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For starman worker -M FindBin --max-requests 50 --workers 2 --user=kohadev-koha --group kohadev-koha --pid /var/run/koha/kohadev/plack.pid --daemonize --access-log /var/log/koha/kohadev/plack.log --error-log /var/log/koha/kohadev/plack-error.log -E deployment --socket /var/run/koha/kohadev/plack.sock /etc/koha/sites/kohadev/plack.psgi
  Run on Fri Jan 8 14:31:06 2016
Reported on Fri Jan 8 14:31:37 2016

Filename/usr/share/perl5/DBIx/Class/ResultSource/RowParser.pm
StatementsExecuted 15 statements in 3.05ms
Subroutines
Calls P F Exclusive
Time		 Inclusive
Time		 Subroutine
1111.99ms2.21msDBIx::Class::ResultSource::RowParser::::BEGIN@12DBIx::Class::ResultSource::RowParser::BEGIN@12
11129µs42µsDBIx::Class::ResultSource::RowParser::::BEGIN@10DBIx::Class::ResultSource::RowParser::BEGIN@10
11114µs21µsDBIx::Class::ResultSource::RowParser::::BEGIN@4DBIx::Class::ResultSource::RowParser::BEGIN@4
11112µs47µsDBIx::Class::ResultSource::RowParser::::BEGIN@9DBIx::Class::ResultSource::RowParser::BEGIN@9
1118µs45µsDBIx::Class::ResultSource::RowParser::::BEGIN@7DBIx::Class::ResultSource::RowParser::BEGIN@7
1118µs207µsDBIx::Class::ResultSource::RowParser::::BEGIN@17DBIx::Class::ResultSource::RowParser::BEGIN@17
1117µs11µsDBIx::Class::ResultSource::RowParser::::BEGIN@5DBIx::Class::ResultSource::RowParser::BEGIN@5
0000s0sDBIx::Class::ResultSource::RowParser::::__ANON__[:196]DBIx::Class::ResultSource::RowParser::__ANON__[:196]
0000s0sDBIx::Class::ResultSource::RowParser::::__ANON__[:198]DBIx::Class::ResultSource::RowParser::__ANON__[:198]
0000s0sDBIx::Class::ResultSource::RowParser::::__ANON__[:422]DBIx::Class::ResultSource::RowParser::__ANON__[:422]
0000s0sDBIx::Class::ResultSource::RowParser::::__unique_numlistDBIx::Class::ResultSource::RowParser::__unique_numlist
0000s0sDBIx::Class::ResultSource::RowParser::::_mk_row_parserDBIx::Class::ResultSource::RowParser::_mk_row_parser
0000s0sDBIx::Class::ResultSource::RowParser::::_resolve_collapseDBIx::Class::ResultSource::RowParser::_resolve_collapse
0000s0sDBIx::Class::ResultSource::RowParser::::_resolve_prefetchDBIx::Class::ResultSource::RowParser::_resolve_prefetch
Call graph for these subroutines as a Graphviz dot language file.
