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cmb2-field-ajax-search.php
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<?php
/**
* CMB2 Field Type: Ajax Search
* @package CMB2
* @subpackage Field_Ajax_Search
* @author Tsunoa
* @copyright Copyright (c) Tsunoa
* @category WordPress_Plugin
* @license GPLv2+
* @version 1.0.3
*
* Plugin Name: CMB2 Field Type: Ajax Search
* Plugin URI: https://github.com/rubengc/cmb2-field-ajax-search
* GitHub Plugin URI: https://github.com/rubengc/cmb2-field-ajax-search
* Description: CMB2 field type to attach posts, users or terms.
* Version: 1.0.3
* Author: Tsunoa
* Author URI: https://tsunoa.com/
* License: GPLv2+
*/
// This plugin is based on CMB2 Field Type: Post Search Ajax (https://github.com/alexis-magina/cmb2-field-post-search-ajax)
// Special thanks to Magina (http://magina.fr/) for him awesome work
if (class_exists('CMB2_Field_Ajax_Search') === false) {
/**
* Class CMB2_Field_Ajax_Search
*/
class CMB2_Field_Ajax_Search {
/**
* Current version number
*/
const VERSION = '1.0.3';
/**
* Initialize the plugin by hooking into CMB2
*/
public function __construct() {
add_action('admin_enqueue_scripts', [$this, 'setup_admin_scripts']);
// Render
add_action('cmb2_render_post_ajax_search', [$this, 'render'], 10, 5);
add_action('cmb2_render_user_ajax_search', [$this, 'render'], 10, 5);
add_action('cmb2_render_term_ajax_search', [$this, 'render'], 10, 5);
// Display
add_filter('cmb2_pre_field_display_post_ajax_search', [$this, 'display'], 10, 3);
add_filter('cmb2_pre_field_display_user_ajax_search', [$this, 'display'], 10, 3);
add_filter('cmb2_pre_field_display_term_ajax_search', [$this, 'display'], 10, 3);
// Sanitize
add_action('cmb2_sanitize_post_ajax_search', [$this, 'sanitize'], 10, 4);
add_action('cmb2_sanitize_user_ajax_search', [$this, 'sanitize'], 10, 4);
add_action('cmb2_sanitize_term_ajax_search', [$this, 'sanitize'], 10, 4);
// Ajax request
add_action('wp_ajax_cmb_ajax_search_get_results', [$this, 'get_results']);
}
/**
* Render field
* @param \CMB2_Field $field
* @param mixed $value
* @param integer $object_id
* @param string $object_type
* @param \CMB2_Types $field_type
*
* @return void
*/
public function render(\CMB2_Field $field, $value, int $object_id, string $object_type, \CMB2_Types $field_type) {
$field_name = $field->_name();
$default_limit = 1;
// Current filter is cmb2_render_{$object_to_search}_ajax_search ( post, user or term )
$object_to_search = str_replace('cmb2_render_', '', str_replace('_ajax_search', '', current_filter()));
if ($field->args('multiple') == true) {
// 0 or -1 means unlimited
$default_limit = -1;
?>
<ul id="<?php echo $field_name; ?>_results" class="cmb-ajax-search-results cmb-<?php echo $object_to_search; ?>-ajax-search-results">
<?php
if (isset($value) === true && empty($value) === false) {
if (is_array($value) === false) {
$value = [$value];
}
foreach ($value as $val) {
?>
<li>
<?php if ($field->args('sortable')) : ?><span class="hndl"></span><?php endif; ?>
<input type="hidden" name="<?php echo $field_name; ?>[]" value="<?php echo $val; ?>">
<a href="<?php echo $this->object_link($field_name, $val, $object_to_search); ?>" target="_blank" class="edit-link">
<?php echo $this->object_text($field_name, $val, $object_to_search); ?>
</a>
<a class="remover"><span class="dashicons dashicons-no"></span><span class="dashicons dashicons-dismiss"></span></a>
</li>
<?php
}
}
?>
</ul>
<?php
$input_value = '';
} else {
if (is_array($value) === true) {
$value = $value[0];
}
echo $field_type->input(
[
'type' => 'hidden',
'name' => $field_name,
'value' => $value,
'desc' => false,
]
);
$input_value = ($value ? $this->object_text($field_name, $value, $object_to_search) : '');
}
echo $field_type->input(
[
'type' => 'text',
'name' => $field_name . '_input',
'id' => $field_name . '_input',
'class' => 'cmb-ajax-search cmb-' . $object_to_search . '-ajax-search',
'value' => $input_value,
'desc' => false,
'data-multiple' => $field->args('multiple') ? $field->args('multiple') : '0',
'data-limit' => $field->args('limit') ? $field->args('limit') : $default_limit,
'data-sortable' => $field->args('sortable') ? $field->args('sortable') : '0',
'data-object-type' => $object_to_search,
'data-query-args' => $field->args('query_args') ? htmlspecialchars(json_encode($field->args('query_args')), ENT_QUOTES, 'UTF-8') : '',
]
);
echo '<img src="' . admin_url('images/spinner.gif') . '" class="cmb-ajax-search-spinner" />';
$field_type->_desc(true, true);
}
/**
* Display field
* @param boolean|mixed $pre_output Default null value.
* @param \CMB2_Field $field Field object.
* @param \CMB2_Field_Display $display The `CMB2_Field_Display` object.
