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1 | package DBIx::Class::Schema::Loader::DBI::InterBase; |
2 | |
3 | use strict; |
4 | use warnings; |
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5 | use namespace::autoclean; |
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6 | use Class::C3; |
7 | use base qw/DBIx::Class::Schema::Loader::DBI/; |
8 | use Carp::Clan qw/^DBIx::Class/; |
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9 | use List::Util 'first'; |
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10 | |
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11 | __PACKAGE__->mk_group_ro_accessors('simple', qw/ |
12 | unquoted_ddl |
13 | /); |
14 | |
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15 | our $VERSION = '0.06000'; |
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16 | |
17 | =head1 NAME |
18 | |
19 | DBIx::Class::Schema::Loader::DBI::InterBase - DBIx::Class::Schema::Loader::DBI |
20 | Firebird Implementation. |
21 | |
22 | =head1 DESCRIPTION |
23 | |
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24 | See L<DBIx::Class::Schema::Loader::Base> for available options. |
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25 | |
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26 | By default column names from unquoted DDL will be generated in uppercase, as |
27 | that is the only way they will work with quoting on. |
28 | |
29 | See the L</unquoted_ddl> option in this driver if you would like to have |
30 | lowercase column names. |
31 | |
32 | =head1 DRIVER OPTIONS |
33 | |
34 | =head2 unquoted_ddl |
35 | |
36 | Set this loader option if your DDL uses unquoted identifiers and you will not |
37 | use quoting (the L<quote_char|DBIx::Class::Storage::DBI/quote_char> option in |
38 | L<connect_info|DBIx::Class::Storage::DBI/connect_info>.) |
39 | |
40 | This will generate lowercase column names (as opposed to the actual uppercase |
41 | names) in your Result classes that will only work with quoting off. |
42 | |
43 | Mixed-case table and column names will be ignored when this option is on and |
44 | will not work with quoting turned off. |
45 | |
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46 | =cut |
47 | |
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48 | sub _is_case_sensitive { |
49 | my $self = shift; |
50 | |
51 | return $self->unquoted_ddl ? 0 : 1; |
52 | } |
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53 | |
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54 | sub _setup { |
55 | my $self = shift; |
56 | |
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57 | $self->next::method; |
58 | |
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59 | $self->schema->storage->sql_maker->name_sep('.'); |
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60 | |
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61 | if (not defined $self->unquoted_ddl) { |
62 | warn <<'EOF'; |
63 | |
64 | WARNING: Assuming mixed-case Firebird DDL, see the unquoted_ddl option in |
65 | perldoc DBIx::Class::Schema::Loader::DBI::InterBase |
66 | for more information. |
67 | |
68 | EOF |
69 | } |
70 | |
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71 | if (not $self->unquoted_ddl) { |
72 | $self->schema->storage->sql_maker->quote_char('"'); |
73 | } |
74 | else { |
75 | $self->schema->storage->sql_maker->quote_char(undef); |
76 | } |
77 | } |
78 | |
79 | sub _lc { |
80 | my ($self, $name) = @_; |
81 | |
82 | return $self->unquoted_ddl ? lc($name) : $name; |
83 | } |
84 | |
85 | sub _uc { |
86 | my ($self, $name) = @_; |
87 | |
88 | return $self->unquoted_ddl ? uc($name) : $name; |
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89 | } |
90 | |
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91 | sub _table_pk_info { |
92 | my ($self, $table) = @_; |
93 | |
94 | my $dbh = $self->schema->storage->dbh; |
95 | my $sth = $dbh->prepare(<<'EOF'); |
96 | SELECT iseg.rdb$field_name |
97 | FROM rdb$relation_constraints rc |
98 | JOIN rdb$index_segments iseg ON rc.rdb$index_name = iseg.rdb$index_name |
99 | WHERE rc.rdb$constraint_type = 'PRIMARY KEY' and rc.rdb$relation_name = ? |
100 | ORDER BY iseg.rdb$field_position |
101 | EOF |
102 | $sth->execute($table); |
103 | |
104 | my @keydata; |
105 | |
106 | while (my ($col) = $sth->fetchrow_array) { |
107 | s/^\s+//, s/\s+\z// for $col; |
108 | |
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109 | push @keydata, $self->_lc($col); |
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110 | } |
111 | |
112 | return \@keydata; |
113 | } |
114 | |
115 | sub _table_fk_info { |
116 | my ($self, $table) = @_; |
117 | |
118 | my ($local_cols, $remote_cols, $remote_table, @rels); |
119 | my $dbh = $self->schema->storage->dbh; |
120 | my $sth = $dbh->prepare(<<'EOF'); |
121 | SELECT rc.rdb$constraint_name fk, iseg.rdb$field_name local_col, ri.rdb$relation_name remote_tab, riseg.rdb$field_name remote_col |
122 | FROM rdb$relation_constraints rc |
123 | JOIN rdb$index_segments iseg ON rc.rdb$index_name = iseg.rdb$index_name |
