├── .gitignore
├── README.md
├── readme.txt
└── cf7-simple-hidden-field.php


/.gitignore:
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1 | _notes
2 | .DS_Store
3 | *.LCK
4 | *.svn
5 | 


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/README.md:
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 1 | Contact Form 7 - Simple Hidden Field
 2 | ====================================
 3 | 
 4 | Add simple & dynamic hidden fields in Contact Form 7
 5 | 
 6 | See readme.txt
 7 | 
 8 | # Adopt my Contact Form 7 (CF7) Plugins
 9 | 
10 | I am putting my 3 CF7 plugins up for adoption.
11 | 
12 | The reasons for this are:
13 | * I no longer use CF7 for my clients.
14 |   * It is too difficult to use for my average client
15 |   * It does not support the features my clients want
16 |   * The authour of CF7 makes too many backwards compatibility breaking changes
17 |   * I simply do not have time to keep up with maintenence for plugins I no longer use
18 | 
19 | These plugins do have users and are usefull for those that use CF7 and I'd rather someone else takes them over than let them die.
20 | 
21 | The 3 plugins involved are:
22 | * At WP
23 |   * [Dynamic Select for Contact Form 7](https://wordpress.org/plugins/contact-form-7-dynamic-select-extension/)
24 |   * [Hidden Field for Contact Form 7](https://wordpress.org/plugins/contact-form-7-simple-hidden-field/)
25 |   * [Dynamic Recipient for Contact Form 7](https://wordpress.org/plugins/contact-form-7-dynamic-mail-to/)
26 | * On Github
27 |   * [Dynamic Select for Contact Form 7](https://github.com/Hube2/contact-form-7-dynamic-select-extension)
28 |   * [Hidden Field for Contact Form 7](https://github.com/Hube2/contact-form-7-simple-hidden-field)
29 |   * [Dynamic Recipient for Contact Form 7](https://github.com/Hube2/contact-form-7-dynamic-mail-to)
30 | 
31 | These plugins were built to work togther
32 | * The dynamic select to populate drop downs
33 | * The dynamic recipient send emails to different people
34 | * The hidden field to supply the fields that the recipient plugin needs to work
35 | 
36 | If you are interested in adopting all 3 of these plugins please open up an issue in any of the Github repos for any of these plugins. Below is how I would like to do this, if you have other ideas you can bring them up when you open the issue.
37 | 
38 | * You fork all of these repos
39 | * You maintian, update and improve these plugins as needed an send me pull requests
40 | * You take over supporting these plugins on Github and WP (answer questions etc)
41 | * I will, for a short time continue to update the WP repo with your changes
42 | * At some time in the future I will transfer ownership of the both the Github and WordPress repos to you.


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/readme.txt:
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  1 | === Hidden Field for Contact Form 7 ===
  2 | Contributors: Hube2
  3 | Tags: adopt-me, contact form 7 simeple hidden field
  4 | Requires at least: 4.0
  5 | Tested up to: 4.9
  6 | Stable tag: 2.0.2
  7 | Donate link: https://www.paypal.com/cgi-bin/webscr?cmd=_donations&business=hube02%40earthlink%2enet&lc=US&item_name=Donation%20for%20WP%20Plugins%20I%20Use&no_note=0&cn=Add%20special%20instructions%20to%20the%20seller%3a&no_shipping=1&currency_code=USD&bn=PP%2dDonationsBF%3abtn_donateCC_LG%2egif%3aNonHosted
  8 | License: GPLv2 or later
  9 | License URI: http://www.gnu.org/licenses/gpl-2.0.html
 10 | 
 11 | Add simeple hidden fields in Contact Form 7
 12 | 
 13 | 
 14 | == Description ==
 15 | 
 16 | Addopt this plugin. [Please see details on Github](https://github.com/Hube2/contact-form-7-simple-hidden-field).
