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1 | package DBIx::Class::Schema::Loader::DBI::Sybase; |
2 | |
3 | use strict; |
4 | use warnings; |
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5 | use base 'DBIx::Class::Schema::Loader::DBI::Sybase::Common'; |
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6 | use Carp::Clan qw/^DBIx::Class/; |
7 | use Class::C3; |
8 | |
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9 | our $VERSION = '0.07000'; |
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10 | |
11 | =head1 NAME |
12 | |
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13 | DBIx::Class::Schema::Loader::DBI::Sybase - DBIx::Class::Schema::Loader::DBI |
14 | Sybase ASE Implementation. |
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15 | |
16 | =head1 DESCRIPTION |
17 | |
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18 | See L<DBIx::Class::Schema::Loader> and L<DBIx::Class::Schema::Loader::Base>. |
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19 | |
20 | =cut |
21 | |
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22 | sub _setup { |
23 | my $self = shift; |
24 | |
25 | $self->next::method(@_); |
26 | |
27 | if (not defined $self->preserve_case) { |
28 | $self->preserve_case(1); |
29 | } |
30 | } |
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31 | |
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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"; |
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40 | if ($self->load_optional_class($subclass) && !$self->isa($subclass)) { |
41 | bless $self, $subclass; |
42 | $self->_rebless; |
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43 | } |
44 | } |
45 | } |
46 | |
47 | sub _table_columns { |
48 | my ($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 | }); |
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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) ]}}); |
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66 | $sth->execute; |
67 | |
68 | my @keydata; |
69 | |
70 | while (my $row = $sth->fetchrow_hashref) { |
c9373b79 |
71 | push @keydata, $row->{column_name}; |
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72 | } |
73 | |
74 | return \@keydata; |
75 | } |
76 | |
77 | sub _table_fk_info { |
78 | my ($self, $table) = @_; |
79 | |
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80 | # check if FK_NAME is supported |
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81 | |
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82 | my $dbh = $self->schema->storage->dbh; |
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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 | |
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105 | my $dbh = $self->schema->storage->dbh; |
106 | local $dbh->{FetchHashKeyName} = 'NAME_lc'; |
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107 | # hide "Object does not exist in this database." when trying to fetch fkeys |
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108 | local $dbh->{syb_err_handler} = sub { return $_[0] == 17461 ? 0 : 1 }; |
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109 | my $sth = $dbh->prepare(qq{sp_fkeys \@fktable_name = @{[ $dbh->quote($table) ]}}); |
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110 | $sth->execute; |
111 | |
112 | while (my $row = $sth->fetchrow_hashref) { |
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113 | my $fk = $row->{fk_name}; |
114 | next unless defined $fk; |
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115 | |
116 | push @{$local_cols->{$fk}}, $row->{fkcolumn_name}; |
117 | push @{$remote_cols->{$fk}}, $row->{pkcolumn_name}; |
118 | $remote_table->{$fk} = $row->{pktable_name}; |
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119 | } |
120 | |
121 | foreach my $fk (keys %$remote_table) { |
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122 | push @rels, { |
123 | local_columns => \@{$local_cols->{$fk}}, |
124 | remote_columns => \@{$remote_cols->{$fk}}, |
125 | remote_table => $remote_table->{$fk}, |
126 | }; |
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127 | |
128 | } |
129 | return \@rels; |
130 | } |
131 | |
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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; }; |
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139 | my $sth = $dbh->prepare(qq{sp_fkeys \@fktable_name = @{[ $dbh->quote($table) ]}}); |
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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 => $remote_table |
182 | }; |
183 | } |
184 | } |
185 | |
186 | return \@rels; |
187 | } |
188 | |
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189 | sub _table_uniq_info { |
190 | my ($self, $table) = @_; |
191 | |
0852b7b8 |
192 | local $SIG{__WARN__} = sub {}; |
193 | |
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194 | my $dbh = $self->schema->storage->dbh; |
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195 | local $dbh->{FetchHashKeyName} = 'NAME_lc'; |
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196 | my $sth = $dbh->prepare(qq{sp_helpconstraint \@objname=@{[ $dbh->quote($table) ]}, \@nomsg='nomsg'}); |
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197 | eval { $sth->execute }; |
198 | return if $@; |
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199 | |
200 | my $constraints; |
201 | while (my $row = $sth->fetchrow_hashref) { |
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202 | if (exists $row->{constraint_type}) { |
203 | my $type = $row->{constraint_type} || ''; |
204 | if ($type =~ /^unique/i) { |
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205 | my $name = $row->{constraint_name}; |
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206 | push @{$constraints->{$name}}, |
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207 | ( split /,/, $row->{constraint_keys} ); |
1e1839d1 |
208 | } |
209 | } else { |
210 | my $def = $row->{definition} || next; |
