1use strict;
2use warnings;
3
4use Test::More;
5use lib qw(t/lib);
6use DBICTest;
7my $schema = DBICTest->init_schema();
8
9# Under some versions of SQLite if the $rs is left hanging around it will lock
10# So we create a scope here cos I'm lazy
11{
12    my $rs = $schema->resultset('CD')->search ({}, { order_by => 'cdid' });
13
14    # get the defined columns
15    my @dbic_cols = sort $rs->result_source->columns;
16
17    # use the hashref inflator class as result class
18    $rs->result_class('DBIx::Class::ResultClass::HashRefInflator');
19
20    # fetch first record
21    my $datahashref1 = $rs->first;
22
23    my @hashref_cols = sort keys %$datahashref1;
24
25    is_deeply( \@dbic_cols, \@hashref_cols, 'returned columns' );
26
27    my $cd1 = $rs->find ({cdid => 1});
28    is_deeply ( $cd1, $datahashref1, 'first/find return the same thing');
29
30    my $cd2 = $rs->search({ cdid => 1 })->single;
31    is_deeply ( $cd2, $datahashref1, 'first/search+single return the same thing');
32}
33
34sub check_cols_of {
35    my ($dbic_obj, $datahashref) = @_;
36
37    foreach my $col (keys %$datahashref) {
38        # plain column
39        if (not ref ($datahashref->{$col}) ) {
40            is ($datahashref->{$col}, $dbic_obj->get_column($col), 'same value');
41        }
42        # related table entry (belongs_to)
43        elsif (ref ($datahashref->{$col}) eq 'HASH') {
44            check_cols_of($dbic_obj->$col, $datahashref->{$col});
45        }
46        # multiple related entries (has_many)
47        elsif (ref ($datahashref->{$col}) eq 'ARRAY') {
48            my @dbic_reltable = $dbic_obj->$col;
49            my @hashref_reltable = @{$datahashref->{$col}};
50
51            is (scalar @dbic_reltable, scalar @hashref_reltable, 'number of related entries');
52
53            # for my $index (0..scalar @hashref_reltable) {
54            for my $index (0..scalar @dbic_reltable) {
55                my $dbic_reltable_obj       = $dbic_reltable[$index];
56                my $hashref_reltable_entry  = $hashref_reltable[$index];
57
58                check_cols_of($dbic_reltable_obj, $hashref_reltable_entry);
59            }
60        }
61    }
62}
63
64# create a cd without tracks for testing empty has_many relationship
65$schema->resultset('CD')->create({ title => 'Silence is golden', artist => 3, year => 2006 });
66
67# order_by to ensure both resultsets have the rows in the same order
68# also check result_class-as-an-attribute syntax
69my $rs_dbic = $schema->resultset('CD')->search(undef,
70    {
71        prefetch    => [ qw/ artist tracks / ],
72        order_by    => [ 'me.cdid', 'tracks.position' ],
73    }
74);
75my $rs_hashrefinf = $schema->resultset('CD')->search(undef,
76    {
77        prefetch    => [ qw/ artist tracks / ],
78        order_by    => [ 'me.cdid', 'tracks.position' ],
79        result_class => 'DBIx::Class::ResultClass::HashRefInflator',
80    }
81);
82
83my @dbic        = $rs_dbic->all;
84my @hashrefinf  = $rs_hashrefinf->all;
85
86for my $index (0 .. $#hashrefinf) {
87    my $dbic_obj    = $dbic[$index];
88    my $datahashref = $hashrefinf[$index];
89
90    check_cols_of($dbic_obj, $datahashref);
91}
92
93# sometimes for ultra-mega-speed you want to fetch columns in esoteric ways
94# check the inflator over a non-fetching join 
95$rs_dbic = $schema->resultset ('Artist')->search ({ 'me.artistid' => 1}, {
96    prefetch => { cds => 'tracks' },
97    order_by => [qw/cds.cdid tracks.trackid/],
98});
99
100$rs_hashrefinf = $schema->resultset ('Artist')->search ({ 'me.artistid' => 1}, {
101    join     => { cds => 'tracks' },
102    select   => [qw/name   tracks.title      tracks.cd       /],
103    as       => [qw/name   cds.tracks.title  cds.tracks.cd   /],
104    order_by => [qw/cds.cdid tracks.trackid/],
105    result_class => 'DBIx::Class::ResultClass::HashRefInflator',
106});
107
108@dbic = map { $_->tracks->all } ($rs_dbic->first->cds->all);
109@hashrefinf  = $rs_hashrefinf->all;
110
111is (scalar @dbic, scalar @hashrefinf, 'Equal number of tracks fetched');
112
113for my $index (0 .. $#hashrefinf) {
114    my $track       = $dbic[$index];
115    my $datahashref = $hashrefinf[$index];
116
117    is ($track->cd->artist->name, $datahashref->{name}, 'Brought back correct artist');
118    for my $col (keys %{$datahashref->{cds}{tracks}}) {
119        is ($track->get_column ($col), $datahashref->{cds}{tracks}{$col}, "Correct track '$col'");
120    }
121}
122
123# check for same query as above but using extended columns syntax
124$rs_hashrefinf = $schema->resultset ('Artist')->search ({ 'me.artistid' => 1}, {
125    join     => { cds => 'tracks' },
126    columns  => {name => 'name', 'cds.tracks.title' => 'tracks.title', 'cds.tracks.cd' => 'tracks.cd'},
127    order_by => [qw/cds.cdid tracks.trackid/],
128});
129$rs_hashrefinf->result_class('DBIx::Class::ResultClass::HashRefInflator');
130is_deeply [$rs_hashrefinf->all], \@hashrefinf, 'Check query using extended columns syntax';
131
132# check nested prefetching of has_many relationships which return nothing
133my $artist = $schema->resultset ('Artist')->create ({ name => 'unsuccessful artist without CDs'});
134$artist->discard_changes;
135my $rs_artists = $schema->resultset ('Artist')->search ({ 'me.artistid' => $artist->id}, {
136    prefetch => { cds => 'tracks' }, result_class => 'DBIx::Class::ResultClass::HashRefInflator',
137});
138is_deeply(
139  [$rs_artists->all],
140  [{ $artist->get_columns, cds => [] }],
141  'nested has_many prefetch without entries'
142);
143
144done_testing;
145
146