Commit | Line | Data |
996be9ee |
1 | package DBIx::Class::Schema::Loader::DBI; |
2 | |
3 | use strict; |
4 | use warnings; |
abaf2c66 |
5 | use base qw/DBIx::Class::Schema::Loader::Base/; |
942bd5e0 |
6 | use mro 'c3'; |
61d1cca1 |
7 | use Try::Tiny; |
ecf22f0a |
8 | use List::Util 'any'; |
116431d6 |
9 | use Carp::Clan qw/^DBIx::Class/; |
61d1cca1 |
10 | use namespace::clean; |
c4a69b87 |
11 | use DBIx::Class::Schema::Loader::Table (); |
996be9ee |
12 | |
46564a42 |
13 | our $VERSION = '0.07048_01'; |
32f784fc |
14 | |
3b17d988 |
15 | __PACKAGE__->mk_group_accessors('simple', qw/ |
16 | _disable_pk_detection |
17 | _disable_uniq_detection |
18 | _disable_fk_detection |
19 | _passwords |
c4a69b87 |
20 | quote_char |
21 | name_sep |
3b17d988 |
22 | /); |
23 | |
996be9ee |
24 | =head1 NAME |
25 | |
26 | DBIx::Class::Schema::Loader::DBI - DBIx::Class::Schema::Loader DBI Implementation. |
27 | |
28 | =head1 SYNOPSIS |
29 | |
30 | See L<DBIx::Class::Schema::Loader::Base> |
31 | |
32 | =head1 DESCRIPTION |
33 | |
34 | This is the base class for L<DBIx::Class::Schema::Loader::Base> classes for |
35 | DBI-based storage backends, and implements the common functionality between them. |
36 | |
37 | See L<DBIx::Class::Schema::Loader::Base> for the available options. |
38 | |
39 | =head1 METHODS |
40 | |
41 | =head2 new |
42 | |
43 | Overlays L<DBIx::Class::Schema::Loader::Base/new> to do some DBI-specific |
44 | things. |
45 | |
46 | =cut |
47 | |
48 | sub new { |
49 | my $self = shift->next::method(@_); |
50 | |
71a6e88a |
51 | # rebless to vendor-specific class if it exists and loads and we're not in a |
52 | # custom class. |
53 | if (not $self->loader_class) { |
c4a69b87 |
54 | my $driver = $self->dbh->{Driver}->{Name}; |
71a6e88a |
55 | |
56 | my $subclass = 'DBIx::Class::Schema::Loader::DBI::' . $driver; |
383bd2a8 |
57 | if ((not $self->isa($subclass)) && $self->load_optional_class($subclass)) { |
58 | bless $self, $subclass; |
71a6e88a |
59 | $self->_rebless; |
383bd2a8 |
60 | Class::C3::reinitialize() if $] < 5.009005; |
71a6e88a |
61 | } |
996be9ee |
62 | } |
63 | |
dee01f3b |
64 | # Set up the default quoting character and name separators |
c4a69b87 |
65 | $self->quote_char($self->_build_quote_char); |
66 | $self->name_sep($self->_build_name_sep); |
996be9ee |
67 | |
68 | $self->_setup; |
69 | |
383bd2a8 |
70 | return $self; |
996be9ee |
71 | } |
72 | |
c4a69b87 |
73 | sub _build_quote_char { |
77d3753e |
74 | my $self = shift; |
c4a69b87 |
75 | |
76 | my $quote_char = $self->dbh->get_info(29) |
494e0205 |
77 | || $self->schema->storage->sql_maker->quote_char |
78 | || q{"}; |
c4a69b87 |
79 | |
80 | # For our usage as regex matches, concatenating multiple quote_char |
81 | # values works fine (e.g. s/[\Q<>\E]// if quote_char was [ '<', '>' ]) |
82 | if (ref $quote_char eq 'ARRAY') { |
83 | $quote_char = join '', @$quote_char; |
84 | } |
85 | |
86 | return $quote_char; |
77d3753e |
87 | } |
88 | |
c4a69b87 |
89 | sub _build_name_sep { |
77d3753e |
90 | my $self = shift; |
c4a69b87 |
