Commit | Line | Data |
14d7eb56 |
1 | package SQL::Translator::Producer::GraphViz; |
2 | |
3 | # ------------------------------------------------------------------- |
6264cdc8 |
4 | # Copyright (C) 2002-2009 SQLFairy Authors |
14d7eb56 |
5 | # |
6 | # This program is free software; you can redistribute it and/or |
7 | # modify it under the terms of the GNU General Public License as |
8 | # published by the Free Software Foundation; version 2. |
9 | # |
10 | # This program is distributed in the hope that it will be useful, but |
11 | # WITHOUT ANY WARRANTY; without even the implied warranty of |
12 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
13 | # General Public License for more details. |
14 | # |
15 | # You should have received a copy of the GNU General Public License |
16 | # along with this program; if not, write to the Free Software |
17 | # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
18 | # 02111-1307 USA |
19 | # ------------------------------------------------------------------- |
20 | |
d491c962 |
21 | =pod |
22 | |
23 | =head1 NAME |
24 | |
25 | SQL::Translator::Producer::GraphViz - GraphViz producer for SQL::Translator |
26 | |
27 | =head1 SYNOPSIS |
28 | |
29 | use SQL::Translator; |
30 | |
31 | my $trans = new SQL::Translator( |
32 | from => 'MySQL', # or your db of choice |
33 | to => 'GraphViz', |
34 | producer_args => { |
35 | out_file => 'schema.png', |
36 | add_color => 1, |
37 | show_constraints => 1, |
38 | show_datatypes => 1, |
9d93edab |
39 | show_sizes => 1 |
d491c962 |
40 | } |
41 | ) or die SQL::Translator->error; |
42 | |
43 | $trans->translate or die $trans->error; |
44 | |
45 | =head1 DESCRIPTION |
46 | |
47 | Creates a graph of a schema using the amazing graphviz |
48 | (see http://www.graphviz.org/) application (via |
49 | the GraphViz module). It's nifty--you should try it! |
50 | |
51 | =head1 PRODUCER ARGS |
52 | |
53 | =over 4 |
54 | |
55 | =item * out_file |
56 | |
d8324f08 |
57 | The name of the file where the resulting GraphViz output will be |
58 | written. Alternatively an open filehandle can be supplied. If |
59 | undefined (the default) - the result is returned as a string. |
d491c962 |
60 | |
61 | =item * layout (DEFAULT: 'dot') |
62 | |
63 | determines which layout algorithm GraphViz will use; possible |
64 | values are 'dot' (the default GraphViz layout for directed graph |
65 | layouts), 'neato' (for undirected graph layouts - spring model) |
66 | or 'twopi' (for undirected graph layouts - circular) |
67 | |
68 | =item * node_shape (DEFAULT: 'record') |
69 | |
70 | sets the node shape of each table in the graph; this can be |
71 | one of 'record', 'plaintext', 'ellipse', 'circle', 'egg', |
72 | 'triangle', 'box', 'diamond', 'trapezium', 'parallelogram', |
73 | 'house', 'hexagon', or 'octagon' |
74 | |
75 | =item * output_type (DEFAULT: 'png') |
76 | |
77 | sets the file type of the output graphic; possible values are |
78 | 'ps', 'hpgl', 'pcl', 'mif', 'pic', 'gd', 'gd2', 'gif', 'jpeg', |
79 | 'png', 'wbmp', 'cmap', 'ismap', 'imap', 'vrml', 'vtx', 'mp', |
80 | 'fig', 'svg', 'canon', 'plain' or 'text' (see GraphViz for |
81 | details on each of these) |
82 | |
83 | =item * width (DEFAULT: 8.5) |
84 | |
85 | width (in inches) of the output graphic |
86 | |
87 | =item * height (DEFAULT: 11) |
88 | |
89 | height (in inches) of the output grahic |
90 | |
027cebc7 |
91 | =item * fontsize |
92 | |
93 | custom font size for node and edge labels (note that arbitrarily large |
94 | sizes may be ignored due to page size or graph size constraints) |
