Commit | Line | Data |
996be9ee |
1 | package DBIx::Class::Schema::Loader::DBI::mysql; |
2 | |
3 | use strict; |
4 | use warnings; |
5 | use base 'DBIx::Class::Schema::Loader::DBI'; |
942bd5e0 |
6 | use mro 'c3'; |
c4a69b87 |
7 | use Carp::Clan qw/^DBIx::Class/; |
c0767caf |
8 | use List::Util 'first'; |
c4a69b87 |
9 | use List::MoreUtils 'any'; |
ea998e8e |
10 | use Try::Tiny; |
c0767caf |
11 | use namespace::clean; |
2fa86d8b |
12 | use DBIx::Class::Schema::Loader::Table (); |
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13 | |
6bb8fa3c |
14 | our $VERSION = '0.07013'; |
32f784fc |
15 | |
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16 | =head1 NAME |
17 | |
18 | DBIx::Class::Schema::Loader::DBI::mysql - DBIx::Class::Schema::Loader::DBI mysql Implementation. |
19 | |
996be9ee |
20 | =head1 DESCRIPTION |
21 | |
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22 | See L<DBIx::Class::Schema::Loader> and L<DBIx::Class::Schema::Loader::Base>. |
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23 | |
24 | =cut |
25 | |
bc1cb85e |
26 | sub _setup { |
27 | my $self = shift; |
28 | |
6ebd0f33 |
29 | $self->schema->storage->sql_maker->quote_char("`"); |
30 | $self->schema->storage->sql_maker->name_sep("."); |
31 | |
bc1cb85e |
32 | $self->next::method(@_); |
33 | |
34 | if (not defined $self->preserve_case) { |
35 | $self->preserve_case(0); |
36 | } |
c4a69b87 |
37 | |
38 | if ($self->db_schema && $self->db_schema->[0] eq '%') { |
39 | my @schemas = try { |
ba3e8f02 |
40 | $self->_show_databases; |
c4a69b87 |
41 | } |
42 | catch { |
43 | croak "no SHOW DATABASES privileges: $_"; |
44 | }; |
45 | |
46 | @schemas = grep { |
47 | my $schema = $_; |
ba3e8f02 |
48 | not any { lc($schema) eq lc($_) } $self->_system_schemas |
c4a69b87 |
49 | } @schemas; |
50 | |
51 | $self->db_schema(\@schemas); |
52 | } |
53 | } |
54 | |
ba3e8f02 |
55 | sub _show_databases { |
56 | my $self = shift; |
57 | |
58 | return map $_->[0], @{ $self->dbh->selectall_arrayref('SHOW DATABASES') }; |
59 | } |
60 | |
c4a69b87 |
61 | sub _system_schemas { |
62 | my $self = shift; |
63 | |
64 | return ($self->next::method(@_), 'mysql'); |
bc1cb85e |
65 | } |
66 | |
518472fa |
67 | sub _tables_list { |
bfb43060 |
68 | my ($self, $opts) = @_; |
518472fa |
69 | |
bfb43060 |
70 | return $self->next::method($opts, undef, undef); |
518472fa |
71 | } |
72 | |
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73 | sub _table_fk_info { |
74 | my ($self, $table) = @_; |
75 | |
c4a69b87 |
76 | my $table_def_ref = eval { $self->dbh->selectrow_arrayref("SHOW CREATE TABLE ".$table->sql_name) }; |
3de915bc |
77 | my $table_def = $table_def_ref->[1]; |
78 | |
79 | return [] if not $table_def; |
309e2aa1 |
80 | |
c4a69b87 |
81 | my $qt = qr/["`]/; |
82 | my $nqt = qr/[^"`]/; |
309e2aa1 |
83 | |
84 | my (@reldata) = ($table_def =~ |
c4a69b87 |
85 | /CONSTRAINT ${qt}${nqt}+${qt} FOREIGN KEY \($qt(.*)$qt\) REFERENCES (?:$qt($nqt+)$qt\.)?$qt($nqt+)$qt \($qt(.+)$qt\)/ig |
309e2aa1 |
86 | ); |
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87 | |
88 | my @rels; |
89 | while (scalar @reldata > 0) { |
c4a69b87 |
90 | my ($cols, $f_schema, $f_table, $f_cols) = splice @reldata, 0, 4; |
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91 | |
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92 | my @cols = map { s/$qt//g; $self->_lc($_) } |
be72dba7 |
93 | split(/$qt?\s*$qt?,$qt?\s*$qt?/, $cols); |
5223f24a |
94 | |