91 | return $self->dbh->get_info(41) |
494e0205 |
92 | || $self->schema->storage->sql_maker->name_sep |
93 | || '.'; |
77d3753e |
94 | } |
95 | |
996be9ee |
96 | # Override this in vendor modules to do things at the end of ->new() |
97 | sub _setup { } |
98 | |
6ae3f335 |
99 | # Override this in vendor module to load a subclass if necessary |
100 | sub _rebless { } |
101 | |
c4a69b87 |
102 | sub _system_schemas { |
103 | return ('information_schema'); |
104 | } |
105 | |
106 | sub _system_tables { |
107 | return (); |
108 | } |
109 | |
110 | sub _dbh_tables { |
36c8c37c |
111 | my $self = shift; |
c4a69b87 |
112 | |
36c8c37c |
113 | return $self->dbh->tables(undef, @_); |
c4a69b87 |
114 | } |
115 | |
116 | # default to be overridden in subclasses if necessary |
117 | sub _supports_db_schema { 1 } |
118 | |
119 | # Returns an array of table objects |
a40434df |
120 | sub _tables_list { |
5784b2b9 |
121 | my ($self) = @_; |
996be9ee |
122 | |
c4a69b87 |
123 | my @tables; |
124 | |
125 | my $qt = qr/[\Q$self->{quote_char}\E"'`\[\]]/; |
126 | my $nqt = qr/[^\Q$self->{quote_char}\E"'`\[\]]/; |
127 | my $ns = qr/[\Q$self->{name_sep}\E]/; |
128 | my $nns = qr/[^\Q$self->{name_sep}\E]/; |
129 | |
130 | foreach my $schema (@{ $self->db_schema || [undef] }) { |
5784b2b9 |
131 | my @raw_table_names = $self->_dbh_tables($schema); |
c4a69b87 |
132 | |
133 | TABLE: foreach my $raw_table_name (@raw_table_names) { |
134 | my $quoted = $raw_table_name =~ /^$qt/; |
135 | |
136 | # These regexes are not entirely correct, but hopefully they will work |
137 | # in most cases. RT reports welcome. |
138 | my ($schema_name, $table_name1, $table_name2) = $quoted ? |
139 | $raw_table_name =~ /^(?:${qt}(${nqt}+?)${qt}${ns})?(?:${qt}(.+?)${qt}|(${nns}+))\z/ |
140 | : |
141 | $raw_table_name =~ /^(?:(${nns}+?)${ns})?(?:${qt}(.+?)${qt}|(${nns}+))\z/; |
142 | |
143 | my $table_name = $table_name1 || $table_name2; |
144 | |
145 | foreach my $system_schema ($self->_system_schemas) { |
146 | if ($schema_name) { |
147 | my $matches = 0; |
148 | |
149 | if (ref $system_schema) { |
150 | $matches = 1 |
151 | if $schema_name =~ $system_schema |
494e0205 |
152 | && $schema !~ $system_schema; |
c4a69b87 |
153 | } |
154 | else { |
155 | $matches = 1 |
156 | if $schema_name eq $system_schema |
157 | && $schema ne $system_schema; |
158 | } |
159 | |
160 | next TABLE if $matches; |
161 | } |
162 | } |
163 | |
164 | foreach my $system_table ($self->_system_tables) { |
165 | my $matches = 0; |
e57fd726 |
166 | |
c4a69b87 |
167 | if (ref $system_table) { |
168 | $matches = 1 if $table_name =~ $system_table; |
169 | } |
170 | else { |
171 | $matches = 1 if $table_name eq $system_table |
172 | } |
77d3753e |
173 | |
c4a69b87 |
174 | next TABLE if $matches; |
175 | } |
176 | |
177 | $schema_name ||= $schema; |
385c593b |
178 | |
c4a69b87 |
179 | my $table = DBIx::Class::Schema::Loader::Table->new( |
180 | loader => $self, |
181 | name => $table_name, |
182 | schema => $schema_name, |
183 | ($self->_supports_db_schema ? () : ( |
184 | ignore_schema => 1 |
