connect_info->[-1]->{LongReadLen} } ||
+    32768; # the DBD::Sybase default
+
+  $dbh->do("set textsize $text_size");
 }
 
 1;
diff --git a/t/746sybase.t b/t/746sybase.t
index 2d0132a..62a9e52 100644
--- a/t/746sybase.t
+++ b/t/746sybase.t
@@ -9,7 +9,7 @@ use DBICTest;
 
 my ($dsn, $user, $pass) = @ENV{map { "DBICTEST_SYBASE_${_}" } qw/DSN USER PASS/};
 
-my $TESTS = 31 + 2;
+my $TESTS = 29 + 2;
 
 if (not ($dsn && $user)) {
   plan skip_all =>
@@ -130,7 +130,7 @@ SQL
 
 # mostly stolen from the blob stuff Nniuq wrote for t/73oracle.t
   SKIP: {
-    skip 'Need at least version 1.09 of DBD::Sybase to test TEXT/IMAGE', 14
+    skip 'Need at least version 1.09 of DBD::Sybase to test TEXT/IMAGE', 12
         unless $DBD::Sybase::VERSION >= 1.09;
 
     my $dbh = $schema->storage->dbh;
@@ -216,31 +216,6 @@ SQL
     };
     diag $@ if $@;
     ok($got eq $binstr{large}, "verified inserted large blob");
-
-    # Test select args ordering on a ->find for a table with one blob
-    {
-      local $SIG{__WARN__} = sub {};
-      eval { $dbh->do('DROP TABLE single_blob_test') };
-
-      $dbh->do(qq[
-        CREATE TABLE single_blob_test 
-        (
-          id    INT   IDENTITY PRIMARY KEY,
-          blob  IMAGE NULL,
-          foo VARCHAR(256) NULL
-        )
-      ],{ RaiseError => 1, PrintError => 0 });
-    }
-    $rs = $schema->resultset('SingleBlob');
-    $created = eval { $rs->create({
-      blob => $binstr{large}, foo => 'dummy'
-    }) };
-    ok(!$@, "inserted single large blob without dying");
-    diag $@ if $@;
-
-    $got = eval { $rs->find($created->id)->blob };
-    diag $@ if $@;
-    ok($got eq $binstr{large}, "verified inserted large blob through ->find");
   }
 }
 
@@ -249,6 +224,5 @@ END {
   if (my $dbh = eval { $schema->storage->_dbh }) {
     $dbh->do('DROP TABLE artist');
     eval { $dbh->do('DROP TABLE bindtype_test')    };
-    eval { $dbh->do('DROP TABLE single_blob_test') };
   }
 }