Commit | Line | Data |
8b445e33 |
1 | package DBIx::Class::Storage::DBI; |
e673f011 |
2 | # -*- mode: cperl; cperl-indent-level: 2 -*- |
8b445e33 |
3 | |
a62cf8d4 |
4 | use base 'DBIx::Class::Storage'; |
5 | |
20a2c954 |
6 | use strict; |
7 | use warnings; |
8b445e33 |
8 | use DBI; |
aeaf3ce2 |
9 | use SQL::Abstract::Limit; |
28927b50 |
10 | use DBIx::Class::Storage::DBI::Cursor; |
4c248161 |
11 | use DBIx::Class::Storage::Statistics; |
92b858c9 |
12 | use IO::File; |
701da8c4 |
13 | use Carp::Clan qw/DBIx::Class/; |
bd7efd39 |
14 | BEGIN { |
15 | |
cb5f2eea |
16 | package DBIC::SQL::Abstract; # Would merge upstream, but nate doesn't reply :( |
bd7efd39 |
17 | |
18 | use base qw/SQL::Abstract::Limit/; |
19 | |
2cc3a7be |
20 | # This prevents the caching of $dbh in S::A::L, I believe |
21 | sub new { |
22 | my $self = shift->SUPER::new(@_); |
23 | |
24 | # If limit_dialect is a ref (like a $dbh), go ahead and replace |
25 | # it with what it resolves to: |
26 | $self->{limit_dialect} = $self->_find_syntax($self->{limit_dialect}) |
27 | if ref $self->{limit_dialect}; |
28 | |
29 | $self; |
30 | } |
31 | |
260129d8 |
32 | sub _RowNumberOver { |
33 | my ($self, $sql, $order, $rows, $offset ) = @_; |
34 | |
35 | $offset += 1; |
36 | my $last = $rows + $offset; |
37 | my ( $order_by ) = $self->_order_by( $order ); |
38 | |
39 | $sql = <<""; |
40 | SELECT * FROM |
41 | ( |
42 | SELECT Q1.*, ROW_NUMBER() OVER( ) AS ROW_NUM FROM ( |
43 | $sql |
44 | $order_by |
45 | ) Q1 |
46 | ) Q2 |
47 | WHERE ROW_NUM BETWEEN $offset AND $last |
48 | |
49 | return $sql; |
50 | } |
51 | |
52 | |
2cc3a7be |
53 | # While we're at it, this should make LIMIT queries more efficient, |
54 | # without digging into things too deeply |
55 | sub _find_syntax { |
56 | my ($self, $syntax) = @_; |
e4cc8257 |
57 | my $dbhname = ref $syntax eq 'HASH' ? $syntax->{Driver}{Name} : ''; |
260129d8 |
58 | if(ref($self) && $dbhname && $dbhname eq 'DB2') { |
59 | return 'RowNumberOver'; |
60 | } |
61 | |
2cc3a7be |
62 | $self->{_cached_syntax} ||= $self->SUPER::_find_syntax($syntax); |
63 | } |
64 | |
54540863 |
65 | sub select { |
66 | my ($self, $table, $fields, $where, $order, @rest) = @_; |
6346a152 |
67 | $table = $self->_quote($table) unless ref($table); |
eac29141 |
68 | local $self->{rownum_hack_count} = 1 |
69 | if (defined $rest[0] && $self->{limit_dialect} eq 'RowNum'); |
54540863 |
70 | @rest = (-1) unless defined $rest[0]; |
0823196c |
71 | die "LIMIT 0 Does Not Compute" if $rest[0] == 0; |
72 | # and anyway, SQL::Abstract::Limit will cause a barf if we don't first |
8839560b |
73 | local $self->{having_bind} = []; |
bc0c9800 |
74 | my ($sql, @ret) = $self->SUPER::select( |
75 | $table, $self->_recurse_fields($fields), $where, $order, @rest |
76 | ); |
8839560b |
77 | return wantarray ? ($sql, @ret, @{$self->{having_bind}}) : $sql; |
54540863 |
78 | } |
79 | |
6346a152 |
80 | sub insert { |
81 | my $self = shift; |
82 | my $table = shift; |
83 | $table = $self->_quote($table) unless ref($table); |
84 | $self->SUPER::insert($table, @_); |
85 | } |
86 | |
87 | sub update { |
88 | my $self = shift; |
89 | my $table = shift; |
90 | $table = $self->_quote($table) unless ref($table); |
91 | $self->SUPER::update($table, @_); |
92 | } |
93 | |
94 | sub delete { |
95 | my $self = shift; |
96 | my $table = shift; |
97 | $table = $self->_quote($table) unless ref($table); |
98 | $self->SUPER::delete($table, @_); |
99 | } |
100 | |
54540863 |
101 | sub _emulate_limit { |
102 | my $self = shift; |
103 | if ($_[3] == -1) { |
104 | return $_[1].$self->_order_by($_[2]); |
105 | } else { |
106 | return $self->SUPER::_emulate_limit(@_); |
107 | } |
108 | } |
109 | |
110 | sub _recurse_fields { |
111 | my ($self, $fields) = @_; |
112 | my $ref = ref $fields; |
113 | return $self->_quote($fields) unless $ref; |
114 | return $$fields if $ref eq 'SCALAR'; |
115 | |
116 | if ($ref eq 'ARRAY') { |
eac29141 |
117 | return join(', ', map { |
118 | $self->_recurse_fields($_) |
119 | .(exists $self->{rownum_hack_count} |
120 | ? ' AS col'.$self->{rownum_hack_count}++ |
121 | : '') |
122 | } @$fields); |
54540863 |
123 | } elsif ($ref eq 'HASH') { |
124 | foreach my $func (keys %$fields) { |
125 | return $self->_sqlcase($func) |
126 | .'( '.$self->_recurse_fields($fields->{$func}).' )'; |
127 | } |
128 | } |
129 | } |
130 | |
131 | sub _order_by { |
132 | my $self = shift; |
133 | my $ret = ''; |
8839560b |
134 | my @extra; |
54540863 |
135 | if (ref $_[0] eq 'HASH') { |
136 | if (defined $_[0]->{group_by}) { |
137 | $ret = $self->_sqlcase(' group by ') |
138 | .$self->_recurse_fields($_[0]->{group_by}); |
139 | } |
8839560b |
140 | if (defined $_[0]->{having}) { |
141 | my $frag; |
142 | ($frag, @extra) = $self->_recurse_where($_[0]->{having}); |
143 | push(@{$self->{having_bind}}, @extra); |
144 | $ret .= $self->_sqlcase(' having ').$frag; |
145 | } |
54540863 |
146 | if (defined $_[0]->{order_by}) { |
7ce5cbe7 |
147 | $ret .= $self->_order_by($_[0]->{order_by}); |
54540863 |
148 | } |
d09c569a |
149 | } elsif (ref $_[0] eq 'SCALAR') { |
e535069e |
150 | $ret = $self->_sqlcase(' order by ').${ $_[0] }; |
d09c569a |
151 | } elsif (ref $_[0] eq 'ARRAY' && @{$_[0]}) { |
152 | my @order = @{+shift}; |
153 | $ret = $self->_sqlcase(' order by ') |
154 | .join(', ', map { |
