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1 | package SQL::Translator::Producer::GraphViz; |
2 | |
3 | # ------------------------------------------------------------------- |
782b5a43 |
4 | # $Id$ |
14d7eb56 |
5 | # ------------------------------------------------------------------- |
6264cdc8 |
6 | # Copyright (C) 2002-2009 SQLFairy Authors |
14d7eb56 |
7 | # |
8 | # This program is free software; you can redistribute it and/or |
9 | # modify it under the terms of the GNU General Public License as |
10 | # published by the Free Software Foundation; version 2. |
11 | # |
12 | # This program is distributed in the hope that it will be useful, but |
13 | # WITHOUT ANY WARRANTY; without even the implied warranty of |
14 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
15 | # General Public License for more details. |
16 | # |
17 | # You should have received a copy of the GNU General Public License |
18 | # along with this program; if not, write to the Free Software |
19 | # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
20 | # 02111-1307 USA |
21 | # ------------------------------------------------------------------- |
22 | |
d491c962 |
23 | =pod |
24 | |
25 | =head1 NAME |
26 | |
27 | SQL::Translator::Producer::GraphViz - GraphViz producer for SQL::Translator |
28 | |
29 | =head1 SYNOPSIS |
30 | |
31 | use SQL::Translator; |
32 | |
33 | my $trans = new SQL::Translator( |
34 | from => 'MySQL', # or your db of choice |
35 | to => 'GraphViz', |
36 | producer_args => { |
37 | out_file => 'schema.png', |
38 | add_color => 1, |
39 | show_constraints => 1, |
40 | show_datatypes => 1, |
9d93edab |
41 | show_sizes => 1 |
d491c962 |
42 | } |
43 | ) or die SQL::Translator->error; |
44 | |
45 | $trans->translate or die $trans->error; |
46 | |
47 | =head1 DESCRIPTION |
48 | |
49 | Creates a graph of a schema using the amazing graphviz |
50 | (see http://www.graphviz.org/) application (via |
51 | the GraphViz module). It's nifty--you should try it! |
52 | |
53 | =head1 PRODUCER ARGS |
54 | |
55 | =over 4 |
56 | |
57 | =item * out_file |
58 | |
d8324f08 |
59 | The name of the file where the resulting GraphViz output will be |
60 | written. Alternatively an open filehandle can be supplied. If |
61 | undefined (the default) - the result is returned as a string. |
d491c962 |
62 | |
63 | =item * layout (DEFAULT: 'dot') |
64 | |
65 | determines which layout algorithm GraphViz will use; possible |
66 | values are 'dot' (the default GraphViz layout for directed graph |
67 | layouts), 'neato' (for undirected graph layouts - spring model) |
68 | or 'twopi' (for undirected graph layouts - circular) |
69 | |
70 | =item * node_shape (DEFAULT: 'record') |
71 | |
72 | sets the node shape of each table in the graph; this can be |
73 | one of 'record', 'plaintext', 'ellipse', 'circle', 'egg', |
74 | 'triangle', 'box', 'diamond', 'trapezium', 'parallelogram', |
75 | 'house', 'hexagon', or 'octagon' |
76 | |
77 | =item * output_type (DEFAULT: 'png') |
78 | |
79 | sets the file type of the output graphic; possible values are |
80 | 'ps', 'hpgl', 'pcl', 'mif', 'pic', 'gd', 'gd2', 'gif', 'jpeg', |
81 | 'png', 'wbmp', 'cmap', 'ismap', 'imap', 'vrml', 'vtx', 'mp', |
82 | 'fig', 'svg', 'canon', 'plain' or 'text' (see GraphViz for |
83 | details on each of these) |
84 | |
85 | =item * width (DEFAULT: 8.5) |
86 | |
87 | width (in inches) of the output graphic |
88 | |
89 | =item * height (DEFAULT: 11) |
90 | |
91 | height (in inches) of the output grahic |
92 | |
027cebc7 |
93 | =item * fontsize |
94 | |
95 | custom font size for node and edge labels (note that arbitrarily large |