 17 | 
 18 | Create simple hidden fields and dynamically generated hidden fields with Conact Form 7
 19 | 
 20 | Simple Hidden fields are just that, simple hidden fields
 21 | 
 22 | *** New Dynamic Hidden Fields ***
 23 | 
 24 | How to create dynamic hidden fields
 25 | 
 26 | 1) Create a filter to be called from your CF7 Dynamic Select Field.
 27 | 
 28 | Example Filter:
 29 | 
 30 | `function cf7_dynamic_hidden_do_example1($value, $args=array()) {
 31 | 	$value = 'new value';
 32 | 	return $value;
 33 | } // end function cf7_dynamic_select_do_example1
 34 | add_filter('wpcf7_dynamic_hidden_example1', 
 35 |              'cf7_dynamic_hidden_do_example1', 10, 2);`
 36 | 
 37 | 2) Enter the filter name and any arguments into the Filter Field when adding a Dynamic Hidden Field.
 38 | For example, if we need to supply a post_id so that the filter can get the post title
 39 | filter value entered would look something like this:
 40 | 
 41 | `my-filter post_id=9`
 42 | 
 43 | ***Do Not Include any extra spaces or quotes arround values, names or the =***
 44 | 
 45 | You can pass any number are arguments to your filter and they will be converted into an array. For example the
 46 | following:
 47 | 
 48 | `my-filter post_id=101 author_id=2`
 49 | 
 50 | This will call the function assocaited with the filter hook 'my-filter' with an arguments the argument array of:
 51 | `$args = array(
 52 |     'post_id'   => 101,
 53 |     'author_id' => 2
 54 | )`
 55 | 
 56 | If the filter does not exist or your filter does not return a value then the value of the hidden field will be left empty.
 57 | 
 58 | [Also on GitHub](https://github.com/Hube2/contact-form-7-simple-hidden-field)
 59 | 
 60 | == Installation ==
 61 | 
 62 | 1. Upload the files to the plugin folder of your site
 63 | 2. Activate it from the Plugins Page
 64 | 
 65 | 
 66 | == Screenshots ==
 67 | 
 68 | 
 69 | == Frequently Asked Questions ==
 70 | 
 71 | = Why Filters? =
 72 | 
 73 | Many other plugins of this type use shortcodes. I'm not a real fan of shortcodes, but that's not the only
 74 | reason. 
 75 | 
 76 | Filters are much more flexible that shortcodes. 
 77 | 
 78 | For example, a shortcode cannot return an array. A shortcode pretty much requires that only a text value is returned.
 79 | 
 80 | 
 81 | == Changelog ==
 82 | 
 83 | = 2.0.2 =
 84 | * corrected to work with CF7 >= 4.8
 85 | 
 86 | = 2.0.1 =
 87 | * corrected fatal function call error due to update in CF7
 88 | 
 89 | = 2.0.0 =
 90 | * Replaced depricated CF7 function calls
 91 | 
 92 | = 1.2.1 =
 93 | 
 94 | * Corrected a bug, incorrect field type name for dynamic hidden field when creating new field, introduced in 1.2.0
 95 | 
 96 | = 1.2.0 =
 97 | 
 98 | * Updated tag page to be completely compatible w/ CF7 >= V4.2
 99 | * Backwards compatible w/ CF7 < V4.2
100 | 
101 | = 1.1.3 =
102 | 
103 | * Updated to work with CF7 V4.2 (tag pane still needs some work to make it 100% but it can be used and it will still work with previous versions of CF7)
104 | 
105 | = 1.1.2 =
106 | 
107 | * Added ability to preset value with query string
108 | 
109 | = 1.1.1 =
110 | 
111 | * Added autocomplete="off" attribute to all hidden fields
112 | 
113 | = 1.1.0 =
114 | 
115 | * Added Dynamic Hidden Field
116 | 
117 | = 1.0.0 =
118 | 
119 | * initial release


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/cf7-simple-hidden-field.php:
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  1 | <?php 
  2 | 
  3 | 	/*
  4 | 		Plugin Name: Hidden Field for Contact Form 7
  5 | 		Plugin URI: https://github.com/Hube2/contact-form-7-simple-hidden-field
  6 | 		Description: Simple Hidden Fields for Contact Form 7. Requires contact form 7
  7 | 		Version: 2.0.2
  8 | 		Author: John A. Huebner II
  9 | 		Author URI: https://github.com/Hube2/
 10 | 		License: GPL
 11 | 	*/
 12 | 	
 13 | 	// If this file is called directly, abort.