155 | my $r = $self->_order_by($_, @_); |
156 | $r =~ s/^ ?ORDER BY //i; |
157 | $r; |
158 | } @order); |
54540863 |
159 | } else { |
160 | $ret = $self->SUPER::_order_by(@_); |
161 | } |
162 | return $ret; |
163 | } |
164 | |
f48dd03f |
165 | sub _order_directions { |
166 | my ($self, $order) = @_; |
167 | $order = $order->{order_by} if ref $order eq 'HASH'; |
168 | return $self->SUPER::_order_directions($order); |
169 | } |
170 | |
2a816814 |
171 | sub _table { |
bd7efd39 |
172 | my ($self, $from) = @_; |
173 | if (ref $from eq 'ARRAY') { |
174 | return $self->_recurse_from(@$from); |
175 | } elsif (ref $from eq 'HASH') { |
176 | return $self->_make_as($from); |
177 | } else { |
6346a152 |
178 | return $from; # would love to quote here but _table ends up getting called |
179 | # twice during an ->select without a limit clause due to |
180 | # the way S::A::Limit->select works. should maybe consider |
181 | # bypassing this and doing S::A::select($self, ...) in |
182 | # our select method above. meantime, quoting shims have |
183 | # been added to select/insert/update/delete here |
bd7efd39 |
184 | } |
185 | } |
186 | |
187 | sub _recurse_from { |
188 | my ($self, $from, @join) = @_; |
189 | my @sqlf; |
190 | push(@sqlf, $self->_make_as($from)); |
191 | foreach my $j (@join) { |
192 | my ($to, $on) = @$j; |
73856587 |
193 | |
54540863 |
194 | # check whether a join type exists |
195 | my $join_clause = ''; |
ca7b9fdf |
196 | my $to_jt = ref($to) eq 'ARRAY' ? $to->[0] : $to; |
197 | if (ref($to_jt) eq 'HASH' and exists($to_jt->{-join_type})) { |
198 | $join_clause = ' '.uc($to_jt->{-join_type}).' JOIN '; |
54540863 |
199 | } else { |
200 | $join_clause = ' JOIN '; |
201 | } |
73856587 |
202 | push(@sqlf, $join_clause); |
203 | |
bd7efd39 |
204 | if (ref $to eq 'ARRAY') { |
205 | push(@sqlf, '(', $self->_recurse_from(@$to), ')'); |
206 | } else { |
96cdbbab |
207 | push(@sqlf, $self->_make_as($to)); |
bd7efd39 |
208 | } |
209 | push(@sqlf, ' ON ', $self->_join_condition($on)); |
210 | } |
211 | return join('', @sqlf); |
212 | } |
213 | |
214 | sub _make_as { |
215 | my ($self, $from) = @_; |
54540863 |
216 | return join(' ', map { (ref $_ eq 'SCALAR' ? $$_ : $self->_quote($_)) } |
bc0c9800 |
217 | reverse each %{$self->_skip_options($from)}); |
73856587 |
218 | } |
219 | |
220 | sub _skip_options { |
54540863 |
221 | my ($self, $hash) = @_; |
222 | my $clean_hash = {}; |
223 | $clean_hash->{$_} = $hash->{$_} |
224 | for grep {!/^-/} keys %$hash; |
225 | return $clean_hash; |
bd7efd39 |
226 | } |
227 | |
228 | sub _join_condition { |
229 | my ($self, $cond) = @_; |
5efe4c79 |
230 | if (ref $cond eq 'HASH') { |
231 | my %j; |
bc0c9800 |
232 | for (keys %$cond) { |
233 | my $x = '= '.$self->_quote($cond->{$_}); $j{$_} = \$x; |
234 | }; |
5efe4c79 |
235 | return $self->_recurse_where(\%j); |
236 | } elsif (ref $cond eq 'ARRAY') { |
237 | return join(' OR ', map { $self->_join_condition($_) } @$cond); |
238 | } else { |
239 | die "Can't handle this yet!"; |
240 | } |
bd7efd39 |
241 | } |
242 | |
2a816814 |
243 | sub _quote { |
244 | my ($self, $label) = @_; |
245 | return '' unless defined $label; |
3b24f6ea |
246 | return "*" if $label eq '*'; |
41728a6e |
247 | return $label unless $self->{quote_char}; |
3b24f6ea |
248 | if(ref $self->{quote_char} eq "ARRAY"){ |
249 | return $self->{quote_char}->[0] . $label . $self->{quote_char}->[1] |
250 | if !defined $self->{name_sep}; |
251 | my $sep = $self->{name_sep}; |
252 | return join($self->{name_sep}, |
253 | map { $self->{quote_char}->[0] . $_ . $self->{quote_char}->[1] } |
254 | split(/\Q$sep\E/,$label)); |
255 | } |
2a816814 |
256 | return $self->SUPER::_quote($label); |
257 | } |
258 | |
7be93b07 |
259 | sub limit_dialect { |
260 | my $self = shift; |
261 | $self->{limit_dialect} = shift if @_; |
262 | return $self->{limit_dialect}; |
263 | } |
264 | |
2437a1e3 |
265 | sub quote_char { |
266 | my $self = shift; |
267 | $self->{quote_char} = shift if @_; |
268 | return $self->{quote_char}; |
269 | } |
270 | |
271 | sub name_sep { |
272 | my $self = shift; |
273 | $self->{name_sep} = shift if @_; |
274 | return $self->{name_sep}; |
275 | } |
276 | |
bd7efd39 |
277 | } # End of BEGIN block |
278 | |
8b445e33 |
279 | use base qw/DBIx::Class/; |
280 | |
1f692767 |
281 | __PACKAGE__->load_components(qw/AccessorGroup/); |
8b445e33 |
282 | |
223b8fe3 |
283 | __PACKAGE__->mk_group_accessors('simple' => |
2cc3a7be |
284 | qw/_connect_info _dbh _sql_maker _sql_maker_opts _conn_pid _conn_tid |
285 | debug debugobj cursor on_connect_do transaction_depth/); |
8091aa91 |
286 | |
b327f988 |
287 | =head1 NAME |
288 | |
289 | DBIx::Class::Storage::DBI - DBI storage handler |
290 | |
291 | =head1 SYNOPSIS |
292 | |
293 | =head1 DESCRIPTION |
294 | |
295 | This class represents the connection to the database |
296 | |
297 | =head1 METHODS |
298 | |
9b83fccd |
299 | =head2 new |
300 | |
301 | =cut |
302 | |
8b445e33 |
303 | sub new { |
04786a4c |
304 | my $new = {}; |
305 | bless $new, (ref $_[0] || $_[0]); |
306 | |
28927b50 |
307 | $new->cursor("DBIx::Class::Storage::DBI::Cursor"); |
d79f59b9 |
308 | $new->transaction_depth(0); |
4c248161 |
309 | |
310 | $new->debugobj(new DBIx::Class::Storage::Statistics()); |
311 | |
312 | my $fh; |
6fe735fa |
313 | |
314 | my $debug_env = $ENV{DBIX_CLASS_STORAGE_DBI_DEBUG} |