96 | sizes may be ignored due to page size or graph size constraints) |
97 | |
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98 | =item * fontname |
027cebc7 |
99 | |
100 | custom font name (or full path to font file) for node, edge, and graph |
101 | labels |
102 | |
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103 | =item * nodeattrs |
027cebc7 |
104 | |
105 | reference to a hash of node attribute names and their values; these |
106 | may override general fontname or fontsize parameter |
107 | |
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108 | =item * edgeattrs |
027cebc7 |
109 | |
110 | reference to a hash of edge attribute names and their values; these |
111 | may override general fontname or fontsize parameter |
112 | |
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113 | =item * graphattrs |
027cebc7 |
114 | |
115 | reference to a hash of graph attribute names and their values; these |
116 | may override the general fontname parameter |
117 | |
d491c962 |
118 | =item * show_fields (DEFAULT: true) |
119 | |
120 | if set to a true value, the names of the colums in a table will |
121 | be displayed in each table's node |
122 | |
123 | =item * show_fk_only |
124 | |
125 | if set to a true value, only columns which are foreign keys |
126 | will be displayed in each table's node |
127 | |
128 | =item * show_datatypes |
129 | |
130 | if set to a true value, the datatype of each column will be |
131 | displayed next to each column's name; this option will have no |
132 | effect if the value of show_fields is set to false |
133 | |
9d93edab |
134 | =item * show_sizes |
d491c962 |
135 | |
136 | if set to a true value, the size (in bytes) of each CHAR and |
137 | VARCHAR column will be displayed in parentheses next to the |
138 | column's name; this option will have no effect if the value of |
139 | show_fields is set to false |
140 | |
141 | =item * show_constraints |
142 | |
143 | if set to a true value, a field's constraints (i.e., its |
144 | primary-key-ness, its foreign-key-ness and/or its uniqueness) |
145 | will appear as a comma-separated list in brackets next to the |
146 | field's name; this option will have no effect if the value of |
147 | show_fields is set to false |
148 | |
149 | =item * add_color |
150 | |
151 | if set to a true value, the graphic will have a background |
152 | color of 'lightgoldenrodyellow'; otherwise the background |
153 | color will be white |
154 | |
155 | =item * natural_join |
156 | |
157 | if set to a true value, the make_natural_join method of |
158 | SQL::Translator::Schema will be called before generating the |
159 | graph; a true value for join_pk_only (see below) implies a |
160 | true value for this option |
161 | |
162 | =item * join_pk_only |
163 | |
164 | the value of this option will be passed as the value of the |
165 | like-named argument in the make_natural_join method (see |
166 | natural_join above) of SQL::Translator::Schema, if either the |
167 | value of this option or the natural_join option is set to true |
168 | |
169 | =item * skip_fields |
170 | |
171 | the value of this option will be passed as the value of the |
172 | like-named argument in the make_natural_join method (see |
173 | natural_join above) of SQL::Translator::Schema, if either |
174 | the natural_join or join_pk_only options has a true value |
175 | |
b7478526 |
176 | =item * show_indexes |
177 | |
178 | if set to a true value, each record will also show the indexes |
179 | set on each table. it describes the index types along with |
180 | which columns are included in the index. this option requires |
