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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 base qw/DBIx::Class::Schema::Loader::DBI/; |
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6 | use mro 'c3'; |
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7 | use Carp::Clan qw/^DBIx::Class/; |
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8 | use List::Util 'first'; |
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9 | use namespace::clean; |
c4a69b87 |
10 | use DBIx::Class::Schema::Loader::Table (); |
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11 | |
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12 | our $VERSION = '0.07020'; |
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13 | |
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14 | sub _supports_db_schema { 0 } |
15 | |
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16 | =head1 NAME |
17 | |
18 | DBIx::Class::Schema::Loader::DBI::InterBase - DBIx::Class::Schema::Loader::DBI |
19 | Firebird Implementation. |
20 | |
21 | =head1 DESCRIPTION |
22 | |
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23 | See L<DBIx::Class::Schema::Loader> and L<DBIx::Class::Schema::Loader::Base>. |
24 | |
25 | =head1 COLUMN NAME CASE ISSUES |
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26 | |
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27 | By default column names from unquoted DDL will be generated in lowercase, for |
28 | consistency with other backends. |
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29 | |
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30 | Set the L<preserve_case|DBIx::Class::Schema::Loader::Base/preserve_case> option |
31 | to true if you would like to have column names in the internal case, which is |
32 | uppercase for DDL that uses unquoted identifiers. |
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33 | |
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34 | Do not use quoting (the L<quote_char|DBIx::Class::Storage::DBI/quote_char> |
35 | option in L<connect_info|DBIx::Class::Storage::DBI/connect_info> when in the |
36 | default C<< preserve_case => 0 >> mode. |
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37 | |
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38 | Be careful to also not use any SQL reserved words in your DDL. |
39 | |
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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 | |
bc1cb85e |
46 | =cut |
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47 | |
ffb03c96 |
48 | sub _setup { |
49 | my $self = shift; |
50 | |
bc1cb85e |
51 | $self->next::method(@_); |
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52 | |
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53 | if (not defined $self->preserve_case) { |
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54 | $self->preserve_case(0); |
ec957051 |
55 | } |
c4a69b87 |
56 | elsif ($self->preserve_case) { |
18e84656 |
57 | $self->schema->storage->sql_maker->quote_char('"'); |
c930f78b |
58 | $self->schema->storage->sql_maker->name_sep('.'); |
18e84656 |
59 | } |
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60 | |
61 | if ($self->db_schema) { |
62 | carp "db_schema is not supported on Firebird"; |
63 | |
64 | if ($self->db_schema->[0] eq '%') { |
65 | $self->db_schema(undef); |
66 | } |
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67 | } |
68 | } |
69 | |
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70 | sub _table_pk_info { |
71 | my ($self, $table) = @_; |
72 | |
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73 | my $sth = $self->dbh->prepare(<<'EOF'); |
4cbddf8d |
74 | SELECT iseg.rdb$field_name |
75 | FROM rdb$relation_constraints rc |
