Commit | Line | Data |
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1 | =head1 NAME |
2 | |
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3 | |
4 | |
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5 | Catalyst::Manual::Tutorial::AdvancedCRUD::FormFu - Catalyst Tutorial - Part 9: Advanced CRUD - FormFu |
6 | |
7 | |
8 | =head1 OVERVIEW |
9 | |
10 | This is B<Part 9 of 10> for the Catalyst tutorial. |
11 | |
12 | L<Tutorial Overview|Catalyst::Manual::Tutorial> |
13 | |
14 | =over 4 |
15 | |
16 | =item 1 |
17 | |
18 | L<Introduction|Catalyst::Manual::Tutorial::Intro> |
19 | |
20 | =item 2 |
21 | |
22 | L<Catalyst Basics|Catalyst::Manual::Tutorial::CatalystBasics> |
23 | |
24 | =item 3 |
25 | |
26 | L<More Catalyst Basics|Catalyst::Manual::Tutorial::MoreCatalystBasics> |
27 | |
28 | =item 4 |
29 | |
30 | L<Basic CRUD|Catalyst::Manual::Tutorial::BasicCRUD> |
31 | |
32 | =item 5 |
33 | |
34 | L<Authentication|Catalyst::Manual::Tutorial::Authentication> |
35 | |
36 | =item 6 |
37 | |
38 | L<Authorization|Catalyst::Manual::Tutorial::Authorization> |
39 | |
40 | =item 7 |
41 | |
42 | L<Debugging|Catalyst::Manual::Tutorial::Debugging> |
43 | |
44 | =item 8 |
45 | |
46 | L<Testing|Catalyst::Manual::Tutorial::Testing> |
47 | |
48 | =item 9 |
49 | |
d682d02d |
50 | B<Advanced CRUD::FormFu> |
b80f58e5 |
51 | |
52 | =item 10 |
53 | |
54 | L<Appendices|Catalyst::Manual::Tutorial::Appendices> |
55 | |
56 | =back |
57 | |
58 | |
59 | =head1 DESCRIPTION |
60 | |
cca5cd98 |
61 | This portion of the tutorial explores L<HTML::FormFu|HTML::FormFu> and |
62 | how it can be used to manage forms, perform validation of form input, |
ab0db558 |
63 | as well as save and restore data to/from the database. This was written |
cf582e91 |
64 | using HTML::FormFu version 0.03007. |
cca5cd98 |
65 | |
66 | See |
67 | L<Catalyst::Manual::Tutorial::AdvancedCRUD|Catalyst::Manual::Tutorial::AdvancedCRUD> |
68 | for additional form management options other than |
69 | L<HTML::FormFu|HTML::FormFu>. |
70 | |
71 | |
72 | =head1 Install C<HTML::FormFu> |
73 | |
74 | If you are following along in Ubuntu, it turns out that C<HTML::FormFu> |
75 | is not yet available as a package at the time this was written. To |
76 | install it with a combination of C<apt-get> packages and traditional |
77 | CPAN modules, first use C<apt-get> to install most of the modules |
78 | required by C<HTML::FormFu>: |
79 | |
80 | sudo apt-get install libtest-nowarnings-perl libdatetime-format-builder-perl \ |
81 | libdatetime-format-strptime-perl libdatetime-locale-perl \ |
82 | libhtml-tokeparser-simple-perl liblist-moreutils-perl \ |
ab0db558 |
83 | libregexp-copy-perl libregexp-common-perl libyaml-syck-perl libparams-util-perl \ |
84 | libcrypt-des-perl libcaptcha-recaptcha-perl libcrypt-cbc-perl \ |
85 | libreadonly-xs-perl libmoose-perl libregexp-assemble-perl |
028b4e1a |
86 | |
87 | ... |
88 | |
89 | sudo apt-get clean |
cca5cd98 |
90 | |
91 | Then use the following command to install directly from CPAN the modules |
92 | that aren't available as Ubuntu/Debian packages via C<apt-get>: |
93 | |
ab0db558 |
94 | sudo cpan File::ShareDir Task::Weaken Config::Any Test::Harness Test::Aggregate \ |
95 | boolean Test::MockTime DateTime::Format::Natural HTML::FormFu \ |
96 | Catalyst::Component::InstancePerContext Catalyst::Controller::HTML::FormFu \ |
97 | HTML::FormFu::Model::DBIC |
028b4e1a |
98 | |
99 | ... |
100 | |
101 | Is it OK to try to connect to the Internet? [yes] yes |
102 | |
103 | ... |
104 | |
ab0db558 |
105 | |
106 | B<Note:> If you are following along with the Ubuntu LiveCD, you might |
