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cf7-dynamic-select.php
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cf7-dynamic-select.php
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<?php
/*
Plugin Name: Dynamic Select for Contact Form 7
Plugin URI: https://github.com/Hube2/contact-form-7-dynamic-select-extension
Description: Provides a dynamic select field that accepts any shortcode to generate the select values. Requires Contact Form 7
Version: 2.0.3
Author: John A. Huebner II
Author URI: https://github.com/Hube2/
License: GPL
*/
// If this file is called directly, abort.
if (!defined('WPINC')) {
die;
}
//include(dirname(__FILE__).'/cf7-dynamic-select-examples.php');
new wpcf7_dynamic_select();
class wpcf7_dynamic_select
{
public function __construct()
{
add_action('plugins_loaded', array($this, 'init'), 20);
} // end public function __construct
public function init()
{
if (function_exists('wpcf7_add_form_tag')) {
/* Shortcode handler */
wpcf7_add_form_tag('dynamicselect', array($this, 'shortcode_handler'), true);
wpcf7_add_form_tag('dynamicselect*', array($this, 'shortcode_handler'), true);
} elseif (function_exists('wpcf7_add_shortcode')) {
wpcf7_add_shortcode('dynamicselect', array($this, 'shortcode_handler'), true);
wpcf7_add_shortcode('dynamicselect*', array($this, 'shortcode_handler'), true);
}
add_filter('wpcf7_validate_dynamicselect', array($this, 'validation_filter'), 10, 2);
add_filter('wpcf7_validate_dynamicselect*', array($this, 'validation_filter'), 10, 2);
add_action('admin_init', array($this, 'add_tg_generator'), 25);
} // end public function init
public function shortcode_handler($tag)
{
// generates html for form field
if (is_a($tag, 'WPCF7_FormTag')) {
$tag = (array)$tag;
}
if (empty($tag)) {
return '';
}
$name = $tag['name'];
if (empty($name)) {
return '';
}
$type = $tag['type'];
$options = (array)$tag['options'];
$values = (array)$tag['values'];
$wpcf7_contact_form = WPCF7_ContactForm::get_current();
$atts = '';
$name_att = $name;
$id_att = '';
$class_att = '';
$multiple_att = '';
$tabindex_att = '';
$class_att .= 'wpcf7-form-control wpcf7-select';
if ($type == 'dynamicselect*') {
$class_att .= ' wpcf7-validates-as-required';
$atts .= ' aria-required="true"';
}
$multiple = false;
$returnlabels = false;
if (count($options)) {
foreach ($options as $option) {
if ($option == 'multiple') {
$multiple_att = ' multiple="multiple"';
$multiple = true;
} elseif ($option == 'returnlabels') {
$returnlabels = true;
} elseif (preg_match('%^id:([-0-9a-zA-Z_]+)$%', $option, $matches)) {
$id_att = $matches[1];
} elseif (preg_match('%^class:([-0-9a-zA-Z_]+)$%', $option, $matches)) {
$class_att .= ' '.$matches[1];
} elseif (preg_match('%^tabindex:(\d+)$%', $option, $matches)) {
$tabindex_att = intval($matches[1]);
}
} // end foreach options
} // end if count $options
if ($multiple) {
$name_att .= '[]';
}
$atts .= ' name="'.$name_att.'"';
if ($id_att) {
$atts .= ' id="'.trim($id_att).'"';
}
if ($class_att) {
$atts .= ' class="'.trim($class_att).'"';
}
if ($tabindex_att) {
$atts .= ' tabindex-"'.$tabindex_att.'"';
}
$atts .= ' '.$multiple_att;
$value = '';
if (is_a($wpcf7_contact_form, 'WPCF7_ContactForm') && $wpcf7_contact_form->is_posted()) {
if (isset($_POST['_wpcf7_mail_sent']) && $_POST['_wpcf7_mail_sent']['ok']) {
$value = '';
} else {
$value = stripslashes_deep($_POST[$name]);
}
} else {
if (isset($_GET[$name])) {
$value = stripslashes_deep($_GET[$name]);
}
}
$filter = '';
$filter_args = array();
$filter_string = '';
if (isset($values[0])) {
$filter_string = $values[0];
}
if ($filter_string != '') {
$filter_parts = explode(' ', $filter_string);
$filter = trim($filter_parts[0]);
$count = count($filter_parts);
for ($i=1; $i<$count; $i++) {
if (trim($filter_parts[$i]) != '') {
$arg_parts = explode('=', $filter_parts[$i]);
if (count($arg_parts) == 2) {
$filter_args[trim($arg_parts[0])] = trim($arg_parts[1], ' \'');
} else {
$filter_args[] = trim($arg_parts[0], ' \'');
}
} // end if filter part
} // end for
} // end if filter string
if ($filter == '') {
return $filter;
}
//$field_options = do_shortcode('['.$shortcode.']');
//echo '<pre>'; print_r($field_options); echo '</pre>';