 14 | 	if (!defined('WPINC')) { die; }
 15 | 	
 16 | 	new wpcf7_simple_hidden_field();
 17 | 	
 18 | 	class wpcf7_simple_hidden_field {
 19 | 		
 20 | 		public function __construct() {
 21 | 			add_action('plugins_loaded', array($this, 'init'), 20);
 22 | 		} // end public function __construct
 23 | 		
 24 | 		public function init() {
 25 | 			if(function_exists('wpcf7_add_form_tag')){
 26 | 				/* Shortcode handler */		
 27 | 				wpcf7_add_form_tag('simplehidden', array($this, 'simple_shortcode_handler'), true);
 28 | 				wpcf7_add_form_tag('dynamichidden2', array($this, 'dynamic_shortcode_handler'), true);
 29 | 			} else {
 30 | 				wpcf7_add_shortcode('simplehidden', array($this, 'simple_shortcode_handler'), true);
 31 | 				wpcf7_add_shortcode('dynamichidden2', array($this, 'dynamic_shortcode_handler'), true);
 32 | 			}
 33 | 			add_filter('wpcf7_validate_simplehidden', array($this, 'validation_filter'), 10, 2);
 34 | 			add_filter('wpcf7_validate_dynamichidden2', array($this, 'validation_filter'), 10, 2);
 35 | 			add_action('admin_init', array($this, 'add_tg_generator'), 25);
 36 | 			add_filter('test_hidden_field_filter', array($this, 'test_filter'), 10, 2);
 37 | 		} // end public function init
 38 | 		
 39 | 		public function test_filter($value, $args) {
 40 | 			return 'this is a test';
 41 | 		}
 42 | 		
 43 | 		public function simple_shortcode_handler($tag) {
 44 | 			// generates html for form field
 45 | 			if (is_a($tag, 'WPCF7_FormTag')) {
 46 | 				$tag = (array)$tag;
 47 | 			}
 48 | 			if (empty($tag)) {
 49 | 				return '';
 50 | 			}
 51 | 			$name = $tag['name'];
 52 | 			if (empty($name)) {
 53 | 				return '';
 54 | 			}
 55 | 			$wpcf7_contact_form = WPCF7_ContactForm::get_current();
 56 | 			// most attributes not really needed, not included
 57 | 			$name_att = $name;
 58 | 			$value = '';
 59 | 			$values = (array)$tag['values'];
 60 | 			if (isset($values[0])) {
 61 | 				$value = $values[0];
 62 | 			} elseif (isset($_GET[$name])) {
 63 | 				$value = sanitize_text_field($_GET[$name]);
 64 | 			}
 65 | 			$atts = ' name="'.$name.'" value="'.$value.'" autocomplete="off"';
 66 | 			$html = '<input type="hidden"'.$atts.' />';
 67 | 			return $html;
 68 | 		} // end public function shortcode_handler
 69 | 		
 70 | 		public function dynamic_shortcode_handler($tag) {
 71 | 			// generates html for form field
 72 | 			$tag_o = $tag;
 73 | 			if (is_a($tag, 'WPCF7_FormTag')) {
 74 | 				$tag = (array)$tag;
 75 | 			}
 76 | 			$name = $tag['name'];
 77 | 			if (empty($name)) {
 78 | 				return '';
 79 | 			}
 80 | 			$wpcf7_contact_form = WPCF7_ContactForm::get_current();
 81 | 			// most attributes not really needed, not included
 82 | 			$name_att = $name;
 83 | 			$filter = '';
 84 | 			$filter_args = array();
 85 | 			$filter_string = '';
 86 | 			$values = $tag['values'];
 87 | 			if (isset($values[0])) {
 88 | 				$filter_string = $values[0];
 89 | 			}
 90 | 			//echo $filter_string;
 91 | 			if ($filter_string != '') {
 92 | 				$filter_parts = explode(' ', $filter_string);
 93 | 				$filter = trim($filter_parts[0]);
 94 | 				$count = count($filter_parts);
 95 | 				for($i=1; $i<$count; $i++) {
 96 | 					if (trim($filter_parts[$i]) != '') {