315 | || $ENV{DBIC_TRACE}; |
316 | |
317 | if (defined($debug_env) && ($debug_env =~ /=(.+)$/)) { |
4c248161 |
318 | $fh = IO::File->new($1, 'w') |
bc0c9800 |
319 | or $new->throw_exception("Cannot open trace file $1"); |
92b858c9 |
320 | } else { |
4c248161 |
321 | $fh = IO::File->new('>&STDERR'); |
92b858c9 |
322 | } |
004d31fb |
323 | $new->debugfh($fh); |
6fe735fa |
324 | $new->debug(1) if $debug_env; |
2cc3a7be |
325 | $new->_sql_maker_opts({}); |
223b8fe3 |
326 | return $new; |
8b445e33 |
327 | } |
328 | |
9b83fccd |
329 | =head2 throw_exception |
330 | |
331 | Throws an exception - croaks. |
332 | |
333 | =cut |
334 | |
1c339d71 |
335 | sub throw_exception { |
336 | my ($self, $msg) = @_; |
3b042bcb |
337 | croak($msg); |
1c339d71 |
338 | } |
339 | |
1b45b01e |
340 | =head2 connect_info |
341 | |
bb4f246d |
342 | The arguments of C<connect_info> are always a single array reference. |
1b45b01e |
343 | |
bb4f246d |
344 | This is normally accessed via L<DBIx::Class::Schema/connection>, which |
345 | encapsulates its argument list in an arrayref before calling |
346 | C<connect_info> here. |
1b45b01e |
347 | |
bb4f246d |
348 | The arrayref can either contain the same set of arguments one would |
349 | normally pass to L<DBI/connect>, or a lone code reference which returns |
350 | a connected database handle. |
d7c4c15c |
351 | |
2cc3a7be |
352 | In either case, if the final argument in your connect_info happens |
353 | to be a hashref, C<connect_info> will look there for several |
354 | connection-specific options: |
355 | |
356 | =over 4 |
357 | |
358 | =item on_connect_do |
359 | |
360 | This can be set to an arrayref of literal sql statements, which will |
361 | be executed immediately after making the connection to the database |
362 | every time we [re-]connect. |
363 | |
364 | =item limit_dialect |
365 | |
366 | Sets the limit dialect. This is useful for JDBC-bridge among others |
367 | where the remote SQL-dialect cannot be determined by the name of the |
368 | driver alone. |
369 | |
370 | =item quote_char |
d7c4c15c |
371 | |
2cc3a7be |
372 | Specifies what characters to use to quote table and column names. If |
373 | you use this you will want to specify L<name_sep> as well. |
374 | |
375 | quote_char expects either a single character, in which case is it is placed |
376 | on either side of the table/column, or an arrayref of length 2 in which case the |
377 | table/column name is placed between the elements. |
378 | |
379 | For example under MySQL you'd use C<quote_char =E<gt> '`'>, and user SQL Server you'd |
380 | use C<quote_char =E<gt> [qw/[ ]/]>. |
381 | |
382 | =item name_sep |
383 | |
384 | This only needs to be used in conjunction with L<quote_char>, and is used to |
385 | specify the charecter that seperates elements (schemas, tables, columns) from |
386 | each other. In most cases this is simply a C<.>. |
387 | |
388 | =back |
389 | |
390 | These options can be mixed in with your other L<DBI> connection attributes, |
391 | or placed in a seperate hashref after all other normal L<DBI> connection |
392 | arguments. |
393 | |
394 | Every time C<connect_info> is invoked, any previous settings for |
395 | these options will be cleared before setting the new ones, regardless of |
396 | whether any options are specified in the new C<connect_info>. |
397 | |
398 | Examples: |
399 | |
400 | # Simple SQLite connection |
bb4f246d |
401 | ->connect_info([ 'dbi:SQLite:./foo.db' ]); |
6789ebe3 |
402 | |
2cc3a7be |
403 | # Connect via subref |
bb4f246d |
404 | ->connect_info([ sub { DBI->connect(...) } ]); |
6789ebe3 |
405 | |
2cc3a7be |
406 | # A bit more complicated |
bb4f246d |
407 | ->connect_info( |
408 | [ |
409 | 'dbi:Pg:dbname=foo', |
410 | 'postgres', |
411 | 'my_pg_password', |
412 | { AutoCommit => 0 }, |
2cc3a7be |
413 | { quote_char => q{"}, name_sep => q{.} }, |
414 | ] |
415 | ); |
416 | |
417 | # Equivalent to the previous example |
418 | ->connect_info( |
419 | [ |
420 | 'dbi:Pg:dbname=foo', |
421 | 'postgres', |
422 | 'my_pg_password', |
423 | { AutoCommit => 0, quote_char => q{"}, name_sep => q{.} }, |
bb4f246d |
424 | ] |
425 | ); |
6789ebe3 |
426 | |
2cc3a7be |
427 | # Subref + DBIC-specific connection options |
bb4f246d |
428 | ->connect_info( |
429 | [ |
430 | sub { DBI->connect(...) }, |
2cc3a7be |
431 | { |
432 | quote_char => q{`}, |
433 | name_sep => q{@}, |
434 | on_connect_do => ['SET search_path TO myschema,otherschema,public'], |
435 | }, |
bb4f246d |
436 | ] |
437 | ); |
6789ebe3 |
438 | |
bb4f246d |
439 | =head2 on_connect_do |
6789ebe3 |
440 | |
2cc3a7be |
441 | This method is deprecated in favor of setting via L</connect_info>. |
6789ebe3 |
442 | |
92b858c9 |
443 | =head2 debug |
444 | |
4c248161 |
445 | Causes SQL trace information to be emitted on the C<debugobj> object. |
446 | (or C<STDERR> if C<debugobj> has not specifically been set). |
92b858c9 |
447 | |
f7a90adc |
448 | This is the equivalent to setting L</DBIC_TRACE> in your |
449 | shell environment. |
450 | |
92b858c9 |
451 | =head2 debugfh |
452 | |
4c248161 |
453 | Set or retrieve the filehandle used for trace/debug output. This should be |
454 | an IO::Handle compatible ojbect (only the C<print> method is used. Initially |
455 | set to be STDERR - although see information on the |
6fe735fa |
456 | L<DBIC_TRACE> environment variable. |
