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1 | package DBIx::Class::Schema::Loader::DBI::Sybase; |
2 | |
3 | use strict; |
4 | use warnings; |
de82711a |
5 | use base 'DBIx::Class::Schema::Loader::DBI::Sybase::Common'; |
fe67d343 |
6 | use Carp::Clan qw/^DBIx::Class/; |
7 | use Class::C3; |
8 | |
e42ec4ef |
9 | our $VERSION = '0.05003'; |
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10 | |
11 | =head1 NAME |
12 | |
13 | DBIx::Class::Schema::Loader::DBI::Sybase - DBIx::Class::Schema::Loader::DBI Sybase Implementation. |
14 | |
15 | =head1 SYNOPSIS |
16 | |
17 | package My::Schema; |
18 | use base qw/DBIx::Class::Schema::Loader/; |
19 | |
20 | __PACKAGE__->loader_options( debug => 1 ); |
21 | |
22 | 1; |
23 | |
24 | =head1 DESCRIPTION |
25 | |
26 | See L<DBIx::Class::Schema::Loader::Base>. |
27 | |
28 | =cut |
29 | |
565335e6 |
30 | sub _is_case_sensitive { 1 } |
31 | |
fe67d343 |
32 | sub _rebless { |
33 | my $self = shift; |
34 | |
35 | my $dbh = $self->schema->storage->dbh; |
36 | my $DBMS_VERSION = @{$dbh->selectrow_arrayref(qq{sp_server_info \@attribute_id=1})}[2]; |
37 | if ($DBMS_VERSION =~ /^Microsoft /i) { |
b1e43108 |
38 | $DBMS_VERSION =~ s/\s/_/g; |
39 | my $subclass = "DBIx::Class::Schema::Loader::DBI::Sybase::$DBMS_VERSION"; |
65f74457 |
40 | if ($self->load_optional_class($subclass) && !$self->isa($subclass)) { |
41 | bless $self, $subclass; |
42 | $self->_rebless; |
fe67d343 |
43 | } |
44 | } |
45 | } |
46 | |
47 | sub _table_columns { |
48 | my ($self, $table) = @_; |
49 | |
50 | my $dbh = $self->schema->storage->dbh; |
9a55cbd2 |
51 | my $columns = $dbh->selectcol_arrayref(qq{ |
52 | SELECT c.name |
53 | FROM syscolumns c JOIN sysobjects o |
54 | ON c.id = o.id |
55 | WHERE o.name = @{[ $dbh->quote($table) ]} AND o.type = 'U' |
56 | }); |
fe67d343 |
57 | |
58 | return $columns; |
59 | } |
60 | |
61 | sub _table_pk_info { |
62 | my ($self, $table) = @_; |
63 | |
64 | my $dbh = $self->schema->storage->dbh; |
772367d3 |
65 | my $sth = $dbh->prepare(qq{sp_pkeys @{[ $dbh->quote($table) ]}}); |
fe67d343 |
66 | $sth->execute; |
67 | |
68 | my @keydata; |
69 | |
70 | while (my $row = $sth->fetchrow_hashref) { |
c9373b79 |
71 | push @keydata, $row->{column_name}; |
fe67d343 |
72 | } |
73 | |
74 | return \@keydata; |
75 | } |
76 | |
77 | sub _table_fk_info { |
78 | my ($self, $table) = @_; |
79 | |
0852b7b8 |
80 | # check if FK_NAME is supported |
565335e6 |
81 | |
0852b7b8 |
82 | my $dbh = $self->schema->storage->dbh; |
565335e6 |
83 | local $dbh->{FetchHashKeyName} = 'NAME_lc'; |
0852b7b8 |
84 | # hide "Object does not exist in this database." when trying to fetch fkeys |
85 | local $dbh->{syb_err_handler} = sub { return $_[0] == 17461 ? 0 : 1 }; |
772367d3 |
86 | my $sth = $dbh->prepare(qq{sp_fkeys \@fktable_name = @{[ $dbh->quote($table) ]}}); |
0852b7b8 |