107 | want to make sure you still have adequate free disk space in the root |
108 | partition with the C<df> command. You can free up some space with |
109 | C<rm -rf /root/.cpan/*>. |
cca5cd98 |
110 | |
111 | |
112 | =head1 C<HTML::FormFu> FORM CREATION |
113 | |
114 | This section looks at how L<HTML::FormFu|HTML::FormFu> can be used to |
115 | add additional functionality to the manually created form from Part 4. |
116 | |
117 | |
118 | =head2 Inherit From C<Catalyst::Controller::HTML::FormFu> |
119 | |
120 | First, change your C<lib/MyApp/Controller/Books.pm> to inherit from |
121 | L<Catalyst::Controller::HTML::FormFu|Catalyst::Controller::HTML::FormFu> |
122 | by changing the C<use base> line from the default of: |
123 | |
ab0db558 |
124 | use parent 'Catalyst::Controller'; |
cca5cd98 |
125 | |
126 | to use the FormFu base controller class: |
127 | |
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128 | use parent 'Catalyst::Controller::HTML::FormFu'; |
cca5cd98 |
129 | |
130 | |
131 | =head2 Add Action to Display and Save the Form |
132 | |
133 | Open C<lib/MyApp/Controller/Books.pm> in your editor and add the |
134 | following method: |
135 | |
d682d02d |
136 | =head2 formfu_create |
cca5cd98 |
137 | |
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138 | Use HTML::FormFu to create a new book |
cca5cd98 |
139 | |
140 | =cut |
141 | |
d682d02d |
142 | sub formfu_create :Local :FormConfig { |
cca5cd98 |
143 | my ($self, $c) = @_; |
144 | |
145 | # Get the form that the :FormConfig attribute saved in the stash |
146 | my $form = $c->stash->{form}; |
147 | |
166c90a0 |
148 | # Check if the form has been submitted (vs. displaying the initial |
149 | # form) and if the data passed validation. "submitted_and_valid" |
cca5cd98 |
150 | # is shorthand for "$form->submitted && !$form->has_errors" |
151 | if ($form->submitted_and_valid) { |
152 | # Create a new book |
153 | my $book = $c->model('DB::Books')->new_result({}); |
154 | # Save the form data for the book |
155 | $form->save_to_model($book); |
156 | # Set a status message for the user |
157 | $c->flash->{status_msg} = 'Book created'; |
158 | # Return to the books list |
159 | $c->response->redirect($c->uri_for('list')); |
160 | $c->detach; |
9cb64a37 |
161 | } else { |
162 | # Get the authors from the DB |
163 | my @authorObjs = $c->model("DB::Authors")->all(); |
164 | # Create an array of arrayrefs where each arrayref is an author |
165 | my @authors; |
166 | foreach (sort {$a->last_name cmp $b->last_name} @authorObjs) { |
167 | push(@authors, [$_->id, $_->last_name]); |
168 | } |
169 | # Get the select added by the config file |
170 | my $select = $form->get_element({type => 'Select'}); |
171 | # Add the authors to it |
172 | $select->options(\@authors); |
173 | } |
174 | |
cca5cd98 |
175 | # Set the template |
d682d02d |
176 | $c->stash->{template} = 'books/formfu_create.tt2'; |
cca5cd98 |
177 | } |
178 | |
179 | |
180 | =head2 Create a Form Config File |
181 | |
182 | Although C<HTML::FormFu> supports any configuration file handled by |
183 | L<Config::Any|Config::Any>, most people tend to use YAML. First |
184 | create a directory to hold your form configuration files: |
185 | |
186 | mkdir -p root/forms/books |
187 | |
d682d02d |
188 | Then create the file C<root/forms/books/formfu_create.yml> and enter the |
cca5cd98 |
189 | following text: |
190 | |
191 | --- |
9cb64a37 |
192 | # indicator is the field that is used to test for form submission |
cca5cd98 |
193 | indicator: submit |
9cb64a37 |
194 | # Start listing the form elements |
