[Bast-commits] r7682 - in DBIx-Class/0.08/branches/sybase: .
lib/DBIx/Class t/prefetch
ribasushi at dev.catalyst.perl.org
ribasushi at dev.catalyst.perl.org
Fri Sep 18 10:30:03 GMT 2009
Author: ribasushi
Date: 2009-09-18 10:30:03 +0000 (Fri, 18 Sep 2009)
New Revision: 7682
Added:
DBIx-Class/0.08/branches/sybase/t/prefetch/join_type.t
Modified:
DBIx-Class/0.08/branches/sybase/
DBIx-Class/0.08/branches/sybase/Changes
DBIx-Class/0.08/branches/sybase/lib/DBIx/Class/ResultSource.pm
Log:
r7683 at Thesaurus (orig r7672): ribasushi | 2009-09-17 13:54:44 +0200
Fix left-join chaining
Property changes on: DBIx-Class/0.08/branches/sybase
___________________________________________________________________
Name: svk:merge
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bd8105ee-0ff8-0310-8827-fb3f25b6796d:/branches/DBIx-Class/inflate:1988
bd8105ee-0ff8-0310-8827-fb3f25b6796d:/branches/DBIx-Class/many_to_many:2025
bd8105ee-0ff8-0310-8827-fb3f25b6796d:/branches/DBIx-Class/re_refactor_bugfix:1944
bd8105ee-0ff8-0310-8827-fb3f25b6796d:/branches/DBIx-Class/reorganize_tests:1827
bd8105ee-0ff8-0310-8827-fb3f25b6796d:/branches/DBIx-Class/resultset-new-refactor:1766
bd8105ee-0ff8-0310-8827-fb3f25b6796d:/branches/DBIx-Class/resultset_2_electric_boogaloo:2175
bd8105ee-0ff8-0310-8827-fb3f25b6796d:/branches/DBIx-Class/resultset_cleanup:2102
bd8105ee-0ff8-0310-8827-fb3f25b6796d:/branches/DBIx-Class/sqlt_tests_refactor:2043
bd8105ee-0ff8-0310-8827-fb3f25b6796d:/trunk/DBIx-Class:3606
fe160bb6-dc1c-0410-9f2b-d64a711b54a5:/local/DBIC-trunk-0.08:10510
Modified: DBIx-Class/0.08/branches/sybase/Changes
===================================================================
--- DBIx-Class/0.08/branches/sybase/Changes 2009-09-18 10:28:09 UTC (rev 7681)
+++ DBIx-Class/0.08/branches/sybase/Changes 2009-09-18 10:30:03 UTC (rev 7682)
@@ -1,5 +1,16 @@
Revision history for DBIx::Class
+ - Complete Sybase RDBMS support including:
+ - Support for TEXT/IMAGE columns
+ - Support for the 'money' datatype
+ - Transaction savepoints support
+ - DateTime inflation support
+ - Support for bind variables when connecting to a newer Sybase with
+ OpenClient libraries
+ - Support for connections via FreeTDS with CASTs for bind variables
+ when needed
+ - Support for interpolated variables with proper quoting when
+ connecting to an older Sybase and/or via FreeTDS
- Remove the recommends from Makefile.PL, DBIx::Class is not
supposed to have optional dependencies. ever.
- Mangle the DBIx/Class.pm POD to be more clear about
@@ -13,17 +24,7 @@
tables that needed it
- More informative exception on failing _resolve_relationship
- Fix unreported rollback exceptions in TxnScopeGuard
- - Complete Sybase RDBMS support including:
- - Support for TEXT/IMAGE columns
- - Support for the 'money' datatype
- - Transaction savepoints support
- - DateTime inflation support
- - Support for bind variables when connecting to a newer Sybase with
- OpenClient libraries
- - Support for connections via FreeTDS with CASTs for bind variables
- when needed
- - Support for interpolated variables with proper quoting when
- connecting to an older Sybase and/or via FreeTDS
+ - Fix overly-eager left-join chain enforcing code
0.08111 2009-09-06 21:58:00 (UTC)
- The hashref to connection_info now accepts a 'dbh_maker'
Modified: DBIx-Class/0.08/branches/sybase/lib/DBIx/Class/ResultSource.pm
===================================================================
--- DBIx-Class/0.08/branches/sybase/lib/DBIx/Class/ResultSource.pm 2009-09-18 10:28:09 UTC (rev 7681)
+++ DBIx-Class/0.08/branches/sybase/lib/DBIx/Class/ResultSource.pm 2009-09-18 10:30:03 UTC (rev 7682)
@@ -1194,7 +1194,7 @@
# Returns the {from} structure used to express JOIN conditions
sub _resolve_join {
- my ($self, $join, $alias, $seen, $jpath, $force_left) = @_;
+ my ($self, $join, $alias, $seen, $jpath, $parent_force_left) = @_;
# we need a supplied one, because we do in-place modifications, no returns
$self->throw_exception ('You must supply a seen hashref as the 3rd argument to _resolve_join')
@@ -1205,47 +1205,56 @@
$jpath = [@$jpath];
- if (ref $join eq 'ARRAY') {
+ if (not defined $join) {
+ return ();
+ }
+ elsif (ref $join eq 'ARRAY') {
return
map {
- $self->_resolve_join($_, $alias, $seen, $jpath, $force_left);