87 | $sth->execute; |
88 | my $row = $sth->fetchrow_hashref; |
89 | |
90 | return unless $row; |
91 | |
92 | if (exists $row->{fk_name}) { |
93 | $sth->finish; |
94 | return $self->_table_fk_info_by_name($table); |
95 | } |
96 | |
97 | $sth->finish; |
98 | return $self->_table_fk_info_builder($table); |
99 | } |
100 | |
101 | sub _table_fk_info_by_name { |
102 | my ($self, $table) = @_; |
103 | my ($local_cols, $remote_cols, $remote_table, @rels); |
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104 | |
0852b7b8 |
105 | my $dbh = $self->schema->storage->dbh; |
106 | local $dbh->{FetchHashKeyName} = 'NAME_lc'; |
fe67d343 |
107 | # hide "Object does not exist in this database." when trying to fetch fkeys |
0852b7b8 |
108 | local $dbh->{syb_err_handler} = sub { return $_[0] == 17461 ? 0 : 1 }; |
772367d3 |
109 | my $sth = $dbh->prepare(qq{sp_fkeys \@fktable_name = @{[ $dbh->quote($table) ]}}); |
fe67d343 |
110 | $sth->execute; |
111 | |
112 | while (my $row = $sth->fetchrow_hashref) { |
0852b7b8 |
113 | my $fk = $row->{fk_name}; |
114 | next unless defined $fk; |
565335e6 |
115 | |
116 | push @{$local_cols->{$fk}}, $row->{fkcolumn_name}; |
117 | push @{$remote_cols->{$fk}}, $row->{pkcolumn_name}; |
118 | $remote_table->{$fk} = $row->{pktable_name}; |
fe67d343 |
119 | } |
120 | |
121 | foreach my $fk (keys %$remote_table) { |
65f74457 |
122 | push @rels, { |
123 | local_columns => \@{$local_cols->{$fk}}, |
124 | remote_columns => \@{$remote_cols->{$fk}}, |
125 | remote_table => $remote_table->{$fk}, |
126 | }; |
fe67d343 |
127 | |
128 | } |
129 | return \@rels; |
130 | } |
131 | |
0852b7b8 |
132 | sub _table_fk_info_builder { |
133 | my ($self, $table) = @_; |
134 | |
135 | my $dbh = $self->schema->storage->dbh; |
136 | local $dbh->{FetchHashKeyName} = 'NAME_lc'; |
137 | # hide "Object does not exist in this database." when trying to fetch fkeys |
138 | local $dbh->{syb_err_handler} = sub { return 0 if $_[0] == 17461; }; |
772367d3 |
139 | my $sth = $dbh->prepare(qq{sp_fkeys \@fktable_name = @{[ $dbh->quote($table) ]}}); |
0852b7b8 |
140 | $sth->execute; |
141 | |
142 | my @fk_info; |
143 | while (my $row = $sth->fetchrow_hashref) { |
144 | (my $ksq = $row->{key_seq}) =~ s/\s+//g; |
145 | |
146 | my @keys = qw/pktable_name pkcolumn_name fktable_name fkcolumn_name/; |
147 | my %ds; |
148 | @ds{@keys} = @{$row}{@keys}; |
149 | $ds{key_seq} = $ksq; |
150 | |
151 | push @{ $fk_info[$ksq] }, \%ds; |
152 | } |
153 | |
154 | my $max_keys = $#fk_info; |
155 | my @rels; |
156 | for my $level (reverse 1 .. $max_keys) { |
157 | my @level_rels; |
158 | $level_rels[$level] = splice @fk_info, $level, 1; |
159 | my $count = @{ $level_rels[$level] }; |
160 | |
161 | for my $sub_level (reverse 1 .. $level-1) { |
162 | my $total = @{ $fk_info[$sub_level] }; |
163 | |
164 | $level_rels[$sub_level] = [ |