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95 | my @f_cols = map { s/$qt//g; $self->_lc($_) } |
be72dba7 |
96 | split(/$qt?\s*$qt?,$qt?\s*$qt?/, $f_cols); |
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97 | |
ba3e8f02 |
98 | # Match case of remote schema to that in SHOW DATABASES, if it's there |
99 | # and we have permissions to run SHOW DATABASES. |
100 | if ($f_schema) { |
101 | my $matched = first { |
102 | lc($_) eq lc($f_schema) |
103 | } try { $self->_show_databases }; |
104 | |
105 | $f_schema = $matched if $matched; |
106 | } |
107 | |
2fa86d8b |
108 | my $remote_table = do { |
109 | # Get ->tables_list to return tables from the remote schema, in case it is not in the db_schema list. |
110 | local $self->{db_schema} = [ $f_schema ] if $f_schema; |
111 | |
112 | first { |
113 | lc($_->name) eq lc($f_table) |
114 | && ((not $f_schema) || lc($_->schema) eq lc($f_schema)) |
115 | } $self->_tables_list; |
116 | }; |
117 | |
118 | # The table may not be in any database, or it may not have been found by the previous code block for whatever reason. |
119 | if (not $remote_table) { |
120 | my $remote_schema = $f_schema || $self->db_schema && @{ $self->db_schema } == 1 && $self->db_schema->[0]; |
121 | |
122 | $remote_table = DBIx::Class::Schema::Loader::Table->new( |
123 | loader => $self, |
124 | name => $f_table, |
125 | ($remote_schema ? ( |
126 | schema => $remote_schema, |
127 | ) : ()), |
128 | ); |
129 | } |
c0767caf |
130 | |
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131 | push(@rels, { |
132 | local_columns => \@cols, |
133 | remote_columns => \@f_cols, |
c0767caf |
134 | remote_table => $remote_table, |
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135 | }); |
136 | } |
137 | |
138 | return \@rels; |
139 | } |
140 | |
141 | # primary and unique info comes from the same sql statement, |
142 | # so cache it here for both routines to use |
143 | sub _mysql_table_get_keys { |
144 | my ($self, $table) = @_; |
145 | |
0a4273b7 |
146 | if(!exists($self->{_cache}->{_mysql_keys}->{$table->sql_name})) { |
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147 | my %keydata; |
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148 | my $sth = $self->dbh->prepare('SHOW INDEX FROM '.$table->sql_name); |
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149 | $sth->execute; |
150 | while(my $row = $sth->fetchrow_hashref) { |
151 | next if $row->{Non_unique}; |
152 | push(@{$keydata{$row->{Key_name}}}, |
bc1cb85e |
153 | [ $row->{Seq_in_index}, $self->_lc($row->{Column_name}) ] |
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154 | ); |
155 | } |
156 | foreach my $keyname (keys %keydata) { |
157 | my @ordered_cols = map { $_->[1] } sort { $a->[0] <=> $b->[0] } |
158 | @{$keydata{$keyname}}; |
159 | $keydata{$keyname} = \@ordered_cols; |
160 | } |
0a4273b7 |
161 | $self->{_cache}->{_mysql_keys}->{$table->sql_name} = \%keydata; |
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162 | } |
163 | |
0a4273b7 |
164 | return $self->{_cache}->{_mysql_keys}->{$table->sql_name}; |
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165 | } |
166 | |
167 | sub _table_pk_info { |
168 | my ( $self, $table ) = @_; |
169 | |
170 | return $self->_mysql_table_get_keys($table)->{PRIMARY}; |
171 | } |
172 | |
173 | sub _table_uniq_info { |
174 | my ( $self, $table ) = @_; |
175 | |
176 | my @uniqs; |
177 | my $keydata = $self->_mysql_table_get_keys($table); |
8ac8926d |
178 | foreach my $keyname (keys %$keydata) { |