76 | JOIN rdb$index_segments iseg ON rc.rdb$index_name = iseg.rdb$index_name |
77 | WHERE rc.rdb$constraint_type = 'PRIMARY KEY' and rc.rdb$relation_name = ? |
78 | ORDER BY iseg.rdb$field_position |
79 | EOF |
c4a69b87 |
80 | $sth->execute($table->name); |
4cbddf8d |
81 | |
82 | my @keydata; |
83 | |
84 | while (my ($col) = $sth->fetchrow_array) { |
85 | s/^\s+//, s/\s+\z// for $col; |
86 | |
18e84656 |
87 | push @keydata, $self->_lc($col); |
4cbddf8d |
88 | } |
89 | |
90 | return \@keydata; |
91 | } |
92 | |
93 | sub _table_fk_info { |
94 | my ($self, $table) = @_; |
95 | |
96 | my ($local_cols, $remote_cols, $remote_table, @rels); |
c4a69b87 |
97 | my $sth = $self->dbh->prepare(<<'EOF'); |
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98 | SELECT rc.rdb$constraint_name fk, iseg.rdb$field_name local_col, ri.rdb$relation_name remote_tab, riseg.rdb$field_name remote_col |
99 | FROM rdb$relation_constraints rc |
100 | JOIN rdb$index_segments iseg ON rc.rdb$index_name = iseg.rdb$index_name |
101 | JOIN rdb$indices li ON rc.rdb$index_name = li.rdb$index_name |
102 | JOIN rdb$indices ri ON li.rdb$foreign_key = ri.rdb$index_name |
103 | JOIN rdb$index_segments riseg ON iseg.rdb$field_position = riseg.rdb$field_position and ri.rdb$index_name = riseg.rdb$index_name |
104 | WHERE rc.rdb$constraint_type = 'FOREIGN KEY' and rc.rdb$relation_name = ? |
105 | ORDER BY iseg.rdb$field_position |
106 | EOF |
c4a69b87 |
107 | $sth->execute($table->name); |
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108 | |
109 | while (my ($fk, $local_col, $remote_tab, $remote_col) = $sth->fetchrow_array) { |
110 | s/^\s+//, s/\s+\z// for $fk, $local_col, $remote_tab, $remote_col; |
111 | |
18e84656 |
112 | push @{$local_cols->{$fk}}, $self->_lc($local_col); |
113 | push @{$remote_cols->{$fk}}, $self->_lc($remote_col); |
c4a69b87 |
114 | $remote_table->{$fk} = DBIx::Class::Schema::Loader::Table->new( |
115 | loader => $self, |
116 | name => $remote_tab, |
117 | ($self->db_schema ? ( |
118 | schema => $self->db_schema->[0], |
119 | ignore_schema => 1, |
120 | ) : ()), |
121 | ); |
4cbddf8d |
122 | } |
123 | |
124 | foreach my $fk (keys %$remote_table) { |
125 | push @rels, { |
126 | local_columns => $local_cols->{$fk}, |
127 | remote_columns => $remote_cols->{$fk}, |
128 | remote_table => $remote_table->{$fk}, |
129 | }; |
130 | } |
131 | return \@rels; |
132 | } |
133 | |
134 | sub _table_uniq_info { |
135 | my ($self, $table) = @_; |
136 | |
c4a69b87 |
137 | my $sth = $self->dbh->prepare(<<'EOF'); |
4cbddf8d |
138 | SELECT rc.rdb$constraint_name, iseg.rdb$field_name |
139 | FROM rdb$relation_constraints rc |
140 | JOIN rdb$index_segments iseg ON rc.rdb$index_name = iseg.rdb$index_name |
141 | WHERE rc.rdb$constraint_type = 'UNIQUE' and rc.rdb$relation_name = ? |
142 | ORDER BY iseg.rdb$field_position |
143 | EOF |
c4a69b87 |
144 | $sth->execute($table->name); |
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145 | |
146 | my $constraints; |
147 | while (my ($constraint_name, $column) = $sth->fetchrow_array) { |
148 | s/^\s+//, s/\s+\z// for $constraint_name, $column; |
149 | |
18e84656 |
150 | push @{$constraints->{$constraint_name}}, $self->_lc($column); |
4cbddf8d |
151 | } |
152 | |
153 | my @uniqs = map { [ $_ => $constraints->{$_} ] } keys %$constraints; |
154 | return \@uniqs; |
155 | } |
156 | |
cf0ba25b |
157 | sub _columns_info_for { |
158 | my $self = shift; |
159 | my ($table) = @_; |
160 | |
161 | my $result = $self->next::method(@_); |
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162 | |
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163 | local $self->dbh->{LongReadLen} = 100000; |
164 | local $self->dbh->{LongTruncOk} = 1; |
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165 | |
