Advanced Custom Fields & Gravity Forms Image Upload WordPress

Jurre Hanema answers:

This one is a little bit tricky because you are required to enter the ID of your Gravity Forms upload field and the name of your ACF custom field in the code. Then you can try this code I just hacked together:


add_action('gform_post_submission', 'wpq_process_file', 10, 2);

function wpq_process_file($entry, $form)
{
global $wpdb;

// Modify these two variables as needed

$gf_upload_id = 4;
$acf_field_name = 'my_image';

// Bail if we are not creating a post

if(!isset($entry['post_id']))
return;

// Create attachment from image

$filename = $entry[$gf_upload_id];

$wp_filetype = wp_check_filetype(basename($filename), null);

$attachment = array(
'post_mime_type' => $wp_filetype['type'],
'post_title' => preg_replace('/\.[^.]+$/', '', basename($filename)),
'post_content' => '',
'post_status' => 'inherit'
);

$attach_id = wp_insert_attachment($attachment, $filename, $entry['post_id']);

require_once(ABSPATH . 'wp-admin/includes/image.php');

$attach_data = wp_generate_attachment_metadata($attach_id, $filename);

wp_update_attachment_metadata($attach_id, $attach_data);

// Save attachment ID to ACF

if(!class_exists('Acf'))
return;

$query = $wpdb->prepare("SELECT id FROM {$wpdb->prefix}acf_fields WHERE name = %s", $acf_field_name);
$acf_field = $wpdb->get_row($query);

if($acf_field)
{
update_post_meta((int)$entry['post_id'], $acf_field_name, $attach_id);

$query = $wpdb->prepare("SELECT meta_id FROM {$wpdb->prefix}postmeta ORDER BY meta_id DESC LIMIT 1");
$meta_id = $wpdb->get_var($query);

$query = $wpdb->prepare("INSERT INTO {$wpdb->prefix}acf_values (field_id, value, post_id) VALUES (%d, %d, %d)", $acf_field->id, $meta_id, $entry['post_id']);
$wpdb->query($query);
}
}


You have got to modify the variables $gf_upload_id and $acf_field_name so that the one contains the ID of the GF upload field and the other contains the name of the ACF custom field.

You can easily find the ID of the GF upload field by going to the form admin and selecting the field with Firebug or any similar tool. The HTML will read something like this:


<li id="field_4" class="selectable gfield">


...in which case the ID you need is of course 4.

Good luck!

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