92b858c9 |
457 | |
004d31fb |
458 | =cut |
459 | |
460 | sub debugfh { |
461 | my $self = shift; |
462 | |
463 | if ($self->debugobj->can('debugfh')) { |
464 | return $self->debugobj->debugfh(@_); |
465 | } |
466 | } |
467 | |
4c248161 |
468 | =head2 debugobj |
469 | |
470 | Sets or retrieves the object used for metric collection. Defaults to an instance |
471 | of L<DBIx::Class::Storage::Statistics> that is campatible with the original |
472 | method of using a coderef as a callback. See the aforementioned Statistics |
473 | class for more information. |
474 | |
486ad69b |
475 | =head2 debugcb |
476 | |
477 | Sets a callback to be executed each time a statement is run; takes a sub |
4c248161 |
478 | reference. Callback is executed as $sub->($op, $info) where $op is |
479 | SELECT/INSERT/UPDATE/DELETE and $info is what would normally be printed. |
486ad69b |
480 | |
4c248161 |
481 | See L<debugobj> for a better way. |
d7c4c15c |
482 | |
4c248161 |
483 | =cut |
004d31fb |
484 | |
486ad69b |
485 | sub debugcb { |
004d31fb |
486 | my $self = shift; |
4c248161 |
487 | |
004d31fb |
488 | if ($self->debugobj->can('callback')) { |
489 | return $self->debugobj->callback(@_); |
4c248161 |
490 | } |
486ad69b |
491 | } |
492 | |
9b83fccd |
493 | =head2 disconnect |
494 | |
495 | Disconnect the L<DBI> handle, performing a rollback first if the |
496 | database is not in C<AutoCommit> mode. |
497 | |
498 | =cut |
499 | |
412db1f4 |
500 | sub disconnect { |
501 | my ($self) = @_; |
502 | |
92925617 |
503 | if( $self->connected ) { |
504 | $self->_dbh->rollback unless $self->_dbh->{AutoCommit}; |
505 | $self->_dbh->disconnect; |
506 | $self->_dbh(undef); |
507 | } |
412db1f4 |
508 | } |
509 | |
9b83fccd |
510 | =head2 connected |
511 | |
512 | Check if the L<DBI> handle is connected. Returns true if the handle |
513 | is connected. |
514 | |
515 | =cut |
516 | |
517 | sub connected { my ($self) = @_; |
412db1f4 |
518 | |
1346e22d |
519 | if(my $dbh = $self->_dbh) { |
520 | if(defined $self->_conn_tid && $self->_conn_tid != threads->tid) { |
1346e22d |
521 | return $self->_dbh(undef); |
522 | } |
523 | elsif($self->_conn_pid != $$) { |
524 | $self->_dbh->{InactiveDestroy} = 1; |
2cc3a7be |
525 | return $self->_dbh(undef); |
1346e22d |
526 | } |
527 | return ($dbh->FETCH('Active') && $dbh->ping); |
528 | } |
529 | |
530 | return 0; |
412db1f4 |
531 | } |
532 | |
9b83fccd |
533 | =head2 ensure_connected |
534 | |
535 | Check whether the database handle is connected - if not then make a |
536 | connection. |
537 | |
538 | =cut |
539 | |
412db1f4 |
540 | sub ensure_connected { |
541 | my ($self) = @_; |
542 | |
543 | unless ($self->connected) { |
8b445e33 |
544 | $self->_populate_dbh; |
545 | } |
412db1f4 |
546 | } |
547 | |
c235bbae |
548 | =head2 dbh |
549 | |
550 | Returns the dbh - a data base handle of class L<DBI>. |
551 | |
552 | =cut |
553 | |
412db1f4 |
554 | sub dbh { |
555 | my ($self) = @_; |
556 | |
557 | $self->ensure_connected; |
8b445e33 |
558 | return $self->_dbh; |
559 | } |
560 | |
f1f56aad |
561 | sub _sql_maker_args { |
562 | my ($self) = @_; |
563 | |
2cc3a7be |
564 | return ( limit_dialect => $self->dbh, %{$self->_sql_maker_opts} ); |
f1f56aad |
565 | } |
566 | |
9b83fccd |
567 | =head2 sql_maker |
568 | |
569 | Returns a C<sql_maker> object - normally an object of class |
570 | C<DBIC::SQL::Abstract>. |
571 | |
572 | =cut |
573 | |
48c69e7c |
574 | sub sql_maker { |
575 | my ($self) = @_; |
fdc1c3d0 |
576 | unless ($self->_sql_maker) { |
f1f56aad |
577 | $self->_sql_maker(new DBIC::SQL::Abstract( $self->_sql_maker_args )); |
48c69e7c |
578 | } |
579 | return $self->_sql_maker; |
580 | } |
581 | |
1b45b01e |
582 | sub connect_info { |
bb4f246d |
583 | my ($self, $info_arg) = @_; |
584 | |
585 | if($info_arg) { |
2cc3a7be |
586 | # Kill sql_maker/_sql_maker_opts, so we get a fresh one with only |
587 | # the new set of options |
588 | $self->_sql_maker(undef); |
589 | $self->_sql_maker_opts({}); |
590 | |
bb4f246d |
591 | my $info = [ @$info_arg ]; # copy because we can alter it |
592 | my $last_info = $info->[-1]; |
593 | if(ref $last_info eq 'HASH') { |
2cc3a7be |
594 | if(my $on_connect_do = delete $last_info->{on_connect_do}) { |
bb4f246d |
595 | $self->on_connect_do($on_connect_do); |
596 | } |
597 | for my $sql_maker_opt (qw/limit_dialect quote_char name_sep/) { |
2cc3a7be |
598 | if(my $opt_val = delete $last_info->{$sql_maker_opt}) { |
599 | $self->_sql_maker_opts->{$sql_maker_opt} = $opt_val; |
1b45b01e |
600 | } |
bb4f246d |
601 | } |
1b45b01e |
602 | |
2cc3a7be |
603 | # Get rid of any trailing empty hashref |
604 | pop(@$info) if !keys %$last_info; |
1b45b01e |
605 | } |
606 | |
bb4f246d |
607 | $self->_connect_info($info); |
608 | } |
609 | |
610 | $self->_connect_info; |
1b45b01e |
611 | } |
612 | |
8b445e33 |
613 | sub _populate_dbh { |
614 | my ($self) = @_; |
1b45b01e |
615 | my @info = @{$self->_connect_info || []}; |
8b445e33 |
616 | $self->_dbh($self->_connect(@info)); |
2fd24e78 |
617 | |
618 | if(ref $self eq 'DBIx::Class::Storage::DBI') { |
619 | my $driver = $self->_dbh->{Driver}->{Name}; |
efe6365b |
620 | if ($self->load_optional_class("DBIx::Class::Storage::DBI::${driver}")) { |
2fd24e78 |
621 | bless $self, "DBIx::Class::Storage::DBI::${driver}"; |
622 | $self->_rebless() if $self->can('_rebless'); |