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166 | while (my ($column, $info) = each %$result) { |
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167 | my $data_type = $info->{data_type}; |
168 | |
169 | my $sth = $self->dbh->prepare(<<'EOF'); |
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170 | SELECT t.rdb$trigger_source |
171 | FROM rdb$triggers t |
172 | WHERE t.rdb$relation_name = ? |
93e8c513 |
173 | AND t.rdb$system_flag = 0 -- user defined |
174 | AND t.rdb$trigger_type = 1 -- BEFORE INSERT |
45be2ce7 |
175 | EOF |
c4a69b87 |
176 | $sth->execute($table->name); |
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177 | |
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178 | while (my ($trigger) = $sth->fetchrow_array) { |
179 | my @trig_cols = map { /^"([^"]+)/ ? $1 : uc($_) } $trigger =~ /new\.("?\w+"?)/ig; |
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180 | |
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181 | my ($quoted, $generator) = $trigger =~ /(?:gen_id\s* \( \s* |next \s* value \s* for \s*)(")?(\w+)/ix; |
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182 | |
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183 | if ($generator) { |
184 | $generator = uc $generator unless $quoted; |
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185 | |
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186 | if (first { $self->_uc($_) eq $self->_uc($column) } @trig_cols) { |
187 | $info->{is_auto_increment} = 1; |
188 | $info->{sequence} = $generator; |
189 | last; |
190 | } |
0e0a4941 |
191 | } |
45be2ce7 |
192 | } |
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193 | |
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194 | # fix up types |
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195 | $sth = $self->dbh->prepare(<<'EOF'); |
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196 | SELECT f.rdb$field_precision, f.rdb$field_scale, f.rdb$field_type, f.rdb$field_sub_type, f.rdb$character_set_id, f.rdb$character_length, t.rdb$type_name, st.rdb$type_name |
cf0ba25b |
197 | FROM rdb$fields f |
198 | JOIN rdb$relation_fields rf ON rf.rdb$field_source = f.rdb$field_name |
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199 | LEFT JOIN rdb$types t ON f.rdb$field_type = t.rdb$type AND t.rdb$field_name = 'RDB$FIELD_TYPE' |
200 | LEFT JOIN rdb$types st ON f.rdb$field_sub_type = st.rdb$type AND st.rdb$field_name = 'RDB$FIELD_SUB_TYPE' |
cf0ba25b |
201 | WHERE rf.rdb$relation_name = ? |
202 | AND rf.rdb$field_name = ? |
203 | EOF |
c4a69b87 |
204 | $sth->execute($table->name, $self->_uc($column)); |
5111e5d0 |
205 | my ($precision, $scale, $type_num, $sub_type_num, $char_set_id, $char_length, $type_name, $sub_type_name) = $sth->fetchrow_array; |
cf0ba25b |
206 | $scale = -$scale if $scale && $scale < 0; |
207 | |
208 | if ($type_name && $sub_type_name) { |
209 | s/\s+\z// for $type_name, $sub_type_name; |
210 | |
211 | # fixups primarily for DBD::InterBase |
c4a69b87 |
212 | if ($data_type =~ /^(?:integer|int|smallint|bigint|-9581)\z/) { |
9dc968df |
213 | if ($precision && $type_name =~ /^(?:LONG|INT64)\z/ && $sub_type_name eq 'BLR') { |
cf0ba25b |
214 | $info->{data_type} = 'decimal'; |
215 | } |
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216 | elsif ($precision && $type_name =~ /^(?:LONG|SHORT|INT64)\z/ && $sub_type_name eq 'TEXT') { |
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217 | $info->{data_type} = 'numeric'; |
218 | } |
219 | elsif ((not $precision) && $type_name eq 'INT64' && $sub_type_name eq 'BINARY') { |
220 | $info->{data_type} = 'bigint'; |
221 | } |
222 | } |
223 | # ODBC makes regular blobs sub_type blr |
224 | elsif ($type_name eq 'BLOB') { |
225 | if ($sub_type_name eq 'BINARY') { |
226 | $info->{data_type} = 'blob'; |
227 | } |