185 | )), |
186 | ); |
c5ff1f26 |
187 | |
c4a69b87 |
188 | push @tables, $table; |
189 | } |
385c593b |
190 | } |
996be9ee |
191 | |
5784b2b9 |
192 | return $self->_filter_tables(\@tables); |
075aff97 |
193 | } |
194 | |
b187901e |
195 | sub _recurse_constraint { |
196 | my ($constraint, @parts) = @_; |
197 | |
198 | my $name = shift @parts; |
199 | |
200 | # If there are any parts left, the constraint must be an arrayref |
201 | croak "depth of constraint/exclude array does not match length of moniker_parts" |
202 | unless !!@parts == !!(ref $constraint eq 'ARRAY'); |
203 | |
204 | # if ths is the last part, use the constraint directly |
205 | return $name =~ $constraint unless @parts; |
206 | |
207 | # recurse into the first matching subconstraint |
208 | foreach (@{$constraint}) { |
209 | my ($re, $sub) = @{$_}; |
210 | return _recurse_constraint($sub, @parts) |
211 | if $name =~ $re; |
212 | } |
213 | return 0; |
214 | } |
215 | |
216 | sub _check_constraint { |
217 | my ($include, $constraint, @tables) = @_; |
218 | |
219 | return @tables unless defined $constraint; |
220 | |
221 | return grep { !$include xor _recurse_constraint($constraint, @{$_}) } @tables |
222 | if ref $constraint eq 'ARRAY'; |
223 | |
224 | return grep { !$include xor /$constraint/ } @tables; |
225 | } |
226 | |
227 | |
228 | |
bfb43060 |
229 | # apply constraint/exclude and ignore bad tables and views |
075aff97 |
230 | sub _filter_tables { |
5784b2b9 |
231 | my ($self, $tables) = @_; |
075aff97 |
232 | |
bfb43060 |
233 | my @tables = @$tables; |
075aff97 |
234 | my @filtered_tables; |
235 | |
5784b2b9 |
236 | @tables = _check_constraint(1, $self->constraint, @tables); |
237 | @tables = _check_constraint(0, $self->exclude, @tables); |
bfb43060 |
238 | |
c4a69b87 |
239 | TABLE: for my $table (@tables) { |
61d1cca1 |
240 | try { |
afcd3c32 |
241 | local $^W = 0; # for ADO |
805dbe0a |
242 | my $sth = $self->_sth_for($table, undef, \'1 = 0'); |
243 | $sth->execute; |
c4a69b87 |
244 | 1; |
075aff97 |
245 | } |
61d1cca1 |
246 | catch { |
247 | warn "Bad table or view '$table', ignoring: $_\n"; |
c4a69b87 |
248 | 0; |
249 | } or next TABLE; |
61d1cca1 |
250 | |
251 | push @filtered_tables, $table; |
075aff97 |
252 | } |
253 | |
254 | return @filtered_tables; |
996be9ee |
255 | } |
256 | |
12af3806 |
257 | =head2 load |
258 | |
259 | We override L<DBIx::Class::Schema::Loader::Base/load> here to hook in our localized settings for C<$dbh> error handling. |
260 | |
261 | =cut |
262 | |
263 | sub load { |
264 | my $self = shift; |
265 | |
c4a69b87 |
266 | local $self->dbh->{RaiseError} = 1; |
267 | local $self->dbh->{PrintError} = 0; |
12b86f07 |
268 | |
c4a69b87 |
269 | $self->next::method(@_); |
075aff97 |
270 | } |
271 | |
272 | sub _sth_for { |
273 | my ($self, $table, $fields, $where) = @_; |
274 | |
c4a69b87 |
275 | my $sth = $self->dbh->prepare($self->schema->storage->sql_maker |
4f1bda9c |
276 | ->select(\$table->sql_name, $fields || \'*', $where)); |
075aff97 |
277 | |
278 | return $sth; |
279 | } |
280 | |