623 | } |
843f8ecd |
624 | } |
2fd24e78 |
625 | |
d7c4c15c |
626 | # if on-connect sql statements are given execute them |
627 | foreach my $sql_statement (@{$self->on_connect_do || []}) { |
4c248161 |
628 | $self->debugobj->query_start($sql_statement) if $self->debug(); |
d7c4c15c |
629 | $self->_dbh->do($sql_statement); |
4c248161 |
630 | $self->debugobj->query_end($sql_statement) if $self->debug(); |
d7c4c15c |
631 | } |
5ef3e508 |
632 | |
1346e22d |
633 | $self->_conn_pid($$); |
634 | $self->_conn_tid(threads->tid) if $INC{'threads.pm'}; |
8b445e33 |
635 | } |
636 | |
637 | sub _connect { |
638 | my ($self, @info) = @_; |
5ef3e508 |
639 | |
9d31f7dc |
640 | $self->throw_exception("You failed to provide any connection info") |
641 | if !@info; |
642 | |
90ec6cad |
643 | my ($old_connect_via, $dbh); |
644 | |
5ef3e508 |
645 | if ($INC{'Apache/DBI.pm'} && $ENV{MOD_PERL}) { |
90ec6cad |
646 | $old_connect_via = $DBI::connect_via; |
5ef3e508 |
647 | $DBI::connect_via = 'connect'; |
5ef3e508 |
648 | } |
649 | |
75db246c |
650 | eval { |
bb4f246d |
651 | $dbh = ref $info[0] eq 'CODE' |
652 | ? &{$info[0]} |
653 | : DBI->connect(@info); |
75db246c |
654 | }; |
90ec6cad |
655 | |
656 | $DBI::connect_via = $old_connect_via if $old_connect_via; |
657 | |
75db246c |
658 | if (!$dbh || $@) { |
659 | $self->throw_exception("DBI Connection failed: " . ($@ || $DBI::errstr)); |
660 | } |
90ec6cad |
661 | |
e571e823 |
662 | $dbh; |
8b445e33 |
663 | } |
664 | |
8091aa91 |
665 | =head2 txn_begin |
8b445e33 |
666 | |
8091aa91 |
667 | Calls begin_work on the current dbh. |
8b445e33 |
668 | |
181a28f4 |
669 | See L<DBIx::Class::Schema> for the txn_do() method, which allows for |
670 | an entire code block to be executed transactionally. |
671 | |
8b445e33 |
672 | =cut |
673 | |
8091aa91 |
674 | sub txn_begin { |
d79f59b9 |
675 | my $self = shift; |
a32e8402 |
676 | if ($self->{transaction_depth}++ == 0) { |
677 | my $dbh = $self->dbh; |
678 | if ($dbh->{AutoCommit}) { |
4c248161 |
679 | $self->debugobj->txn_begin() |
a32e8402 |
680 | if ($self->debug); |
681 | $dbh->begin_work; |
682 | } |
986e4fca |
683 | } |
8091aa91 |
684 | } |
8b445e33 |
685 | |
8091aa91 |
686 | =head2 txn_commit |
8b445e33 |
687 | |
8091aa91 |
688 | Issues a commit against the current dbh. |
8b445e33 |
689 | |
8091aa91 |
690 | =cut |
691 | |
692 | sub txn_commit { |
d79f59b9 |
693 | my $self = shift; |
7c5a8b60 |
694 | my $dbh = $self->dbh; |
d79f59b9 |
695 | if ($self->{transaction_depth} == 0) { |
a32e8402 |
696 | unless ($dbh->{AutoCommit}) { |
4c248161 |
697 | $self->debugobj->txn_commit() |
986e4fca |
698 | if ($self->debug); |
a32e8402 |
699 | $dbh->commit; |
986e4fca |
700 | } |
8091aa91 |
701 | } |
702 | else { |
986e4fca |
703 | if (--$self->{transaction_depth} == 0) { |
4c248161 |
704 | $self->debugobj->txn_commit() |
986e4fca |
705 | if ($self->debug); |
7c5a8b60 |
706 | $dbh->commit; |
986e4fca |
707 | } |
8091aa91 |
708 | } |
709 | } |
710 | |
711 | =head2 txn_rollback |
712 | |
181a28f4 |
713 | Issues a rollback against the current dbh. A nested rollback will |
714 | throw a L<DBIx::Class::Storage::NESTED_ROLLBACK_EXCEPTION> exception, |
715 | which allows the rollback to propagate to the outermost transaction. |
8b445e33 |
716 | |
717 | =cut |
718 | |
8091aa91 |
719 | sub txn_rollback { |
d79f59b9 |
720 | my $self = shift; |
a62cf8d4 |
721 | |
722 | eval { |
7c5a8b60 |
723 | my $dbh = $self->dbh; |
a62cf8d4 |
724 | if ($self->{transaction_depth} == 0) { |
a32e8402 |
725 | unless ($dbh->{AutoCommit}) { |
4c248161 |
726 | $self->debugobj->txn_rollback() |
986e4fca |
727 | if ($self->debug); |
a32e8402 |
728 | $dbh->rollback; |
986e4fca |
729 | } |
a62cf8d4 |
730 | } |
731 | else { |
986e4fca |
732 | if (--$self->{transaction_depth} == 0) { |
4c248161 |
733 | $self->debugobj->txn_rollback() |
986e4fca |
734 | if ($self->debug); |
7c5a8b60 |
735 | $dbh->rollback; |
986e4fca |
736 | } |
737 | else { |
1346e22d |
738 | die DBIx::Class::Storage::NESTED_ROLLBACK_EXCEPTION->new; |
986e4fca |
739 | } |
a62cf8d4 |
740 | } |
741 | }; |
742 | |
743 | if ($@) { |
744 | my $error = $@; |
745 | my $exception_class = "DBIx::Class::Storage::NESTED_ROLLBACK_EXCEPTION"; |
746 | $error =~ /$exception_class/ and $self->throw_exception($error); |
747 | $self->{transaction_depth} = 0; # ensure that a failed rollback |
748 | $self->throw_exception($error); # resets the transaction depth |
8091aa91 |
749 | } |
750 | } |
8b445e33 |
751 | |
223b8fe3 |
752 | sub _execute { |
753 | my ($self, $op, $extra_bind, $ident, @args) = @_; |
754 | my ($sql, @bind) = $self->sql_maker->$op($ident, @args); |
944f30bf |
755 | unshift(@bind, @$extra_bind) if $extra_bind; |
f59ffc79 |
756 | if ($self->debug) { |
e673f011 |
757 | my @debug_bind = map { defined $_ ? qq{'$_'} : q{'NULL'} } @bind; |
4c248161 |
758 | $self->debugobj->query_start($sql, @debug_bind); |
f59ffc79 |
759 | } |
75db246c |
760 | my $sth = eval { $self->sth($sql,$op) }; |
761 | |
762 | if (!$sth || $@) { |
ec0ff6f6 |
763 | $self->throw_exception( |
764 | 'no sth generated via sql (' . ($@ || $self->_dbh->errstr) . "): $sql" |
765 | ); |
75db246c |
766 | } |
438adc0e |
767 | @bind = map { ref $_ ? ''.$_ : $_ } @bind; # stringify args |
701da8c4 |
768 | my $rv; |
75d07914 |
769 | if ($sth) { |
4c248161 |
