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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 => 74 ); |
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21 | } |
22 | |
23 | # figure out if we've got a version of sqlite that is older than 3.2.6, in |
24 | # which case COUNT(DISTINCT()) doesn't work |
25 | my $is_broken_sqlite = 0; |
26 | my ($sqlite_major_ver,$sqlite_minor_ver,$sqlite_patch_ver) = |
27 | split /\./, $schema->storage->dbh->get_info(18); |
28 | if( $schema->storage->dbh->get_info(17) eq 'SQLite' && |
29 | ( ($sqlite_major_ver < 3) || |
30 | ($sqlite_major_ver == 3 && $sqlite_minor_ver < 2) || |
31 | ($sqlite_major_ver == 3 && $sqlite_minor_ver == 2 && $sqlite_patch_ver < 6) ) ) { |
32 | $is_broken_sqlite = 1; |
33 | } |
34 | |
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35 | my $queries = 0; |
36 | $schema->storage->debugcb(sub { $queries++; }); |
37 | $schema->storage->debug(1); |
38 | |
39 | my @cd = $rs->all; |
40 | |
41 | is($cd[0]->title, 'Spoonful of bees', 'First record returned ok'); |
42 | |
43 | ok(!defined $cd[0]->liner_notes, 'No prefetch for NULL LEFT join'); |
44 | |
45 | is($cd[1]->{_relationship_data}{liner_notes}->notes, 'Buy Whiskey!', 'Prefetch for present LEFT JOIN'); |
46 | |
47 | is(ref $cd[1]->liner_notes, 'DBICTest::LinerNotes', 'Prefetch returns correct class'); |
48 | |
49 | is($cd[2]->{_inflated_column}{artist}->name, 'Caterwauler McCrae', 'Prefetch on parent object ok'); |
50 | |
51 | is($queries, 1, 'prefetch ran only 1 select statement'); |
52 | |
53 | $schema->storage->debug($orig_debug); |
54 | $schema->storage->debugobj->callback(undef); |
55 | |
56 | # test for partial prefetch via columns attr |
57 | my $cd = $schema->resultset('CD')->find(1, |
58 | { |
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59 | columns => [qw/title artist artist.name/], |
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60 | join => { 'artist' => {} } |
61 | } |
62 | ); |
63 | ok(eval { $cd->artist->name eq 'Caterwauler McCrae' }, 'single related column prefetched'); |
64 | |
65 | # start test for nested prefetch SELECT count |
66 | $queries = 0; |
67 | $schema->storage->debugcb(sub { $queries++ }); |
68 | $schema->storage->debug(1); |
69 | |
70 | $rs = $schema->resultset('Tag')->search( |
71 | {}, |
72 | { |
73 | prefetch => { cd => 'artist' } |
74 | } |
75 | ); |
76 | |
77 | my $tag = $rs->first; |
78 | |
79 | is( $tag->cd->title, 'Spoonful of bees', 'step 1 ok for nested prefetch' ); |
80 | |
81 | is( $tag->cd->artist->name, 'Caterwauler McCrae', 'step 2 ok for nested prefetch'); |
82 | |
83 | # count the SELECTs |
84 | #$selects++ if /SELECT(?!.*WHERE 1=0.*)/; |
85 | is($queries, 1, 'nested prefetch ran exactly 1 select statement (excluding column_info)'); |
86 | |
87 | $queries = 0; |
88 | |
89 | is($tag->search_related('cd')->search_related('artist')->first->name, |
90 | 'Caterwauler McCrae', |
91 | 'chained belongs_to->belongs_to search_related ok'); |
92 | |
93 | is($queries, 0, 'chained search_related after belontgs_to->belongs_to prefetch ran no queries'); |
94 | |
95 | $queries = 0; |
96 | |
97 | $cd = $schema->resultset('CD')->find(1, { prefetch => 'artist' }); |
98 | |
99 | is($cd->{_inflated_column}{artist}->name, 'Caterwauler McCrae', 'artist prefetched correctly on find'); |
100 | |
101 | is($queries, 1, 'find with prefetch ran exactly 1 select statement (excluding column_info)'); |
102 | |
103 | $queries = 0; |
104 | |
105 | $schema->storage->debugcb(sub { $queries++; }); |
106 | |
107 | $cd = $schema->resultset('CD')->find(1, { prefetch => { cd_to_producer => 'producer' } }); |
108 | |
109 | is($cd->producers->first->name, 'Matt S Trout', 'many_to_many accessor ok'); |
110 | |
111 | is($queries, 1, 'many_to_many accessor with nested prefetch ran exactly 1 query'); |
112 | |
113 | $queries = 0; |
114 | |
115 | my $producers = $cd->search_related('cd_to_producer')->search_related('producer'); |
116 | |
117 | is($producers->first->name, 'Matt S Trout', 'chained many_to_many search_related ok'); |
118 | |
119 | is($queries, 0, 'chained search_related after many_to_many prefetch ran no queries'); |
120 | |
121 | $schema->storage->debug($orig_debug); |
122 | $schema->storage->debugobj->callback(undef); |
123 | |