 97 | 						$arg_parts = explode('=', $filter_parts[$i]);
 98 | 						if (count($arg_parts) == 2) {
 99 | 							$filter_args[trim($arg_parts[0])] = trim($arg_parts[1], ' \'');
100 | 						} else {
101 | 							$filter_args[] = trim($arg_parts[0], ' \'');
102 | 						}
103 | 					} // end if filter part
104 | 				} // end for
105 | 			} // end if filter string
106 | 			$value = '';
107 | 			if ($filter != '') {
108 | 				$value = apply_filters($filter, $value, $filter_args);
109 | 			}
110 | 			$atts = ' name="'.$name.'" value="'.$value.'" autocomplete="off"';
111 | 			$html = '<input type="hidden"'.$atts.' />';
112 | 			return $html;
113 | 		} // end public function shortcode_handler
114 | 		
115 | 		public function validation_filter($result, $tag) {
116 | 			// validates field on submit
117 | 			// not required, it's a simple hidden field
118 | 			return $result;
119 | 		} // end public function validation_filter
120 | 		
121 | 		public function add_tg_generator() {
122 | 			// called on init to add the tag generator or cf7
123 | 			// wpcf7_add_tag_generator($name, $title, $elm_id, $callback, $options = array())
124 | 			if (!function_exists('wpcf7_add_tag_generator')) {
125 | 				return;
126 | 			}
127 | 			$name = 'simplehidden';
128 | 			$title = __('Simple Hidden Field', 'wpcf7');
129 | 			$elm_id = 'wpcf7-tg-pane-simplehidden';
130 | 			$callback = array($this, 'simple_tg_pane');
131 | 			wpcf7_add_tag_generator($name, $title, $elm_id, $callback);
132 | 			$name = 'dynamichidden2';
133 | 			$title = __('Dynamic Hidden Field', 'wpcf7');
134 | 			$elm_id = 'wpcf7-tg-pane-dynamichidden2';
135 | 			$callback = array($this, 'dynamic_tg_pane');
136 | 			wpcf7_add_tag_generator($name, $title, $elm_id, $callback);
137 | 		} // end public function add_tag_generator
138 | 		
139 | 		public function simple_tg_pane($form, $args = '') {
140 | 			// output the code for CF7 tag generator
141 | 			if (class_exists('WPCF7_TagGenerator')) {
142 | 				// tag generator for CF7 >= v4.2
143 | 				$args = wp_parse_args( $args, array() );
144 | 				$desc = __('Generate a form-tag for a Simple Hidden field. For more details, see %s.');
145 | 				$desc_link = '<a href="https://wordpress.org/plugins/contact-form-7-simple-hidden-field/" target="_blank">'.__( 'Contact Form 7 - Simple Hidden Field').'</a>';
146 | 				?>
147 | 					<div class="control-box">
148 | 						<fieldset>
149 | 							<legend><?php echo sprintf(esc_html($desc), $desc_link); ?></legend>
150 | 							<table class="form-table">
151 | 								<tbody>
152 | 									<tr>
153 | 										<th scope="row">
154 | 											<label for="<?php 
155 | 													echo esc_attr($args['content'].'-name'); ?>"><?php 
156 | 													echo esc_html(__('Name', 'contact-form-7')); ?></label>
157 | 										</th>
158 | 										<td>
159 | 											<input type="text" name="name" class="tg-name oneline" id="<?php 
160 | 													echo esc_attr($args['content'].'-name' ); ?>" />
161 | 										</td>
162 | 									</tr>
163 | 									<tr>
164 | 										<th scope="row">
165 | 											<label for="<?php 
166 | 													echo esc_attr($args['content'].'-values'); ?>"><?php 
167 | 													echo esc_html(__('Value', 'contact-form-7')); ?></label>
168 | 										</th>
169 | 										<td>