281 | # Returns an arrayref of column names |
282 | sub _table_columns { |
283 | my ($self, $table) = @_; |
284 | |
285 | my $sth = $self->_sth_for($table, undef, \'1 = 0'); |
996be9ee |
286 | $sth->execute; |
1af21646 |
287 | |
288 | my $retval = [ map $self->_lc($_), @{$sth->{NAME}} ]; |
289 | |
3b7f80f9 |
290 | $sth->finish; |
291 | |
1af21646 |
292 | return $retval; |
996be9ee |
293 | } |
294 | |
295 | # Returns arrayref of pk col names |
a40434df |
296 | sub _table_pk_info { |
fd589700 |
297 | my ($self, $table) = @_; |
996be9ee |
298 | |
3b17d988 |
299 | return [] if $self->_disable_pk_detection; |
300 | |
3b17d988 |
301 | my @primary = try { |
c4a69b87 |
302 | $self->dbh->primary_key('', $table->schema, $table->name); |
3b17d988 |
303 | } |
304 | catch { |
305 | warn "Cannot find primary keys for this driver: $_"; |
306 | $self->_disable_pk_detection(1); |
307 | return (); |
308 | }; |
309 | |
310 | return [] if not @primary; |
311 | |
312 | @primary = map { $self->_lc($_) } @primary; |
c4a69b87 |
313 | s/[\Q$self->{quote_char}\E]//g for @primary; |
996be9ee |
314 | |
315 | return \@primary; |
316 | } |
317 | |
fd589700 |
318 | # Override this for vendor-specific uniq info |
996be9ee |
319 | sub _table_uniq_info { |
fd589700 |
320 | my ($self, $table) = @_; |
321 | |
3b17d988 |
322 | return [] if $self->_disable_uniq_detection; |
323 | |
c4a69b87 |
324 | if (not $self->dbh->can('statistics_info')) { |
3b17d988 |
325 | warn "No UNIQUE constraint information can be gathered for this driver"; |
326 | $self->_disable_uniq_detection(1); |
fd589700 |
327 | return []; |
328 | } |
329 | |
330 | my %indices; |
c4a69b87 |
331 | my $sth = $self->dbh->statistics_info(undef, $table->schema, $table->name, 1, 1); |
fd589700 |
332 | while(my $row = $sth->fetchrow_hashref) { |
333 | # skip table-level stats, conditional indexes, and any index missing |
334 | # critical fields |
335 | next if $row->{TYPE} eq 'table' |
336 | || defined $row->{FILTER_CONDITION} |
337 | || !$row->{INDEX_NAME} |
b32f8189 |
338 | || !defined $row->{ORDINAL_POSITION}; |
fd589700 |
339 | |
b32f8189 |
340 | $indices{$row->{INDEX_NAME}}[$row->{ORDINAL_POSITION}] = $self->_lc($row->{COLUMN_NAME} || ''); |
fd589700 |
341 | } |
3b7f80f9 |
342 | $sth->finish; |
fd589700 |
343 | |
344 | my @retval; |
6c4f5a4a |
345 | foreach my $index_name (sort keys %indices) { |
b32f8189 |
346 | my (undef, @cols) = @{$indices{$index_name}}; |
347 | # skip indexes with missing column names (e.g. expression indexes) |
348 | next unless @cols == grep $_, @cols; |
349 | push(@retval, [ $index_name => \@cols ]); |
fd589700 |
350 | } |
351 | |
352 | return \@retval; |
996be9ee |
353 | } |
354 | |
c4a69b87 |
355 | sub _table_comment { |
356 | my ($self, $table) = @_; |
7732645c |
357 | my $dbh = $self->dbh; |
5c06aa08 |
358 | |
b21abfca |
359 | my $comments_table = $table->clone; |
360 | $comments_table->name($self->table_comments_table); |
5c06aa08 |
361 | |
07307014 |
362 | my ($comment) = |
363 | (exists $self->_tables->{$comments_table->sql_name} || undef) |