95 | |
9d93edab |
96 | =item * fontname |
027cebc7 |
97 | |
98 | custom font name (or full path to font file) for node, edge, and graph |
99 | labels |
100 | |
9d93edab |
101 | =item * nodeattrs |
027cebc7 |
102 | |
103 | reference to a hash of node attribute names and their values; these |
104 | may override general fontname or fontsize parameter |
105 | |
9d93edab |
106 | =item * edgeattrs |
027cebc7 |
107 | |
108 | reference to a hash of edge attribute names and their values; these |
109 | may override general fontname or fontsize parameter |
110 | |
9d93edab |
111 | =item * graphattrs |
027cebc7 |
112 | |
113 | reference to a hash of graph attribute names and their values; these |
114 | may override the general fontname parameter |
115 | |
d491c962 |
116 | =item * show_fields (DEFAULT: true) |
117 | |
118 | if set to a true value, the names of the colums in a table will |
119 | be displayed in each table's node |
120 | |
121 | =item * show_fk_only |
122 | |
123 | if set to a true value, only columns which are foreign keys |
124 | will be displayed in each table's node |
125 | |
126 | =item * show_datatypes |
127 | |
128 | if set to a true value, the datatype of each column will be |
129 | displayed next to each column's name; this option will have no |
130 | effect if the value of show_fields is set to false |
131 | |
9d93edab |
132 | =item * show_sizes |
d491c962 |
133 | |
134 | if set to a true value, the size (in bytes) of each CHAR and |
135 | VARCHAR column will be displayed in parentheses next to the |
136 | column's name; this option will have no effect if the value of |
137 | show_fields is set to false |
138 | |
139 | =item * show_constraints |
140 | |
141 | if set to a true value, a field's constraints (i.e., its |
142 | primary-key-ness, its foreign-key-ness and/or its uniqueness) |
143 | will appear as a comma-separated list in brackets next to the |
144 | field's name; this option will have no effect if the value of |
145 | show_fields is set to false |
146 | |
147 | =item * add_color |
148 | |
149 | if set to a true value, the graphic will have a background |
150 | color of 'lightgoldenrodyellow'; otherwise the background |
151 | color will be white |
152 | |
153 | =item * natural_join |
154 | |
155 | if set to a true value, the make_natural_join method of |
156 | SQL::Translator::Schema will be called before generating the |
157 | graph; a true value for join_pk_only (see below) implies a |
158 | true value for this option |
159 | |
160 | =item * join_pk_only |
161 | |
162 | the value of this option will be passed as the value of the |
163 | like-named argument in the make_natural_join method (see |
164 | natural_join above) of SQL::Translator::Schema, if either the |
165 | value of this option or the natural_join option is set to true |
166 | |
167 | =item * skip_fields |
168 | |
169 | the value of this option will be passed as the value of the |
170 | like-named argument in the make_natural_join method (see |
171 | natural_join above) of SQL::Translator::Schema, if either |
172 | the natural_join or join_pk_only options has a true value |
173 | |
b7478526 |
174 | =item * show_indexes |
175 | |
176 | if set to a true value, each record will also show the indexes |
177 | set on each table. it describes the index types along with |
178 | which columns are included in the index. this option requires |
179 | that show_fields is a true value as well |
180 | |
4d5d28cb |
181 | =item * show_index_names |
d6d6b205 |
182 | |
183 | if show_indexes is set to a true value, then the value of this |