124 | $rs = $schema->resultset('Tag')->search( |
125 | {}, |
126 | { |
127 | join => { cd => 'artist' }, |
128 | prefetch => { cd => 'artist' } |
129 | } |
130 | ); |
131 | |
132 | cmp_ok( $rs->count, '>=', 0, 'nested prefetch does not duplicate joins' ); |
133 | |
134 | my ($artist) = $schema->resultset("Artist")->search({ 'cds.year' => 2001 }, |
135 | { order_by => 'artistid DESC', join => 'cds' }); |
136 | |
137 | is($artist->name, 'Random Boy Band', "Join search by object ok"); |
138 | |
139 | my @cds = $schema->resultset("CD")->search({ 'liner_notes.notes' => 'Buy Merch!' }, |
140 | { join => 'liner_notes' }); |
141 | |
142 | cmp_ok(scalar @cds, '==', 1, "Single CD retrieved via might_have"); |
143 | |
144 | is($cds[0]->title, "Generic Manufactured Singles", "Correct CD retrieved"); |
145 | |
146 | my @artists = $schema->resultset("Artist")->search({ 'tags.tag' => 'Shiny' }, |
147 | { join => { 'cds' => 'tags' } }); |
148 | |
149 | cmp_ok( @artists, '==', 2, "two-join search ok" ); |
150 | |
151 | $rs = $schema->resultset("CD")->search( |
152 | {}, |
153 | { group_by => [qw/ title me.cdid /] } |
154 | ); |
155 | |
156 | SKIP: { |
157 | skip "SQLite < 3.2.6 doesn't understand COUNT(DISTINCT())", 1 |
158 | if $is_broken_sqlite; |
159 | cmp_ok( $rs->count, '==', 5, "count() ok after group_by on main pk" ); |
160 | } |
161 | |
162 | cmp_ok( scalar $rs->all, '==', 5, "all() returns same count as count() after group_by on main pk" ); |
163 | |
164 | $rs = $schema->resultset("CD")->search( |
165 | {}, |
166 | { join => [qw/ artist /], group_by => [qw/ artist.name /] } |
167 | ); |
168 | |
169 | SKIP: { |
170 | skip "SQLite < 3.2.6 doesn't understand COUNT(DISTINCT())", 1 |
171 | if $is_broken_sqlite; |
172 | cmp_ok( $rs->count, '==', 3, "count() ok after group_by on related column" ); |
173 | } |
174 | |
175 | $rs = $schema->resultset("Artist")->search( |
176 | {}, |
177 | { join => [qw/ cds /], group_by => [qw/ me.name /], having =>{ 'MAX(cds.cdid)'=> \'< 5' } } |
178 | ); |
179 | |
180 | cmp_ok( $rs->all, '==', 2, "results ok after group_by on related column with a having" ); |
181 | |
182 | $rs = $rs->search( undef, { having =>{ 'count(*)'=> \'> 2' }}); |
183 | |
184 | cmp_ok( $rs->all, '==', 1, "count() ok after group_by on related column with a having" ); |
185 | |
186 | $rs = $schema->resultset("Artist")->search( |
187 | { 'cds.title' => 'Spoonful of bees', |
188 | 'cds_2.title' => 'Forkful of bees' }, |
189 | { join => [ 'cds', 'cds' ] }); |
190 | |
191 | SKIP: { |
192 | skip "SQLite < 3.2.6 doesn't understand COUNT(DISTINCT())", 1 |
193 | if $is_broken_sqlite; |
194 | cmp_ok($rs->count, '==', 1, "single artist returned from multi-join"); |
195 | } |
196 | |
197 | is($rs->next->name, 'Caterwauler McCrae', "Correct artist returned"); |
198 | |
199 | $cd = $schema->resultset('Artist')->first->create_related('cds', |
200 | { |
201 | title => 'Unproduced Single', |
202 | year => 2007 |
203 | }); |
204 | |
205 | my $left_join = $schema->resultset('CD')->search( |
206 | { 'me.cdid' => $cd->cdid }, |
207 | { prefetch => { cd_to_producer => 'producer' } } |
208 | ); |
209 | |
210 | cmp_ok($left_join, '==', 1, 'prefetch with no join record present'); |
211 | |
212 | $queries = 0; |
213 | $schema->storage->debugcb(sub { $queries++ }); |
214 | $schema->storage->debug(1); |
215 | |
216 | my $tree_like = |
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217 | $schema->resultset('TreeLike')->find(5, |
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218 | { join => { parent => { parent => 'parent' } }, |
219 | prefetch => { parent => { parent => 'parent' } } }); |
220 | |
221 | is($tree_like->name, 'quux', 'Bottom of tree ok'); |
222 | $tree_like = $tree_like->parent; |
223 | is($tree_like->name, 'baz', 'First level up ok'); |
224 | $tree_like = $tree_like->parent; |
225 | is($tree_like->name, 'bar', 'Second level up ok'); |
226 | $tree_like = $tree_like->parent; |
227 | is($tree_like->name, 'foo', 'Third level up ok'); |
228 | |
229 | $schema->storage->debug($orig_debug); |
230 | $schema->storage->debugobj->callback(undef); |
231 | |
232 | cmp_ok($queries, '==', 1, 'Only one query run'); |
233 | |
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234 | $tree_like = $schema->resultset('TreeLike')->search({'me.id' => 2}); |
