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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 %$constraints; |
171 | return \@uniqs; |
172 | } |
173 | |
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174 | sub _extra_column_info { |
175 | my ($self, $table, $column, $info, $dbi_info) = @_; |
176 | my %extra_info; |
177 | |
178 | my $dbh = $self->schema->storage->dbh; |
179 | |
180 | local $dbh->{LongReadLen} = 100000; |
181 | local $dbh->{LongTruncOk} = 1; |
182 | |
183 | my $sth = $dbh->prepare(<<'EOF'); |
184 | SELECT t.rdb$trigger_source |
185 | FROM rdb$triggers t |
186 | WHERE t.rdb$relation_name = ? |
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187 | AND t.rdb$system_flag = 0 -- user defined |
188 | AND t.rdb$trigger_type = 1 -- BEFORE INSERT |
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189 | EOF |
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190 | $sth->execute($table); |
191 | |
192 | while (my ($trigger) = $sth->fetchrow_array) { |
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193 | my @trig_cols = map { |
194 | /^"([^"]+)/ ? $1 : uc($1) |
195 | } $trigger =~ /new\.("?\w+"?)/ig; |
196 | |
197 | my ($quoted, $generator) = $trigger =~ |
198 | /(?: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; |
202 | |
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203 | if (first { $self->_uc($_) eq $self->_uc($column) } @trig_cols) { |
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204 | $extra_info{is_auto_increment} = 1; |
205 | $extra_info{sequence} = $generator; |
206 | last; |
207 | } |
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208 | } |
209 | } |
210 | |
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211 | # fix up DT types, no idea which other types are fucked |
212 | if ($info->{data_type} eq '11') { |
213 | $extra_info{data_type} = 'TIMESTAMP'; |
214 | } |
215 | elsif ($info->{data_type} eq '9') { |
216 | $extra_info{data_type} = 'DATE'; |
217 | } |
218 | |
219 | # get default |
220 | $sth = $dbh->prepare(<<'EOF'); |
221 | SELECT rf.rdb$default_source |
222 | FROM rdb$relation_fields rf |
223 | WHERE rf.rdb$relation_name = ? |
224 | AND rf.rdb$field_name = ? |
225 | EOF |
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226 | $sth->execute($table, $self->_uc($column)); |
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227 | my ($default_src) = $sth->fetchrow_array; |
228 | |
229 | if ($default_src && (my ($def) = $default_src =~ /^DEFAULT \s+ (\S+)/ix)) { |
230 | if (my ($quoted) = $def =~ /^'(.*?)'\z/) { |
231 | $extra_info{default_value} = $quoted; |
232 | } |
233 | else { |
234 | $extra_info{default_value} = $def =~ /^\d/ ? $def : \$def; |
235 | } |
236 | } |
237 | |
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238 | return \%extra_info; |
239 | } |
240 | |
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241 | =head1 SEE ALSO |
242 | |
243 | L<DBIx::Class::Schema::Loader>, L<DBIx::Class::Schema::Loader::Base>, |
244 | L<DBIx::Class::Schema::Loader::DBI> |
245 | |
246 | =head1 AUTHOR |
247 | |
248 | See L<DBIx::Class::Schema::Loader/AUTHOR> and L<DBIx::Class::Schema::Loader/CONTRIBUTORS>. |
249 | |
250 | =head1 LICENSE |
251 | |
252 | This library is free software; you can redistribute it and/or modify it under |
253 | the same terms as Perl itself. |
254 | |
255 | =cut |
256 | |
257 | 1; |