124 | JOIN rdb$indices li ON rc.rdb$index_name = li.rdb$index_name |
125 | JOIN rdb$indices ri ON li.rdb$foreign_key = ri.rdb$index_name |
126 | JOIN rdb$index_segments riseg ON iseg.rdb$field_position = riseg.rdb$field_position and ri.rdb$index_name = riseg.rdb$index_name |
127 | WHERE rc.rdb$constraint_type = 'FOREIGN KEY' and rc.rdb$relation_name = ? |
128 | ORDER BY iseg.rdb$field_position |
129 | EOF |
130 | $sth->execute($table); |
131 | |
132 | while (my ($fk, $local_col, $remote_tab, $remote_col) = $sth->fetchrow_array) { |
133 | s/^\s+//, s/\s+\z// for $fk, $local_col, $remote_tab, $remote_col; |
134 | |
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135 | push @{$local_cols->{$fk}}, $self->_lc($local_col); |
136 | push @{$remote_cols->{$fk}}, $self->_lc($remote_col); |
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137 | $remote_table->{$fk} = $remote_tab; |
138 | } |
139 | |
140 | foreach my $fk (keys %$remote_table) { |
141 | push @rels, { |
142 | local_columns => $local_cols->{$fk}, |
143 | remote_columns => $remote_cols->{$fk}, |
144 | remote_table => $remote_table->{$fk}, |
145 | }; |
146 | } |
147 | return \@rels; |
148 | } |
149 | |
150 | sub _table_uniq_info { |
151 | my ($self, $table) = @_; |
152 | |
153 | my $dbh = $self->schema->storage->dbh; |
154 | my $sth = $dbh->prepare(<<'EOF'); |
155 | SELECT rc.rdb$constraint_name, iseg.rdb$field_name |
156 | FROM rdb$relation_constraints rc |
157 | JOIN rdb$index_segments iseg ON rc.rdb$index_name = iseg.rdb$index_name |
158 | WHERE rc.rdb$constraint_type = 'UNIQUE' and rc.rdb$relation_name = ? |
159 | ORDER BY iseg.rdb$field_position |
160 | EOF |
161 | $sth->execute($table); |
162 | |
163 | my $constraints; |
164 | while (my ($constraint_name, $column) = $sth->fetchrow_array) { |
165 | s/^\s+//, s/\s+\z// for $constraint_name, $column; |
166 | |
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167 | push @{$constraints->{$constraint_name}}, $self->_lc($column); |
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168 | } |
169 | |
170 | my @uniqs = map { [ $_ => $constraints->{$_} ] } keys %$constraints; |
171 | return \@uniqs; |
172 | } |
173 | |
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174 | sub _columns_info_for { |
175 | my $self = shift; |
176 | my ($table) = @_; |
177 | |
178 | my $result = $self->next::method(@_); |
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179 | |
180 | my $dbh = $self->schema->storage->dbh; |
181 | |
182 | local $dbh->{LongReadLen} = 100000; |
183 | local $dbh->{LongTruncOk} = 1; |
184 | |
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185 | while (my ($column, $info) = each %$result) { |
186 | my $sth = $dbh->prepare(<<'EOF'); |
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187 | SELECT t.rdb$trigger_source |
188 | FROM rdb$triggers t |
189 | WHERE t.rdb$relation_name = ? |
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190 | AND t.rdb$system_flag = 0 -- user defined |
191 | AND t.rdb$trigger_type = 1 -- BEFORE INSERT |
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192 | EOF |
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193 | $sth->execute($table); |
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194 | |
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195 | while (my ($trigger) = $sth->fetchrow_array) { |
196 | my @trig_cols = map { /^"([^"]+)/ ? $1 : uc($_) } $trigger =~ /new\.("?\w+"?)/ig; |
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197 | |
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198 | my ($quoted, $generator) = $trigger =~ /(?:gen_id\s* \( \s* |next \s* value \s* for \s*)(")?(\w+)/ix; |
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199 | |
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200 | if ($generator) { |
201 | $generator = uc $generator unless $quoted; |
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202 | |
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203 | if (first { $self->_uc($_) eq $self->_uc($column) } @trig_cols) { |
204 | $info->{is_auto_increment} = 1; |
205 | $info->{sequence} = $generator; |
206 | last; |
207 | } |
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208 | } |
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209 | } |
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210 | |
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211 | # fix up types |
212 | $sth = $dbh->prepare(<<'EOF'); |
213 | SELECT f.rdb$field_precision, f.rdb$field_scale, f.rdb$field_type, f.rdb$field_sub_type, t.rdb$type_name, st.rdb$type_name |
214 | FROM rdb$fields f |
215 | JOIN rdb$relation_fields rf ON rf.rdb$field_source = f.rdb$field_name |
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216 | LEFT JOIN rdb$types t ON f.rdb$field_type = t.rdb$type AND t.rdb$field_name = 'RDB$FIELD_TYPE' |
217 | LEFT JOIN rdb$types st ON f.rdb$field_sub_type = st.rdb$type AND st.rdb$field_name = 'RDB$FIELD_SUB_TYPE' |
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218 | WHERE rf.rdb$relation_name = ? |
219 | AND rf.rdb$field_name = ? |