Line State
ments		 Time
on line		 Calls Time
in subs		 Code
1package # hide from the pauses
2 DBIx::Class::ResultSource::RowParser;
3
4237µs228µs
# spent 21µs (14+7) within DBIx::Class::ResultSource::RowParser::BEGIN@4 which was called: # once (14µs+7µs) by base::import at line 4
use strict;
# spent 21µs making 1 call to DBIx::Class::ResultSource::RowParser::BEGIN@4 # spent 7µs making 1 call to strict::import
5237µs215µs
# spent 11µs (7+4) within DBIx::Class::ResultSource::RowParser::BEGIN@5 which was called: # once (7µs+4µs) by base::import at line 5
use warnings;
# spent 11µs making 1 call to DBIx::Class::ResultSource::RowParser::BEGIN@5 # spent 4µs making 1 call to warnings::import
6
7268µs245µs
# spent 45µs (8+37) within DBIx::Class::ResultSource::RowParser::BEGIN@7 which was called: # once (8µs+37µs) by base::import at line 7
use base 'DBIx::Class';
# spent 45µs making 1 call to DBIx::Class::ResultSource::RowParser::BEGIN@7 # spent 37µs making 1 call to base::import, recursion: max depth 2, sum of overlapping time 37µs
8
9270µs282µs
# spent 47µs (12+35) within DBIx::Class::ResultSource::RowParser::BEGIN@9 which was called: # once (12µs+35µs) by base::import at line 9
use Try::Tiny;
# spent 47µs making 1 call to DBIx::Class::ResultSource::RowParser::BEGIN@9 # spent 35µs making 1 call to Exporter::import
10274µs255µs
# spent 42µs (29+13) within DBIx::Class::ResultSource::RowParser::BEGIN@10 which was called: # once (29µs+13µs) by base::import at line 10
use List::Util qw(first max);
# spent 42µs making 1 call to DBIx::Class::ResultSource::RowParser::BEGIN@10 # spent 13µs making 1 call to List::Util::import
11
12159µs141µs
# spent 2.21ms (1.99+217µs) within DBIx::Class::ResultSource::RowParser::BEGIN@12 which was called: # once (1.99ms+217µs) by base::import at line 15
use DBIx::Class::ResultSource::RowParser::Util qw(
# spent 41µs making 1 call to Exporter::import
13 assemble_simple_parser
14 assemble_collapsing_parser
151159µs12.21ms);
# spent 2.21ms making 1 call to DBIx::Class::ResultSource::RowParser::BEGIN@12
16
1722.54ms2406µs
# spent 207µs (8+199) within DBIx::Class::ResultSource::RowParser::BEGIN@17 which was called: # once (8µs+199µs) by base::import at line 17
use namespace::clean;
# spent 207µs making 1 call to DBIx::Class::ResultSource::RowParser::BEGIN@17 # spent 199µs making 1 call to namespace::clean::import
18
19# Accepts one or more relationships for the current source and returns an
20# array of column names for each of those relationships. Column names are
21# prefixed relative to the current source, in accordance with where they appear
22# in the supplied relationships.
23sub _resolve_prefetch {
24 my ($self, $pre, $alias, $alias_map, $order, $pref_path) = @_;
25 $pref_path ||= [];
26
27 if (not defined $pre or not length $pre) {
28 return ();
29 }
30 elsif( ref $pre eq 'ARRAY' ) {
31 return
32 map { $self->_resolve_prefetch( $_, $alias, $alias_map, $order, [ @$pref_path ] ) }
33 @$pre;
34 }
35 elsif( ref $pre eq 'HASH' ) {
36 my @ret =
37 map {
38 $self->_resolve_prefetch($_, $alias, $alias_map, $order, [ @$pref_path ] ),
39 $self->related_source($_)->_resolve_prefetch(
40 $pre->{$_}, "${alias}.$_", $alias_map, $order, [ @$pref_path, $_] )
41 } keys %$pre;
42 return @ret;
43 }
44 elsif( ref $pre ) {
45 $self->throw_exception(
46 "don't know how to resolve prefetch reftype ".ref($pre));
47 }
48 else {
49 my $p = $alias_map;
50 $p = $p->{$_} for (@$pref_path, $pre);
51
52 $self->throw_exception (
53 "Unable to resolve prefetch '$pre' - join alias map does not contain an entry for path: "
54 . join (' -> ', @$pref_path, $pre)
55 ) if (ref $p->{-join_aliases} ne 'ARRAY' or not @{$p->{-join_aliases}} );
56
57 my $as = shift @{$p->{-join_aliases}};
58
59 my $rel_info = $self->relationship_info( $pre );
60 $self->throw_exception( $self->source_name . " has no such relationship '$pre'" )
61 unless $rel_info;
62
63 my $as_prefix = ($alias =~ /^.*?\.(.+)$/ ? $1.'.' : '');
64
65 return map { [ "${as}.$_", "${as_prefix}${pre}.$_", ] }
66 $self->related_source($pre)->columns;
67 }
68}
69
70# Takes an arrayref of {as} dbic column aliases and the collapse and select
71# attributes from the same $rs (the selector requirement is a temporary
72# workaround... I hope), and returns a coderef capable of:
73# my $me_pref_clps = $coderef->([$rs->cursor->next/all])
74# Where the $me_pref_clps arrayref is the future argument to inflate_result()
75#
76# For an example of this coderef in action (and to see its guts) look at
77# t/resultset/rowparser_internals.t
78#
79# This is a huge performance win, as we call the same code for every row
80# returned from the db, thus avoiding repeated method lookups when traversing
81# relationships
82#
83# Also since the coderef is completely stateless (the returned structure is
84# always fresh on every new invocation) this is a very good opportunity for
85# memoization if further speed improvements are needed
86#
87# The way we construct this coderef is somewhat fugly, although the result is
88# really worth it. The final coderef does not perform any kind of recursion -
89# the entire nested structure constructor is rolled out into a single scope.