184 | parameter determines whether or not to print names of indexes. |
d8324f08 |
185 | if show_index_names is false, then a list of indexed columns |
d6d6b205 |
186 | will appear below the field list. otherwise, it will be a list |
187 | prefixed with the name of each index. it defaults to true. |
188 | |
b7478526 |
189 | =item * friendly_ints |
190 | |
191 | if set to a true value, each integer type field will be displayed |
d44b5f54 |
192 | as a smallint, integer or bigint depending on the field's |
b7478526 |
193 | associated size parameter. this only applies for the 'integer' |
194 | type (and not the lowercase 'int' type, which is assumed to be a |
195 | 32-bit integer). |
196 | |
d44b5f54 |
197 | =item * friendly_ints_extended |
198 | |
199 | if set to a true value, the friendly ints displayed will take into |
200 | account the non-standard types, 'tinyint' and 'mediumint' (which, |
201 | as far as I am aware, is only implemented in MySQL) |
202 | |
d491c962 |
203 | =back |
204 | |
205 | =cut |
206 | |
14d7eb56 |
207 | use strict; |
208 | use GraphViz; |
997f14b2 |
209 | use SQL::Translator::Schema::Constants; |
14d7eb56 |
210 | use SQL::Translator::Utils qw(debug); |
d8324f08 |
211 | use Scalar::Util qw/openhandle/; |
14d7eb56 |
212 | |
213 | use vars qw[ $VERSION $DEBUG ]; |
da06ac74 |
214 | $VERSION = '1.99'; |
14d7eb56 |
215 | $DEBUG = 0 unless defined $DEBUG; |
216 | |
217 | use constant VALID_LAYOUT => { |
218 | dot => 1, |
219 | neato => 1, |
220 | twopi => 1, |
221 | }; |
222 | |
223 | use constant VALID_NODE_SHAPE => { |
224 | record => 1, |
225 | plaintext => 1, |
226 | ellipse => 1, |
227 | circle => 1, |
228 | egg => 1, |
229 | triangle => 1, |
230 | box => 1, |
231 | diamond => 1, |
232 | trapezium => 1, |
233 | parallelogram => 1, |
234 | house => 1, |
235 | hexagon => 1, |
236 | octagon => 1, |
237 | }; |
238 | |
14d7eb56 |
239 | sub produce { |
997f14b2 |
240 | my $t = shift; |
241 | my $schema = $t->schema; |
14d7eb56 |
242 | my $args = $t->producer_args; |
243 | local $DEBUG = $t->debug; |
14d7eb56 |
244 | |
59cbb03f |
245 | my $out_file = $args->{'out_file'} || ''; |
246 | my $layout = $args->{'layout'} || 'dot'; |
247 | my $node_shape = $args->{'node_shape'} || 'record'; |
248 | my $output_type = $args->{'output_type'} || 'png'; |
249 | my $width = defined $args->{'width'} |
250 | ? $args->{'width'} : 8.5; |
251 | my $height = defined $args->{'height'} |
252 | ? $args->{'height'} : 11; |
027cebc7 |
253 | my $fontsize = $args->{'fontsize'}; |
254 | my $fontname = $args->{'fontname'}; |
255 | my $edgeattrs = $args->{'edgeattrs'} || {}; |
256 | my $graphattrs = $args->{'graphattrs'} || {}; |
257 | my $nodeattrs = $args->{'nodeattrs'} || {}; |
59cbb03f |
258 | my $show_fields = defined $args->{'show_fields'} |
259 | ? $args->{'show_fields'} : 1; |
260 | my $add_color = $args->{'add_color'}; |
261 | my $natural_join = $args->{'natural_join'}; |
262 | my $show_fk_only = $args->{'show_fk_only'}; |
263 | my $show_datatypes = $args->{'show_datatypes'}; |
264 | my $show_sizes = $args->{'show_sizes'}; |
b7478526 |
265 | my $show_indexes = $args->{'show_indexes'}; |
4d5d28cb |
266 | my $show_index_names = defined $args->{'show_index_names'} ? $args->{'show_index_names'} : 1; |
b7478526 |
267 | my $friendly_ints = $args->{'friendly_ints'}; |
d44b5f54 |
268 | my $friendly_ints_ex = $args->{'friendly_ints_extended'}; |
37ce746e |
269 | my $show_constraints = $args->{'show_constraints'}; |
59cbb03f |
270 | my $join_pk_only = $args->{'join_pk_only'}; |
9d93edab |
271 | my $skip_fields = $args->{'skip_fields'} || ''; |