211 | next unless $def =~ /^unique/i; |
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212 | my $name = $row->{name}; |
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213 | my ($keys) = $def =~ /\((.*)\)/; |
214 | $keys =~ s/\s*//g; |
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215 | my @keys = split /,/ => $keys; |
1e1839d1 |
216 | push @{$constraints->{$name}}, @keys; |
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217 | } |
218 | } |
219 | |
220 | my @uniqs = map { [ $_ => $constraints->{$_} ] } keys %$constraints; |
221 | return \@uniqs; |
222 | } |
223 | |
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224 | # get the correct data types, defaults and size |
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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{ |
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232 | SELECT c.name name, bt.name base_type, ut.name user_type, cm.text deflt, c.prec prec, c.scale scale, c.length len |
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233 | FROM syscolumns c |
234 | JOIN sysobjects o ON c.id = o.id |
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235 | LEFT JOIN systypes bt ON c.type = bt.type |
236 | LEFT JOIN systypes ut ON c.usertype = ut.usertype |
2fb9a4b3 |
237 | LEFT JOIN syscomments cm |
238 | ON cm.id = CASE WHEN c.cdefault = 0 THEN c.computedcol ELSE c.cdefault END |
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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 = $sth->fetchall_hashref('name'); |
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244 | |
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245 | while (my ($col, $res) = each %$result) { |
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246 | my $data_type = $res->{data_type} = $info->{$col}{user_type} || $info->{$col}{base_type}; |
41968729 |
247 | |
248 | if ($data_type && $data_type =~ /^timestamp\z/i) { |
249 | $res->{inflate_datetime} = 0; |
250 | } |
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251 | |
252 | if (my $default = $info->{$col}{deflt}) { |
253 | if ($default =~ /^AS \s+ (\S+)/ix) { |
254 | my $function = $1; |
255 | $res->{default_value} = \$function; |
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256 | |
257 | if ($function =~ /^getdate\b/) { |
258 | $res->{inflate_datetime} = 1; |
259 | } |
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260 | |
261 | delete $res->{size}; |
262 | $res->{data_type} = undef; |
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263 | } |
264 | elsif ($default =~ /^DEFAULT \s+ (\S+)/ix) { |
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265 | my ($constant_default) = $1 =~ /^['"\[\]]?(.*?)['"\[\]]?\z/; |
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266 | $res->{default_value} = $constant_default; |
267 | } |
268 | } |
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269 | |
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270 | if (my $data_type = $res->{data_type}) { |
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271 | if ($data_type eq 'int') { |
272 | $data_type = $res->{data_type} = 'integer'; |
273 | } |
274 | elsif ($data_type eq 'decimal') { |
275 | $data_type = $res->{data_type} = 'numeric'; |
276 | } |
277 | |
278 | if ($data_type =~ /^(?:text|unitext|image|bigint|integer|smallint|tinyint|real|double|double precision|float|date|time|datetime|smalldatetime|money|smallmoney|timestamp|bit)\z/i) { |
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279 | delete $res->{size}; |
280 | } |
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281 | elsif ($data_type eq 'numeric') { |
282 | my ($prec, $scale) = @{$info->{$col}}{qw/prec scale/}; |
283 | |
284 | if ($prec == 18 && $scale == 0) { |
285 | delete $res->{size}; |
286 | } |
287 | else { |
288 | $res->{size} = [ $prec, $scale ]; |
289 | } |
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290 | } |
291 | elsif ($data_type =~ /^(?:unichar|univarchar)\z/i) { |
292 | $res->{size} /= 2; |
293 | } |
294 | } |
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295 | |
296 | if ($data_type eq 'float') { |
297 | $res->{data_type} = $info->{$col}{len} <= 4 ? 'real' : 'double precision'; |
298 | } |
db4d62ad |
299 | } |
300 | |
301 | return $result; |
302 | } |
303 | |
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304 | sub _extra_column_info { |
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305 | my ($self, $table, $column, $info, $dbi_info) = @_; |
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306 | my %extra_info; |
307 | |
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308 | my $dbh = $self->schema->storage->dbh; |
772367d3 |
309 | 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) ]}}); |
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310 | $sth->execute(); |
311 | |
312 | if ($sth->fetchrow_array) { |
313 | $extra_info{is_auto_increment} = 1; |
314 | } |
315 | |
316 | return \%extra_info; |
317 | } |
318 | |
319 | =head1 SEE ALSO |
320 | |
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321 | L<DBIx::Class::Schema::Loader::DBI::Sybase::Common>, |
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322 | L<DBIx::Class::Schema::Loader>, L<DBIx::Class::Schema::Loader::Base>, |
323 | L<DBIx::Class::Schema::Loader::DBI> |
324 | |
325 | =head1 AUTHOR |
326 | |
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327 | See L<DBIx::Class::Schema::Loader/AUTHOR> and L<DBIx::Class::Schema::Loader/CONTRIBUTORS>. |
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328 | |
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329 | =head1 LICENSE |
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330 | |
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331 | This library is free software; you can redistribute it and/or modify it under |
332 | the same terms as Perl itself. |
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333 | |
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334 | =cut |
335 | |
336 | 1; |