cca5cd98 |
195 | elements: |
9cb64a37 |
196 | # The first element will be a text field for the title |
cca5cd98 |
197 | - type: Text |
198 | name: title |
199 | label: Title |
9cb64a37 |
200 | # This is an optional 'mouse over' title pop-up |
cca5cd98 |
201 | attributes: |
202 | title: Enter a book title here |
d682d02d |
203 | |
204 | # Another text field for the numeric rating |
cca5cd98 |
205 | - type: Text |
206 | name: rating |
207 | label: Rating |
208 | attributes: |
209 | title: Enter a rating between 1 and 5 here |
d682d02d |
210 | |
211 | # Add a drop-down list for the author selection. Note that we will |
212 | # dynamically fill in all the authors from the controller but we |
213 | # could manually set items in the drop-list by adding this YAML code: |
214 | # options: |
215 | # - [ '1', 'Bastien' ] |
216 | # - [ '2', 'Nasseh' ] |
217 | - type: Select |
218 | name: authors |
219 | label: Author |
220 | |
9cb64a37 |
221 | # The submit button |
cca5cd98 |
222 | - type: Submit |
223 | name: submit |
224 | value: Submit |
225 | |
0171092f |
226 | B<NOTE:> Copying and pasting YAML from perl documentation is sometimes |
1fba2369 |
227 | tricky. See the L<Config::General Config for this tutorial> section of |
228 | this document for a more foolproof config format. |
0171092f |
229 | |
cca5cd98 |
230 | |
231 | =head2 Update the CSS |
232 | |
ab0db558 |
233 | Edit C<root/static/css/main.css> and add the following lines to the bottom of |
cca5cd98 |
234 | the file: |
235 | |
d682d02d |
236 | input { |
cca5cd98 |
237 | display: block; |
238 | } |
d682d02d |
239 | select { |
cca5cd98 |
240 | display: block; |
241 | } |
d682d02d |
242 | .submit { |
243 | padding-top: .5em; |
244 | display: block; |
cca5cd98 |
245 | } |
246 | |
d682d02d |
247 | These changes will display form elements vertically. Note that the |
248 | existing definition of the C<.error> class is pulling the color scheme |
249 | settings from the C<root/lib/config/col> file that was created by the |
250 | TTSite helper. This allows control over the CSS color settings from a |
251 | single location. |
cca5cd98 |
252 | |
253 | |
254 | =head2 Create a Template Page To Display The Form |
255 | |
d682d02d |
256 | Open C<root/src/books/formfu_create.tt2> in your editor and enter the following: |
cca5cd98 |
257 | |
258 | [% META title = 'Create/Update Book' %] |
259 | |
260 | [%# Render the HTML::FormFu Form %] |
261 | [% form %] |
262 | |
8a7c5151 |
263 | <p><a href="[% c.uri_for('list') %]">Return to book list</a></p> |
cca5cd98 |
264 | |
265 | |
266 | =head2 Add Links for Create and Update via C<HTML::FormFu> |
267 | |
268 | Open C<root/src/books/list.tt2> in your editor and add the following to |
269 | the bottom of the existing file: |
270 | |
271 | <p> |
272 | HTML::FormFu: |
8a7c5151 |
273 | <a href="[% c.uri_for('formfu_create') %]">Create</a> |
cca5cd98 |
274 | </p> |
275 | |
d682d02d |
276 | This adds a new link to the bottom of the book list page that we can |
277 | use to easily launch our HTML::FormFu-based form. |
278 | |
cca5cd98 |
279 | |
d682d02d |
280 | =head2 Test The <HTML::FormFu> Create Form |
cca5cd98 |
281 | |
282 | Press C<Ctrl-C> to kill the previous server instance (if it's still |
283 | running) and restart it: |
284 | |
285 | $ script/myapp_server.pl |
286 | |
0909d46f |
287 | Login as C<test01> (password: mypass). Once at the Book List page, |
288 | click the new HTML::FormFu "Create" link at the bottom to display the |
289 | form. Fill in the following values: Title = "Internetworking with |
290 | TCP/IP Vol. II", Rating = "4", and Author = "Comer". Click Submit, |