181 | that show_fields is a true value as well |
182 | |
4d5d28cb |
183 | =item * show_index_names |
d6d6b205 |
184 | |
185 | if show_indexes is set to a true value, then the value of this |
186 | parameter determines whether or not to print names of indexes. |
d8324f08 |
187 | if show_index_names is false, then a list of indexed columns |
d6d6b205 |
188 | will appear below the field list. otherwise, it will be a list |
189 | prefixed with the name of each index. it defaults to true. |
190 | |
b7478526 |
191 | =item * friendly_ints |
192 | |
193 | if set to a true value, each integer type field will be displayed |
d44b5f54 |
194 | as a smallint, integer or bigint depending on the field's |
b7478526 |
195 | associated size parameter. this only applies for the 'integer' |
196 | type (and not the lowercase 'int' type, which is assumed to be a |
197 | 32-bit integer). |
198 | |
d44b5f54 |
199 | =item * friendly_ints_extended |
200 | |
201 | if set to a true value, the friendly ints displayed will take into |
202 | account the non-standard types, 'tinyint' and 'mediumint' (which, |
203 | as far as I am aware, is only implemented in MySQL) |
204 | |
d491c962 |
205 | =back |
206 | |
207 | =cut |
208 | |
14d7eb56 |
209 | use strict; |
210 | use GraphViz; |
997f14b2 |
211 | use SQL::Translator::Schema::Constants; |
14d7eb56 |
212 | use SQL::Translator::Utils qw(debug); |
d8324f08 |
213 | use Scalar::Util qw/openhandle/; |
14d7eb56 |
214 | |
215 | use vars qw[ $VERSION $DEBUG ]; |
da06ac74 |
216 | $VERSION = '1.99'; |
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217 | $DEBUG = 0 unless defined $DEBUG; |
218 | |
219 | use constant VALID_LAYOUT => { |
220 | dot => 1, |
221 | neato => 1, |
222 | twopi => 1, |
223 | }; |
224 | |
225 | use constant VALID_NODE_SHAPE => { |
226 | record => 1, |
227 | plaintext => 1, |
228 | ellipse => 1, |
229 | circle => 1, |
230 | egg => 1, |
231 | triangle => 1, |
232 | box => 1, |
233 | diamond => 1, |
234 | trapezium => 1, |
235 | parallelogram => 1, |
236 | house => 1, |
237 | hexagon => 1, |
238 | octagon => 1, |
239 | }; |
240 | |
14d7eb56 |
241 | sub produce { |
997f14b2 |
242 | my $t = shift; |
243 | my $schema = $t->schema; |
14d7eb56 |
244 | my $args = $t->producer_args; |
245 | local $DEBUG = $t->debug; |
14d7eb56 |
246 | |
59cbb03f |
247 | my $out_file = $args->{'out_file'} || ''; |
248 | my $layout = $args->{'layout'} || 'dot'; |
249 | my $node_shape = $args->{'node_shape'} || 'record'; |
250 | my $output_type = $args->{'output_type'} || 'png'; |
251 | my $width = defined $args->{'width'} |
252 | ? $args->{'width'} : 8.5; |
253 | my $height = defined $args->{'height'} |
254 | ? $args->{'height'} : 11; |
027cebc7 |
255 | my $fontsize = $args->{'fontsize'}; |
256 | my $fontname = $args->{'fontname'}; |
257 | my $edgeattrs = $args->{'edgeattrs'} || {}; |
258 | my $graphattrs = $args->{'graphattrs'} || {}; |
259 | my $nodeattrs = $args->{'nodeattrs'} || {}; |
59cbb03f |
260 | my $show_fields = defined $args->{'show_fields'} |
261 | ? $args->{'show_fields'} : 1; |
262 | my $add_color = $args->{'add_color'}; |
263 | my $natural_join = $args->{'natural_join'}; |
264 | my $show_fk_only = $args->{'show_fk_only'}; |
265 | my $show_datatypes = $args->{'show_datatypes'}; |
266 | my $show_sizes = $args->{'show_sizes'}; |
b7478526 |
267 | my $show_indexes = $args->{'show_indexes'}; |
4d5d28cb |
268 | my $show_index_names = defined $args->{'show_index_names'} ? $args->{'show_index_names'} : 1; |
b7478526 |
269 | my $friendly_ints = $args->{'friendly_ints'}; |
d44b5f54 |
270 | my $friendly_ints_ex = $args->{'friendly_ints_extended'}; |