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179 | next if $keyname eq 'PRIMARY'; |
180 | push(@uniqs, [ $keyname => $keydata->{$keyname} ]); |
181 | } |
182 | |
183 | return \@uniqs; |
184 | } |
185 | |
26334ec1 |
186 | sub _columns_info_for { |
187 | my $self = shift; |
188 | my ($table) = @_; |
189 | |
190 | my $result = $self->next::method(@_); |
191 | |
26334ec1 |
192 | while (my ($col, $info) = each %$result) { |
26334ec1 |
193 | if ($info->{data_type} eq 'int') { |
194 | $info->{data_type} = 'integer'; |
195 | } |
196 | elsif ($info->{data_type} eq 'double') { |
197 | $info->{data_type} = 'double precision'; |
198 | } |
698c11d8 |
199 | my $data_type = $info->{data_type}; |
200 | |
201 | delete $info->{size} if $data_type !~ /^(?: (?:var)?(?:char(?:acter)?|binary) | bit | year)\z/ix; |
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202 | |
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203 | # information_schema is available in 5.0+ |
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204 | my ($precision, $scale, $column_type, $default) = eval { $self->dbh->selectrow_array(<<'EOF', {}, $table, $col) }; |
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205 | SELECT numeric_precision, numeric_scale, column_type, column_default |
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206 | FROM information_schema.columns |
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207 | WHERE table_name = ? AND column_name = ? |
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208 | EOF |
698c11d8 |
209 | my $has_information_schema = not $@; |
33aa3462 |
210 | |
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211 | $column_type = '' if not defined $column_type; |
212 | |
698c11d8 |
213 | if ($data_type eq 'bit' && (not exists $info->{size})) { |
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214 | $info->{size} = $precision if defined $precision; |
215 | } |
698c11d8 |
216 | elsif ($data_type =~ /^(?:float|double precision|decimal)\z/i) { |
26334ec1 |
217 | if (defined $precision && defined $scale) { |
218 | if ($precision == 10 && $scale == 0) { |
219 | delete $info->{size}; |
220 | } |
221 | else { |
222 | $info->{size} = [$precision,$scale]; |
223 | } |
224 | } |
225 | } |
698c11d8 |
226 | elsif ($data_type eq 'year') { |
26334ec1 |
227 | if ($column_type =~ /\(2\)/) { |
228 | $info->{size} = 2; |
229 | } |
230 | elsif ($column_type =~ /\(4\)/ || $info->{size} == 4) { |
231 | delete $info->{size}; |
232 | } |
233 | } |
698c11d8 |
234 | elsif ($data_type =~ /^(?:date(?:time)?|timestamp)\z/) { |
57a9fc92 |
235 | if (not (defined $self->datetime_undef_if_invalid && $self->datetime_undef_if_invalid == 0)) { |
236 | $info->{datetime_undef_if_invalid} = 1; |
237 | } |
58333f16 |
238 | } |
698c11d8 |
239 | elsif ($data_type =~ /^(?:enum|set)\z/ && $has_information_schema |
240 | && $column_type =~ /^(?:enum|set)\(/) { |
241 | |
242 | delete $info->{extra}{list}; |
243 | |
e00d61ac |
244 | while ($column_type =~ /'((?:[^']* (?:''|\\')* [^']*)* [^\\'])',?/xg) { |
245 | my $el = $1; |
246 | $el =~ s/''/'/g; |
247 | push @{ $info->{extra}{list} }, $el; |
698c11d8 |
248 | } |
249 | } |
33aa3462 |
250 | |
251 | # Sometimes apparently there's a bug where default_value gets set to '' |
252 | # for things that don't actually have or support that default (like ints.) |
253 | if (exists $info->{default_value} && $info->{default_value} eq '') { |
254 | if ($has_information_schema) { |
255 | if (not defined $default) { |
256 | delete $info->{default_value}; |