170 | 											<input type="text" name="values" class="oneline" id="<?php 
171 | 													echo esc_attr($args['content'].'-values' ); ?>" /><br />
172 | 											<?php echo esc_html(__('Enter the value for the hidden field')); ?>
173 | 										</td>
174 | 									</tr>
175 | 								</tbody>
176 | 							</table>
177 | 						</fieldset>
178 | 					</div>
179 | 					<div class="insert-box">
180 | 						<input type="text" name="simplehidden" class="tag code" readonly="readonly" onfocus="this.select()" />
181 | 						<div class="submitbox">
182 | 							<input type="button" class="button button-primary insert-tag" value="<?php 
183 | 									echo esc_attr(__('Insert Tag', 'contact-form-7')); ?>" />
184 | 						</div>
185 | 					</div>
186 | 				<?php 
187 | 			} else {
188 | 				$type='simplehidden'
189 | 				// tag generator for CF7 <v4.2
190 | 				// but modified slightly so it will still work with with >= v4.2
191 | 				?>
192 | 					<div id="wpcf7-tg-pane-<?php echo $type; ?>" class="control-box">
193 | 						<form action="">
194 | 							<table>
195 | 								<tr>
196 | 									<td>
197 | 										<?php echo esc_html(__('Name', 'contact-form-7')); ?><br />
198 | 										<input type="text" name="name" class="tg-name oneline" />
199 | 									</td>
200 | 									<td></td>
201 | 								</tr>
202 | 							</table>
203 | 							<table>
204 | 								<tr>
205 | 									<td>
206 | 										<?php echo esc_html(__('Value', 'contact-form-7')); ?><br />
207 | 											<input type="text" name="values" class="oneline" /><br />
208 | 											<?php echo esc_html(__('Enter the value for the hidden field')); ?>
209 | 									</td>
210 | 								</tr>
211 | 							</table>
212 | 							<div class="tg-tag">
213 | 								<?php echo esc_html(__('Copy this code and paste it into the form left.')); ?><br />
214 | 								<input type="text" name="<?php 
215 | 										echo $type; ?>" class="tag" readonly="readonly" onfocus="this.select()" style="width:100%;" />
216 | 							</div>
217 | 							<div class="tg-mail-tag">
218 | 								<?php echo esc_html(__('And, put this code into the Mail fields below.')); ?><br />
219 | 								<input type="text" class="mail-tag" readonly="readonly" onfocus="this.select()" style="width:100%;" />
220 | 							</div>
221 | 						</form>
222 | 					</div>
223 | 				<?php 
224 | 			}
225 | 		} // end public function simple_tg_pane
226 | 		
227 | 		public function dynamic_tg_pane($form, $args = '') {
228 | 			// output the code for CF7 tag generator
229 | 			if (class_exists('WPCF7_TagGenerator')) {
230 | 				// tag generator for CF7 >= v4.2
231 | 				$args = wp_parse_args( $args, array() );
232 | 				$desc = __('Generate a form-tag for a Dynamic Hidden field. For more details, see %s.');
233 | 				$desc_link = '<a href="https://wordpress.org/plugins/contact-form-7-simple-hidden-field/" target="_blank">'.__( 'Contact Form 7 - Simple Hidden Field').'</a>';
234 | 				?>
235 | 					<div class="control-box">
236 | 						<fieldset>
237 | 							<legend><?php echo sprintf(esc_html($desc), $desc_link); ?></legend>
238 | 							<table class="form-table">
239 | 								<tbody>
240 | 									<tr>
241 | 										<th scope="row">
242 | 											<label for="<?php 
