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Conditional Fields for Contact Form 7 / 2.0
Conditional Fields for Contact Form 7 v2.0
2.7.8 2.7.7 2.7.6 2.7.5 2.7.4 2.7.3 2.7.2 0.2.4 0.2.5 0.2.6 0.2.7 0.2.8 0.2.9 1.0 1.1 1.2 1.2.1 1.2.2 1.2.3 1.3 1.3.1 1.3.2 1.3.3 1.3.4 1.4 1.4.1 1.4.2 1.4.3 1.5 1.5.1 1.5.2 1.5.3 1.5.4 1.5.5 1.6.1 1.6.2 1.6.3 1.6.5 1.7 1.7.1 1.7.2 1.7.3 1.7.4 1.7.5 1.7.6 1.7.8 1.7.9 1.8 1.8.1 1.8.2 1.8.3 1.8.5 1.8.6 1.8.7 1.9 1.9.1 1.9.10 1.9.11 1.9.12 1.9.13 1.9.14 1.9.15 1.9.16 1.9.2 1.9.3 1.9.4 1.9.5 1.9.6 1.9.7 1.9.8 1.9.9 2.0 2.0.1 2.0.2 2.0.3 2.0.4 2.0.5 2.0.6 2.0.7 2.0.8 2.0.9 2.1 2.1.1 2.1.2 2.1.3 2.1.4 2.1.5 2.1.6 2.2 2.2.1 2.2.10 2.2.11 2.2.2 2.2.3 2.2.4 2.2.5 2.2.6 2.2.7 2.2.8 2.2.9 2.3 2.3.1 2.3.10 2.3.11 2.3.12 2.3.2 2.3.3 2.3.4 2.3.5 2.3.6 2.3.7 2.3.8 2.3.9 2.4 2.4.1 2.4.10 2.4.11 2.4.12 2.4.13 2.4.14 2.4.15 2.4.2 2.4.3 2.4.4 2.4.5 2.4.6 2.4.7 2.4.8 2.4.9 2.5 2.5.1 2.5.10 2.5.11 2.5.12 2.5.13 2.5.14 2.5.2 2.5.3 2.5.4 2.5.5 2.5.6 2.5.7 2.5.8 2.5.9 2.6 2.6.1 2.6.2 2.6.3 2.6.4 2.6.5 2.6.6 2.6.7 2.6.8 2.7 2.7.1 trunk 0.1 0.1.1 0.1.2 0.1.3 0.1.4 0.1.5 0.1.6 0.1.7 0.2 0.2.1 0.2.2 0.2.3
cf7-conditional-fields / cf7cf.php
cf7-conditional-fields Last commit date
js 5 years ago jsdoc-out 5 years ago Wpcf7cfMailParser.php 5 years ago admin-style.css 6 years ago admin-style.css.map 6 years ago admin-style.scss 6 years ago admin.php 5 years ago cf7cf.php 5 years ago contact-form-7-conditional-fields.php 5 years ago init.php 5 years ago readme.txt 5 years ago style.css 6 years ago tg_pane_group.php 5 years ago wpcf7cf-options.php 5 years ago
cf7cf.php
498 lines
1 <?php
2
3 class CF7CF {
4 private $hidden_fields = array();
5 private $visible_groups = array();
6 private $hidden_groups = array();
7 private $repeaters = array();
8
9 function __construct() {
10
11 // can't use wpcf7_enqueue_scripts hook, because it's possible that people
12 // want to disable the CF7 scripts. but in this case Conditional fields should still work.
13 // add_action('wpcf7_enqueue_scripts', array(__CLASS__, 'enqueue_js')); // <-- don't use this
14
15 // Enqueue_scripts moved to function outside class.
16
17 // add_action('wp_enqueue_scripts', array(__CLASS__, 'enqueue_js'), 20);
18 // add_action('wpcf7_enqueue_styles', array(__CLASS__, 'enqueue_css'));
19
20 // Register shortcodes
21 add_action('wpcf7_init', array(__CLASS__, 'add_shortcodes'));
22
23 // Tag generator
24 add_action('admin_init', array(__CLASS__, 'tag_generator'), 590);
25
26 // compatibility with CF7 multi-step forms by Webhead LLC.