//echo 'here'; die;
//echo $name.': '.$filter.'<br />';
$field_options = apply_filters($filter, array(), $filter_args);
//echo 'FILTER: ',$filter.'<br />FILTER_ARGS: <pre>'; print_r($filter_args); echo '</pre> FIELD_OPTIONS: <pre>'; print_r($field_options); echo '</pre>';
//echo '<pre>'; print_r($field_options); echo '</pre>';
if (!is_array($field_options) || !count($field_options)) {
// filter did not return an array of values
return '';
}
$validation_error = '';
if (is_a($wpcf7_contact_form, 'WPCF7_ContactForm')) {
$validation_error = $wpcf7_contact_form->validation_error($name);
}
//echo '<pre>'; print_r($wpcf7_contact_form); echo '</pre>';
$invalid = 'false';
if ($validation_error) {
$invalid = true;
$atts .= ' aria-invalid="'.$invalid.'"';
}
$default = '';
if (isset($field_options['default'])) {
$default = $field_options['default'];
unset($field_options['default']);
}
if (!is_array($default)) {
$default = array($default);
}
if (!$multiple && count($default) > 1) {
$default = array(array_pop($default));
}
$use_default = true;
if (isset($_POST[$name]) || isset($_GET[$name])) {
$use_default = false;
}
ob_start();
?>
<span class="wpcf7-form-control-wrap <?php echo $name; ?>">
<select <?php echo trim($atts); ?>>
<?php
foreach ($field_options as $option_label => $option_value) {
$option_value = esc_attr($option_value);
$option_label = esc_attr($option_label);
?>
<option value="<?php echo $option_value; ?>"<?php
if (!$use_default) {
if (!is_array($value) && $value == $option_value) {
echo ' selected="selected"';
} elseif (is_array($value) && in_array($option_value, $value)) {
echo ' selected="selected"';
}
} else {
if (in_array($option_value, $default)) {
echo ' selected="selected"';
}
}
?>><?php echo $option_label; ?></option>
<?php
} // end foreach field value
?>
</select>
<?php echo $validation_error; ?>
</span>
<?php
$html = ob_get_clean();
return $html;
} // end public function shortcode_handler
public function validation_filter($result, $tag)
{
$tag_o = $tag;
if (is_a($tag, 'WPCF7_FormTag')) {
$tag = (array)$tag;
}
// valiedates field on submit
$wpcf7_contact_form = WPCF7_ContactForm::get_current();
$type = $tag['type'];
$name = $tag['name'];
if ($type != 'dynamicselect*') {
return $result;
}
$value_found = false;
if (isset($_POST[$name])) {
$value = $_POST[$name];
if (!is_array($value) && trim($value) != '') {
$value_found = true;
}
if (is_array($value) && count($value)) {
foreach ($value as $item) {
if (trim($item) != '') {
$value_found = true;
break;
}
} // end foreach value
} // end if array && count
} // end if set
if (!$value_found) {
$result->invalidate($tag_o, wpcf7_get_message('invalid_required'));
//$result['valid'] = false;
//$result['reason'][$name] = $wpcf7_contact_form->message('invalid_required');
}
return $result;
} // end public function validation_filter
public function add_tg_generator()
{
// called on init to add the tag generator or cf7
// wpcf7_add_tag_generator($name, $title, $elm_id, $callback, $options = array())
if (!function_exists('wpcf7_add_tag_generator')) {
return;
}
$name = 'dynamicselect';
$title = __('Dynamic Select field', 'wpcf7');
$elm_id = 'wpcf7-tg-pane-dynamicselect';
$callback = array($this, 'tg_pane');
wpcf7_add_tag_generator($name, $title, $elm_id, $callback);
} // end public function add_tag_generator
public function tg_pane($form, $args = '')
{
// output the code for CF7 tag generator
$type='dynamicselect';
if (class_exists('WPCF7_TagGenerator')) {
// tag generator for CF7 >= v4.2
$args = wp_parse_args($args, array());
$desc = __('Generate a form-tag for a Dynamic Select field. For more details, see %s.');
$desc_link = '<a href="https://wordpress.org/plugins/contact-form-7-dynamic-select-extension/" target="_blank">'.__('Contact Form 7 - Dynamic Select Extension').'</a>';
?>
<div class="control-box">
<fieldset>
<legend><?php echo sprintf(esc_html($desc), $desc_link); ?></legend>
<table class="form-table">
<tbody>
<tr>
<th scope="row">
<label for="<?php
echo esc_attr($args['content'].'-required'); ?>"><?php
echo esc_html(__('Required field', 'contact-form-7')); ?></label>
</th>
<td>
<input type="checkbox" name="required" id="<?php