243 | 													echo esc_attr($args['content'].'-name'); ?>"><?php 
244 | 													echo esc_html(__('Name', 'contact-form-7')); ?></label>
245 | 										</th>
246 | 										<td>
247 | 											<input type="text" name="name" class="tg-name oneline" id="<?php 
248 | 													echo esc_attr($args['content'].'-name' ); ?>" />
249 | 										</td>
250 | 									</tr>
251 | 									<tr>
252 | 										<th scope="row">
253 | 											<label for="<?php 
254 | 													echo esc_attr($args['content'].'-values'); ?>"><?php 
255 | 													echo esc_html(__('Filter')); ?></label>
256 | 										</th>
257 | 										<td>
258 | 											<input type="text" name="values" class="tg-name oneline" id="<?php 
259 | 													echo esc_attr($args['content'].'-values' ); ?>" /><br />
260 | 													<?php 
261 | 														echo esc_html(__('You can enter any filter. Use single quotes only. 
262 | 														                  See docs &amp; examples.'));
263 | 													?>
264 | 										</td>
265 | 									</tr>
266 | 								</tbody>
267 | 							</table>
268 | 						</fieldset>
269 | 					</div>
270 | 					<div class="insert-box">
271 | 						<input type="text" name="dynamichidden2" class="tag code" readonly="readonly" onfocus="this.select()" />
272 | 						<div class="submitbox">
273 | 							<input type="button" class="button button-primary insert-tag" value="<?php 
274 | 									echo esc_attr(__('Insert Tag', 'contact-form-7')); ?>" />
275 | 						</div>
276 | 					</div>
277 | 				<?php 
278 | 			} else {
279 | 				$type='dynamichidden2'
280 | 				?>
281 | 					<div id="wpcf7-tg-pane-<?php echo $type; ?>" class="control-box">
282 | 						<form action="">
283 | 							<table>
284 | 								<tr>
285 | 									<td>
286 | 										<?php echo esc_html(__('Name', 'contact-form-7')); ?><br />
287 | 										<input type="text" name="name" class="tg-name oneline" />
288 | 									</td>
289 | 									<td></td>
290 | 								</tr>
291 | 							</table>
292 | 							<table>
293 | 								<tr>
294 | 									<td>
295 | 										<?php echo esc_html(__('Filter')); ?><br />
296 | 											<input type="text" name="values" class="oneline" /><br />
297 | 											<?php echo esc_html(__('You can enter any filter. Use single quotes only. See docs &amp; examples.')); ?>
298 | 									</td>
299 | 								</tr>
300 | 							</table>
301 | 							<div class="tg-tag">
302 | 								<?php echo esc_html(__('Copy this code and paste it into the form left.', 'contact-form-7')); ?><br />
303 | 								<input type="text" name="<?php 
304 | 										echo $type; ?>" class="tag" readonly="readonly" onfocus="this.select()" style="width:100%;" />
305 | 							</div>
306 | 							<div class="tg-mail-tag">
307 | 								<?php echo esc_html(__('And, put this code into the Mail fields below.', 'contact-form-7')); ?><br />
308 | 								<input type="text" class="mail-tag" readonly="readonly" onfocus="this.select()" style="width:100%;" />
309 | 							</div>
310 | 						</form>
311 | 					</div>
312 | 				<?php 
313 | 			}
314 | 		} // end public function dynamic_tg_pane
315 | 		
316 | 	} // end class wpcf7_simple_hidden_field
317 | 	
318 | ?>


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