770 | my $time = time(); |
95dad7e2 |
771 | $rv = eval { $sth->execute(@bind) }; |
772 | |
773 | if ($@ || !$rv) { |
774 | $self->throw_exception("Error executing '$sql': ".($@ || $sth->errstr)); |
775 | } |
75d07914 |
776 | } else { |
1c339d71 |
777 | $self->throw_exception("'$sql' did not generate a statement."); |
701da8c4 |
778 | } |
4c248161 |
779 | if ($self->debug) { |
780 | my @debug_bind = map { defined $_ ? qq{`$_'} : q{`NULL'} } @bind; |
781 | $self->debugobj->query_end($sql, @debug_bind); |
782 | } |
223b8fe3 |
783 | return (wantarray ? ($rv, $sth, @bind) : $rv); |
784 | } |
785 | |
8b445e33 |
786 | sub insert { |
787 | my ($self, $ident, $to_insert) = @_; |
bc0c9800 |
788 | $self->throw_exception( |
789 | "Couldn't insert ".join(', ', |
790 | map "$_ => $to_insert->{$_}", keys %$to_insert |
791 | )." into ${ident}" |
792 | ) unless ($self->_execute('insert' => [], $ident, $to_insert)); |
8b445e33 |
793 | return $to_insert; |
794 | } |
795 | |
796 | sub update { |
223b8fe3 |
797 | return shift->_execute('update' => [], @_); |
8b445e33 |
798 | } |
799 | |
800 | sub delete { |
223b8fe3 |
801 | return shift->_execute('delete' => [], @_); |
8b445e33 |
802 | } |
803 | |
de705b51 |
804 | sub _select { |
8b445e33 |
805 | my ($self, $ident, $select, $condition, $attrs) = @_; |
223b8fe3 |
806 | my $order = $attrs->{order_by}; |
807 | if (ref $condition eq 'SCALAR') { |
808 | $order = $1 if $$condition =~ s/ORDER BY (.*)$//i; |
809 | } |
8839560b |
810 | if (exists $attrs->{group_by} || $attrs->{having}) { |
bc0c9800 |
811 | $order = { |
812 | group_by => $attrs->{group_by}, |
813 | having => $attrs->{having}, |
814 | ($order ? (order_by => $order) : ()) |
815 | }; |
54540863 |
816 | } |
5c91499f |
817 | my @args = ('select', $attrs->{bind}, $ident, $select, $condition, $order); |
9229f20a |
818 | if ($attrs->{software_limit} || |
819 | $self->sql_maker->_default_limit_syntax eq "GenericSubQ") { |
820 | $attrs->{software_limit} = 1; |
5c91499f |
821 | } else { |
0823196c |
822 | $self->throw_exception("rows attribute must be positive if present") |
823 | if (defined($attrs->{rows}) && !($attrs->{rows} > 0)); |
5c91499f |
824 | push @args, $attrs->{rows}, $attrs->{offset}; |
825 | } |
de705b51 |
826 | return $self->_execute(@args); |
827 | } |
828 | |
9b83fccd |
829 | =head2 select |
830 | |
d3b0e369 |
831 | =over 4 |
832 | |
833 | =item Arguments: $ident, $select, $condition, $attrs |
834 | |
835 | =back |
836 | |
9b83fccd |
837 | Handle a SQL select statement. |
838 | |
839 | =cut |
840 | |
de705b51 |
841 | sub select { |
842 | my $self = shift; |
843 | my ($ident, $select, $condition, $attrs) = @_; |
cb5f2eea |
844 | return $self->cursor->new($self, \@_, $attrs); |
8b445e33 |
845 | } |
846 | |
9b83fccd |
847 | =head2 select_single |
848 | |
849 | Performs a select, fetch and return of data - handles a single row |
850 | only. |
851 | |
852 | =cut |
853 | |
6157db4f |
854 | # Need to call finish() to work round broken DBDs |
855 | |
1a14aa3f |
856 | sub select_single { |
de705b51 |
857 | my $self = shift; |
858 | my ($rv, $sth, @bind) = $self->_select(@_); |
6157db4f |
859 | my @row = $sth->fetchrow_array; |
860 | $sth->finish(); |
861 | return @row; |
1a14aa3f |
862 | } |
863 | |
9b83fccd |
864 | =head2 sth |
865 | |
d3b0e369 |
866 | =over 4 |
867 | |
868 | =item Arguments: $sql |
869 | |
870 | =back |
871 | |
9b83fccd |
872 | Returns a L<DBI> sth (statement handle) for the supplied SQL. |
873 | |
874 | =cut |
875 | |
8b445e33 |
876 | sub sth { |
cb5f2eea |
877 | my ($self, $sql) = @_; |
91fa659e |
878 | # 3 is the if_active parameter which avoids active sth re-use |
879 | return $self->dbh->prepare_cached($sql, {}, 3); |
8b445e33 |
880 | } |
881 | |
a953d8d9 |
882 | =head2 columns_info_for |
883 | |
d3b0e369 |
884 | Returns database type info for a given table column. |
a953d8d9 |
885 | |
886 | =cut |
887 | |
888 | sub columns_info_for { |
0d67fe74 |
889 | my ($self, $table) = @_; |
bfe10d87 |
890 | |
a32e8402 |
891 | my $dbh = $self->dbh; |
892 | |
893 | if ($dbh->can('column_info')) { |
a953d8d9 |
894 | my %result; |
955f1590 |
895 | local $dbh->{RaiseError} = 1; |
896 | local $dbh->{PrintError} = 0; |
0d67fe74 |
897 | eval { |
4d272ce5 |
898 | my ($schema,$tab) = $table =~ /^(.+?)\.(.+)$/ ? ($1,$2) : (undef,$table); |
899 | my $sth = $dbh->column_info( undef,$schema, $tab, '%' ); |
0d67fe74 |
900 | $sth->execute(); |
099049b5 |
901 | |
0d67fe74 |
902 | while ( my $info = $sth->fetchrow_hashref() ){ |
bfe10d87 |
903 | my %column_info; |
0d67fe74 |
904 | $column_info{data_type} = $info->{TYPE_NAME}; |
905 | $column_info{size} = $info->{COLUMN_SIZE}; |
906 | $column_info{is_nullable} = $info->{NULLABLE} ? 1 : 0; |
907 | $column_info{default_value} = $info->{COLUMN_DEF}; |
0b88a5bb |
908 | my $col_name = $info->{COLUMN_NAME}; |
909 | $col_name =~ s/^\"(.*)\"$/$1/; |
0d67fe74 |
910 | |
0b88a5bb |
911 | $result{$col_name} = \%column_info; |
0d67fe74 |
912 | } |
913 | }; |
093fc7a6 |
914 | return \%result if !$@ && scalar keys %result; |
0d67fe74 |
915 | } |
916 | |
917 | my %result; |
a32e8402 |
918 | my $sth = $dbh->prepare("SELECT * FROM $table WHERE 1=0"); |
0d67fe74 |
919 | $sth->execute; |
920 | my @columns = @{$sth->{NAME_lc}}; |
921 | for my $i ( 0 .. $#columns ){ |
922 | my %column_info; |
923 | my $type_num = $sth->{TYPE}->[$i]; |