90#
91# In any case - the output of this thing is meticulously micro-tested, so
92# any sort of adjustment/rewrite should be relatively easy (fsvo relatively)
93#
94sub _mk_row_parser {
95 # $args and $attrs are separated to delineate what is core collapser stuff and
96 # what is dbic $rs specific
97 my ($self, $args, $attrs) = @_;
98
99 die "HRI without pruning makes zero sense"
100 if ( $args->{hri_style} && ! $args->{prune_null_branches} );
101
102 my %common = (
103 hri_style => $args->{hri_style},
104 prune_null_branches => $args->{prune_null_branches},
105 val_index => { map
106 { $args->{inflate_map}[$_] => $_ }
107 ( 0 .. $#{$args->{inflate_map}} )
108 },
109 );
110
111 my $check_null_columns;
112
113 my $src = (! $args->{collapse} ) ? assemble_simple_parser(\%common) : do {
114 my $collapse_map = $self->_resolve_collapse ({
115 # FIXME
116 # only consider real columns (not functions) during collapse resolution
117 # this check shouldn't really be here, as fucktards are not supposed to
118 # alias random crap to existing column names anyway, but still - just in
119 # case
120 # FIXME !!!! - this does not yet deal with unbalanced selectors correctly
121 # (it is now trivial as the attrs specify where things go out of sync
122 # needs MOAR tests)
123 as => { map
124 { ref $attrs->{select}[$common{val_index}{$_}] ? () : ( $_ => $common{val_index}{$_} ) }
125 keys %{$common{val_index}}
126 },
127 premultiplied => $args->{premultiplied},
128 });
129
130 $check_null_columns = $collapse_map->{-identifying_columns}
131 if @{$collapse_map->{-identifying_columns}};
132
133 assemble_collapsing_parser({
134 %common,
135 collapse_map => $collapse_map,
136 });
137 };
138
139 utf8::upgrade($src)
140 if DBIx::Class::_ENV_::STRESSTEST_UTF8_UPGRADE_GENERATED_COLLAPSER_SOURCE;
141
142 return (
143 $args->{eval} ? ( eval "sub $src" || die $@ ) : $src,
144 $check_null_columns,
145 );
146}
147
148
149# Takes an arrayref selection list and generates a collapse-map representing
150# row-object fold-points. Every relationship is assigned a set of unique,
151# non-nullable columns (which may *not even be* from the same resultset)
152# and the collapser will use this information to correctly distinguish
153# data of individual to-be-row-objects. See t/resultset/rowparser_internals.t
154# for extensive RV examples
155sub _resolve_collapse {
156 my ($self, $args, $common_args) = @_;
157
158 # for comprehensible error messages put ourselves at the head of the relationship chain
159 $args->{_rel_chain} ||= [ $self->source_name ];
160
161 # record top-level fully-qualified column index, signify toplevelness
162 unless ($common_args->{_as_fq_idx}) {
163 $common_args->{_as_fq_idx} = { %{$args->{as}} };
164 $args->{_is_top_level} = 1;
165 };
166
167 my ($my_cols, $rel_cols);
168 for (keys %{$args->{as}}) {
169 if ($_ =~ /^ ([^\.]+) \. (.+) /x) {
170 $rel_cols->{$1}{$2} = 1;
171 }
172 else {
173 $my_cols->{$_} = {}; # important for ||='s below
174 }
175 }
176
177 my $relinfo;
178 # run through relationships, collect metadata
179 for my $rel (keys %$rel_cols) {
180 my $inf = $self->relationship_info ($rel);
181
182 $relinfo->{$rel} = {