165 | splice @{ $fk_info[$sub_level] }, $total-$count, $count |
166 | ]; |
167 | } |
168 | |
169 | while (1) { |
170 | my @rel = map shift @$_, @level_rels[1..$level]; |
171 | |
172 | last unless defined $rel[0]; |
173 | |
174 | my @local_columns = map $_->{fkcolumn_name}, @rel; |
175 | my @remote_columns = map $_->{pkcolumn_name}, @rel; |
176 | my $remote_table = $rel[0]->{pktable_name}; |
177 | |
178 | push @rels, { |
179 | local_columns => \@local_columns, |
180 | remote_columns => \@remote_columns, |
181 | remote_table => $remote_table |
182 | }; |
183 | } |
184 | } |
185 | |
186 | return \@rels; |
187 | } |
188 | |
fe67d343 |
189 | sub _table_uniq_info { |
190 | my ($self, $table) = @_; |
191 | |
0852b7b8 |
192 | local $SIG{__WARN__} = sub {}; |
193 | |
fe67d343 |
194 | my $dbh = $self->schema->storage->dbh; |
0852b7b8 |
195 | local $dbh->{FetchHashKeyName} = 'NAME_lc'; |
772367d3 |
196 | my $sth = $dbh->prepare(qq{sp_helpconstraint \@objname=@{[ $dbh->quote($table) ]}, \@nomsg='nomsg'}); |
0852b7b8 |
197 | eval { $sth->execute }; |
198 | return if $@; |
fe67d343 |
199 | |
200 | my $constraints; |
201 | while (my $row = $sth->fetchrow_hashref) { |
1e1839d1 |
202 | if (exists $row->{constraint_type}) { |
203 | my $type = $row->{constraint_type} || ''; |
204 | if ($type =~ /^unique/i) { |
c9373b79 |
205 | my $name = $row->{constraint_name}; |
1e1839d1 |
206 | push @{$constraints->{$name}}, |
c9373b79 |
207 | ( split /,/, $row->{constraint_keys} ); |
1e1839d1 |
208 | } |
209 | } else { |
210 | my $def = $row->{definition} || next; |
211 | next unless $def =~ /^unique/i; |
c9373b79 |
212 | my $name = $row->{name}; |
1e1839d1 |
213 | my ($keys) = $def =~ /\((.*)\)/; |
214 | $keys =~ s/\s*//g; |
c9373b79 |
215 | my @keys = split /,/ => $keys; |
1e1839d1 |
216 | push @{$constraints->{$name}}, @keys; |
fe67d343 |
217 | } |
218 | } |
219 | |
220 | my @uniqs = map { [ $_ => $constraints->{$_} ] } keys %$constraints; |
221 | return \@uniqs; |
222 | } |
223 | |
6ecee584 |
224 | # get the correct data types, defaults and size |
db4d62ad |
225 | sub _columns_info_for { |
226 | my $self = shift; |
227 | my ($table) = @_; |
228 | my $result = $self->next::method(@_); |
229 | |
230 | my $dbh = $self->schema->storage->dbh; |
231 | my $sth = $dbh->prepare(qq{ |
6ecee584 |
232 | SELECT c.name name, t.name type, cm.text deflt, c.prec prec, c.scale scale, |
233 | c.length len |
db4d62ad |
234 | FROM syscolumns c |
235 | JOIN sysobjects o ON c.id = o.id |
2fb9a4b3 |
236 | LEFT JOIN systypes t ON c.type = t.type AND c.usertype = t.usertype |
237 | LEFT JOIN syscomments cm |
238 | ON cm.id = CASE WHEN c.cdefault = 0 THEN c.computedcol ELSE c.cdefault END |
db4d62ad |
239 | WHERE o.name = @{[ $dbh->quote($table) ]} AND o.type = 'U' |
240 | }); |
241 | $sth->execute; |
242 | local $dbh->{FetchHashKeyName} = 'NAME_lc'; |
