<?php
if( ! defined( 'ABSPATH' ) ) exit; // Exit if accessed directly
if( ! class_exists('ACF_Form_Post') ) :
class ACF_Form_Post {
/** @var string The first field groups style CSS. */
var $style = '';
/**
* __construct
*
* Sets up the class functionality.
*
* @date 5/03/2014
* @since 5.0.0
*
* @param void
* @return void
*/
function __construct() {
// initialize on post edit screens
add_action('load-post.php', array($this, 'initialize'));
add_action('load-post-new.php', array($this, 'initialize'));
// save
add_filter('wp_insert_post_empty_content', array($this, 'wp_insert_post_empty_content'), 10, 2);
add_action('save_post', array($this, 'save_post'), 10, 2);
}
/**
* initialize
*
* Sets up Form functionality.
*
* @date 19/9/18
* @since 5.7.6
*
* @param void
* @return void
*/
function initialize() {
// globals
global $typenow;
// restrict specific post types
$restricted = array('acf-field-group', 'attachment');
if( in_array($typenow, $restricted) ) {
return;
}
// enqueue scripts
acf_enqueue_scripts(array(
'uploader' => true,
));
// actions
add_action('add_meta_boxes', array($this, 'add_meta_boxes'), 10, 2);
}
/**
* add_meta_boxes
*
* Adds ACF metaboxes for the given $post_type and $post.
*
* @date 19/9/18
* @since 5.7.6
*
* @param string $post_type The post type.
* @param WP_Post $post The post being edited.
* @return void
*/
function add_meta_boxes( $post_type, $post ) {
// Storage for localized postboxes.
$postboxes = array();
// Get field groups for this screen.
$field_groups = acf_get_field_groups(array(
'post_id' => $post->ID,
'post_type' => $post_type
));
// Loop over field groups.
if( $field_groups ) {
foreach( $field_groups as $field_group ) {
// vars
$id = "acf-{$field_group['key']}"; // acf-group_123
$title = $field_group['title']; // Group 1
$context = $field_group['position']; // normal, side, acf_after_title
$priority = 'high'; // high, core, default, low
// Reduce priority for sidebar metaboxes for best position.
if( $context == 'side' ) {
$priority = 'core';
}
/**
* Filters the metabox priority.
*
* @date 23/06/12
* @since 3.1.8
*
* @param string $priority The metabox priority (high, core, default, low).
* @param array $field_group The field group array.
*/
$priority = apply_filters('acf/input/meta_box_priority', $priority, $field_group);
// Localize data
$postboxes[] = array(
'id' => $id,
'key' => $field_group['key'],
'style' => $field_group['style'],
'label' => $field_group['label_placement'],
'edit' => acf_get_field_group_edit_link( $field_group['ID'] )
);
// Add the meta box.
add_meta_box( $id, $title, array($this, 'render_meta_box'), $post_type, $context, $priority, array('field_group' => $field_group) );
}
// Set style from first field group.
$this->style = acf_get_field_group_style( $field_groups[0] );
// Localize postboxes.
acf_localize_data(array(
'postboxes' => $postboxes
));
}
// remove postcustom metabox (removes expensive SQL query)
if( acf_get_setting('remove_wp_meta_box') ) {
remove_meta_box( 'postcustom', false, 'normal' );
}
// Add hidden input fields.
add_action('edit_form_after_title', array($this, 'edit_form_after_title'));
/**
* Fires after metaboxes have been added.
*
* @date 13/12/18
* @since 5.8.0
*
* @param string $post_type The post type.
* @param WP_Post $post The post being edited.
* @param array $field_groups The field groups added.
*/
do_action('acf/add_meta_boxes', $post_type, $post, $field_groups);
}
/**
* edit_form_after_title
*
* Called after the title adn before the content editor.
*
* @date 19/9/18
* @since 5.7.6
*
* @param void
* @return void
*/
function edit_form_after_title() {
// globals
global $post, $wp_meta_boxes;
// render post data
acf_form_data(array(
'screen' => 'post',
'post_id' => $post->ID
));
// render 'acf_after_title' metaboxes
do_meta_boxes( get_current_screen(), 'acf_after_title', $post );
// render dynamic field group style
echo '<style type="text/css" id="acf-style">' . $this->style . '</style>';
}
/**
* render_meta_box
*
* Renders the ACF metabox HTML.
*
* @date 19/9/18
* @since 5.7.6
*
* @param WP_Post $post The post being edited.
* @param array metabox The add_meta_box() args.
* @return void
*/
function render_meta_box( $post, $metabox ) {
// vars
$id = $metabox['id'];
$field_group = $metabox['args']['field_group'];
// Render fields.
$fields = acf_get_fields( $field_group );
acf_render_fields( $fields, $post->ID, 'div', $field_group['instruction_placement'] );
}
/**
* wp_insert_post_empty_content
*
* Allows WP to insert a new post without title or post_content if ACF data exists.
*
* @date 16/07/2014
* @since 5.0.1
*
* @param bool $maybe_empty Whether the post should be considered "empty".
* @param array $postarr Array of post data.
* @return bool
*/
function wp_insert_post_empty_content( $maybe_empty, $postarr ) {
// return false and allow insert if '_acf_changed' exists
if( $maybe_empty && acf_maybe_get_POST('_acf_changed') ) {
return false;
}
// return
return $maybe_empty;
}
/*
* allow_save_post
*
* Checks if the $post is allowed to be saved.
* Used to avoid triggering "acf/save_post" on dynamically created posts during save.
*
* @type function
* @date 26/06/2016
* @since 5.3.8
*
* @param WP_Post $post The post to check.
* @return bool
*/
function allow_save_post( $post ) {
// vars
$allow = true;
// restrict post types
$restrict = array( 'auto-draft', 'revision', 'acf-field', 'acf-field-group' );
if( in_array($post->post_type, $restrict) ) {
$allow = false;
}
// disallow if the $_POST ID value does not match the $post->ID
$form_post_id = (int) acf_maybe_get_POST('post_ID');
if( $form_post_id && $form_post_id !== $post->ID ) {
$allow = false;
}
// revision (preview)
if( $post->post_type == 'revision' ) {
// allow if doing preview and this $post is a child of the $_POST ID
if( acf_maybe_get_POST('wp-preview') == 'dopreview' && $form_post_id === $post->post_parent) {
$allow = true;
}
}
// return
return $allow;
}
/*
* save_post
*
* Triggers during the 'save_post' action to save the $_POST data.
*
* @type function
* @date 23/06/12
* @since 1.0.0
*
* @param int $post_id The post ID
* @param WP_POST $post the post object.
* @return int
*/
function save_post( $post_id, $post ) {
// bail ealry if no allowed to save this post type
if( !$this->allow_save_post($post) ) {
return $post_id;
}
// verify nonce
if( !acf_verify_nonce('post') ) {
return $post_id;
}
// validate for published post (allow draft to save without validation)
if( $post->post_status == 'publish' ) {
// bail early if validation fails
if( !acf_validate_save_post() ) {
return;
}
}
// save
acf_save_post( $post_id );
// save revision
if( post_type_supports($post->post_type, 'revisions') ) {
acf_save_post_revision( $post_id );
}
// return
return $post_id;
}
}
acf_new_instance('ACF_Form_Post');
endif;
?>