27 add_filter( 'wpcf7_posted_data', array($this,'cf7msm_merge_post_with_cookie'), 8, 1 );
28
29 // compatibility with CF7 Multi Step by NinjaTeam https://wordpress.org/plugins/cf7-multi-step/
30 add_action('wp_ajax_cf7mls_validation', array($this,'cf7mls_validation_callback'),9);
31 add_action('wp_ajax_nopriv_cf7mls_validation', array($this,'cf7mls_validation_callback'),9);
32
33 add_filter( 'wpcf7_validate', array($this, 'skip_validation_for_hidden_fields'), 2, 2 );
34
35 // validation messages
36 add_action('wpcf7_config_validator_validate', array($this,'wpcf7cf_config_validator_validate'));
37
38
39 add_action("wpcf7_before_send_mail", [$this, 'hide_hidden_mail_fields'], 10, 3);
40
41 register_activation_hook(__FILE__, array($this, 'activate'));
42
43 if (is_admin()) {
44 require_once dirname(__FILE__) . '/admin.php';
45 }
46 }
47
48
49
50 /**
51 * Suppress invalid mailbox syntax errors on fields that contain existing conditional
52 */
53 function wpcf7cf_config_validator_validate(WPCF7_ConfigValidator $wpcf7_config_validator) {
54
55 // TODO: For now we kill every syntax error once a [groupname] tag is detected.
56 // Ideally, this function should check each string inside the group for invalid syntax.
57 // TODO 2: ajax validation not working yet, because $cf->scan_form_tags() does not seem to contain group tags if it's an ajax request. Need to investigate.
58
59 $cf = $wpcf7_config_validator->contact_form();
60 $all_group_tags = $cf->scan_form_tags();
61
62 foreach ($wpcf7_config_validator->collect_error_messages() as $err_type => $err) {
63
64 // print_r($err_type);
65
66 $parts = explode('.',$err_type);
67
68 $property = $parts[0];
69
70 if ($property == 'form') continue; // the 'form' field can be safely validated by CF7. No need to suppress it.
71
72 $sub_prop = $parts[1];
73 $prop_val = $cf->prop($property)[$sub_prop];
74
75
76 // TODO 2: Dirty hack. Because of TODO 2 we are just going to kill the error message if we detect the string '[/'
77 // Start removing here.
78 if (strpos($prop_val, '[/') !== false) {
79 $wpcf7_config_validator->remove_error($err_type, WPCF7_ConfigValidator::error_invalid_mailbox_syntax);
80 continue;
81 }
82 // TODO 2: Stop removing here. and uncomment code below.
83
84 // foreach ($all_group_tags as $form_tag) {
85 // if (strpos($prop_val, '['.$form_tag->name.']') !== false) {
86 // $wpcf7_config_validator->remove_error($err_type, WPCF7_ConfigValidator::error_invalid_mailbox_syntax);
87 // }
88 // }
89
90 }
91
92 return new WPCF7_ConfigValidator($wpcf7_config_validator->contact_form());
93 }
94
95 function activate() {
96 //add options with add_option and stuff
97 }
98
99 public static function add_shortcodes() {
100 if (function_exists('wpcf7_add_form_tag'))
101 wpcf7_add_form_tag('group', array(__CLASS__, 'shortcode_handler'), true);
102 else if (function_exists('wpcf7_add_shortcode')) {
103 wpcf7_add_shortcode('group', array(__CLASS__, 'shortcode_handler'), true);
104 } else {
105 throw new Exception('functions wpcf7_add_form_tag and wpcf7_add_shortcode not found.');
106 }
107 }
108
109 function group_shortcode_handler( $atts, $content = "" ) {
110 return $content;
111 }
112
113 public static function shortcode_handler($tag) {
114 //$tag = new WPCF7_Shortcode($tag);
115 $tag = new WPCF7_FormTag($tag);
116 //ob_start();
117 //print_r($tag);
118 //return print_r($tag, true);
119 return $tag->content;
120 }
121
122
123 public static function tag_generator() {
124 if (! function_exists( 'wpcf7_add_tag_generator'))
125 return;
126
127 wpcf7_add_tag_generator('group',
128 __('Conditional Fields Group', 'cf7-conditional-fields'),
129 'wpcf7-tg-pane-group',
130 array(__CLASS__, 'tg_pane')
131 );
132
133 do_action('wpcf7cf_tag_generator');
134 }
135
136 static function tg_pane( $contact_form, $args = '' ) {
137 $args = wp_parse_args( $args, array() );
138 $type = 'group';
139
140 $description = __( "Generate a group tag to group form elements that can be shown conditionally.", 'cf7-conditional-fields' );
141
142 include 'tg_pane_group.php';
143 }
144
145 /**
146 * Remove validation requirements for fields that are hidden at the time of form submission.