364 | && try { $dbh->selectrow_array(<<"EOF") }; |
c4a69b87 |
365 | SELECT comment_text |
b21abfca |
366 | FROM @{[ $comments_table->sql_name ]} |
7732645c |
367 | WHERE table_name = @{[ $dbh->quote($table->name) ]} |
c4a69b87 |
368 | EOF |
5c06aa08 |
369 | |
5ffed88c |
370 | # Failback: try the REMARKS column on table_info |
68c6c83f |
371 | if (!$comment) { |
372 | my $info = $self->_dbh_table_info( $dbh, $table ); |
373 | $comment = $info->{REMARKS} if $info; |
5ffed88c |
374 | } |
375 | |
c4a69b87 |
376 | return $comment; |
5c06aa08 |
377 | } |
378 | |
379 | sub _column_comment { |
b21abfca |
380 | my ($self, $table, $column_number, $column_name) = @_; |
7732645c |
381 | my $dbh = $self->dbh; |
c4a69b87 |
382 | |
b21abfca |
383 | my $comments_table = $table->clone; |
384 | $comments_table->name($self->column_comments_table); |
c4a69b87 |
385 | |
07307014 |
386 | my ($comment) = |
387 | (exists $self->_tables->{$comments_table->sql_name} || undef) |
388 | && try { $dbh->selectrow_array(<<"EOF") }; |
c4a69b87 |
389 | SELECT comment_text |
b21abfca |
390 | FROM @{[ $comments_table->sql_name ]} |
7732645c |
391 | WHERE table_name = @{[ $dbh->quote($table->name) ]} |
392 | AND column_name = @{[ $dbh->quote($column_name) ]} |
c4a69b87 |
393 | EOF |
5ffed88c |
394 | |
395 | # Failback: try the REMARKS column on column_info |
5ffed88c |
396 | if (!$comment && $dbh->can('column_info')) { |
1af21646 |
397 | if (my $sth = try { $self->_dbh_column_info( $dbh, undef, $table->schema, $table->name, $column_name ) }) { |
398 | my $info = $sth->fetchrow_hashref(); |
399 | $comment = $info->{REMARKS}; |
400 | } |
5ffed88c |
401 | } |
402 | |
c4a69b87 |
403 | return $comment; |
5c06aa08 |
404 | } |
405 | |
996be9ee |
406 | # Find relationships |
407 | sub _table_fk_info { |
408 | my ($self, $table) = @_; |
409 | |
3b17d988 |
410 | return [] if $self->_disable_fk_detection; |
411 | |
3b17d988 |
412 | my $sth = try { |
c4a69b87 |
413 | $self->dbh->foreign_key_info( '', '', '', |
414 | '', ($table->schema || ''), $table->name ); |
3b17d988 |
415 | } |
416 | catch { |
417 | warn "Cannot introspect relationships for this driver: $_"; |
418 | $self->_disable_fk_detection(1); |
419 | return undef; |
420 | }; |
421 | |
996be9ee |
422 | return [] if !$sth; |
423 | |
424 | my %rels; |
425 | |
a40434df |
426 | my @rules = ( |
427 | 'CASCADE', |
428 | 'RESTRICT', |
429 | 'SET NULL', |
430 | 'NO ACTION', |
431 | 'SET DEFAULT', |
432 | ); |
433 | |
996be9ee |
434 | my $i = 1; # for unnamed rels, which hopefully have only 1 column ... |
c4a69b87 |
435 | REL: while(my $raw_rel = $sth->fetchrow_arrayref) { |
436 | my $uk_scm = $raw_rel->[1]; |
996be9ee |
437 | my $uk_tbl = $raw_rel->[2]; |
c930f78b |
438 | my $uk_col = $self->_lc($raw_rel->[3]); |
c4a69b87 |
439 | my $fk_scm = $raw_rel->[5]; |
c930f78b |
440 | my $fk_col = $self->_lc($raw_rel->[7]); |
a273b50c |
441 | my $key_seq = $raw_rel->[8] - 1; |
996be9ee |
442 | my $relid = ($raw_rel->[11] || ( "__dcsld__" . $i++ )); |
c4a69b87 |
443 | |
a40434df |
444 | my $update_rule = $raw_rel->[9]; |