924 | my $type_name; |
a32e8402 |
925 | if(defined $type_num && $dbh->can('type_info')) { |
926 | my $type_info = $dbh->type_info($type_num); |
0d67fe74 |
927 | $type_name = $type_info->{TYPE_NAME} if $type_info; |
a953d8d9 |
928 | } |
0d67fe74 |
929 | $column_info{data_type} = $type_name ? $type_name : $type_num; |
930 | $column_info{size} = $sth->{PRECISION}->[$i]; |
931 | $column_info{is_nullable} = $sth->{NULLABLE}->[$i] ? 1 : 0; |
932 | |
933 | if ($column_info{data_type} =~ m/^(.*?)\((.*?)\)$/) { |
934 | $column_info{data_type} = $1; |
935 | $column_info{size} = $2; |
936 | } |
937 | |
938 | $result{$columns[$i]} = \%column_info; |
939 | } |
bfe10d87 |
940 | |
0d67fe74 |
941 | return \%result; |
a953d8d9 |
942 | } |
943 | |
9b83fccd |
944 | =head2 last_insert_id |
945 | |
946 | Return the row id of the last insert. |
947 | |
948 | =cut |
949 | |
843f8ecd |
950 | sub last_insert_id { |
951 | my ($self, $row) = @_; |
952 | |
953 | return $self->dbh->func('last_insert_rowid'); |
954 | |
955 | } |
956 | |
9b83fccd |
957 | =head2 sqlt_type |
958 | |
959 | Returns the database driver name. |
960 | |
961 | =cut |
962 | |
90ec6cad |
963 | sub sqlt_type { shift->dbh->{Driver}->{Name} } |
1c339d71 |
964 | |
9b83fccd |
965 | =head2 create_ddl_dir (EXPERIMENTAL) |
966 | |
967 | =over 4 |
968 | |
969 | =item Arguments: $schema \@databases, $version, $directory, $sqlt_args |
970 | |
971 | =back |
972 | |
d3b0e369 |
973 | Creates a SQL file based on the Schema, for each of the specified |
9b83fccd |
974 | database types, in the given directory. |
975 | |
976 | Note that this feature is currently EXPERIMENTAL and may not work correctly |
977 | across all databases, or fully handle complex relationships. |
978 | |
979 | =cut |
980 | |
e673f011 |
981 | sub create_ddl_dir |
982 | { |
983 | my ($self, $schema, $databases, $version, $dir, $sqltargs) = @_; |
984 | |
985 | if(!$dir || !-d $dir) |
986 | { |
987 | warn "No directory given, using ./\n"; |
988 | $dir = "./"; |
989 | } |
990 | $databases ||= ['MySQL', 'SQLite', 'PostgreSQL']; |
991 | $databases = [ $databases ] if(ref($databases) ne 'ARRAY'); |
992 | $version ||= $schema->VERSION || '1.x'; |
9e7b9292 |
993 | $sqltargs = { ( add_drop_table => 1 ), %{$sqltargs || {}} }; |
e673f011 |
994 | |
1c339d71 |
995 | eval "use SQL::Translator"; |
996 | $self->throw_exception("Can't deploy without SQL::Translator: $@") if $@; |
e673f011 |
997 | |
9e7b9292 |
998 | my $sqlt = SQL::Translator->new($sqltargs); |
e673f011 |
999 | foreach my $db (@$databases) |
1000 | { |
1001 | $sqlt->reset(); |
1002 | $sqlt->parser('SQL::Translator::Parser::DBIx::Class'); |
1003 | # $sqlt->parser_args({'DBIx::Class' => $schema); |
1004 | $sqlt->data($schema); |
1005 | $sqlt->producer($db); |
1006 | |
1007 | my $file; |
1008 | my $filename = $schema->ddl_filename($db, $dir, $version); |
1009 | if(-e $filename) |
1010 | { |
1011 | $self->throw_exception("$filename already exists, skipping $db"); |
1012 | next; |
1013 | } |
1014 | open($file, ">$filename") |
1015 | or $self->throw_exception("Can't open $filename for writing ($!)"); |
1016 | my $output = $sqlt->translate; |
1017 | #use Data::Dumper; |
1018 | # print join(":", keys %{$schema->source_registrations}); |
1019 | # print Dumper($sqlt->schema); |
1020 | if(!$output) |
1021 | { |
1022 | $self->throw_exception("Failed to translate to $db. (" . $sqlt->error . ")"); |
1023 | next; |
1024 | } |
1025 | print $file $output; |
1026 | close($file); |
1027 | } |
1028 | |
1029 | } |
1030 | |
9b83fccd |
1031 | =head2 deployment_statements |
1032 | |
d3b0e369 |
1033 | =over 4 |
1034 | |
1035 | =item Arguments: $schema, $type, $version, $directory, $sqlt_args |
1036 | |
1037 | =back |
1038 | |
1039 | Returns the statements used by L</deploy> and L<DBIx::Class::Schema/deploy>. |
1040 | The database driver name is given by C<$type>, though the value from |
1041 | L</sqlt_type> is used if it is not specified. |
1042 | |
1043 | C<$directory> is used to return statements from files in a previously created |
1044 | L</create_ddl_dir> directory and is optional. The filenames are constructed |
1045 | from L<DBIx::Class::Schema/ddl_filename>, the schema name and the C<$version>. |
1046 | |
1047 | If no C<$directory> is specified then the statements are constructed on the |
1048 | fly using L<SQL::Translator> and C<$version> is ignored. |
1049 | |
1050 | See L<SQL::Translator/METHODS> for a list of values for C<$sqlt_args>. |
9b83fccd |
1051 | |
1052 | =cut |
1053 | |
e673f011 |
1054 | sub deployment_statements { |
1055 | my ($self, $schema, $type, $version, $dir, $sqltargs) = @_; |
915919c5 |
1056 | # Need to be connected to get the correct sqlt_type |
c377d939 |
1057 | $self->ensure_connected() unless $type; |
e673f011 |
1058 | $type ||= $self->sqlt_type; |
1059 | $version ||= $schema->VERSION || '1.x'; |
1060 | $dir ||= './'; |
0382d607 |
1061 | eval "use SQL::Translator"; |
1062 | if(!$@) |
1063 | { |
1064 | eval "use SQL::Translator::Parser::DBIx::Class;"; |
1065 | $self->throw_exception($@) if $@; |
1066 | eval "use SQL::Translator::Producer::${type};"; |
1067 | $self->throw_exception($@) if $@; |
1068 | my $tr = SQL::Translator->new(%$sqltargs); |
1069 | SQL::Translator::Parser::DBIx::Class::parse( $tr, $schema ); |
1070 | return "SQL::Translator::Producer::${type}"->can('produce')->($tr); |