272 | my %skip = map { s/^\s+|\s+$//g; length $_ ? ($_, 1) : () } |
59cbb03f |
273 | split ( /,/, $skip_fields ); |
274 | $natural_join ||= $join_pk_only; |
14d7eb56 |
275 | |
997f14b2 |
276 | $schema->make_natural_joins( |
277 | join_pk_only => $join_pk_only, |
278 | skip_fields => $args->{'skip_fields'}, |
279 | ) if $natural_join; |
280 | |
14d7eb56 |
281 | die "Invalid layout '$layout'" unless VALID_LAYOUT->{ $layout }; |
14d7eb56 |
282 | die "Invalid node shape'$node_shape'" |
283 | unless VALID_NODE_SHAPE->{ $node_shape }; |
284 | |
e36752ea |
285 | for ( $height, $width ) { |
286 | $_ = 0 unless $_ =~ /^\d+(.\d)?$/; |
287 | $_ = 0 if $_ < 0; |
288 | } |
289 | |
e36752ea |
290 | my %args = ( |
14d7eb56 |
291 | directed => $natural_join ? 0 : 1, |
292 | layout => $layout, |
293 | no_overlap => 1, |
294 | bgcolor => $add_color ? 'lightgoldenrodyellow' : 'white', |
295 | node => { |
296 | shape => $node_shape, |
297 | style => 'filled', |
027cebc7 |
298 | fillcolor => 'white', |
299 | }, |
e36752ea |
300 | ); |
301 | $args{'width'} = $width if $width; |
302 | $args{'height'} = $height if $height; |
027cebc7 |
303 | # set fontsize for edge and node labels if specified |
304 | if ($fontsize) { |
305 | $args{'node'}->{'fontsize'} = $fontsize; |
306 | $args{'edge'} = {} unless $args{'edge'}; |
307 | $args{'edge'}->{'fontsize'} = $fontsize; |
308 | } |
309 | # set the font name globally for node, edge, and graph labels if |
310 | # specified (use node, edge, or graph attributes for individual |
311 | # font specification) |
312 | if ($fontname) { |
313 | $args{'node'}->{'fontname'} = $fontname; |
314 | $args{'edge'} = {} unless $args{'edge'}; |
315 | $args{'edge'}->{'fontname'} = $fontname; |
316 | $args{'graph'} = {} unless $args{'graph'}; |
317 | $args{'graph'}->{'fontname'} = $fontname; |
318 | } |
319 | # set additional node, edge, and graph attributes; these may |
320 | # possibly override ones set before |
321 | while (my ($key,$val) = each %$nodeattrs) { |
322 | $args{'node'}->{$key} = $val; |
323 | } |
324 | $args{'edge'} = {} if %$edgeattrs && !$args{'edge'}; |
325 | while (my ($key,$val) = each %$edgeattrs) { |
326 | $args{'edge'}->{$key} = $val; |
327 | } |
328 | $args{'graph'} = {} if %$edgeattrs && !$args{'graph'}; |
329 | while (my ($key,$val) = each %$graphattrs) { |
330 | $args{'graph'}->{$key} = $val; |
331 | } |
e36752ea |
332 | |
d8324f08 |
333 | # |
334 | # Create a blank GraphViz object and see if we can produce the output type. |
335 | # |
336 | my $gv = GraphViz->new( %args ) or die "Can't create GraphViz object\n"; |
337 | my $output_method = "as_$output_type"; |
338 | |
339 | # the generators are AUTOLOADed so can't use ->can ($output_method) |
340 | eval { $gv->$output_method }; |
341 | die "Invalid output type: '$output_type'" if $@; |
342 | |
14d7eb56 |
343 | |
344 | my %nj_registry; # for locations of fields for natural joins |
345 | my @fk_registry; # for locations of fields for foreign keys |
346 | |
997f14b2 |
347 | for my $table ( $schema->get_tables ) { |
997f14b2 |
348 | my @fields = $table->get_fields; |
349 | if ( $show_fk_only ) { |
350 | @fields = grep { $_->is_foreign_key } @fields; |
14d7eb56 |
351 | } |
14d7eb56 |
352 | |
6264cdc8 |
353 | my $field_str = ''; |
b7478526 |
354 | if ($show_fields) { |
6264cdc8 |
355 | |
356 | my @fmt_fields; |
b7478526 |
357 | foreach my $field (@fields) { |
6264cdc8 |
358 | |
359 | my $field_type; |
b7478526 |
360 | if ($show_datatypes) { |
6264cdc8 |
361 | |
362 | $field_type = $field->data_type; |