445 | my $delete_rule = $raw_rel->[10]; |
446 | |
447 | $update_rule = $rules[$update_rule] if defined $update_rule; |
448 | $delete_rule = $rules[$delete_rule] if defined $delete_rule; |
449 | |
450 | my $is_deferrable = $raw_rel->[13]; |
451 | |
452 | ($is_deferrable = $is_deferrable == 7 ? 0 : 1) |
453 | if defined $is_deferrable; |
454 | |
c4a69b87 |
455 | foreach my $var ($uk_scm, $uk_tbl, $uk_col, $fk_scm, $fk_col, $relid) { |
ba9954e0 |
456 | $var =~ s/[\Q$self->{quote_char}\E]//g if defined $var; |
c4a69b87 |
457 | } |
458 | |
459 | if ($self->db_schema && $self->db_schema->[0] ne '%' |
460 | && (not any { $_ eq $uk_scm } @{ $self->db_schema })) { |
461 | |
462 | next REL; |
463 | } |
464 | |
a40434df |
465 | $rels{$relid}{tbl} ||= DBIx::Class::Schema::Loader::Table->new( |
c4a69b87 |
466 | loader => $self, |
467 | name => $uk_tbl, |
468 | schema => $uk_scm, |
469 | ($self->_supports_db_schema ? () : ( |
470 | ignore_schema => 1 |
471 | )), |
472 | ); |
a40434df |
473 | |
474 | $rels{$relid}{attrs}{on_delete} = $delete_rule if $delete_rule; |
475 | $rels{$relid}{attrs}{on_update} = $update_rule if $update_rule; |
476 | $rels{$relid}{attrs}{is_deferrable} = $is_deferrable if defined $is_deferrable; |
477 | |
a273b50c |
478 | # Add this data IN ORDER |
479 | $rels{$relid}{rcols}[$key_seq] = $uk_col; |
480 | $rels{$relid}{lcols}[$key_seq] = $fk_col; |
996be9ee |
481 | } |
3b7f80f9 |
482 | $sth->finish; |
996be9ee |
483 | |
484 | my @rels; |
485 | foreach my $relid (keys %rels) { |
486 | push(@rels, { |
79137580 |
487 | remote_columns => [ grep defined, @{ $rels{$relid}{rcols} } ], |
488 | local_columns => [ grep defined, @{ $rels{$relid}{lcols} } ], |
996be9ee |
489 | remote_table => $rels{$relid}->{tbl}, |
a40434df |
490 | (exists $rels{$relid}{attrs} ? |
491 | (attrs => $rels{$relid}{attrs}) |
492 | : |
493 | () |
494 | ), |
495 | _constraint_name => $relid, |
996be9ee |
496 | }); |
497 | } |
498 | |
499 | return \@rels; |
500 | } |
501 | |
12af3806 |
502 | # ported in from DBIx::Class::Storage::DBI: |
503 | sub _columns_info_for { |
504 | my ($self, $table) = @_; |
505 | |
506 | my $dbh = $self->schema->storage->dbh; |
507 | |
61d1cca1 |
508 | my %result; |
afa71a98 |
509 | my %raw_result; |
61d1cca1 |
510 | |
1af21646 |
511 | if (my $sth = try { $self->_dbh_column_info($dbh, undef, $table->schema, $table->name, '%' ) }) { |
512 | COL_INFO: while (my $info = try { $sth->fetchrow_hashref } catch { +{} }) { |
513 | next COL_INFO unless %$info; |
514 | |
61d1cca1 |
515 | my $column_info = {}; |
516 | $column_info->{data_type} = lc $info->{TYPE_NAME}; |
517 | |
518 | my $size = $info->{COLUMN_SIZE}; |
519 | |
520 | if (defined $size && defined $info->{DECIMAL_DIGITS}) { |
521 | $column_info->{size} = [$size, $info->{DECIMAL_DIGITS}]; |
12af3806 |
522 | } |
61d1cca1 |
523 | elsif (defined $size) { |
524 | $column_info->{size} = $size; |
525 | } |
526 | |
527 | $column_info->{is_nullable} = $info->{NULLABLE} ? 1 : 0; |
528 | $column_info->{default_value} = $info->{COLUMN_DEF} if defined $info->{COLUMN_DEF}; |