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235 | $tree_like = $tree_like->search_related('children')->search_related('children')->search_related('children')->first; |
236 | is($tree_like->name, 'quux', 'Tree search_related ok'); |
237 | |
238 | $tree_like = $schema->resultset('TreeLike')->search_related('children', |
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239 | { 'children.id' => 3, 'children_2.id' => 4 }, |
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240 | { prefetch => { children => 'children' } } |
241 | )->first; |
242 | is(eval { $tree_like->children->first->children->first->name }, 'quux', |
243 | 'Tree search_related with prefetch ok'); |
244 | |
245 | $tree_like = eval { $schema->resultset('TreeLike')->search( |
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246 | { 'children.id' => 3, 'children_2.id' => 6 }, |
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247 | { join => [qw/children children/] } |
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248 | )->search_related('children', { 'children_4.id' => 7 }, { prefetch => 'children' } |
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249 | )->first->children->first; }; |
250 | is(eval { $tree_like->name }, 'fong', 'Tree with multiple has_many joins ok'); |
251 | |
252 | # test that collapsed joins don't get a _2 appended to the alias |
253 | |
254 | my $sql = ''; |
255 | $schema->storage->debugcb(sub { $sql = $_[1] }); |
256 | $schema->storage->debug(1); |
257 | |
258 | eval { |
259 | my $row = $schema->resultset('Artist')->search_related('cds', undef, { |
260 | join => 'tracks', |
261 | prefetch => 'tracks', |
262 | })->search_related('tracks')->first; |
263 | }; |
264 | |
265 | like( $sql, qr/^SELECT tracks_2\.trackid/, "join not collapsed for search_related" ); |
266 | |
267 | $schema->storage->debug($orig_debug); |
268 | $schema->storage->debugobj->callback(undef); |
269 | |
270 | $rs = $schema->resultset('Artist'); |
271 | $rs->create({ artistid => 4, name => 'Unknown singer-songwriter' }); |
272 | $rs->create({ artistid => 5, name => 'Emo 4ever' }); |
273 | @artists = $rs->search(undef, { prefetch => 'cds', order_by => 'artistid' }); |
274 | is(scalar @artists, 5, 'has_many prefetch with adjacent empty rows ok'); |
275 | |
276 | # ------------- |
277 | # |
278 | # Tests for multilevel has_many prefetch |
279 | |
280 | # artist resultsets - with and without prefetch |
281 | my $art_rs = $schema->resultset('Artist'); |
282 | my $art_rs_pr = $art_rs->search( |
283 | {}, |
284 | { |
285 | join => [ { cds => ['tracks'] } ], |
286 | prefetch => [ { cds => ['tracks'] } ], |
287 | cache => 1 # last test needs this |
288 | } |
289 | ); |
290 | |
291 | # This test does the same operation twice - once on a |
292 | # set of items fetched from the db with no prefetch of has_many rels |
293 | # The second prefetches 2 levels of has_many |
294 | # We check things are the same by comparing the name or title |
295 | # we build everything into a hash structure and compare the one |
296 | # from each rs to see what differs |
297 | |
298 | sub make_hash_struc { |
299 | my $rs = shift; |
300 | |
301 | my $struc = {}; |
302 | foreach my $art ( $rs->all ) { |
303 | foreach my $cd ( $art->cds ) { |
304 | foreach my $track ( $cd->tracks ) { |
305 | $struc->{ $art->name }{ $cd->title }{ $track->title }++; |
306 | } |
307 | } |
308 | } |
309 | return $struc; |
310 | } |
311 | |
312 | $queries = 0; |
313 | $schema->storage->debugcb(sub { $queries++ }); |
314 | $schema->storage->debug(1); |
315 | |
316 | my $prefetch_result = make_hash_struc($art_rs_pr); |
317 | |
318 | is($queries, 1, 'nested prefetch across has_many->has_many ran exactly 1 query'); |
319 | |
320 | my $nonpre_result = make_hash_struc($art_rs); |
321 | |
322 | is_deeply( $prefetch_result, $nonpre_result, |
323 | 'Compare 2 level prefetch result to non-prefetch result' ); |
324 | |
325 | $queries = 0; |
326 | |
327 | is($art_rs_pr->search_related('cds')->search_related('tracks')->first->title, |
328 | 'Fowlin', |
329 | 'chained has_many->has_many search_related ok' |
330 | ); |
331 | |
332 | is($queries, 0, 'chained search_related after has_many->has_many prefetch ran no queries'); |
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333 | |