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cmb2-field-ajax-search.php
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/
cmb2-field-ajax-search.php
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<?php
/**
* @package CMB2\Field_Ajax_Search
* @author Tsunoa
* @copyright Copyright (c) Tsunoa
*
* 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.
* 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' ) ) {
/**
* 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', array( $this, 'setup_admin_scripts' ) );
// Render
add_action( 'cmb2_render_post_ajax_search', array( $this, 'render' ), 10, 5 );
add_action( 'cmb2_render_user_ajax_search', array( $this, 'render' ), 10, 5 );
add_action( 'cmb2_render_term_ajax_search', array( $this, 'render' ), 10, 5 );
// Display
add_filter( 'cmb2_pre_field_display_post_ajax_search', array( $this, 'display' ), 10, 3 );
add_filter( 'cmb2_pre_field_display_user_ajax_search', array( $this, 'display' ), 10, 3 );
add_filter( 'cmb2_pre_field_display_term_ajax_search', array( $this, 'display' ), 10, 3 );
// Sanitize
add_action( 'cmb2_sanitize_post_ajax_search', array( $this, 'sanitize' ), 10, 4 );
add_action( 'cmb2_sanitize_user_ajax_search', array( $this, 'sanitize' ), 10, 4 );
add_action( 'cmb2_sanitize_term_ajax_search', array( $this, 'sanitize' ), 10, 4 );
// Ajax request
add_action( 'wp_ajax_cmb_ajax_search_get_results', array( $this, 'get_results' ) );
}
public function convert_as_id_css( $name ) {
return str_replace( '__', '_', str_replace( '[', '_', str_replace( ']', '_', $name ) ) );
}
/**
* Render field
*/
public function render( $field, $value, $object_id, $object_type, $field_type ) {
$field_name = $this->convert_as_id_css($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( ! is_array( $value ) && strpos( $value, ', ' ) ) {
$value = explode(', ', $value);
}
if( $field->args( 'multiple-item' ) == true ) {
$default_limit = -1; // 0 or -1 means unlimited
?><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 ) && ! empty( $value ) ){
if( ! is_array( $value ) ) {
$value = array( $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
endforeach;
}
?></ul><?php
$input_value = '';
} else {
if( is_array( $value ) ) {
$value = $value[0];
}
echo $field_type->input( array(
'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( array(
'type' => 'text',
'name' => '_' . $field->_name(),
'id' => $field_name,
'class' => 'cmb-ajax-search cmb-' . $object_to_search . '-ajax-search',
'value' => $input_value,
'desc' => false,
'data-multiple' => $field->args( 'multiple-item' ) ? $field->args( 'multiple-item' ) : '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
*/
public function display( $pre_output, $field, $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 ) ) : ?>
<?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 ) {
if ( !is_array( $value ) || !( array_key_exists('repeatable', $field_args ) && $field_args['repeatable'] == TRUE ) ) {
return $override_value;
}
$new_values = array();
foreach ( $value as $key => $val ) {
$new_values[$key] = array_filter( array_map( 'sanitize_text_field', $val ) );
}
return array_filter( array_values( $new_values ) );
}
/**
* Enqueue scripts and styles
*/
public function setup_admin_scripts() {
wp_register_script( 'jquery-autocomplete-ajax-search', plugins_url( 'js/jquery.autocomplete.min.js', __FILE__ ), array( 'jquery' ), self::VERSION, true );
wp_register_script( 'cmb-ajax-search', plugins_url( 'js/ajax-search.js', __FILE__ ), array( 'jquery', 'jquery-autocomplete-ajax-search', 'jquery-ui-sortable' ), self::VERSION, true );
wp_localize_script( 'cmb-ajax-search', 'cmb_ajax_search', array(
'ajaxurl' => admin_url( 'admin-ajax.php' ),
'nonce' => wp_create_nonce( 'cmb_ajax_search_get_results' ),
'options' => apply_filters( 'cmb_field_ajax_search_autocomplete_options', array() )
) );
wp_enqueue_script( 'cmb-ajax-search' );
wp_enqueue_style( 'cmb-ajax-search', plugins_url( 'css/ajax-search.css', __FILE__ ), array(), self::VERSION );
}
/**
* Ajax request : get results
*/
public function get_results() {
$nonce = $_POST['nonce'];
if ( ! wp_verify_nonce( $nonce, 'cmb_ajax_search_get_results' ) ) {
// Wrong nonce
die( json_encode( array(
'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( array(
'error' => __( 'Error : Wrong request parameters' )
) ) );
} else {
$query_args = json_decode( stripslashes( htmlspecialchars_decode( $_POST['query_args'] ) ), true );
$data = array();
$results = array();
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[] = array(
'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;
}
}
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;
}
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();
}