147 * Called using add_filter( 'wpcf7_validate_[tag_type]', array($this, 'skip_validation_for_hidden_fields'), 2, 2 );
148 * where the priority of 2 causes this to kill any validations with a priority higher than 2
149 *
150 * @param $result
151 * @param $tag
152 *
153 * @return mixed
154 */
155 function skip_validation_for_hidden_fields($result, $tags) {
156
157 if(isset($_POST)) {
158 $this->set_hidden_fields_arrays($_POST);
159 }
160
161 $invalid_fields = $result->get_invalid_fields();
162 $return_result = new WPCF7_Validation();
163
164 if (count($this->hidden_fields) == 0 || !is_array($invalid_fields) || count($invalid_fields) == 0) {
165 $return_result = $result;
166 } else {
167 foreach ($invalid_fields as $invalid_field_key => $invalid_field_data) {
168 if (!in_array($invalid_field_key, $this->hidden_fields)) {
169 // the invalid field is not a hidden field, so we'll add it to the final validation result
170 $return_result->invalidate($invalid_field_key, $invalid_field_data['reason']);
171 }
172 }
173 }
174
175 return apply_filters('wpcf7cf_validate', $return_result, $tags);
176
177 }
178
179 function cf7msm_merge_post_with_cookie($posted_data) {
180
181 if (!function_exists('cf7msm_get') || !key_exists('cf7msm_posted_data',$_COOKIE)) return $posted_data;
182
183 if (!$posted_data) {
184 $posted_data = WPCF7_Submission::get_instance()->get_posted_data();
185 }
186
187 // this will temporarily set the hidden fields data to the posted_data.
188 // later this function will be called again with the updated posted_data
189 $this->set_hidden_fields_arrays($_POST);
190
191 // get cookie data
192 $cookie_data = cf7msm_get('cf7msm_posted_data');
193 $cookie_data_hidden_group_fields = json_decode(stripslashes($cookie_data['_wpcf7cf_hidden_group_fields']));
194 $cookie_data_hidden_groups = json_decode(stripslashes($cookie_data['_wpcf7cf_hidden_groups']));
195 $cookie_data_visible_groups = json_decode(stripslashes($cookie_data['_wpcf7cf_visible_groups']));
196
197 // remove all the currently posted data from the cookie data (we don't wanna add it twice)
198 $cookie_data_hidden_group_fields = array_diff($cookie_data_hidden_group_fields, array_keys($posted_data));
199 $cookie_data_hidden_groups = array_diff((array) $cookie_data_hidden_groups, $this->hidden_groups, $this->visible_groups);
200 $cookie_data_visible_groups = array_diff((array) $cookie_data_visible_groups, $this->hidden_groups, $this->visible_groups);
201
202 // update current post data with cookie data
203 $posted_data['_wpcf7cf_hidden_group_fields'] = addslashes(json_encode(array_merge((array) $cookie_data_hidden_group_fields, $this->hidden_fields)));
204 $posted_data['_wpcf7cf_hidden_groups'] = addslashes(json_encode(array_merge((array) $cookie_data_hidden_groups, $this->hidden_groups)));