183 is_single => ( $inf->{attrs}{accessor} && $inf->{attrs}{accessor} ne 'multi' ),
184 is_inner => ( ( $inf->{attrs}{join_type} || '' ) !~ /^left/i),
185 rsrc => $self->related_source($rel),
186 };
187
188 # FIME - need to use _resolve_cond here instead
189 my $cond = $inf->{cond};
190
191 if (
192 ref $cond eq 'HASH'
193 and
194 keys %$cond
195 and
196 ! defined first { $_ !~ /^foreign\./ } (keys %$cond)
197 and
198 ! defined first { $_ !~ /^self\./ } (values %$cond)
199 ) {
200 for my $f (keys %$cond) {
201 my $s = $cond->{$f};
202 $_ =~ s/^ (?: foreign | self ) \.//x for ($f, $s);
203 $relinfo->{$rel}{fk_map}{$s} = $f;
204 }
205 }
206 }
207
208 # inject non-left fk-bridges from *INNER-JOINED* children (if any)
209 for my $rel (grep { $relinfo->{$_}{is_inner} } keys %$relinfo) {
210 my $ri = $relinfo->{$rel};
211 for (keys %{$ri->{fk_map}} ) {
212 # need to know source from *our* pov, hence $rel.col
213 $my_cols->{$_} ||= { via_fk => "$rel.$ri->{fk_map}{$_}" }
214 if defined $rel_cols->{$rel}{$ri->{fk_map}{$_}} # in fact selected
215 }
216 }
217
218 # if the parent is already defined *AND* we have an inner reverse relationship
219 # (i.e. do not exist without it) , assume all of its related FKs are selected
220 # (even if they in fact are NOT in the select list). Keep a record of what we
221 # assumed, and if any such phantom-column becomes part of our own collapser,
222 # throw everything assumed-from-parent away and replace with the collapser of
223 # the parent (whatever it may be)
224 my $assumed_from_parent;
225 if ( ! $args->{_parent_info}{underdefined} and ! $args->{_parent_info}{rev_rel_is_optional} ) {
226 for my $col ( values %{$args->{_parent_info}{rel_condition} || {}} ) {
227 next if exists $my_cols->{$col};
228 $my_cols->{$col} = { via_collapse => $args->{_parent_info}{collapse_on_idcols} };
229 $assumed_from_parent->{columns}{$col}++;
230 }
231 }
232
233 # get colinfo for everything
234 if ($my_cols) {
235 my $ci = $self->columns_info;
236 $my_cols->{$_}{colinfo} = $ci->{$_} for keys %$my_cols;
237 }
238
239 my $collapse_map;
240
241 # first try to reuse the parent's collapser (i.e. reuse collapser over 1:1)
242 # (makes for a leaner coderef later)
243 unless ($collapse_map->{-identifying_columns}) {
244 $collapse_map->{-identifying_columns} = $args->{_parent_info}{collapse_on_idcols}
245 if $args->{_parent_info}{collapser_reusable};
246 }
247
248 # Still don't know how to collapse - try to resolve based on our columns (plus already inserted FK bridges)
249 if (
250 ! $collapse_map->{-identifying_columns}
251 and
252 $my_cols
253 and
254 my $idset = $self->_identifying_column_set ({map { $_ => $my_cols->{$_}{colinfo} } keys %$my_cols})
255 ) {
256 # see if the resulting collapser relies on any implied columns,
257 # and fix stuff up if this is the case
258 my @reduced_set = grep { ! $assumed_from_parent->{columns}{$_} } @$idset;
259
260 $collapse_map->{-identifying_columns} = [ __unique_numlist(
261 @{ $args->{_parent_info}{collapse_on_idcols}||[] },
262
263 (map
264 {
265 my $fqc = join ('.',
266 @{$args->{_rel_chain}}[1 .. $#{$args->{_rel_chain}}],
267 ( $my_cols->{$_}{via_fk} || $_ ),
268 );