37ce746e |
271 | my $show_constraints = $args->{'show_constraints'}; |
59cbb03f |
272 | my $join_pk_only = $args->{'join_pk_only'}; |
9d93edab |
273 | my $skip_fields = $args->{'skip_fields'} || ''; |
274 | my %skip = map { s/^\s+|\s+$//g; length $_ ? ($_, 1) : () } |
59cbb03f |
275 | split ( /,/, $skip_fields ); |
276 | $natural_join ||= $join_pk_only; |
14d7eb56 |
277 | |
997f14b2 |
278 | $schema->make_natural_joins( |
279 | join_pk_only => $join_pk_only, |
280 | skip_fields => $args->{'skip_fields'}, |
281 | ) if $natural_join; |
282 | |
14d7eb56 |
283 | die "Invalid layout '$layout'" unless VALID_LAYOUT->{ $layout }; |
14d7eb56 |
284 | die "Invalid node shape'$node_shape'" |
285 | unless VALID_NODE_SHAPE->{ $node_shape }; |
286 | |
e36752ea |
287 | for ( $height, $width ) { |
288 | $_ = 0 unless $_ =~ /^\d+(.\d)?$/; |
289 | $_ = 0 if $_ < 0; |
290 | } |
291 | |
e36752ea |
292 | my %args = ( |
14d7eb56 |
293 | directed => $natural_join ? 0 : 1, |
294 | layout => $layout, |
295 | no_overlap => 1, |
296 | bgcolor => $add_color ? 'lightgoldenrodyellow' : 'white', |
297 | node => { |
298 | shape => $node_shape, |
299 | style => 'filled', |
027cebc7 |
300 | fillcolor => 'white', |
301 | }, |
e36752ea |
302 | ); |
303 | $args{'width'} = $width if $width; |
304 | $args{'height'} = $height if $height; |
027cebc7 |
305 | # set fontsize for edge and node labels if specified |
306 | if ($fontsize) { |
307 | $args{'node'}->{'fontsize'} = $fontsize; |
308 | $args{'edge'} = {} unless $args{'edge'}; |
309 | $args{'edge'}->{'fontsize'} = $fontsize; |
310 | } |
311 | # set the font name globally for node, edge, and graph labels if |
312 | # specified (use node, edge, or graph attributes for individual |
313 | # font specification) |
314 | if ($fontname) { |
315 | $args{'node'}->{'fontname'} = $fontname; |
316 | $args{'edge'} = {} unless $args{'edge'}; |
317 | $args{'edge'}->{'fontname'} = $fontname; |
318 | $args{'graph'} = {} unless $args{'graph'}; |
319 | $args{'graph'}->{'fontname'} = $fontname; |
320 | } |
321 | # set additional node, edge, and graph attributes; these may |
322 | # possibly override ones set before |
323 | while (my ($key,$val) = each %$nodeattrs) { |
324 | $args{'node'}->{$key} = $val; |
325 | } |
326 | $args{'edge'} = {} if %$edgeattrs && !$args{'edge'}; |
327 | while (my ($key,$val) = each %$edgeattrs) { |
328 | $args{'edge'}->{$key} = $val; |
329 | } |
330 | $args{'graph'} = {} if %$edgeattrs && !$args{'graph'}; |
331 | while (my ($key,$val) = each %$graphattrs) { |
332 | $args{'graph'}->{$key} = $val; |
333 | } |
e36752ea |
334 | |
d8324f08 |
335 | # |
336 | # Create a blank GraphViz object and see if we can produce the output type. |
337 | # |
338 | my $gv = GraphViz->new( %args ) or die "Can't create GraphViz object\n"; |
339 | my $output_method = "as_$output_type"; |
340 | |
341 | # the generators are AUTOLOADed so can't use ->can ($output_method) |
342 | eval { $gv->$output_method }; |
343 | die "Invalid output type: '$output_type'" if $@; |
344 | |
14d7eb56 |
345 | |
346 | my %nj_registry; # for locations of fields for natural joins |
347 | my @fk_registry; # for locations of fields for foreign keys |
348 | |
997f14b2 |
349 | for my $table ( $schema->get_tables ) { |
997f14b2 |
350 | my @fields = $table->get_fields; |
351 | if ( $show_fk_only ) { |
352 | @fields = grep { $_->is_foreign_key } @fields; |
14d7eb56 |
353 | } |
14d7eb56 |
354 | |
6264cdc8 |
355 | my $field_str = ''; |
b7478526 |
356 | if ($show_fields) { |
6264cdc8 |
357 | |
358 | my @fmt_fields; |
b7478526 |
359 | foreach my $field (@fields) { |
6264cdc8 |
360 | |
361 | my $field_type; |
