From: Peter Rabbitson Date: Sun, 20 Apr 2008 18:48:28 +0000 (+0000) Subject: TODO tests for multiple same level has_many's X-Git-Tag: v0.08240~481 X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=commitdiff_plain;h=b2df8400ca62494d62470ee9dcab84cd70cea3fc;p=dbsrgits%2FDBIx-Class.git TODO tests for multiple same level has_many's Currenty both exception checks pass - should fail until the code is in place --- diff --git a/t/77prefetch.t b/t/77prefetch.t index 2276964..b4ef5b9 100644 --- a/t/77prefetch.t +++ b/t/77prefetch.t @@ -16,7 +16,7 @@ BEGIN { eval "use DBD::SQLite"; plan $@ ? ( skip_all => 'needs DBD::SQLite for testing' ) - : ( tests => 48 ); + : ( tests => 56 ); } # figure out if we've got a version of sqlite that is older than 3.2.6, in @@ -343,3 +343,69 @@ is($art_rs_pr->search_related('cds')->search_related('tracks')->first->title, ); is($queries, 0, 'chained search_related after has_many->has_many prefetch ran no queries'); + + +TODO: { + local $TODO = 'Prefetch of multiple has_many rels at the same level (currently must die to protect the clueless git)'; + use DBIx::Class::ResultClass::HashRefInflator; + + #( 1 -> M + M ) + my $cd_rs = $schema->resultset('CD')->search ({ 'me.title' => 'Forkful of bees' }); + my $pr_cd_rs = $cd_rs->search ({}, { + prefetch => [qw/tracks tags/], + }); + + my $tracks_rs = $cd_rs->first->tracks; + my $tracks_count = $tracks_rs->count; + + my ($pr_tracks_rs, $pr_tracks_count); + + $queries = 0; + $schema->storage->debugcb(sub { $queries++ }); + $schema->storage->debug(1); + eval { + $pr_tracks_rs = $pr_cd_rs->first->tracks; + $pr_tracks_count = $pr_tracks_rs->count; + }; + ok(! $@, 'exception on attempt to prefetch several same level has_many\'s (1 -> M + M)'); + is($queries, 1, 'prefetch one->(has_many,has_many) ran exactly 1 query'); + + is($pr_tracks_count, $tracks_count, 'equal count of prefetched relations over several same level has_many\'s (1 -> M + M)'); + + for ($pr_tracks_rs, $tracks_rs) { + $_->result_class ('DBIx::Class::ResultClass::HashRefInflator'); + } + + is_deeply ([$pr_tracks_rs->all], [$tracks_rs->all], 'same structure returned with and without prefetch over several same level has_many\'s (1 -> M + M)'); + + #( M -> 1 -> M + M ) + my $note_rs = $schema->resultset('LinerNotes')->search ({ notes => 'Buy Whiskey!' }); + my $pr_note_rs = $note_rs->search ({}, { + prefetch => { + cd => [qw/tags tracks/] + }, + }); + + my $tags_rs = $note_rs->first->cd->tags; + my $tags_count = $tags_rs->count; + + my ($pr_tags_rs, $pr_tags_count); + + $queries = 0; + $schema->storage->debugcb(sub { $queries++ }); + $schema->storage->debug(1); + eval { + $pr_tags_rs = $pr_note_rs->first->cd->tags; + $pr_tags_count = $pr_tags_rs->count; + }; + ok(! $@, 'exception on attempt to prefetch several same level has_many\'s (M -> 1 -> M + M)'); + is($queries, 1, 'prefetch one->(has_many,has_many) ran exactly 1 query'); + + is($pr_tags_count, $tags_count, 'equal count of prefetched relations over several same level has_many\'s (M -> 1 -> M + M)'); + + for ($pr_tags_rs, $tags_rs) { + $_->result_class ('DBIx::Class::ResultClass::HashRefInflator'); + } + + is_deeply ([$pr_tags_rs->all], [$tags_rs->all], 'same structure returned with and without prefetch over several same level has_many\'s (M -> 1 -> M + M)'); +};