529 | my $col_name = $info->{COLUMN_NAME}; |
530 | $col_name =~ s/^\"(.*)\"$/$1/; |
531 | |
61d1cca1 |
532 | my $extra_info = $self->_extra_column_info( |
533 | $table, $col_name, $column_info, $info |
534 | ) || {}; |
535 | $column_info = { %$column_info, %$extra_info }; |
536 | |
afa71a98 |
537 | $raw_result{$col_name} = $info; |
61d1cca1 |
538 | $result{$col_name} = $column_info; |
539 | } |
540 | $sth->finish; |
12af3806 |
541 | } |
542 | |
075aff97 |
543 | my $sth = $self->_sth_for($table, undef, \'1 = 0'); |
12af3806 |
544 | $sth->execute; |
61d1cca1 |
545 | |
ed18888f |
546 | my @columns = @{ $sth->{NAME} }; |
61d1cca1 |
547 | |
1af21646 |
548 | COL: for my $i (0 .. $#columns) { |
22f91663 |
549 | next COL if %{ $result{ $columns[$i] }||{} }; |
1af21646 |
550 | |
23d1f36b |
551 | my $column_info = {}; |
57a9fc92 |
552 | $column_info->{data_type} = lc $sth->{TYPE}[$i]; |
26334ec1 |
553 | |
554 | my $size = $sth->{PRECISION}[$i]; |
555 | |
556 | if (defined $size && defined $sth->{SCALE}[$i]) { |
557 | $column_info->{size} = [$size, $sth->{SCALE}[$i]]; |
558 | } |
559 | elsif (defined $size) { |
560 | $column_info->{size} = $size; |
561 | } |
562 | |
57a9fc92 |
563 | $column_info->{is_nullable} = $sth->{NULLABLE}[$i] ? 1 : 0; |
23d1f36b |
564 | |
565 | if ($column_info->{data_type} =~ m/^(.*?)\((.*?)\)$/) { |
566 | $column_info->{data_type} = $1; |
567 | $column_info->{size} = $2; |
12af3806 |
568 | } |
569 | |
698c11d8 |
570 | my $extra_info = $self->_extra_column_info($table, $columns[$i], $column_info, $sth) || {}; |
23d1f36b |
571 | $column_info = { %$column_info, %$extra_info }; |
572 | |
116431d6 |
573 | $result{ $columns[$i] } = $column_info; |
12af3806 |
574 | } |
6ce0bcc3 |
575 | $sth->finish; |
576 | |
577 | foreach my $col (keys %result) { |
578 | my $colinfo = $result{$col}; |
579 | my $type_num = $colinfo->{data_type}; |
580 | my $type_name; |
afcd3c32 |
581 | if (defined $type_num && $type_num =~ /^-?\d+\z/ && $dbh->can('type_info')) { |
5111e5d0 |
582 | my $type_name = $self->_dbh_type_info_type_name($type_num); |
cf0ba25b |
583 | $colinfo->{data_type} = lc $type_name if $type_name; |
6ce0bcc3 |
584 | } |
585 | } |
12af3806 |
586 | |
116431d6 |
587 | # check for instances of the same column name with different case in preserve_case=0 mode |
588 | if (not $self->preserve_case) { |
589 | my %lc_colnames; |
590 | |
591 | foreach my $col (keys %result) { |
592 | push @{ $lc_colnames{lc $col} }, $col; |
593 | } |
594 | |
595 | if (keys %lc_colnames != keys %result) { |
596 | my @offending_colnames = map @$_, grep @$_ > 1, values %lc_colnames; |
597 | |
598 | my $offending_colnames = join ", ", map "'$_'", @offending_colnames; |
599 | |
600 | croak "columns $offending_colnames in table @{[ $table->sql_name ]} collide in preserve_case=0 mode. preserve_case=1 mode required"; |
601 | } |
602 | |
603 | # apply lowercasing |
604 | my %lc_result; |
605 | |
606 | while (my ($col, $info) = each %result) { |
607 | $lc_result{ $self->_lc($col) } = $info; |