b7478526 |
362 | if ($show_datatypes) { |
6264cdc8 |
363 | |
364 | $field_type = $field->data_type; |
b7478526 |
365 | |
366 | # For the integer type, transform into different types based on |
367 | # requested size, if a size is given. |
6264cdc8 |
368 | if ($field->size and $friendly_ints and (lc $field_type) eq 'integer') { |
b7478526 |
369 | # Automatically translate to int2, int4, int8 |
d44b5f54 |
370 | # Type (Bits) Max. Signed/Unsigned Length |
371 | # tinyint* (8) 128 3 |
372 | # 255 3 |
373 | # smallint (16) 32767 5 |
374 | # 65535 5 |
375 | # mediumint* (24) 8388607 7 |
376 | # 16777215 8 |
377 | # int (32) 2147483647 10 |
d8324f08 |
378 | # 4294967295 11 |
d44b5f54 |
379 | # bigint (64) 9223372036854775807 19 |
380 | # 18446744073709551615 20 |
381 | # |
382 | # * tinyint and mediumint are nonstandard extensions which are |
383 | # only available under MySQL (to my knowledge) |
384 | my $size = $field->size; |
6264cdc8 |
385 | if ($size <= 3 and $friendly_ints_ex) { |
386 | $field_type = 'tinyint', |
b7478526 |
387 | } |
6264cdc8 |
388 | elsif ($size <= 5) { |
389 | $field_type = 'smallint'; |
390 | } |
391 | elsif ($size <= 8 and $friendly_ints_ex) { |
392 | $field_type = 'mediumint'; |
393 | } |
394 | elsif ($size <= 11) { |
395 | $field_type = 'integer'; |
b7478526 |
396 | } |
d44b5f54 |
397 | else { |
6264cdc8 |
398 | $field_type = 'bigint'; |
b7478526 |
399 | } |
400 | } |
401 | |
6264cdc8 |
402 | if ( |
403 | $show_sizes |
404 | and |
405 | $field->size |
406 | and |
407 | ($field_type =~ /^(var)?char2?$/ or $field_type eq 'numeric' or $field_type eq 'decimal') |
408 | ) { |
409 | $field_type .= '(' . $field->size . ')'; |
b7478526 |
410 | } |
411 | } |
412 | |
6264cdc8 |
413 | my $constraints; |
b7478526 |
414 | if ($show_constraints) { |
415 | my @constraints; |
416 | push(@constraints, 'PK') if $field->is_primary_key; |
417 | push(@constraints, 'FK') if $field->is_foreign_key; |
418 | push(@constraints, 'U') if $field->is_unique; |
6264cdc8 |
419 | |
420 | $constraints = join (',', @constraints); |
b7478526 |
421 | } |
6264cdc8 |
422 | |
423 | # construct the field line from all info gathered so far |
424 | push @fmt_fields, join (' ', |
425 | '-', |
426 | $field->name, |
427 | $field_type || (), |
428 | $constraints ? "[$constraints]" : (), |
429 | ); |
430 | |
b7478526 |
431 | } |
6264cdc8 |
432 | |
433 | # join field lines with graphviz formatting |
434 | $field_str = join ('\l', @fmt_fields) . '\l'; |
b7478526 |
435 | } |
436 | |
6264cdc8 |
437 | my $index_str = ''; |
b7478526 |
438 | if ($show_indexes) { |
6264cdc8 |
439 | |
440 | my @fmt_indexes; |
b7478526 |
441 | foreach my $index ($table->get_indices) { |
442 | next unless $index->is_valid; |
443 | |
6264cdc8 |
444 | push @fmt_indexes, join (' ', |
445 | '*', |
4d5d28cb |
446 | $show_index_names ? $index->name . ':' : (), |
6264cdc8 |
447 | join (', ', $index->fields), |
448 | ($index->type eq 'UNIQUE') ? '[U]' : (), |
449 | ); |
d6d6b205 |
450 | } |
6264cdc8 |
451 | |
452 | # join index lines with graphviz formatting (if any indexes at all) |
453 | $index_str = join ('\l', @fmt_indexes) . '\l' if @fmt_indexes; |
454 | } |
455 | |
456 | my $table_name = $table->name; |
457 | my $name_str = $table_name . '\n'; |
458 | |
459 | # escape spaces |
460 | for ($name_str, $field_str, $index_str) { |
461 | $_ =~ s/ /\\ /g; |
b7478526 |
462 | } |
6264cdc8 |
463 | |
464 | |
465 | # only the 'record' type supports nice formatting |
466 | if ($node_shape eq 'record') { |
467 | |
468 | # the necessity to supply shape => 'record' is a graphviz bug |
469 | $gv->add_node( $table_name, |