257 | } |
258 | } |
259 | else { # just check if it's a char/text type, otherwise remove |
698c11d8 |
260 | delete $info->{default_value} unless $data_type =~ /char|text/i; |
33aa3462 |
261 | } |
262 | } |
26334ec1 |
263 | } |
264 | |
265 | return $result; |
266 | } |
267 | |
a8df0345 |
268 | sub _extra_column_info { |
f430297e |
269 | no warnings 'uninitialized'; |
45be2ce7 |
270 | my ($self, $table, $col, $info, $dbi_info) = @_; |
a8df0345 |
271 | my %extra_info; |
78b7ccaa |
272 | |
45be2ce7 |
273 | if ($dbi_info->{mysql_is_auto_increment}) { |
a8df0345 |
274 | $extra_info{is_auto_increment} = 1 |
275 | } |
45be2ce7 |
276 | if ($dbi_info->{mysql_type_name} =~ /\bunsigned\b/i) { |
46bef65f |
277 | $extra_info{extra}{unsigned} = 1; |
278 | } |
45be2ce7 |
279 | if ($dbi_info->{mysql_values}) { |
280 | $extra_info{extra}{list} = $dbi_info->{mysql_values}; |
8fdd52a2 |
281 | } |
3372cb43 |
282 | if ( lc($dbi_info->{COLUMN_DEF}) eq 'current_timestamp' |
283 | && lc($dbi_info->{mysql_type_name}) eq 'timestamp') { |
3facc532 |
284 | |
6e566cc4 |
285 | my $current_timestamp = 'current_timestamp'; |
286 | $extra_info{default_value} = \$current_timestamp; |
f430297e |
287 | } |
8fdd52a2 |
288 | |
a8df0345 |
289 | return \%extra_info; |
8fdd52a2 |
290 | } |
291 | |
db9c411a |
292 | sub _dbh_column_info { |
293 | my $self = shift; |
294 | |
295 | local $SIG{__WARN__} = sub { warn @_ |
296 | unless $_[0] =~ /^column_info: unrecognized column type/ }; |
297 | |
298 | $self->next::method(@_); |
299 | } |
300 | |
5c06aa08 |
301 | sub _table_comment { |
302 | my ( $self, $table ) = @_; |
303 | my $comment = $self->next::method($table); |
304 | if (not $comment) { |
ea998e8e |
305 | ($comment) = try { $self->schema->storage->dbh->selectrow_array( |
5c06aa08 |
306 | qq{SELECT table_comment |
307 | FROM information_schema.tables |
308 | WHERE table_schema = schema() |
309 | AND table_name = ? |
310 | }, undef, $table); |
ea998e8e |
311 | }; |
5c06aa08 |
312 | # InnoDB likes to auto-append crap. |
313 | if (not $comment) { |
314 | # Do nothing. |
315 | } |
316 | elsif ($comment =~ /^InnoDB free:/) { |
317 | $comment = undef; |
318 | } |
319 | else { |
320 | $comment =~ s/; InnoDB.*//; |
321 | } |
322 | } |
ea998e8e |
323 | return $comment; |
5c06aa08 |
324 | } |
325 | |
326 | sub _column_comment { |
327 | my ( $self, $table, $column_number, $column_name ) = @_; |
328 | my $comment = $self->next::method($table, $column_number, $column_name); |
329 | if (not $comment) { |
ea998e8e |
330 | ($comment) = try { $self->schema->storage->dbh->selectrow_array( |
5c06aa08 |
331 | qq{SELECT column_comment |
332 | FROM information_schema.columns |
333 | WHERE table_schema = schema() |
334 | AND table_name = ? |
335 | AND column_name = ? |
336 | }, undef, $table, $column_name); |
ea998e8e |
337 | }; |
5c06aa08 |
338 | } |
339 | return $comment; |
340 | } |
341 | |
996be9ee |
342 | =head1 SEE ALSO |
343 | |
344 | L<DBIx::Class::Schema::Loader>, L<DBIx::Class::Schema::Loader::Base>, |
345 | L<DBIx::Class::Schema::Loader::DBI> |
346 | |
be80bba7 |
347 | =head1 AUTHOR |
348 | |
9cc8e7e1 |
349 | See L<DBIx::Class::Schema::Loader/AUTHOR> and L<DBIx::Class::Schema::Loader/CONTRIBUTORS>. |
be80bba7 |
350 | |
351 | =head1 LICENSE |
352 | |
353 | This library is free software; you can redistribute it and/or modify it under |
354 | the same terms as Perl itself. |
355 | |
996be9ee |
356 | =cut |
357 | |
358 | 1; |
26334ec1 |
359 | # vim:et sw=4 sts=4 tw=0: |