205 $posted_data['_wpcf7cf_visible_groups'] = addslashes(json_encode(array_merge((array) $cookie_data_visible_groups, $this->visible_groups)));
206
207 return $posted_data;
208 }
209
210 // compatibility with CF7 Multi Step by NinjaTeam https://wordpress.org/plugins/cf7-multi-step/
211 function cf7mls_validation_callback() {
212 $this->set_hidden_fields_arrays($_POST);
213 }
214
215 /**
216 * Finds the currently submitted form and set the hidden_fields variables accoringly
217 *
218 * @param bool|array $posted_data
219 */
220 function set_hidden_fields_arrays($posted_data = false) {
221
222 if (!$posted_data) $posted_data = $_POST;
223
224 $hidden_fields = json_decode(stripslashes($posted_data['_wpcf7cf_hidden_group_fields']));
225 if (is_array($hidden_fields) && count($hidden_fields) > 0) {
226 foreach ($hidden_fields as $field) {
227 $this->hidden_fields[] = $field;
228 if (wpcf7cf_endswith($field, '[]')) {
229 $this->hidden_fields[] = substr($field,0,strlen($field)-2);
230 }
231 }
232 }
233 $this->hidden_groups = json_decode(stripslashes($posted_data['_wpcf7cf_hidden_groups']));
234 $this->visible_groups = json_decode(stripslashes($posted_data['_wpcf7cf_visible_groups']));
235 $this->repeaters = json_decode(stripslashes($posted_data['_wpcf7cf_repeaters']));
236 $this->steps = json_decode(stripslashes($posted_data['_wpcf7cf_steps']));
237 }
238
239 function hide_hidden_mail_fields($form,$abort,$submission) {
240 $props = $form->get_properties();
241 $mails = ['mail','mail_2','messages'];
242 foreach ($mails as $mail) {
243 if (!is_array($props[$mail])) { continue; }
244 foreach ($props[$mail] as $key=>$val) {
245
246 $parser = new Wpcf7cfMailParser($val, $this->visible_groups, $this->hidden_groups, $this->repeaters, $_POST);
247
248 // $props[$mail][$key] = preg_replace_callback(WPCF7CF_REGEX_MAIL_GROUP, array($this, 'hide_hidden_mail_fields_regex_callback'), $val );
249 $props[$mail][$key] = $parser->getParsedMail();
250 }
251
252
253 }
254
255
256 //$props['mail']['body'] = 'xxx';
257 $form->set_properties($props);
258 }
259
260 function hide_hidden_mail_fields_regex_callback ( $matches ) {
261 $name = $matches[1];
262 $content = $matches[2];
263 if ( in_array( $name, $this->hidden_groups ) ) {
264 // The tag name represents a hidden group, so replace everything from [tagname] to [/tagname] with nothing
265 return '';
266 } elseif ( in_array( $name, $this->visible_groups ) ) {
267 // The tag name represents a visible group, so remove the tags themselves, but return everything else
268 // instead of just returning the $content, return the preg_replaced content :)
269 return preg_replace_callback(WPCF7CF_REGEX_MAIL_GROUP, array($this, 'hide_hidden_mail_fields_regex_callback'), $content );
270 } else {
271 // The tag name doesn't represent a group that was used in the form. Leave it alone (return the entire match).