269
270 $common_args->{_as_fq_idx}->{$fqc};
271 }
272 @reduced_set
273 ),
274 )];
275 }
276
277 # Stil don't know how to collapse - keep descending down 1:1 chains - if
278 # a related non-LEFT 1:1 is resolvable - its condition will collapse us
279 # too
280 unless ($collapse_map->{-identifying_columns}) {
281 my @candidates;
282
283 for my $rel (keys %$relinfo) {
284 next unless ($relinfo->{$rel}{is_single} && $relinfo->{$rel}{is_inner});
285
286 if ( my $rel_collapse = $relinfo->{$rel}{rsrc}->_resolve_collapse ({
287 as => $rel_cols->{$rel},
288 _rel_chain => [ @{$args->{_rel_chain}}, $rel ],
289 _parent_info => { underdefined => 1 },
290 }, $common_args)) {
291 push @candidates, $rel_collapse->{-identifying_columns};
292 }
293 }
294
295 # get the set with least amount of columns
296 # FIXME - maybe need to implement a data type order as well (i.e. prefer several ints
297 # to a single varchar)
298 if (@candidates) {
299 ($collapse_map->{-identifying_columns}) = sort { scalar @$a <=> scalar @$b } (@candidates);
300 }
301 }
302
303 # Stil don't know how to collapse, and we are the root node. Last ditch
304 # effort in case we are *NOT* premultiplied.
305 # Run through *each multi* all the way down, left or not, and all
306 # *left* singles (a single may become a multi underneath) . When everything
307 # gets back see if all the rels link to us definitively. If this is the
308 # case we are good - either one of them will define us, or if all are NULLs
309 # we know we are "unique" due to the "non-premultiplied" check
310 if (
311 ! $collapse_map->{-identifying_columns}
312 and
313 ! $args->{premultiplied}
314 and
315 $args->{_is_top_level}
316 ) {
317 my (@collapse_sets, $uncollapsible_chain);
318
319 for my $rel (keys %$relinfo) {
320
321 # we already looked at these higher up
322 next if ($relinfo->{$rel}{is_single} && $relinfo->{$rel}{is_inner});
323
324 if (my $clps = $relinfo->{$rel}{rsrc}->_resolve_collapse ({
325 as => $rel_cols->{$rel},
326 _rel_chain => [ @{$args->{_rel_chain}}, $rel ],
327 _parent_info => { underdefined => 1 },
328 }, $common_args) ) {
329
330 # for singles use the idcols wholesale (either there or not)
331 if ($relinfo->{$rel}{is_single}) {
332 push @collapse_sets, $clps->{-identifying_columns};
333 }
334 elsif (! $relinfo->{$rel}{fk_map}) {
335 $uncollapsible_chain = 1;
336 last;
337 }
338 else {
339 my $defined_cols_parent_side;
340
341 for my $fq_col ( grep { /^$rel\.[^\.]+$/ } keys %{$args->{as}} ) {
342 my ($col) = $fq_col =~ /([^\.]+)$/;
343
344 $defined_cols_parent_side->{$_} = $args->{as}{$fq_col} for grep
345 { $relinfo->{$rel}{fk_map}{$_} eq $col }
346 keys %{$relinfo->{$rel}{fk_map}}
347 ;
348 }
349
350 if (my $set = $self->_identifying_column_set([ keys %$defined_cols_parent_side ]) ) {
351 push @collapse_sets, [ sort map { $defined_cols_parent_side->{$_} } @$set ];
352 }
353 else {
354 $uncollapsible_chain = 1;
355 last;
356 }
357 }
358 }
359 else {
360 $uncollapsible_chain = 1;
361 last;
362 }
363 }
364
365 unless ($uncollapsible_chain) {
366 # if we got here - we are good to go, but the construction is tricky
367 # since our children will want to include our collapse criteria - we