2fb9a4b3 |
243 | my $info = $sth->fetchall_hashref('name'); |
db4d62ad |
244 | |
2fb9a4b3 |
245 | while (my ($col, $res) = each %$result) { |
41968729 |
246 | my $data_type = $res->{data_type} = $info->{$col}{type}; |
247 | |
248 | if ($data_type && $data_type =~ /^timestamp\z/i) { |
249 | $res->{inflate_datetime} = 0; |
250 | } |
2fb9a4b3 |
251 | |
252 | if (my $default = $info->{$col}{deflt}) { |
253 | if ($default =~ /^AS \s+ (\S+)/ix) { |
254 | my $function = $1; |
255 | $res->{default_value} = \$function; |
0faae4b8 |
256 | |
257 | if ($function =~ /^getdate\b/) { |
258 | $res->{inflate_datetime} = 1; |
259 | } |
2fb9a4b3 |
260 | } |
261 | elsif ($default =~ /^DEFAULT \s+ (\S+)/ix) { |
41968729 |
262 | my ($constant_default) = $1 =~ /^['"\[\]]?(.*?)['"\[\]]?\z/; |
2fb9a4b3 |
263 | $res->{default_value} = $constant_default; |
264 | } |
265 | } |
6ecee584 |
266 | |
ca7feebf |
267 | # XXX we need to handle "binary precision" for FLOAT(X) |
268 | # (see: http://msdn.microsoft.com/en-us/library/aa258876(SQL.80).aspx ) |
6ecee584 |
269 | if (my $data_type = $res->{data_type}) { |
270 | if ($data_type =~ /^(?:text|unitext|image|bigint|int|integer|smallint|tinyint|real|double|double precision|float|date|time|datetime|smalldatetime|money|smallmoney|timestamp|bit)\z/i) { |
271 | delete $res->{size}; |
272 | } |
273 | elsif ($data_type =~ /^(?:numeric|decimal)\z/i) { |
274 | $res->{size} = [ $info->{$col}{prec}, $info->{$col}{scale} ]; |
275 | } |
276 | elsif ($data_type =~ /^(?:unichar|univarchar)\z/i) { |
277 | $res->{size} /= 2; |
278 | } |
279 | } |
db4d62ad |
280 | } |
281 | |
282 | return $result; |
283 | } |
284 | |
fe67d343 |
285 | sub _extra_column_info { |
45be2ce7 |
286 | my ($self, $table, $column, $info, $dbi_info) = @_; |
fe67d343 |
287 | my %extra_info; |
288 | |
fe67d343 |
289 | my $dbh = $self->schema->storage->dbh; |
772367d3 |
290 | my $sth = $dbh->prepare(qq{SELECT name FROM syscolumns WHERE id = (SELECT id FROM sysobjects WHERE name = @{[ $dbh->quote($table) ]}) AND (status & 0x80) = 0x80 AND name = @{[ $dbh->quote($column) ]}}); |
fe67d343 |
291 | $sth->execute(); |
292 | |
293 | if ($sth->fetchrow_array) { |
294 | $extra_info{is_auto_increment} = 1; |
295 | } |
296 | |
297 | return \%extra_info; |
298 | } |
299 | |
300 | =head1 SEE ALSO |
301 | |
302 | L<DBIx::Class::Schema::Loader>, L<DBIx::Class::Schema::Loader::Base>, |
303 | L<DBIx::Class::Schema::Loader::DBI> |
304 | |
305 | =head1 AUTHOR |
306 | |
9cc8e7e1 |
307 | See L<DBIx::Class::Schema::Loader/AUTHOR> and L<DBIx::Class::Schema::Loader/CONTRIBUTORS>. |
fe67d343 |
308 | |
be80bba7 |
309 | =head1 LICENSE |
0852b7b8 |
310 | |
be80bba7 |
311 | This library is free software; you can redistribute it and/or modify it under |
312 | the same terms as Perl itself. |
0852b7b8 |
313 | |
fe67d343 |
314 | =cut |
315 | |
316 | 1; |