220 | EOF |
221 | $sth->execute($table, $self->_uc($column)); |
222 | my ($precision, $scale, $type_num, $sub_type_num, $type_name, $sub_type_name) = $sth->fetchrow_array; |
223 | $scale = -$scale if $scale && $scale < 0; |
224 | |
225 | if ($type_name && $sub_type_name) { |
226 | s/\s+\z// for $type_name, $sub_type_name; |
227 | |
228 | # fixups primarily for DBD::InterBase |
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229 | if ($info->{data_type} =~ /^(?:integer|int|smallint|bigint|-9581)\z/) { |
230 | if ($precision && $type_name =~ /^(?:LONG|INT64)\z/ && $sub_type_name eq 'BLR') { |
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231 | $info->{data_type} = 'decimal'; |
232 | } |
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233 | elsif ($precision && $type_name =~ /^(?:LONG|SHORT|INT64)\z/ && $sub_type_name eq 'TEXT') { |
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234 | $info->{data_type} = 'numeric'; |
235 | } |
236 | elsif ((not $precision) && $type_name eq 'INT64' && $sub_type_name eq 'BINARY') { |
237 | $info->{data_type} = 'bigint'; |
238 | } |
239 | } |
240 | # ODBC makes regular blobs sub_type blr |
241 | elsif ($type_name eq 'BLOB') { |
242 | if ($sub_type_name eq 'BINARY') { |
243 | $info->{data_type} = 'blob'; |
244 | } |
245 | elsif ($sub_type_name eq 'TEXT') { |
246 | $info->{data_type} = 'blob sub_type text'; |
247 | } |
248 | } |
249 | } |
250 | |
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251 | if ($info->{data_type} =~ /^(?:decimal|numeric)\z/ && defined $precision && defined $scale) { |
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252 | if ($precision == 9 && $scale == 0) { |
253 | delete $info->{size}; |
254 | } |
255 | else { |
256 | $info->{size} = [$precision, $scale]; |
257 | } |
258 | } |
259 | |
260 | if ($info->{data_type} eq '11') { |
261 | $info->{data_type} = 'timestamp'; |
262 | } |
263 | elsif ($info->{data_type} eq '10') { |
264 | $info->{data_type} = 'time'; |
265 | } |
266 | elsif ($info->{data_type} eq '9') { |
267 | $info->{data_type} = 'date'; |
268 | } |
269 | elsif ($info->{data_type} eq 'character varying') { |
270 | $info->{data_type} = 'varchar'; |
271 | } |
272 | elsif ($info->{data_type} eq 'character') { |
273 | $info->{data_type} = 'char'; |
274 | } |
275 | elsif ($info->{data_type} eq 'real') { |
276 | $info->{data_type} = 'float'; |
277 | } |
278 | elsif ($info->{data_type} eq 'int64' || $info->{data_type} eq '-9581') { |
279 | # the constant is just in case, the query should pick up the type |
280 | $info->{data_type} = 'bigint'; |
281 | } |
282 | |
283 | # DBD::InterBase sets scale to '0' for some reason for char types |
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284 | if ($info->{data_type} =~ /^(?:char|varchar)\z/ && ref($info->{size}) eq 'ARRAY') { |
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285 | $info->{size} = $info->{size}[0]; |
286 | } |
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287 | elsif ($info->{data_type} !~ /^(?:char|varchar|numeric|decimal)\z/) { |
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288 | delete $info->{size}; |
289 | } |
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290 | |
291 | # get default |
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292 | delete $info->{default_value} if $info->{default_value} && $info->{default_value} eq 'NULL'; |
293 | |
294 | $sth = $dbh->prepare(<<'EOF'); |
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295 | SELECT rf.rdb$default_source |
296 | FROM rdb$relation_fields rf |
297 | WHERE rf.rdb$relation_name = ? |
298 | AND rf.rdb$field_name = ? |
299 | EOF |
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300 | $sth->execute($table, $self->_uc($column)); |
301 | my ($default_src) = $sth->fetchrow_array; |
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302 | |
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303 | if ($default_src && (my ($def) = $default_src =~ /^DEFAULT \s+ (\S+)/ix)) { |
304 | if (my ($quoted) = $def =~ /^'(.*?)'\z/) { |
305 | $info->{default_value} = $quoted; |
306 | } |
307 | else { |
308 | $info->{default_value} = $def =~ /^\d/ ? $def : \$def; |
309 | } |
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310 | } |
311 | } |
312 | |
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313 | return $result; |
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314 | } |
315 | |
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316 | =head1 SEE ALSO |
317 | |
318 | L<DBIx::Class::Schema::Loader>, L<DBIx::Class::Schema::Loader::Base>, |
319 | L<DBIx::Class::Schema::Loader::DBI> |
320 | |
321 | =head1 AUTHOR |
322 | |
323 | See L<DBIx::Class::Schema::Loader/AUTHOR> and L<DBIx::Class::Schema::Loader/CONTRIBUTORS>. |
324 | |
325 | =head1 LICENSE |
326 | |
327 | This library is free software; you can redistribute it and/or modify it under |
328 | the same terms as Perl itself. |
329 | |
330 | =cut |
331 | |
332 | 1; |
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333 | # vim:et sw=4 sts=4 tw=0: |