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1 | use strict; |
2 | use warnings; |
3 | |
4 | use Test::More; |
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5 | use Test::Exception; |
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6 | use lib qw(t/lib); |
7 | use DBICTest; |
8 | use Data::Dumper; |
9 | |
10 | my $schema = DBICTest->init_schema(); |
11 | |
12 | my $orig_debug = $schema->storage->debug; |
13 | |
14 | use IO::File; |
15 | |
16 | BEGIN { |
17 | eval "use DBD::SQLite"; |
18 | plan $@ |
19 | ? ( skip_all => 'needs DBD::SQLite for testing' ) |
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20 | : ( tests => 45 ); |
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21 | } |
22 | |
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23 | my $queries = 0; |
24 | $schema->storage->debugcb(sub { $queries++; }); |
25 | $schema->storage->debug(1); |
26 | |
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27 | my $search = { 'artist.name' => 'Caterwauler McCrae' }; |
28 | my $attr = { prefetch => [ qw/artist liner_notes/ ], |
29 | order_by => 'me.cdid' }; |
30 | my $search_str = Dumper($search); |
31 | my $attr_str = Dumper($attr); |
32 | |
33 | my $rs = $schema->resultset("CD")->search($search, $attr); |
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34 | my @cd = $rs->all; |
35 | |
36 | is($cd[0]->title, 'Spoonful of bees', 'First record returned ok'); |
37 | |
38 | ok(!defined $cd[0]->liner_notes, 'No prefetch for NULL LEFT join'); |
39 | |
40 | is($cd[1]->{_relationship_data}{liner_notes}->notes, 'Buy Whiskey!', 'Prefetch for present LEFT JOIN'); |
41 | |
42 | is(ref $cd[1]->liner_notes, 'DBICTest::LinerNotes', 'Prefetch returns correct class'); |
43 | |
44 | is($cd[2]->{_inflated_column}{artist}->name, 'Caterwauler McCrae', 'Prefetch on parent object ok'); |
45 | |
46 | is($queries, 1, 'prefetch ran only 1 select statement'); |
47 | |
48 | $schema->storage->debug($orig_debug); |
49 | $schema->storage->debugobj->callback(undef); |
50 | |
51 | # test for partial prefetch via columns attr |
52 | my $cd = $schema->resultset('CD')->find(1, |
53 | { |
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54 | columns => [qw/title artist artist.name/], |
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55 | join => { 'artist' => {} } |
56 | } |
57 | ); |
58 | ok(eval { $cd->artist->name eq 'Caterwauler McCrae' }, 'single related column prefetched'); |
59 | |
60 | # start test for nested prefetch SELECT count |
61 | $queries = 0; |
62 | $schema->storage->debugcb(sub { $queries++ }); |
63 | $schema->storage->debug(1); |
64 | |
65 | $rs = $schema->resultset('Tag')->search( |
66 | {}, |
67 | { |
68 | prefetch => { cd => 'artist' } |
69 | } |
70 | ); |
71 | |
72 | my $tag = $rs->first; |
73 | |
74 | is( $tag->cd->title, 'Spoonful of bees', 'step 1 ok for nested prefetch' ); |
75 | |
76 | is( $tag->cd->artist->name, 'Caterwauler McCrae', 'step 2 ok for nested prefetch'); |
77 | |
78 | # count the SELECTs |
79 | #$selects++ if /SELECT(?!.*WHERE 1=0.*)/; |
80 | is($queries, 1, 'nested prefetch ran exactly 1 select statement (excluding column_info)'); |
81 | |
82 | $queries = 0; |
83 | |
84 | is($tag->search_related('cd')->search_related('artist')->first->name, |
85 | 'Caterwauler McCrae', |
86 | 'chained belongs_to->belongs_to search_related ok'); |
87 | |
88 | is($queries, 0, 'chained search_related after belontgs_to->belongs_to prefetch ran no queries'); |
89 | |
90 | $queries = 0; |
91 | |
92 | $cd = $schema->resultset('CD')->find(1, { prefetch => 'artist' }); |
93 | |
94 | is($cd->{_inflated_column}{artist}->name, 'Caterwauler McCrae', 'artist prefetched correctly on find'); |
95 | |
96 | is($queries, 1, 'find with prefetch ran exactly 1 select statement (excluding column_info)'); |
97 | |
98 | $queries = 0; |
99 | |
100 | $schema->storage->debugcb(sub { $queries++; }); |
101 | |
102 | $cd = $schema->resultset('CD')->find(1, { prefetch => { cd_to_producer => 'producer' } }); |
103 | |
104 | is($cd->producers->first->name, 'Matt S Trout', 'many_to_many accessor ok'); |
105 | |
106 | is($queries, 1, 'many_to_many accessor with nested prefetch ran exactly 1 query'); |
107 | |
108 | $queries = 0; |
109 | |
110 | my $producers = $cd->search_related('cd_to_producer')->search_related('producer'); |
111 | |
112 | is($producers->first->name, 'Matt S Trout', 'chained many_to_many search_related ok'); |