272 return $matches[0];
273 }
274 }
275
276 public static function parse_conditions($string, $format='array') {
277 // Parse stuff like "show [g1] if [field] equals 2" to Array
278
279 preg_match_all(WPCF7CF_REGEX_CONDITIONS, $string, $matches);
280
281 $conditions = [];
282
283 $prev_then_field = '';
284 foreach ($matches[0] as $i=>$line) {
285 $then_field = $matches[1][$i];
286 $if_field = $matches[2][$i];
287 $operator = $matches[3][$i];
288 $if_value = $matches[4][$i];
289
290 $index = count($conditions);
291
292 if ($then_field == '') {
293 $index = $index -1;
294 $then_field = $prev_then_field;
295 } else {
296 $conditions[$index]['then_field'] = $then_field;
297 }
298
299 $conditions[$index]['and_rules'][] = [
300 'if_field' => $if_field,
301 'operator' => $operator,
302 'if_value' => $if_value,
303 ];
304
305 $prev_then_field = $then_field;
306
307 }
308
309 $conditions = array_values($conditions);
310
311 if ($format == 'array') {
312 return $conditions;
313 } else if ($format == 'json') {
314 return json_encode($conditions);
315 }
316 }
317
318 /**
319 * load the conditions from the form's post_meta
320 *
321 * @param string $form_id
322 * @return void
323 */
324 public static function getConditions($form_id) {
325 // make sure conditions are an array.
326 $options = get_post_meta($form_id,'wpcf7cf_options',true);
327 return is_array($options) ? $options : array(); // the meta key 'wpcf7cf_options' is a bit misleading at this point, because it only holds the form's conditions, no other options/settings
328 }
329
330 /**
331 * load the conditions from the form's post_meta as plain text
332 *
333 * @param string $form_id
334 * @return void
335 */
336 public static function getConditionsPlainText($form_id) {
337 return CF7CF::serializeConditions(CF7CF::getConditions($form_id));
338 }
339
340 public static function serializeConditions($array) {
341
342 $lines = [];
343
344 foreach ($array as $entry) {
345 $then_field = $entry['then_field'];
346 $and_rules = $entry['and_rules'];
347 $indent = strlen($then_field) + 4;
348 foreach ($and_rules as $i => $rule) {
349 $if_field = $rule['if_field'];
350 $operator = $rule['operator'];
351 $if_value = $rule['if_value'];
352
353 if ($i == 0) {
354 $lines[] = "show [${then_field}] if [${if_field}] ${operator} \"${if_value}\"";
355 } else {
356 $lines[] = str_repeat(' ',$indent)."and if [${if_field}] ${operator} \"${if_value}\"";
357 }
358 }
359 }
360
361 return implode("\n", $lines);
362 }
363
364 /**
365 * save the conditions to the form's post_meta
366 *
367 * @param string $form_id
368 * @return void
369 */
370 public static function setConditions($form_id, $conditions) {
371 return update_post_meta($form_id,'wpcf7cf_options',$conditions); // the meta key 'wpcf7cf_options' is a bit misleading at this point, because it only holds the form's conditions, no other options/settings
372 }
373 }
374
375 new CF7CF;
376
377 add_filter( 'wpcf7_contact_form_properties', 'wpcf7cf_properties', 10, 2 );
378
379 function wpcf7cf_properties($properties, $wpcf7form) {
380 // TODO: This function is called serveral times. The problem is that the filter is called each time we call get_properties() on a contact form.
381 // TODO: I haven't found a better way to solve this problem yet, any suggestions or push requests are welcome. (same problem in PRO/repeater.php)
382 if (!is_admin() || (defined('DOING_AJAX') && DOING_AJAX)) { // TODO: kind of hacky. maybe find a better solution. Needed because otherwise the group tags will be replaced in the editor as well.