+ $self->_resolve_join($_, $alias, $seen, $jpath, $parent_force_left);
} @$join;
- } elsif (ref $join eq 'HASH') {
- return
- map {
- my $as = ($seen->{$_} ? join ('_', $_, $seen->{$_} + 1) : $_); # the actual seen value will be incremented below
- local $force_left->{force} = $force_left->{force};
- (
- $self->_resolve_join($_, $alias, $seen, [@$jpath], $force_left),
- $self->related_source($_)->_resolve_join(
- $join->{$_}, $as, $seen, [@$jpath, $_], $force_left
- )
- );
- } keys %$join;
- } elsif (ref $join) {
- $self->throw_exception("No idea how to resolve join reftype ".ref $join);
- } else {
+ }
+ elsif (ref $join eq 'HASH') {
- return() unless defined $join;
+ my @ret;
+ for my $rel (keys %$join) {
+ my $rel_info = $self->relationship_info($rel)
+ or $self->throw_exception("No such relationship ${rel}");
+
+ my $force_left = $parent_force_left;
+ $force_left ||= lc($rel_info->{attrs}{join_type}||'') eq 'left';
+
+ # the actual seen value will be incremented by the recursion
+ my $as = ($seen->{$rel} ? join ('_', $rel, $seen->{$rel} + 1) : $rel);
+
+ push @ret, (
+ $self->_resolve_join($rel, $alias, $seen, [@$jpath], $force_left),
+ $self->related_source($rel)->_resolve_join(
+ $join->{$rel}, $as, $seen, [@$jpath, $rel], $force_left
+ )
+ );
+ }
+ return @ret;
+
+ }
+ elsif (ref $join) {
+ $self->throw_exception("No idea how to resolve join reftype ".ref $join);
+ }
+ else {
my $count = ++$seen->{$join};
my $as = ($count > 1 ? "${join}_${count}" : $join);
- my $rel_info = $self->relationship_info($join);
- $self->throw_exception("No such relationship ${join}") unless $rel_info;
- my $type;
- if ($force_left) {
- $type = 'left';
- }
- else {
- $type = $rel_info->{attrs}{join_type};
- $force_left = 1 if lc($type||'') eq 'left';
- }
+ my $rel_info = $self->relationship_info($join)
+ or $self->throw_exception("No such relationship ${join}");
my $rel_src = $self->related_source($join);
return [ { $as => $rel_src->from,
-source_handle => $rel_src->handle,
- -join_type => $type,
+ -join_type => $parent_force_left
+ ? 'left'
+ : $rel_info->{attrs}{join_type}
+ ,
-join_path => [@$jpath, $join],
-alias => $as,
-relation_chain_depth => $seen->{-relation_chain_depth} || 0,
@@ -1439,7 +1448,10 @@
my ($self, $pre, $alias, $alias_map, $order, $collapse, $pref_path) = @_;
$pref_path ||= [];
- if( ref $pre eq 'ARRAY' ) {
+ if (not defined $pre) {
+ return ();
+ }
+ elsif( ref $pre eq 'ARRAY' ) {
return
map { $self->_resolve_prefetch( $_, $alias, $alias_map, $order, $collapse, [ @$pref_path ] ) }
@$pre;
Added: DBIx-Class/0.08/branches/sybase/t/prefetch/join_type.t
===================================================================
--- DBIx-Class/0.08/branches/sybase/t/prefetch/join_type.t (rev 0)
+++ DBIx-Class/0.08/branches/sybase/t/prefetch/join_type.t 2009-09-18 10:30:03 UTC (rev 7682)
@@ -0,0 +1,47 @@
+use warnings;
+
+use Test::More;
+use Test::Exception;
+use lib qw(t/lib);
+use DBIC::SqlMakerTest;
+use DBICTest;
+
+my $schema = DBICTest->init_schema();
+
+
+# a regular belongs_to prefetch
+my $cds = $schema->resultset('CD')->search ({}, { prefetch => 'artist' } );
+
+my $nulls = {
+ hashref => {},
+ arrayref => [],
+ undef => undef,
+};
+
+# make sure null-prefetches do not screw with the final sql:
+for my $type (keys %$nulls) {
+# is_same_sql_bind (
+# $cds->search({}, { prefetch => { artist => $nulls->{$type} } })->as_query,
+# $cds->as_query,
+# "same sql with null $type prefetch"
+# );
+}
+
+# make sure left join is carried only starting from the first has_many
+is_same_sql_bind (
+ $cds->search({}, { prefetch => { artist => { cds => 'artist' } } })->as_query,
+ '(
+ SELECT me.cdid, me.artist, me.title, me.year, me.genreid, me.single_track,
+ artist.artistid, artist.name, artist.rank, artist.charfield,
+ cds.cdid, cds.artist, cds.title, cds.year, cds.genreid, cds.single_track,
+ artist_2.artistid, artist_2.name, artist_2.rank, artist_2.charfield
+ FROM cd me
+ JOIN artist artist ON artist.artistid = me.artist
+ LEFT JOIN cd cds ON cds.artist = artist.artistid
+ LEFT JOIN artist artist_2 ON artist_2.artistid = cds.artist
+ ORDER BY cds.artist, cds.year
+ )',
+ [],
+);
+
+done_testing;
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