113 | |
114 | is($queries, 0, 'chained search_related after many_to_many prefetch ran no queries'); |
115 | |
116 | $schema->storage->debug($orig_debug); |
117 | $schema->storage->debugobj->callback(undef); |
118 | |
119 | $rs = $schema->resultset('Tag')->search( |
120 | {}, |
121 | { |
122 | join => { cd => 'artist' }, |
123 | prefetch => { cd => 'artist' } |
124 | } |
125 | ); |
126 | |
127 | cmp_ok( $rs->count, '>=', 0, 'nested prefetch does not duplicate joins' ); |
128 | |
129 | my ($artist) = $schema->resultset("Artist")->search({ 'cds.year' => 2001 }, |
130 | { order_by => 'artistid DESC', join => 'cds' }); |
131 | |
132 | is($artist->name, 'Random Boy Band', "Join search by object ok"); |
133 | |
134 | my @cds = $schema->resultset("CD")->search({ 'liner_notes.notes' => 'Buy Merch!' }, |
135 | { join => 'liner_notes' }); |
136 | |
137 | cmp_ok(scalar @cds, '==', 1, "Single CD retrieved via might_have"); |
138 | |
139 | is($cds[0]->title, "Generic Manufactured Singles", "Correct CD retrieved"); |
140 | |
141 | my @artists = $schema->resultset("Artist")->search({ 'tags.tag' => 'Shiny' }, |
142 | { join => { 'cds' => 'tags' } }); |
143 | |
144 | cmp_ok( @artists, '==', 2, "two-join search ok" ); |
145 | |
146 | $rs = $schema->resultset("CD")->search( |
147 | {}, |
148 | { group_by => [qw/ title me.cdid /] } |
149 | ); |
150 | |
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151 | cmp_ok( $rs->count, '==', 5, "count() ok after group_by on main pk" ); |
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152 | |
153 | cmp_ok( scalar $rs->all, '==', 5, "all() returns same count as count() after group_by on main pk" ); |
154 | |
155 | $rs = $schema->resultset("CD")->search( |
156 | {}, |
157 | { join => [qw/ artist /], group_by => [qw/ artist.name /] } |
158 | ); |
159 | |
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160 | cmp_ok( $rs->count, '==', 3, "count() ok after group_by on related column" ); |
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161 | |
162 | $rs = $schema->resultset("Artist")->search( |
163 | {}, |
164 | { join => [qw/ cds /], group_by => [qw/ me.name /], having =>{ 'MAX(cds.cdid)'=> \'< 5' } } |
165 | ); |
166 | |
167 | cmp_ok( $rs->all, '==', 2, "results ok after group_by on related column with a having" ); |
168 | |
169 | $rs = $rs->search( undef, { having =>{ 'count(*)'=> \'> 2' }}); |
170 | |
171 | cmp_ok( $rs->all, '==', 1, "count() ok after group_by on related column with a having" ); |
172 | |
173 | $rs = $schema->resultset("Artist")->search( |
174 | { 'cds.title' => 'Spoonful of bees', |
175 | 'cds_2.title' => 'Forkful of bees' }, |
176 | { join => [ 'cds', 'cds' ] }); |
177 | |
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178 | cmp_ok($rs->count, '==', 1, "single artist returned from multi-join"); |
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179 | |
180 | is($rs->next->name, 'Caterwauler McCrae', "Correct artist returned"); |
181 | |
182 | $cd = $schema->resultset('Artist')->first->create_related('cds', |
183 | { |
184 | title => 'Unproduced Single', |
185 | year => 2007 |
186 | }); |
187 | |
188 | my $left_join = $schema->resultset('CD')->search( |
189 | { 'me.cdid' => $cd->cdid }, |
190 | { prefetch => { cd_to_producer => 'producer' } } |
191 | ); |
192 | |
193 | cmp_ok($left_join, '==', 1, 'prefetch with no join record present'); |
194 | |
195 | $queries = 0; |
196 | $schema->storage->debugcb(sub { $queries++ }); |
197 | $schema->storage->debug(1); |
198 | |
199 | my $tree_like = |
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200 | $schema->resultset('TreeLike')->find(5, |
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201 | { join => { parent => { parent => 'parent' } }, |
202 | prefetch => { parent => { parent => 'parent' } } }); |
203 | |
204 | is($tree_like->name, 'quux', 'Bottom of tree ok'); |
205 | $tree_like = $tree_like->parent; |
206 | is($tree_like->name, 'baz', 'First level up ok'); |
207 | $tree_like = $tree_like->parent; |
208 | is($tree_like->name, 'bar', 'Second level up ok'); |
209 | $tree_like = $tree_like->parent; |
210 | is($tree_like->name, 'foo', 'Third level up ok'); |
211 | |
212 | $schema->storage->debug($orig_debug); |
213 | $schema->storage->debugobj->callback(undef); |
214 | |
215 | cmp_ok($queries, '==', 1, 'Only one query run'); |
216 | |