608 | } |
609 | |
610 | %result = %lc_result; |
611 | } |
612 | |
afa71a98 |
613 | return wantarray ? (\%result, \%raw_result) : \%result; |
12af3806 |
614 | } |
615 | |
23024b3f |
616 | # Need to override this for the buggy Firebird ODBC driver. |
5111e5d0 |
617 | sub _dbh_type_info_type_name { |
23024b3f |
618 | my ($self, $type_num) = @_; |
619 | |
354b6942 |
620 | # We wrap it in a try block for MSSQL+DBD::Sybase, which can have issues. |
621 | # TODO investigate further |
622 | my $type_info = try { $self->dbh->type_info($type_num) }; |
a40434df |
623 | |
5111e5d0 |
624 | return $type_info ? $type_info->{TYPE_NAME} : undef; |
23024b3f |
625 | } |
626 | |
db9c411a |
627 | # do not use this, override _columns_info_for instead |
a8df0345 |
628 | sub _extra_column_info {} |
c5baf131 |
629 | |
5ffed88c |
630 | # override to mask warnings if needed |
631 | sub _dbh_table_info { |
68c6c83f |
632 | my ($self, $dbh, $table) = (shift, shift, shift); |
633 | |
634 | return undef if !$dbh->can('table_info'); |
635 | my $sth = $dbh->table_info(undef, $table->schema, $table->name); |
636 | while (my $info = $sth->fetchrow_hashref) { |
637 | next if !$self->_table_info_matches($table, $info); |
638 | return $info; |
639 | } |
640 | return undef; |
641 | } |
642 | |
643 | sub _table_info_matches { |
644 | my ($self, $table, $info) = @_; |
5ffed88c |
645 | |
68c6c83f |
646 | no warnings 'uninitialized'; |
647 | return $info->{TABLE_SCHEM} eq $table->schema |
648 | && $info->{TABLE_NAME} eq $table->name; |
5ffed88c |
649 | } |
650 | |
db9c411a |
651 | # override to mask warnings if needed (see mysql) |
652 | sub _dbh_column_info { |
653 | my ($self, $dbh) = (shift, shift); |
654 | |
655 | return $dbh->column_info(@_); |
656 | } |
657 | |
3b17d988 |
658 | # If a coderef uses DBI->connect, this should get its connect info. |
659 | sub _try_infer_connect_info_from_coderef { |
660 | my ($self, $code) = @_; |
661 | |
662 | my ($dsn, $user, $pass, $params); |
663 | |
664 | no warnings 'redefine'; |
665 | |
666 | local *DBI::connect = sub { |
667 | (undef, $dsn, $user, $pass, $params) = @_; |
668 | }; |
669 | |
670 | $code->(); |
671 | |
672 | return ($dsn, $user, $pass, $params); |
673 | } |
674 | |
c4a69b87 |
675 | sub dbh { |
676 | my $self = shift; |
677 | |
678 | return $self->schema->storage->dbh; |
679 | } |
680 | |
ce2f102a |
681 | sub _table_is_view { |
682 | my ($self, $table) = @_; |
683 | |
684 | my $info = $self->_dbh_table_info($self->dbh, $table) |
685 | or return 0; |
686 | return $info->{TABLE_TYPE} eq 'VIEW'; |
687 | } |
688 | |
996be9ee |
689 | =head1 SEE ALSO |
690 | |
691 | L<DBIx::Class::Schema::Loader> |
692 | |
b87ab391 |
693 | =head1 AUTHORS |
be80bba7 |
694 | |
b87ab391 |
695 | See L<DBIx::Class::Schema::Loader/AUTHORS>. |
be80bba7 |
696 | |
697 | =head1 LICENSE |
698 | |
699 | This library is free software; you can redistribute it and/or modify it under |
700 | the same terms as Perl itself. |
701 | |
996be9ee |
702 | =cut |
703 | |
704 | 1; |
26334ec1 |
705 | # vim:et sts=4 sw=4 tw=0: |