1071 | } |
e673f011 |
1072 | |
1073 | my $filename = $schema->ddl_filename($type, $dir, $version); |
1074 | if(!-f $filename) |
1075 | { |
0382d607 |
1076 | # $schema->create_ddl_dir([ $type ], $version, $dir, $sqltargs); |
1077 | $self->throw_exception("No SQL::Translator, and no Schema file found, aborting deploy"); |
1078 | return; |
e673f011 |
1079 | } |
1080 | my $file; |
1081 | open($file, "<$filename") |
1082 | or $self->throw_exception("Can't open $filename ($!)"); |
1083 | my @rows = <$file>; |
1084 | close($file); |
1085 | |
1086 | return join('', @rows); |
1087 | |
1c339d71 |
1088 | } |
843f8ecd |
1089 | |
9b83fccd |
1090 | =head2 deploy |
1091 | |
1092 | Sends the appropriate statements to create or modify tables to the |
1093 | db. This would normally be called through |
1094 | L<DBIx::Class::Schema/deploy>. |
1095 | |
1096 | =cut |
1097 | |
1c339d71 |
1098 | sub deploy { |
260129d8 |
1099 | my ($self, $schema, $type, $sqltargs, $dir) = @_; |
1100 | foreach my $statement ( $self->deployment_statements($schema, $type, undef, $dir, { no_comments => 1, %{ $sqltargs || {} } } ) ) { |
e4fe9ba3 |
1101 | for ( split(";\n", $statement)) { |
e673f011 |
1102 | next if($_ =~ /^--/); |
1103 | next if(!$_); |
1104 | # next if($_ =~ /^DROP/m); |
1105 | next if($_ =~ /^BEGIN TRANSACTION/m); |
1106 | next if($_ =~ /^COMMIT/m); |
b489f68a |
1107 | next if $_ =~ /^\s+$/; # skip whitespace only |
bdea30e3 |
1108 | $self->debugobj->query_start($_) if $self->debug; |
e4fe9ba3 |
1109 | $self->dbh->do($_) or warn "SQL was:\n $_"; |
4c248161 |
1110 | $self->debugobj->query_end($_) if $self->debug; |
e4fe9ba3 |
1111 | } |
75d07914 |
1112 | } |
1c339d71 |
1113 | } |
843f8ecd |
1114 | |
9b83fccd |
1115 | =head2 datetime_parser |
1116 | |
1117 | Returns the datetime parser class |
1118 | |
1119 | =cut |
1120 | |
f86fcf0d |
1121 | sub datetime_parser { |
1122 | my $self = shift; |
1123 | return $self->{datetime_parser} ||= $self->build_datetime_parser(@_); |
1124 | } |
1125 | |
9b83fccd |
1126 | =head2 datetime_parser_type |
1127 | |
1128 | Defines (returns) the datetime parser class - currently hardwired to |
1129 | L<DateTime::Format::MySQL> |
1130 | |
1131 | =cut |
1132 | |
f86fcf0d |
1133 | sub datetime_parser_type { "DateTime::Format::MySQL"; } |
1134 | |
9b83fccd |
1135 | =head2 build_datetime_parser |
1136 | |
1137 | See L</datetime_parser> |
1138 | |
1139 | =cut |
1140 | |
f86fcf0d |
1141 | sub build_datetime_parser { |
1142 | my $self = shift; |
1143 | my $type = $self->datetime_parser_type(@_); |
1144 | eval "use ${type}"; |
1145 | $self->throw_exception("Couldn't load ${type}: $@") if $@; |
1146 | return $type; |
1147 | } |
1148 | |
89d794d4 |
1149 | sub DESTROY { |
1150 | # NOTE: if there's a merge conflict here when -current is pushed |
1151 | # back to trunk, take -current's version and ignore this trunk one :) |
1152 | my $self = shift; |
1153 | |
1154 | if($self->_dbh && $self->_conn_pid != $$) { |
1155 | $self->_dbh->{InactiveDestroy} = 1; |
1156 | } |
1157 | |
1158 | $self->_dbh(undef); |
1159 | } |
92925617 |
1160 | |
8b445e33 |
1161 | 1; |
1162 | |
9b83fccd |
1163 | =head1 SQL METHODS |
1164 | |
1165 | The module defines a set of methods within the DBIC::SQL::Abstract |
1166 | namespace. These build on L<SQL::Abstract::Limit> to provide the |
1167 | SQL query functions. |
1168 | |
1169 | The following methods are extended:- |
1170 | |
1171 | =over 4 |
1172 | |
1173 | =item delete |
1174 | |
1175 | =item insert |
1176 | |
1177 | =item select |
1178 | |
1179 | =item update |
1180 | |
1181 | =item limit_dialect |
1182 | |
2cc3a7be |
1183 | See L</connect_info> for details. |
1184 | For setting, this method is deprecated in favor of L</connect_info>. |
bb4f246d |
1185 | |
9b83fccd |
1186 | =item quote_char |
1187 | |
2cc3a7be |
1188 | See L</connect_info> for details. |
1189 | For setting, this method is deprecated in favor of L</connect_info>. |
bb4f246d |
1190 | |
9b83fccd |
1191 | =item name_sep |
1192 | |
2cc3a7be |
1193 | See L</connect_info> for details. |
1194 | For setting, this method is deprecated in favor of L</connect_info>. |
bb4f246d |
1195 | |
9b83fccd |
1196 | =back |
1197 | |
92b858c9 |
1198 | =head1 ENVIRONMENT VARIABLES |
1199 | |
6fe735fa |
1200 | =head2 DBIC_TRACE |
92b858c9 |
1201 | |
6fe735fa |
1202 | If C<DBIC_TRACE> is set then SQL trace information |
92b858c9 |
1203 | is produced (as when the L<debug> method is set). |
1204 | |
1205 | If the value is of the form C<1=/path/name> then the trace output is |
1206 | written to the file C</path/name>. |
1207 | |
d1cceec4 |
1208 | This environment variable is checked when the storage object is first |
1209 | created (when you call connect on your schema). So, run-time changes |
1210 | to this environment variable will not take effect unless you also |
1211 | re-connect on your schema. |
1212 | |
6fe735fa |
1213 | =head2 DBIX_CLASS_STORAGE_DBI_DEBUG |
1214 | |
1215 | Old name for DBIC_TRACE |
1216 | |
8b445e33 |
1217 | =head1 AUTHORS |
1218 | |
daec44b8 |
1219 | Matt S. Trout <mst@shadowcatsystems.co.uk> |
8b445e33 |
1220 | |
9f19b1d6 |
1221 | Andy Grundman <andy@hybridized.org> |
1222 | |
8b445e33 |
1223 | =head1 LICENSE |
1224 | |
1225 | You may distribute this code under the same terms as Perl itself. |
1226 | |
1227 | =cut |