291 | and you will be returned to the Book List page with a "Book created" |
292 | status message displayed. |
d682d02d |
293 | |
294 | Also note that this implementation allows you to can create books with |
295 | bogus information. Although we have constrained the authors with the |
59d6a035 |
296 | drop-down list (note that this isn't bulletproof because we still have |
297 | not prevented a user from "hacking" the form to specify other values), |
298 | there are no restrictions on items such as the length of the title (for |
299 | example, you can create a one-letter title) and value for the rating |
300 | (you can use any number you want, and even non-numeric values with |
301 | SQLite). The next section will address this concern. |
cca5cd98 |
302 | |
303 | B<Note:> Depending on the database you are using and how you established |
304 | the columns in your tables, the database could obviously provide various |
305 | levels of "type enforcement" on your data. The key point being made in |
306 | the previous paragraph is that the I<web application> itself is not |
307 | performing any validation. |
308 | |
309 | |
310 | =head1 C<HTML::FormFu> VALIDATION AND FILTERING |
311 | |
d682d02d |
312 | Although the use of L<HTML::FormFu|HTML::FormFu> in the previous section |
313 | did provide an automated mechanism to build the form, the real power of |
314 | this module stems from functionality that can automatically validate and |
315 | filter the user input. Validation uses constraints to be sure that |
316 | users input appropriate data (for example, that the email field of a |
317 | form contains a valid email address). Filtering can also be used to |
318 | remove extraneous whitespace from fields or to escape meta-characters in |
319 | user input. |
cca5cd98 |
320 | |
cca5cd98 |
321 | |
d682d02d |
322 | =head2 Add Constraints |
cca5cd98 |
323 | |
d682d02d |
324 | Open C<root/forms/books/formfu_create.yml> in your editor and update it |
cca5cd98 |
325 | to match: |
326 | |
327 | --- |
9cb64a37 |
328 | # indicator is the field that is used to test for form submission |
cca5cd98 |
329 | indicator: submit |
9cb64a37 |
330 | # Start listing the form elements |
cca5cd98 |
331 | elements: |
9cb64a37 |
332 | # The first element will be a text field for the title |
cca5cd98 |
333 | - type: Text |
334 | name: title |
335 | label: Title |
9cb64a37 |
336 | # This is an optional 'mouse over' title pop-up |
cca5cd98 |
337 | attributes: |
338 | title: Enter a book title here |
9cb64a37 |
339 | # Add constraints for the field |
cca5cd98 |
340 | constraints: |
59d6a035 |
341 | # Force the length to be between 5 and 40 chars |
cca5cd98 |
342 | - type: Length |
d682d02d |
343 | min: 5 |
59d6a035 |
344 | max: 40 |
9cb64a37 |
345 | # Override the default of 'Invalid input' |
59d6a035 |
346 | message: Length must be between 5 and 40 characters |
ab0db558 |
347 | |
d682d02d |
348 | # Another text field for the numeric rating |
cca5cd98 |
349 | - type: Text |
350 | name: rating |
351 | label: Rating |
352 | attributes: |
353 | title: Enter a rating between 1 and 5 here |
d682d02d |
354 | # Use Filter to clean up the input data |
ab0db558 |
355 | # Could use 'NonNumeric' below, but since Filters apply *before* |
356 | # constraints, it would conflict with the 'Integer' constraint below. |
357 | # So let's skip this and just use the constraint. |
358 | #filter: |
d682d02d |
359 | # Remove everything except digits |
ab0db558 |
360 | #- NonNumeric |
d682d02d |
361 | # Add constraints to the field |
cca5cd98 |
362 | constraints: |