470 | shape => 'record', |
471 | label => sprintf ('{%s}', |
472 | join ('|', |
473 | $name_str, |
474 | $field_str || (), |
475 | $index_str || (), |
476 | ), |
477 | ), |
478 | ); |
479 | } |
480 | else { |
481 | my $sep = sprintf ('%s\n', |
482 | '-' x ( (length $table_name) + 2) |
483 | ); |
484 | |
485 | $gv->add_node( $table_name, |
486 | label => join ($sep, |
487 | $name_str, |
488 | $field_str || (), |
489 | $index_str || (), |
490 | ), |
491 | ); |
492 | } |
493 | |
494 | |
e36752ea |
495 | debug("Processing table '$table_name'"); |
496 | |
997f14b2 |
497 | debug("Fields = ", join(', ', map { $_->name } @fields)); |
14d7eb56 |
498 | |
499 | for my $f ( @fields ) { |
997f14b2 |
500 | my $name = $f->name or next; |
501 | my $is_pk = $f->is_primary_key; |
502 | my $is_unique = $f->is_unique; |
14d7eb56 |
503 | |
504 | # |
505 | # Decide if we should skip this field. |
506 | # |
507 | if ( $natural_join ) { |
997f14b2 |
508 | next unless $is_pk || $f->is_foreign_key; |
14d7eb56 |
509 | } |
510 | |
511 | my $constraints = $f->{'constraints'}; |
512 | |
513 | if ( $natural_join && !$skip{ $name } ) { |
514 | push @{ $nj_registry{ $name } }, $table_name; |
515 | } |
997f14b2 |
516 | } |
517 | |
518 | unless ( $natural_join ) { |
519 | for my $c ( $table->get_constraints ) { |
520 | next unless $c->type eq FOREIGN_KEY; |
521 | my $fk_table = $c->reference_table or next; |
522 | |
523 | for my $field_name ( $c->fields ) { |
524 | for my $fk_field ( $c->reference_fields ) { |
525 | next unless defined $schema->get_table( $fk_table ); |
14d7eb56 |
526 | push @fk_registry, [ $table_name, $fk_table ]; |
527 | } |
528 | } |
529 | } |
530 | } |
531 | } |
532 | |
533 | # |
534 | # Make the connections. |
535 | # |
536 | my @table_bunches; |
537 | if ( $natural_join ) { |
538 | for my $field_name ( keys %nj_registry ) { |
539 | my @table_names = @{ $nj_registry{ $field_name } || [] } or next; |
540 | next if scalar @table_names == 1; |
541 | push @table_bunches, [ @table_names ]; |
542 | } |
543 | } |
544 | else { |
545 | @table_bunches = @fk_registry; |
546 | } |
547 | |
548 | my %done; |
549 | for my $bunch ( @table_bunches ) { |
550 | my @tables = @$bunch; |
551 | |
552 | for my $i ( 0 .. $#tables ) { |
553 | my $table1 = $tables[ $i ]; |
554 | for my $j ( 0 .. $#tables ) { |
d51a158e |
555 | next if $i == $j; |
14d7eb56 |
556 | my $table2 = $tables[ $j ]; |
14d7eb56 |
557 | next if $done{ $table1 }{ $table2 }; |
13811af0 |
558 | $gv->add_edge( $table2, $table1 ); |
14d7eb56 |
559 | $done{ $table1 }{ $table2 } = 1; |
560 | $done{ $table2 }{ $table1 } = 1; |
561 | } |
562 | } |
563 | } |
564 | |
565 | # |
566 | # Print the image. |
567 | # |
14d7eb56 |
568 | if ( $out_file ) { |
d8324f08 |
569 | if (openhandle ($out_file)) { |
570 | print $out_file $gv->$output_method; |
571 | } |
572 | else { |
14d7eb56 |
573 | open my $fh, ">$out_file" or die "Can't write '$out_file': $!\n"; |
28c31cbf |
574 | binmode $fh; |
14d7eb56 |
575 | print $fh $gv->$output_method; |
576 | close $fh; |
d8324f08 |
577 | } |
14d7eb56 |
578 | } |
579 | else { |
d8324f08 |
580 | return $gv->$output_method; |
14d7eb56 |
581 | } |
582 | } |
583 | |
584 | 1; |
585 | |
977651a5 |
586 | # ------------------------------------------------------------------- |
587 | |
14d7eb56 |
588 | =pod |
589 | |
14d7eb56 |
590 | =head1 AUTHOR |
591 | |
592 | Ken Y. Clark E<lt>kclark@cpan.orgE<gt> |
593 | |
d44b5f54 |
594 | =head2 CONTRIBUTORS |
595 | |
596 | Jonathan Yu E<lt>frequency@cpan.orgE<gt> |
597 | |
d491c962 |
598 | =head1 SEE ALSO |
599 | |
600 | SQL::Translator, GraphViz |
601 | |
14d7eb56 |
602 | =cut |