228 | elsif ($sub_type_name eq 'TEXT') { |
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229 | if (defined $char_set_id && $char_set_id == 3) { |
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230 | $info->{data_type} = 'blob sub_type text character set unicode_fss'; |
231 | } |
232 | else { |
233 | $info->{data_type} = 'blob sub_type text'; |
234 | } |
cf0ba25b |
235 | } |
236 | } |
237 | } |
238 | |
c4a69b87 |
239 | $data_type = $info->{data_type}; |
240 | |
241 | if ($data_type =~ /^(?:decimal|numeric)\z/ && defined $precision && defined $scale) { |
cf0ba25b |
242 | if ($precision == 9 && $scale == 0) { |
243 | delete $info->{size}; |
244 | } |
245 | else { |
246 | $info->{size} = [$precision, $scale]; |
247 | } |
248 | } |
249 | |
c4a69b87 |
250 | if ($data_type eq '11') { |
cf0ba25b |
251 | $info->{data_type} = 'timestamp'; |
252 | } |
c4a69b87 |
253 | elsif ($data_type eq '10') { |
cf0ba25b |
254 | $info->{data_type} = 'time'; |
255 | } |
c4a69b87 |
256 | elsif ($data_type eq '9') { |
cf0ba25b |
257 | $info->{data_type} = 'date'; |
258 | } |
c4a69b87 |
259 | elsif ($data_type eq 'character varying') { |
cf0ba25b |
260 | $info->{data_type} = 'varchar'; |
261 | } |
c4a69b87 |
262 | elsif ($data_type eq 'character') { |
cf0ba25b |
263 | $info->{data_type} = 'char'; |
264 | } |
c4a69b87 |
265 | elsif ($data_type eq 'float') { |
28d53000 |
266 | $info->{data_type} = 'real'; |
267 | } |
c4a69b87 |
268 | elsif ($data_type eq 'int64' || $data_type eq '-9581') { |
cf0ba25b |
269 | # the constant is just in case, the query should pick up the type |
270 | $info->{data_type} = 'bigint'; |
271 | } |
272 | |
c4a69b87 |
273 | $data_type = $info->{data_type}; |
274 | |
275 | if ($data_type =~ /^(?:char|varchar)\z/) { |
5111e5d0 |
276 | $info->{size} = $char_length; |
277 | |
4a01c33f |
278 | if (defined $char_set_id && $char_set_id == 3) { |
5111e5d0 |
279 | $info->{data_type} .= '(x) character set unicode_fss'; |
280 | } |
cf0ba25b |
281 | } |
c4a69b87 |
282 | elsif ($data_type !~ /^(?:numeric|decimal)\z/) { |
cf0ba25b |
283 | delete $info->{size}; |
284 | } |
4145a6f3 |
285 | |
286 | # get default |
cf0ba25b |
287 | delete $info->{default_value} if $info->{default_value} && $info->{default_value} eq 'NULL'; |
288 | |
c4a69b87 |
289 | $sth = $self->dbh->prepare(<<'EOF'); |
4145a6f3 |
290 | SELECT rf.rdb$default_source |
291 | FROM rdb$relation_fields rf |
292 | WHERE rf.rdb$relation_name = ? |
293 | AND rf.rdb$field_name = ? |
294 | EOF |
c4a69b87 |
295 | $sth->execute($table->name, $self->_uc($column)); |
cf0ba25b |
296 | my ($default_src) = $sth->fetchrow_array; |
4145a6f3 |
297 | |
cf0ba25b |
298 | if ($default_src && (my ($def) = $default_src =~ /^DEFAULT \s+ (\S+)/ix)) { |
299 | if (my ($quoted) = $def =~ /^'(.*?)'\z/) { |
300 | $info->{default_value} = $quoted; |
301 | } |
302 | else { |
2a1ff2ee |
303 | $info->{default_value} = $def =~ /^-?\d/ ? $def : \$def; |
cf0ba25b |
304 | } |
4145a6f3 |
305 | } |
6e566cc4 |
306 | |
307 | ${ $info->{default_value} } = 'current_timestamp' |
308 | if ref $info->{default_value} && ${ $info->{default_value} } eq 'CURRENT_TIMESTAMP'; |
4145a6f3 |
309 | } |
310 | |
cf0ba25b |
311 | return $result; |
45be2ce7 |
312 | } |
313 | |
4cbddf8d |
314 | =head1 SEE ALSO |
315 | |
316 | L<DBIx::Class::Schema::Loader>, L<DBIx::Class::Schema::Loader::Base>, |
317 | L<DBIx::Class::Schema::Loader::DBI> |
318 | |
319 | =head1 AUTHOR |
320 | |
321 | See L<DBIx::Class::Schema::Loader/AUTHOR> and L<DBIx::Class::Schema::Loader/CONTRIBUTORS>. |
322 | |
323 | =head1 LICENSE |
324 | |
325 | This library is free software; you can redistribute it and/or modify it under |
326 | the same terms as Perl itself. |
327 | |
328 | =cut |
329 | |
330 | 1; |
cf0ba25b |
331 | # vim:et sw=4 sts=4 tw=0: |