9cb64a37 |
363 | # Make sure it's a number |
ab0db558 |
364 | - type: Integer |
365 | message: "Required. Digits only, please." |
366 | # Check the min & max values |
367 | - type: Range |
368 | min: 1 |
369 | max: 5 |
370 | message: "Must be between 1 and 5." |
d682d02d |
371 | |
372 | # Add a select list for the author selection. Note that we will |
373 | # dynamically fill in all the authors from the controller but we |
374 | # could manually set items in the select by adding this YAML code: |
375 | # options: |
376 | # - [ '1', 'Bastien' ] |
377 | # - [ '2', 'Nasseh' ] |
378 | - type: Select |
379 | name: authors |
380 | label: Author |
381 | # Convert the drop-down to a multi-select list |
382 | multiple: 1 |
383 | # Display 3 entries (user can scroll to see others) |
384 | size: 3 |
385 | # One could argue we don't need to do filters or constraints for |
386 | # a select list, but it's smart to do validation and sanity |
387 | # checks on this data in case a user "hacks" the input |
d682d02d |
388 | # Add constraints to the field |
389 | constraints: |
d682d02d |
390 | # Make sure it's a number |
391 | - Integer |
392 | |
9cb64a37 |
393 | # The submit button |
cca5cd98 |
394 | - type: Submit |
395 | name: submit |
396 | value: Submit |
d682d02d |
397 | |
f279297a |
398 | # Global filters and constraints. |
cca5cd98 |
399 | constraints: |
f279297a |
400 | # The user cannot leave any fields blank |
401 | - Required |
ab0db558 |
402 | # If not all fields are required, move the Required constraint to the |
403 | # fields that are |
f279297a |
404 | filter: |
405 | # Remove whitespace at both ends |
406 | - TrimEdges |
407 | # Escape HTML characters for safety |
408 | - HTMLEscape |
cca5cd98 |
409 | |
0171092f |
410 | B<NOTE:> Copying and pasting YAML from perl documentation is sometimes |
1fba2369 |
411 | tricky. See the L<Config::General Config for this tutorial> section of |
412 | this document for a more foolproof config format. |
0171092f |
413 | |
d682d02d |
414 | The main changes are: |
415 | |
416 | =over 4 |
417 | |
418 | =item * |
419 | |
420 | The C<Select> element for C<authors> is changed from a single-select |
421 | drop-down to a multi-select list by adding configuration for the |
422 | C<multiple> and C<size> options in C<formfu_create.yml>. |
423 | |
424 | =item * |
425 | |
426 | Constraints are added to provide validation of the user input. See |
427 | L<HTML::FormFu::Constraint|HTML::FormFu::Constraint> for other |
428 | constraints that are available. |
429 | |
430 | =item * |
431 | |
432 | A variety of filters are run on every field to remove and escape |
433 | unwanted input. See L<HTML::FormFu::Filter|HTML::FormFu::Filter> |
434 | for more filter options. |
435 | |
436 | =back |
437 | |
438 | |
439 | =head2 Try Out the Updated Form |
440 | |
441 | Press C<Ctrl-C> to kill the previous server instance (if it's still |
442 | running) and restart it: |
443 | |
444 | $ script/myapp_server.pl |
445 | |
59d6a035 |
446 | Make sure you are still logged in as C<test01> and try adding a book |
447 | with various errors: title less than 5 characters, non-numeric rating, a |
448 | rating of 0 or 6, etc. Also try selecting one, two, and zero authors. |
449 | When you click Submit, the HTML::FormFu C<constraint> items will |
450 | validate the logic and insert feedback as appropriate. Try adding blank |
451 | spaces at the front or the back of the title and note that it will be |
452 | removed. |
453 | |
454 | |
455 | =head1 CREATE AND UPDATE/EDIT ACTION |
456 | |
457 | Let's expand the work done above to add an edit action. First, open |
