418 lines
6.6 KiB
PHP
418 lines
6.6 KiB
PHP
<?php
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if( ! defined( 'ABSPATH' ) ) exit; // Exit if accessed directly
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if( ! class_exists('acf_validation') ) :
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class acf_validation {
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/*
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* __construct
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*
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* This function will setup the class functionality
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*
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* @type function
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* @date 5/03/2014
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* @since 5.0.0
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*
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* @param n/a
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* @return n/a
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*/
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function __construct() {
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// vars
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$this->errors = array();
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// ajax
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add_action('wp_ajax_acf/validate_save_post', array($this, 'ajax_validate_save_post'));
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add_action('wp_ajax_nopriv_acf/validate_save_post', array($this, 'ajax_validate_save_post'));
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add_action('acf/validate_save_post', array($this, 'acf_validate_save_post'), 5);
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}
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/*
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* add_error
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*
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* This function will add an error message for a field
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*
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* @type function
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* @date 25/11/2013
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* @since 5.0.0
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*
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* @param $input (string) name attribute of DOM elmenet
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* @param $message (string) error message
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* @return $post_id (int)
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*/
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function add_error( $input, $message ) {
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// add to array
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$this->errors[] = array(
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'input' => $input,
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'message' => $message
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);
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}
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/*
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* get_error
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*
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* This function will return an error for a given input
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*
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* @type function
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* @date 5/03/2016
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* @since 5.3.2
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*
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* @param $input (string) name attribute of DOM elmenet
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* @return (mixed)
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*/
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function get_error( $input ) {
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// bail early if no errors
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if( empty($this->errors) ) return false;
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// loop
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foreach( $this->errors as $error ) {
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if( $error['input'] === $input ) return $error;
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}
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// return
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return false;
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}
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/*
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* get_errors
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*
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* This function will return validation errors
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*
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* @type function
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* @date 25/11/2013
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* @since 5.0.0
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*
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* @param n/a
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* @return (array|boolean)
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*/
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function get_errors() {
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// bail early if no errors
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if( empty($this->errors) ) return false;
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// return
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return $this->errors;
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}
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/*
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* reset_errors
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*
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* This function will remove all errors
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*
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* @type function
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* @date 4/03/2016
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* @since 5.3.2
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*
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* @param n/a
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* @return n/a
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*/
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function reset_errors() {
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$this->errors = array();
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}
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/*
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* ajax_validate_save_post
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*
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* This function will validate the $_POST data via AJAX
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*
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* @type function
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* @date 27/10/2014
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* @since 5.0.9
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*
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* @param n/a
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* @return n/a
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*/
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function ajax_validate_save_post() {
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// validate
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if( !acf_verify_ajax() ) die();
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// vars
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$json = array(
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'valid' => 1,
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'errors' => 0
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);
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// success
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if( acf_validate_save_post() ) {
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wp_send_json_success($json);
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}
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// update vars
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$json['valid'] = 0;
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$json['errors'] = acf_get_validation_errors();
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// return
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wp_send_json_success($json);
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}
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/*
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* acf_validate_save_post
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*
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* This function will loop over $_POST data and validate
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*
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* @type function
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* @date 7/09/2016
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* @since 5.4.0
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*
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* @param n/a
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* @return n/a
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*/
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function acf_validate_save_post() {
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// bail early if no $_POST
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if( empty($_POST['acf']) ) return;
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// validate
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acf_validate_values( $_POST['acf'], 'acf' );
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}
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}
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// initialize
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acf()->validation = new acf_validation();
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endif; // class_exists check
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/*
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* Public functions
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*
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* alias of acf()->validation->function()
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*
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* @type function
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* @date 6/10/13
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* @since 5.0.0
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*
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* @param n/a
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* @return n/a
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*/
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function acf_add_validation_error( $input, $message = '' ) {
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return acf()->validation->add_error( $input, $message );
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}
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function acf_get_validation_errors() {
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return acf()->validation->get_errors();
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}
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function acf_get_validation_error() {
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return acf()->validation->get_error( $input );
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}
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function acf_reset_validation_errors() {
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return acf()->validation->reset_errors();
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}
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/*
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* acf_validate_save_post
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*
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* This function will validate $_POST data and add errors
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*
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* @type function
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* @date 25/11/2013
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* @since 5.0.0
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*
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* @param $show_errors (boolean) if true, errors will be shown via a wp_die screen
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* @return (boolean)
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*/
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function acf_validate_save_post( $show_errors = false ) {
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// action
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do_action('acf/validate_save_post');
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// vars
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$errors = acf_get_validation_errors();
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// bail ealry if no errors
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if( !$errors ) return true;
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// show errors
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if( $show_errors ) {
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$message = '<h2>' . __('Validation failed', 'acf') . '</h2>';
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$message .= '<ul>';
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foreach( $errors as $error ) {
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$message .= '<li>' . $error['message'] . '</li>';
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}
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$message .= '</ul>';
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// die
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wp_die( $message, __('Validation failed', 'acf') );
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}
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// return
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return false;
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}
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/*
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* acf_validate_values
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*
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* This function will validate an array of field values
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*
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* @type function
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* @date 6/10/13
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* @since 5.0.0
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*
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* @param values (array)
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* @param $input_prefix (string)
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* @return n/a
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*/
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function acf_validate_values( $values, $input_prefix = '' ) {
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// bail early if empty
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if( empty($values) ) return;
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// loop
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foreach( $values as $key => $value ) {
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// vars
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$field = acf_get_field( $key );
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$input = $input_prefix . '[' . $key . ']';
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// bail early if not found
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if( !$field ) continue;
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// validate
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acf_validate_value( $value, $field, $input );
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}
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}
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/*
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* acf_validate_value
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*
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* This function will validate a field's value
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*
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* @type function
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* @date 6/10/13
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* @since 5.0.0
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*
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* @param n/a
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* @return n/a
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*/
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function acf_validate_value( $value, $field, $input ) {
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// vars
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$valid = true;
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$message = sprintf( __( '%s value is required', 'acf' ), $field['label'] );
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// valid
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if( $field['required'] ) {
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// valid is set to false if the value is empty, but allow 0 as a valid value
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if( empty($value) && !is_numeric($value) ) {
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$valid = false;
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}
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}
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/**
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* Filters whether the value is valid.
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*
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* @date 28/09/13
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* @since 5.0.0
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*
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* @param bool $valid The valid status. Return a string to display a custom error message.
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* @param mixed $value The value.
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* @param array $field The field array.
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* @param string $input The input element's name attribute.
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*/
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$valid = apply_filters( "acf/validate_value/type={$field['type']}", $valid, $value, $field, $input );
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$valid = apply_filters( "acf/validate_value/name={$field['_name']}", $valid, $value, $field, $input );
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$valid = apply_filters( "acf/validate_value/key={$field['key']}", $valid, $value, $field, $input );
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$valid = apply_filters( "acf/validate_value", $valid, $value, $field, $input );
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// allow $valid to be a custom error message
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if( !empty($valid) && is_string($valid) ) {
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$message = $valid;
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$valid = false;
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}
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if( !$valid ) {
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acf_add_validation_error( $input, $message );
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return false;
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}
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// return
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return true;
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}
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