*
* @return boolean|mixed
*/
public function display($pre_output, \CMB2_Field $field, \CMB2_Field_Display $display) {
$object_type = str_replace('cmb2_pre_field_display_', '', str_replace('_ajax_search', '', current_filter()));
ob_start();
$field->peform_param_callback('before_display_wrap');
printf("<div class=\"cmb-column %s\" data-fieldtype=\"%s\">\n", $field->row_classes('display'), $field->type());
$field->peform_param_callback('before_display');
if (is_array($field->value) === true) : ?>
<?php foreach ($field->value as $value) : ?>
<a href="<?php echo $this->object_link($field->args['id'], $value, $object_type); ?>" class="edit-link">
<?php echo $this->object_text($field->args['id'], $value, $object_type); ?>
</a> <br>
<?php endforeach; ?>
<?php else : ?>
<a href="<?php echo $this->object_link($field->args['id'], $field->value, $object_type); ?>" class="edit-link">
<?php echo $this->object_text($field->args['id'], $field->value, $object_type); ?>
</a>
<?php
endif;
$field->peform_param_callback('after_display');
echo "\n</div>";
$field->peform_param_callback('after_display_wrap');
$pre_output = ob_get_clean();
return $pre_output;
}
/**
* Optionally save the latitude/longitude values into two custom fields
*/
public function sanitize($override_value, $value, $object_id, $field_args) {
$fid = $field_args['id'];
if (isset($field_args['render_row_cb'][0]->data_to_save[$field_args['id']]) === true) {
$value = $field_args['render_row_cb'][0]->data_to_save[$field_args['id']];
if ($field_args['type'] === 'term_ajax_search') {
if (is_array($value) === true) {
foreach ($value as $key => $item) {
$value[$key] = (int)$item;
}
}
wp_set_post_terms($object_id, $value, $fid, false);
}
} else {
$value = false;
}
return $value;
}
/**
* Enqueue scripts and styles
*/
public function setup_admin_scripts() {
wp_register_script('jquery-autocomplete-ajax-search', plugins_url('js/jquery.autocomplete.min.js', __FILE__), ['jquery'], self::VERSION, true);
wp_register_script(
'cmb-ajax-search', plugins_url('js/ajax-search.js', __FILE__), [
'jquery',
'jquery-autocomplete-ajax-search',
'jquery-ui-sortable',
],
self::VERSION, true
);
wp_localize_script(
'cmb-ajax-search', 'cmb_ajax_search', [
'ajaxurl' => admin_url('admin-ajax.php'),
'nonce' => wp_create_nonce('cmb_ajax_search_get_results'),
'options' => apply_filters('cmb_field_ajax_search_autocomplete_options', []),
]
);
wp_enqueue_script('cmb-ajax-search');
wp_enqueue_style('cmb-ajax-search', plugins_url('css/ajax-search.css', __FILE__), [], self::VERSION);
}
/**
* Ajax request : get results
* @return void
*/
public function get_results() {
$nonce = $_POST['nonce'];
if (!wp_verify_nonce($nonce, 'cmb_ajax_search_get_results')) {
// Wrong nonce
die(
json_encode(
[
'error' => __('Error : Unauthorized action'),
]
)
);
} else if ((!isset($_POST['field_id']) || empty($_POST['field_id']))
|| (!isset($_POST['object_type']) || empty($_POST['object_type']))) {
// Wrong request parameters (field_id and object_type are mandatory)
die(
json_encode(
[
'error' => __('Error : Wrong request parameters'),
]
)
);
} else {
$query_args = json_decode(stripslashes(htmlspecialchars_decode($_POST['query_args'])), true);
$data = [];
$results = [];
switch ($_POST['object_type']) {
case 'post':
$query_args['s'] = $_POST['query'];
$query = new WP_Query($query_args);
$results = $query->posts;
break;
case 'user':
$query_args['search'] = '*' . $_POST['query'] . '*';
$query = new WP_User_Query($query_args);
$results = $query->results;
break;
case 'term':
$query_args['search'] = $_POST['query'];
$query = new WP_Term_Query($query_args);
$results = $query->terms;
break;
}
foreach ($results as $result) :
if ($_POST['object_type'] == 'term') {
$result_id = $result->term_id;
} else {
$result_id = $result->ID;
}
$data[] = [
'id' => $result_id,
'value' => $this->object_text($_POST['field_id'], $result_id, $_POST['object_type']),
'link' => $this->object_link($_POST['field_id'], $result_id, $_POST['object_type']),
];
endforeach;
wp_send_json($data);
exit;
}
}
/**
* Object text function
* @param integer $field_id The ID of the CMB2_Field
* @param integer $object_id The ID of the object
* @param string $object_type Type of object
* @return string
*/
public function object_text($field_id, $object_id, $object_type) {
$text = '';
if ($object_type == 'post') {
$text = get_the_title($object_id);
} else if ($object_type == 'user') {
$text = get_the_author_meta('display_name', $object_id);
} else if ($object_type == 'term') {
$term = get_term($object_id);
$text = $term->name;
}
$text = apply_filters("cmb_{$field_id}_ajax_search_result_text", $text, $object_id, $object_type);
return $text;
}
/**
* Object link function
* @param integer $field_id The ID of the CMB2_Field
* @param integer $object_id The ID of the object
* @param string $object_type Type of object
* @return string
*/
public function object_link($field_id, $object_id, $object_type) {
$link = '#';
if ($object_type == 'post') {
$link = get_edit_post_link($object_id);
} else if ($object_type == 'user') {
$link = get_edit_user_link($object_id);
} else if ($object_type == 'term') {
$link = get_edit_term_link($object_id);
}
$link = apply_filters("cmb_{$field_id}_ajax_search_result_link", $link, $object_id, $object_type);
return $link;
}
}
$cmb2_field_ajax_search = new CMB2_Field_Ajax_Search();
}