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217 | $tree_like = $schema->resultset('TreeLike')->search({'me.id' => 2}); |
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218 | $tree_like = $tree_like->search_related('children')->search_related('children')->search_related('children')->first; |
219 | is($tree_like->name, 'quux', 'Tree search_related ok'); |
220 | |
221 | $tree_like = $schema->resultset('TreeLike')->search_related('children', |
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222 | { 'children.id' => 3, 'children_2.id' => 4 }, |
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223 | { prefetch => { children => 'children' } } |
224 | )->first; |
225 | is(eval { $tree_like->children->first->children->first->name }, 'quux', |
226 | 'Tree search_related with prefetch ok'); |
227 | |
228 | $tree_like = eval { $schema->resultset('TreeLike')->search( |
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229 | { 'children.id' => 3, 'children_2.id' => 6 }, |
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230 | { join => [qw/children children/] } |
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231 | )->search_related('children', { 'children_4.id' => 7 }, { prefetch => 'children' } |
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232 | )->first->children->first; }; |
233 | is(eval { $tree_like->name }, 'fong', 'Tree with multiple has_many joins ok'); |
234 | |
235 | # test that collapsed joins don't get a _2 appended to the alias |
236 | |
237 | my $sql = ''; |
238 | $schema->storage->debugcb(sub { $sql = $_[1] }); |
239 | $schema->storage->debug(1); |
240 | |
241 | eval { |
242 | my $row = $schema->resultset('Artist')->search_related('cds', undef, { |
243 | join => 'tracks', |
244 | prefetch => 'tracks', |
245 | })->search_related('tracks')->first; |
246 | }; |
247 | |
248 | like( $sql, qr/^SELECT tracks_2\.trackid/, "join not collapsed for search_related" ); |
249 | |
250 | $schema->storage->debug($orig_debug); |
251 | $schema->storage->debugobj->callback(undef); |
252 | |
253 | $rs = $schema->resultset('Artist'); |
254 | $rs->create({ artistid => 4, name => 'Unknown singer-songwriter' }); |
255 | $rs->create({ artistid => 5, name => 'Emo 4ever' }); |
256 | @artists = $rs->search(undef, { prefetch => 'cds', order_by => 'artistid' }); |
257 | is(scalar @artists, 5, 'has_many prefetch with adjacent empty rows ok'); |
258 | |
259 | # ------------- |
260 | # |
261 | # Tests for multilevel has_many prefetch |
262 | |
263 | # artist resultsets - with and without prefetch |
264 | my $art_rs = $schema->resultset('Artist'); |
265 | my $art_rs_pr = $art_rs->search( |
266 | {}, |
267 | { |
268 | join => [ { cds => ['tracks'] } ], |
269 | prefetch => [ { cds => ['tracks'] } ], |
270 | cache => 1 # last test needs this |
271 | } |
272 | ); |
273 | |
274 | # This test does the same operation twice - once on a |
275 | # set of items fetched from the db with no prefetch of has_many rels |
276 | # The second prefetches 2 levels of has_many |
277 | # We check things are the same by comparing the name or title |
278 | # we build everything into a hash structure and compare the one |
279 | # from each rs to see what differs |
280 | |
281 | sub make_hash_struc { |
282 | my $rs = shift; |
283 | |
284 | my $struc = {}; |
285 | foreach my $art ( $rs->all ) { |
286 | foreach my $cd ( $art->cds ) { |
287 | foreach my $track ( $cd->tracks ) { |
288 | $struc->{ $art->name }{ $cd->title }{ $track->title }++; |
289 | } |
290 | } |
291 | } |
292 | return $struc; |
293 | } |
294 | |
295 | $queries = 0; |
296 | $schema->storage->debugcb(sub { $queries++ }); |
297 | $schema->storage->debug(1); |
298 | |
299 | my $prefetch_result = make_hash_struc($art_rs_pr); |
300 | |
301 | is($queries, 1, 'nested prefetch across has_many->has_many ran exactly 1 query'); |
302 | |
303 | my $nonpre_result = make_hash_struc($art_rs); |
304 | |
305 | is_deeply( $prefetch_result, $nonpre_result, |
306 | 'Compare 2 level prefetch result to non-prefetch result' ); |
307 | |
308 | $queries = 0; |
309 | |
310 | is($art_rs_pr->search_related('cds')->search_related('tracks')->first->title, |
311 | 'Fowlin', |
312 | 'chained has_many->has_many search_related ok' |
313 | ); |
314 | |
315 | is($queries, 0, 'chained search_related after has_many->has_many prefetch ran no queries'); |
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316 | |