368 # don't give them anything (safe, since they are all collapsible on their own)
369 # in addition we record the individual collapse possibilities
370 # of all left children node collapsers, and merge them in the rowparser
371 # coderef later
372 $collapse_map->{-identifying_columns} = [];
373 $collapse_map->{-identifying_columns_variants} = [ sort {
374 (scalar @$a) <=> (scalar @$b) or max(@$a) <=> max(@$b)
375 } @collapse_sets ];
376 }
377 }
378
379 # stop descending into children if we were called by a parent for first-pass
380 # and don't despair if nothing was found (there may be other parallel branches
381 # to dive into)
382 if ($args->{_parent_info}{underdefined}) {
383 return $collapse_map->{-identifying_columns} ? $collapse_map : undef
384 }
385 # nothing down the chain resolved - can't calculate a collapse-map
386 elsif (! $collapse_map->{-identifying_columns}) {
387 $self->throw_exception ( sprintf
388 "Unable to calculate a definitive collapse column set for %s%s: fetch more unique non-nullable columns",
389 $self->source_name,
390 @{$args->{_rel_chain}} > 1
391 ? sprintf (' (last member of the %s chain)', join ' -> ', @{$args->{_rel_chain}} )
392 : ''
393 ,
394 );
395 }
396
397 # If we got that far - we are collapsable - GREAT! Now go down all children
398 # a second time, and fill in the rest
399
400 $collapse_map->{-identifying_columns} = [ __unique_numlist(
401 @{ $args->{_parent_info}{collapse_on_idcols}||[] },
402 @{ $collapse_map->{-identifying_columns} },
403 )];
404
405 my @id_sets;
406 for my $rel (sort keys %$relinfo) {
407
408 $collapse_map->{$rel} = $relinfo->{$rel}{rsrc}->_resolve_collapse ({
409 as => { map { $_ => 1 } ( keys %{$rel_cols->{$rel}} ) },
410 _rel_chain => [ @{$args->{_rel_chain}}, $rel],
411 _parent_info => {
412 # shallow copy
413 collapse_on_idcols => [ @{$collapse_map->{-identifying_columns}} ],
414
415 rel_condition => $relinfo->{$rel}{fk_map},
416
417 is_optional => ! $relinfo->{$rel}{is_inner},
418
419 # if there is at least one *inner* reverse relationship which is HASH-based (equality only)
420 # we can safely assume that the child can not exist without us
421 rev_rel_is_optional => ( first
422 { ref $_->{cond} eq 'HASH' and ($_->{attrs}{join_type}||'') !~ /^left/i }
423 values %{ $self->reverse_relationship_info($rel) },
424 ) ? 0 : 1,
425
426 # if this is a 1:1 our own collapser can be used as a collapse-map
427 # (regardless of left or not)
428 collapser_reusable => (
429 $relinfo->{$rel}{is_single}
430 &&
431 $relinfo->{$rel}{is_inner}
432 &&
433 @{$collapse_map->{-identifying_columns}}
434 ) ? 1 : 0,
435 },
436 }, $common_args );
437
438 $collapse_map->{$rel}{-is_single} = 1 if $relinfo->{$rel}{is_single};
439 $collapse_map->{$rel}{-is_optional} ||= 1 unless $relinfo->{$rel}{is_inner};
440 }
441
442 return $collapse_map;
443}
444
445# adding a dep on MoreUtils *just* for this is retarded
446sub __unique_numlist {
447 sort { $a <=> $b } keys %{ {map { $_ => 1 } @_ }}
448}
449
45013µs1192µs1;
# spent 192µs making 1 call to B::Hooks::EndOfScope::XS::__ANON__
Report produced by the NYTProf 6.02 Perl profiler, developed by Tim Bunce and Adam Kaplan.