b7478526 |
363 | |
364 | # For the integer type, transform into different types based on |
365 | # requested size, if a size is given. |
6264cdc8 |
366 | if ($field->size and $friendly_ints and (lc $field_type) eq 'integer') { |
b7478526 |
367 | # Automatically translate to int2, int4, int8 |
d44b5f54 |
368 | # Type (Bits) Max. Signed/Unsigned Length |
369 | # tinyint* (8) 128 3 |
370 | # 255 3 |
371 | # smallint (16) 32767 5 |
372 | # 65535 5 |
373 | # mediumint* (24) 8388607 7 |
374 | # 16777215 8 |
375 | # int (32) 2147483647 10 |
d8324f08 |
376 | # 4294967295 11 |
d44b5f54 |
377 | # bigint (64) 9223372036854775807 19 |
378 | # 18446744073709551615 20 |
379 | # |
380 | # * tinyint and mediumint are nonstandard extensions which are |
381 | # only available under MySQL (to my knowledge) |
382 | my $size = $field->size; |
6264cdc8 |
383 | if ($size <= 3 and $friendly_ints_ex) { |
384 | $field_type = 'tinyint', |
b7478526 |
385 | } |
6264cdc8 |
386 | elsif ($size <= 5) { |
387 | $field_type = 'smallint'; |
388 | } |
389 | elsif ($size <= 8 and $friendly_ints_ex) { |
390 | $field_type = 'mediumint'; |
391 | } |
392 | elsif ($size <= 11) { |
393 | $field_type = 'integer'; |
b7478526 |
394 | } |
d44b5f54 |
395 | else { |
6264cdc8 |
396 | $field_type = 'bigint'; |
b7478526 |
397 | } |
398 | } |
399 | |
6264cdc8 |
400 | if ( |
401 | $show_sizes |
402 | and |
403 | $field->size |
404 | and |
405 | ($field_type =~ /^(var)?char2?$/ or $field_type eq 'numeric' or $field_type eq 'decimal') |
406 | ) { |
407 | $field_type .= '(' . $field->size . ')'; |
b7478526 |
408 | } |
409 | } |
410 | |
6264cdc8 |
411 | my $constraints; |
b7478526 |
412 | if ($show_constraints) { |
413 | my @constraints; |
414 | push(@constraints, 'PK') if $field->is_primary_key; |
415 | push(@constraints, 'FK') if $field->is_foreign_key; |
416 | push(@constraints, 'U') if $field->is_unique; |
6264cdc8 |
417 | |
418 | $constraints = join (',', @constraints); |
b7478526 |
419 | } |
6264cdc8 |
420 | |
421 | # construct the field line from all info gathered so far |
422 | push @fmt_fields, join (' ', |
423 | '-', |
424 | $field->name, |
425 | $field_type || (), |
426 | $constraints ? "[$constraints]" : (), |
427 | ); |
428 | |
b7478526 |
429 | } |
6264cdc8 |
430 | |
431 | # join field lines with graphviz formatting |
432 | $field_str = join ('\l', @fmt_fields) . '\l'; |
b7478526 |
433 | } |
434 | |
6264cdc8 |
435 | my $index_str = ''; |
b7478526 |
436 | if ($show_indexes) { |
6264cdc8 |
437 | |
438 | my @fmt_indexes; |
b7478526 |
439 | foreach my $index ($table->get_indices) { |
440 | next unless $index->is_valid; |
441 | |
6264cdc8 |
442 | push @fmt_indexes, join (' ', |
443 | '*', |
4d5d28cb |
444 | $show_index_names ? $index->name . ':' : (), |
6264cdc8 |
445 | join (', ', $index->fields), |
446 | ($index->type eq 'UNIQUE') ? '[U]' : (), |
447 | ); |
d6d6b205 |
448 | } |
6264cdc8 |
449 | |
450 | # join index lines with graphviz formatting (if any indexes at all) |
451 | $index_str = join ('\l', @fmt_indexes) . '\l' if @fmt_indexes; |
452 | } |
453 | |
454 | my $table_name = $table->name; |
455 | my $name_str = $table_name . '\n'; |
456 | |
457 | # escape spaces |
458 | for ($name_str, $field_str, $index_str) { |
459 | $_ =~ s/ /\\ /g; |
b7478526 |
460 | } |
6264cdc8 |
461 | |
462 | |
463 | # only the 'record' type supports nice formatting |
464 | if ($node_shape eq 'record') { |
465 | |
466 | # the necessity to supply shape => 'record' is a graphviz bug |
467 | $gv->add_node( $table_name, |
468 | shape => 'record', |
469 | label => sprintf ('{%s}', |