383 $form = $properties['form'];
384
385 $form_parts = preg_split('/(\[\/?group(?:\]|\s.*?\]))/',$form, -1,PREG_SPLIT_NO_EMPTY | PREG_SPLIT_DELIM_CAPTURE);
386
387 ob_start();
388
389 $stack = array();
390
391 foreach ($form_parts as $form_part) {
392 if (substr($form_part,0,7) == '[group ') {
393 $tag_parts = explode(' ',rtrim($form_part,']'));
394
395 array_shift($tag_parts);
396
397 $tag_id = $tag_parts[0];
398 $tag_html_type = 'div';
399 $tag_html_data = array();
400
401 foreach ($tag_parts as $i => $tag_part) {
402 if ($i==0) continue;
403 else if ($tag_part == 'inline') $tag_html_type = 'span';
404 else if ($tag_part == 'clear_on_hide') $tag_html_data[] = 'data-clear_on_hide';
405 else if ($tag_part == 'disable_on_hide' && WPCF7CF_IS_PRO) $tag_html_data[] = 'data-disable_on_hide';
406 }
407
408 array_push($stack,$tag_html_type);
409
410 echo '<'.$tag_html_type.' data-id="'.$tag_id.'" data-orig_data_id="'.$tag_id.'" '.implode(' ',$tag_html_data).' data-class="wpcf7cf_group">';
411 } else if ($form_part == '[/group]') {
412 echo '</'.array_pop($stack).'>';
413 } else {
414 echo $form_part;
415 }
416 }
417
418 $properties['form'] = ob_get_clean();
419 }
420 return $properties;
421 }
422
423 add_action('wpcf7_form_hidden_fields', 'wpcf7cf_form_hidden_fields',10,1);
424
425 function wpcf7cf_form_hidden_fields($hidden_fields) {
426
427 $current_form = wpcf7_get_current_contact_form();
428 $current_form_id = $current_form->id();
429
430 $options = array(
431 'form_id' => $current_form_id,
432 'conditions' => CF7CF::getConditions($current_form_id),
433 'settings' => wpcf7cf_get_settings()
434 );
435
436 unset($options['settings']['license_key']); // don't show license key in the source code duh.
437
438 return array_merge($hidden_fields, array(
439 '_wpcf7cf_hidden_group_fields' => '',
440 '_wpcf7cf_hidden_groups' => '',
441 '_wpcf7cf_visible_groups' => '',
442 '_wpcf7cf_repeaters' => '[]',
443 '_wpcf7cf_steps' => '{}',
444 '_wpcf7cf_options' => ''.json_encode($options),
445 ));
446 }
447
448 function wpcf7cf_endswith($string, $test) {
449 $strlen = strlen($string);
450 $testlen = strlen($test);
451 if ($testlen > $strlen) return false;
452 return substr_compare($string, $test, $strlen - $testlen, $testlen) === 0;
453 }
454
455 add_filter( 'wpcf7_form_tag_data_option', 'wpcf7cf_form_tag_data_option', 10, 3 );
456
457 function wpcf7cf_form_tag_data_option($output, $args, $nog) {
458 $data = array();
459 return $data;
460 }
461
462 /* Scripts & Styles */
463
464 function wpcf7cf_load_js() {
465 return apply_filters( 'wpcf7cf_load_js', WPCF7CF_LOAD_JS );
466 }
467
468 function wpcf7cf_load_css() {
469 return apply_filters( 'wpcf7cf_load_css', WPCF7CF_LOAD_CSS );
470 }
471
472 add_action( 'wp_enqueue_scripts', 'wpcf7cf_do_enqueue_scripts', 20, 0 );
473
474 function wpcf7cf_do_enqueue_scripts() {
475 if ( wpcf7cf_load_js() ) {
476 wpcf7cf_enqueue_scripts();
477 }
478
479 if ( wpcf7cf_load_css() ) {
480 wpcf7cf_enqueue_styles();
481 }
482 }
483
484 function wpcf7cf_enqueue_scripts() {
485 if (is_admin()) return;
486 wp_enqueue_script('wpcf7cf-scripts', plugins_url('js/scripts.js', __FILE__), array('jquery'), WPCF7CF_VERSION, true);
487 wp_localize_script('wpcf7cf-scripts', 'wpcf7cf_global_settings',
488 array(
489 'ajaxurl' => admin_url('admin-ajax.php'),
490 )
491 );
492
493 }
494
495 function wpcf7cf_enqueue_styles() {
496 if (is_admin()) return;
497 wp_enqueue_style('cf7cf-style', plugins_url('style.css', __FILE__), array(), WPCF7CF_VERSION);
498 }