X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=t%2Fprefetch%2Fincomplete.t;h=f8e89def398956ad33b3e656e0480dc40402a42f;hb=fcf32d04540e2c67625641b0bc004111a7d90252;hp=a93e693179c52288ebb70e725061a61010463b77;hpb=951b75814d2bd16a3f684145a7caf7777bc9abf4;p=dbsrgits%2FDBIx-Class.git diff --git a/t/prefetch/incomplete.t b/t/prefetch/incomplete.t index a93e693..f8e89de 100644 --- a/t/prefetch/incomplete.t +++ b/t/prefetch/incomplete.t @@ -1,17 +1,15 @@ use strict; -use warnings; +use warnings; use Test::More; use Test::Exception; use lib qw(t/lib); use DBICTest; -plan tests => 9; - my $schema = DBICTest->init_schema(); lives_ok(sub { - # while cds.* will be selected anyway (prefetch currently forces the result of _resolve_prefetch) + # while cds.* will be selected anyway (prefetch implies it) # only the requested me.name column will be fetched. # reference sql with select => [...] @@ -22,8 +20,8 @@ lives_ok(sub { { prefetch => [ qw/ cds / ], order_by => [ { -desc => 'me.name' }, 'cds.title' ], - select => [qw/ me.name cds.title / ], - } + select => [qw/ me.name cds.title / ], + }, ); is ($rs->count, 2, 'Correct number of collapsed artists'); @@ -33,6 +31,56 @@ lives_ok(sub { is ($we_are_goth->cds->first->title, 'Come Be Depressed With Us', 'Correct cd for artist'); }, 'explicit prefetch on a keyless object works'); +lives_ok ( sub { + + my $rs = $schema->resultset('CD')->search( + {}, + { + order_by => [ { -desc => 'me.year' } ], + } + ); + my $years = [qw/ 2001 2001 1999 1998 1997/]; + + is_deeply ( + [ $rs->search->get_column('me.year')->all ], + $years, + 'Expected years (at least one duplicate)', + ); + + my @cds_and_tracks; + for my $cd ($rs->all) { + my $data = { year => $cd->year, cdid => $cd->cdid }; + for my $tr ($cd->tracks->all) { + push @{$data->{tracks}}, { $tr->get_columns }; + } + push @cds_and_tracks, $data; + } + + my $pref_rs = $rs->search ({}, { columns => [qw/year cdid/], prefetch => 'tracks' }); + + my @pref_cds_and_tracks; + for my $cd ($pref_rs->all) { + my $data = { $cd->get_columns }; + for my $tr ($cd->tracks->all) { + push @{$data->{tracks}}, { $tr->get_columns }; + } + push @pref_cds_and_tracks, $data; + } + + is_deeply ( + \@pref_cds_and_tracks, + \@cds_and_tracks, + 'Correct collapsing on non-unique primary object' + ); + + is_deeply ( + [ $pref_rs->search ({}, { result_class => 'DBIx::Class::ResultClass::HashRefInflator' })->all ], + \@cds_and_tracks, + 'Correct HRI collapsing on non-unique primary object' + ); + +}, 'weird collapse lives'); + lives_ok(sub { # test implicit prefetch as well @@ -51,3 +99,29 @@ lives_ok(sub { is ($cd->artist->name, 'Random Boy Band', 'Artist object has correct name'); }, 'implicit keyless prefetch works'); + +# sane error +throws_ok( + sub { + $schema->resultset('Track')->search({}, { join => { cd => 'artist' }, '+columns' => 'artist.name' } )->next; + }, + qr|\QCan't inflate prefetch into non-existent relationship 'artist' from 'Track', check the inflation specification (columns/as) ending in '...artist.name'|, + 'Sensible error message on mis-specified "as"', +); + +# check complex limiting prefetch without the join-able columns +{ + my $pref_rs = $schema->resultset('Owners')->search({}, { + rows => 3, + offset => 1, + columns => 'name', # only the owner name, still prefetch all the books + prefetch => 'books', + }); + + lives_ok { + is ($pref_rs->all, 1, 'Expected count of objects on limtied prefetch') + } "Complex limited prefetch works with non-selected join condition"; +} + + +done_testing;