470 | join ('|', |
471 | $name_str, |
472 | $field_str || (), |
473 | $index_str || (), |
474 | ), |
475 | ), |
476 | ); |
477 | } |
478 | else { |
479 | my $sep = sprintf ('%s\n', |
480 | '-' x ( (length $table_name) + 2) |
481 | ); |
482 | |
483 | $gv->add_node( $table_name, |
484 | label => join ($sep, |
485 | $name_str, |
486 | $field_str || (), |
487 | $index_str || (), |
488 | ), |
489 | ); |
490 | } |
491 | |
492 | |
e36752ea |
493 | debug("Processing table '$table_name'"); |
494 | |
997f14b2 |
495 | debug("Fields = ", join(', ', map { $_->name } @fields)); |
14d7eb56 |
496 | |
497 | for my $f ( @fields ) { |
997f14b2 |
498 | my $name = $f->name or next; |
499 | my $is_pk = $f->is_primary_key; |
500 | my $is_unique = $f->is_unique; |
14d7eb56 |
501 | |
502 | # |
503 | # Decide if we should skip this field. |
504 | # |
505 | if ( $natural_join ) { |
997f14b2 |
506 | next unless $is_pk || $f->is_foreign_key; |
14d7eb56 |
507 | } |
508 | |
509 | my $constraints = $f->{'constraints'}; |
510 | |
511 | if ( $natural_join && !$skip{ $name } ) { |
512 | push @{ $nj_registry{ $name } }, $table_name; |
513 | } |
997f14b2 |
514 | } |
515 | |
516 | unless ( $natural_join ) { |
517 | for my $c ( $table->get_constraints ) { |
518 | next unless $c->type eq FOREIGN_KEY; |
519 | my $fk_table = $c->reference_table or next; |
520 | |
521 | for my $field_name ( $c->fields ) { |
522 | for my $fk_field ( $c->reference_fields ) { |
523 | next unless defined $schema->get_table( $fk_table ); |
14d7eb56 |
524 | push @fk_registry, [ $table_name, $fk_table ]; |
525 | } |
526 | } |
527 | } |
528 | } |
529 | } |
530 | |
531 | # |
532 | # Make the connections. |
533 | # |
534 | my @table_bunches; |
535 | if ( $natural_join ) { |
536 | for my $field_name ( keys %nj_registry ) { |
537 | my @table_names = @{ $nj_registry{ $field_name } || [] } or next; |
538 | next if scalar @table_names == 1; |
539 | push @table_bunches, [ @table_names ]; |
540 | } |
541 | } |
542 | else { |
543 | @table_bunches = @fk_registry; |
544 | } |
545 | |
546 | my %done; |
547 | for my $bunch ( @table_bunches ) { |
548 | my @tables = @$bunch; |
549 | |
550 | for my $i ( 0 .. $#tables ) { |
551 | my $table1 = $tables[ $i ]; |
552 | for my $j ( 0 .. $#tables ) { |
d51a158e |
553 | next if $i == $j; |
14d7eb56 |
554 | my $table2 = $tables[ $j ]; |
14d7eb56 |
555 | next if $done{ $table1 }{ $table2 }; |
13811af0 |
556 | $gv->add_edge( $table2, $table1 ); |
14d7eb56 |
557 | $done{ $table1 }{ $table2 } = 1; |
558 | $done{ $table2 }{ $table1 } = 1; |
559 | } |
560 | } |
561 | } |
562 | |
563 | # |
564 | # Print the image. |
565 | # |
14d7eb56 |
566 | if ( $out_file ) { |
d8324f08 |
567 | if (openhandle ($out_file)) { |
568 | print $out_file $gv->$output_method; |
569 | } |
570 | else { |
14d7eb56 |
571 | open my $fh, ">$out_file" or die "Can't write '$out_file': $!\n"; |
28c31cbf |
572 | binmode $fh; |
14d7eb56 |
573 | print $fh $gv->$output_method; |
574 | close $fh; |
d8324f08 |
575 | } |
14d7eb56 |
576 | } |
577 | else { |
d8324f08 |
578 | return $gv->$output_method; |
14d7eb56 |
579 | } |
580 | } |
581 | |
582 | 1; |
583 | |
977651a5 |
584 | # ------------------------------------------------------------------- |
585 | |
14d7eb56 |
586 | =pod |
587 | |
14d7eb56 |
588 | =head1 AUTHOR |
589 | |
590 | Ken Y. Clark E<lt>kclark@cpan.orgE<gt> |
591 | |
d44b5f54 |
592 | =head2 CONTRIBUTORS |
593 | |
594 | Jonathan Yu E<lt>frequency@cpan.orgE<gt> |
595 | |
d491c962 |
596 | =head1 SEE ALSO |
597 | |
598 | SQL::Translator, GraphViz |
599 | |
14d7eb56 |
600 | =cut |