echo esc_attr($args['content'].'-required'); ?>" />
</td>
</tr>
<tr>
<th scope="row">
<label for="<?php
echo esc_attr($args['content'].'-name'); ?>"><?php
echo esc_html(__('Name', 'contact-form-7')); ?></label>
</th>
<td>
<input type="text" name="name" class="tg-name oneline" id="<?php
echo esc_attr($args['content'].'-name'); ?>" />
</td>
</tr>
<tr>
<th scope="row">
<label for="<?php
echo esc_attr($args['content'].'-id'); ?>"><?php
echo esc_html(__('Id attribute', 'contact-form-7')); ?></label>
</th>
<td>
<input type="text" name="id" class="idvalue oneline option" id="<?php
echo esc_attr($args['content'].'-id'); ?>" />
</td>
</tr>
<tr>
<th scope="row">
<label for="<?php
echo esc_attr($args['content'].'-class'); ?>"><?php
echo esc_html(__('Class attribute', 'contact-form-7'));?></label>
</th>
<td>
<input type="text" name="class" class="classvalue oneline option" id="<?php
echo esc_attr($args['content'].'-class'); ?>" />
</td>
</tr>
<tr>
<th scope="row">
<label for="<?php
echo esc_attr($args['content'].'-values'); ?>"><?php
echo esc_html(__('Filter')); ?></label>
</th>
<td>
<input type="text" name="values" class="tg-name oneline" id="<?php
echo esc_attr($args['content'].'-values'); ?>" /><br />
<?php
echo esc_html(__('You can enter any filter. Use single quotes only.
See docs & examples.'));
?>
</td>
</tr>
<tr>
<th scope="row">
<label for="<?php
echo esc_attr($args['content'].'-multiple'); ?>"><?php
echo esc_html(__('Allow multiple selections', 'contact-form-7')); ?></label>
</th>
<td>
<input type="checkbox" name="multiple" class="multiplevalue option" id="<?php
echo esc_attr($args['content'].'-multiple'); ?>" />
</td>
</tr>
<!--
<tr>
<th scope="row">
<label for="<?php
echo esc_attr($args['content'].'-returnlabels'); ?>"><?php
echo esc_html(__('Return Label(s)', 'contact-form-7')); ?></label>
</th>
<td>
<input type="checkbox" name="returnlabels" class="returnlabelsvalue option" id="<?php
echo esc_attr($args['content'].'-returnlabel'); ?>" />
Check this box to return labels instead of values.
</td>
</tr>
-->
</tbody>
</table>
</fieldset>
</div>
<div class="insert-box">
<input type="text" name="dynamicselect" class="tag code" readonly="readonly" onfocus="this.select()" />
<div class="submitbox">
<input type="button" class="button button-primary insert-tag" value="<?php
echo esc_attr(__('Insert Tag', 'contact-form-7')); ?>" />
</div>
</div>
<?php
} else {
// tag generator for CF7 <v4.2
// but modified slightly so it will still work with with >= v4.2
?>
<div id="wpcf7-tg-pane-<?php echo $type; ?>" class="control-box">
<form action="">
<table>
<tr>
<td>
<input type="checkbox" name="required" />
<?php echo esc_html(__('Required field?', 'contact-form-7')); ?>
</td>
</tr>
<tr>
<td>
<?php echo esc_html(__('Name', 'contact-form-7')); ?><br />
<input type="text" name="name" class="tg-name oneline" />
</td>
<td></td>
</tr>
</table>
<table>
<tr>
<td>
<code>id</code> (<?php echo esc_html(__('optional', 'contact-form-7')); ?>)<br />
<input type="text" name="id" class="idvalue oneline option" />
</td>
<td>
<code>class</code> (<?php echo esc_html(__('optional', 'contact-form-7')); ?>)<br />
<input type="text" name="class" class="classvalue oneline option" />
</td>
</tr>
<tr>
<td>
<?php echo esc_html(__('Filter')); ?><br />
<input type="text" name="values" class="oneline" /><br />
<?php echo esc_html(__('You can enter any filter. Use single quotes only. See docs & examples.')); ?>
</td>
<td>
<br />
<input class="option" type="checkbox" name="multiple">
Allow multiple selections?
</td>
</tr>
</table>
<div class="tg-tag">
<?php echo esc_html(__('Copy this code and paste it into the form left.', 'contact-form-7')); ?><br />
<input type="text" name="<?php
echo $type; ?>" class="tag" readonly="readonly" onfocus="this.select()" style="width:100%;" />
</div>
<div class="tg-mail-tag">
<?php echo esc_html(__('And, put this code into the Mail fields below.', 'contact-form-7')); ?><br />
<input type="text" class="mail-tag" readonly="readonly" onfocus="this.select()" style="width:100%;" />
</div>
</form>
</div>
<?php
}
} // end public function tag_pane
} // end class cf7_dynamic_select