458 | C<lib/MyApp/Controller/Books.pm> and add the following method to the |
459 | bottom: |
460 | |
461 | =head2 formfu_edit |
462 | |
463 | Use HTML::FormFu to update an existing book |
464 | |
465 | =cut |
466 | |
467 | sub formfu_edit :Local :FormConfig('books/formfu_create.yml') { |
468 | my ($self, $c, $id) = @_; |
469 | |
470 | # Get the specified book |
471 | my $book = $c->model('DB::Books')->find($id); |
472 | |
473 | # Make sure we were able to get a book |
474 | unless ($book) { |
475 | $c->flash->{error_msg} = "Invalid book -- Cannot edit"; |
476 | $c->response->redirect($c->uri_for('list')); |
477 | $c->detach; |
478 | } |
479 | |
480 | # Get the form that the :FormConfig attribute saved in the stash |
481 | my $form = $c->stash->{form}; |
482 | |
166c90a0 |
483 | # Check if the form has been submitted (vs. displaying the initial |
484 | # form) and if the data passed validation. "submitted_and_valid" |
59d6a035 |
485 | # is shorthand for "$form->submitted && !$form->has_errors" |
486 | if ($form->submitted_and_valid) { |
487 | # Save the form data for the book |
488 | $form->save_to_model($book); |
489 | # Set a status message for the user |
490 | $c->flash->{status_msg} = 'Book edited'; |
491 | # Return to the books list |
492 | $c->response->redirect($c->uri_for('list')); |
493 | $c->detach; |
494 | } else { |
495 | # Get the authors from the DB |
496 | my @authorObjs = $c->model("DB::Authors")->all(); |
497 | # Create an array of arrayrefs where each arrayref is an author |
498 | my @authors; |
499 | foreach (sort {$a->last_name cmp $b->last_name} @authorObjs) { |
500 | push(@authors, [$_->id, $_->last_name]); |
501 | } |
502 | # Get the select added by the config file |
503 | my $select = $form->get_element({type => 'Select'}); |
504 | # Add the authors to it |
505 | $select->options(\@authors); |
506 | # Populate the form with existing values from DB |
507 | $form->defaults_from_model($book); |
508 | } |
509 | |
510 | # Set the template |
511 | $c->stash->{template} = 'books/formfu_create.tt2'; |
512 | } |
513 | |
514 | Most of this code should look familiar to what we used in the |
515 | C<formfu_create> method (in fact, we should probably centralize some of |
516 | the common code in separate methods). The main differences are: |
517 | |
518 | =over 4 |
519 | |
520 | =item * |
521 | |
522 | We accept C<$id> as an argument via the URL. |
523 | |
524 | =item * |
525 | |
526 | We use C<$id> to look up the existing book from the database. |
527 | |
528 | =item * |
529 | |
530 | We make sure the C<$id> and book lookup returned a valid book. If not, |
531 | we set the error message and return to the book list. |
532 | |
533 | =item * |
534 | |
535 | If the form has been submitted and passes validation, we skip creating a |
536 | new book and just use C<$form-E<gt>save_to_model> to update the existing |
537 | book. |
538 | |
539 | =item * |
540 | |
541 | If the form is being displayed for the first time (or has failed |
542 | validation and it being redisplayed), we use |
543 | C<$form-E<gt>default_from_model> to populate the form with data from the |
544 | database. |
545 | |
546 | =back |
547 | |
548 | Then, edit C<root/src/books/list.tt2> and add a new link below the |
549 | existing "Delete" link that allows us to edit/update each existing book. |
550 | The last E<lt>tdE<gt> cell in the book list table should look like the |
551 | following: |
552 | |
ab0db558 |
553 | ... |
59d6a035 |
554 | <td> |
555 | [% # Add a link to delete a book %] |
8a7c5151 |
556 | <a href="[% c.uri_for('delete', book.id) %]">Delete</a> |
59d6a035 |
557 | [% # Add a link to edit a book %] |
8a7c5151 |
558 | <a href="[% c.uri_for('formfu_edit', book.id) %]">Edit</a> |
59d6a035 |
559 | </td> |
ab0db558 |
560 | ... |
561 | |
562 | B<Note:> Only add two lines (the "Add a link to edit a book" comment |
563 | and the href for C<formfu_edit>). Make sure you add it below the |
564 | existing C<delete> link. |
59d6a035 |
565 | |
566 | |
567 | =head2 Try Out the Edit/Update Feature |
568 | |
569 | Press C<Ctrl-C> to kill the previous server instance (if it's still |
570 | running) and restart it: |
571 | |
572 | $ script/myapp_server.pl |
573 | |
574 | Make sure you are still logged in as C<test01> and go to the |
575 | L<http://localhost:3000/books/list> URL in your browser. Click the |
576 | "Edit" link next to "Internetworking with TCP/IP Vol. II", change the |
577 | rating to a 3, the "II" at end of the title to the number "2", add |
578 | Stevens as a co-author (control-click), and click Submit. You will then |
579 | be returned to the book list with a "Book edited" message at the top in |
580 | green. Experiment with other edits to various books. |
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581 | |
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582 | |
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583 | =head2 Config::General Config for this tutorial |
584 | |
585 | If you are having difficulty with YAML config above, please save the |
586 | below into the file C<formfu_create.conf> and delete the |
587 | C<formfu_create.yml> file. The below is in |
588 | L<Config::General|Config::General> format which follows the syntax of |
589 | Apache config files. |
590 | |
591 | constraints Required |
592 | <elements> |
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593 | <constraints> |
594 | min 5 |
595 | max 40 |
596 | type Length |
597 | message Length must be between 5 and 40 characters |
598 | </constraints> |
599 | filter TrimEdges |
600 | filter HTMLEscape |
601 | name title |
602 | type Text |
603 | label Title |
604 | <attributes> |
605 | title Enter a book title here |
606 | </attributes> |
607 | </elements> |
608 | <elements> |
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609 | constraints Integer |
610 | filter TrimEdges |
611 | filter NonNumeric |
612 | name rating |
613 | type Text |
614 | label Rating |
615 | <attributes> |
616 | title Enter a rating between 1 and 5 here |
617 | </attributes> |
618 | </elements> |
619 | <elements> |
620 | constraints Integer |
621 | filter TrimEdges |
622 | filter HTMLEscape |
623 | name authors |
624 | type Select |
625 | label Author |
626 | multiple 1 |
627 | size 3 |
628 | </elements> |
629 | <elements> |
630 | value Submit |
631 | name submit |
632 | type Submit |
633 | </elements> |
634 | indicator submit |
635 | |
636 | |
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637 | |
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638 | =head1 AUTHOR |
639 | |
640 | Kennedy Clark, C<hkclark@gmail.com> |
641 | |
642 | Please report any errors, issues or suggestions to the author. The |
643 | most recent version of the Catalyst Tutorial can be found at |
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644 | L<http://dev.catalyst.perl.org/repos/Catalyst/Catalyst-Manual/5.70/trunk/lib/Catalyst/Manual/Tutorial/>. |
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645 | |
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646 | Copyright 2006-2008, Kennedy Clark, under Creative Commons License |
647 | (L<http://creativecommons.org/licenses/by-sa/3.0/us/>). |