saltnpixels/save_upload_field_to_custom_field.php

Hello! A noob question. Where do i put this php file in order for this to work :)?. Or just copy this into theme's functions.php?
Many thanks for your help.

Hi, I'm getting this error

Catchable fatal error: Object of class WP_Error could not be converted to string in C:\wamp64\www\Intranet\wp-content\themes\woffice\functions.php on line 152

Line 152 is the $query assignment

$query = "SELECT ID FROM '{$wpdb->posts}' WHERE guid='$image_src'";

any idea on why I'm getting this error?

Thank you @saltnpixels!

I copied the code to my functions.php file and changed the "postCustomFieldName" to my custom field name "test_image_upload".
but it is not working. when I upload an image to the field, there is no image uploaded to the media library. Any one knows why?

Here are a couple of notes for any folks finding this!

gform_after_create_post doesn't seem to work with a custom post type. I figured out that using gform_advancedpostcreation_post_after_creation does the trick!

Also, it seems to only work with images and only multiple files at a time. I made some tweaks and integrated a file uploader that works with more file types here: https://gist.github.com/RadGH/966f8c756c5e142a5f489e86e751eacb

Here's my end result for getting pdf/images/other files working for single file upload:

add_action('gform_advancedpostcreation_post_after_creation', 'gf_add_to_media_library', 10, 4);

/**
 * Save file upload fields under custom post field to the library
 *
 * @param    $post_id  The post identifier
 * @param    $entry     The entry
 * @param    $form      The form
 */
function gf_add_to_media_library($post_id, $feed, $entry, $form)
{
  foreach ($form['fields'] as $field) {
    //if its a custom field with input type file upload.
    if ($field['type'] == 'post_custom_field' && $field['inputType'] == 'fileupload') {
      $entry_id = $field['id'];
      $file = rgar($entry, $entry_id); //provides the url of the file
      $custom_field = $field['postCustomFieldName']; //custom field key
      //if file field is not empty or not []
      if ($file !== '' && $file !== "[]") {
        $new_url = stripslashes($file);
        $attachment_id = rs_upload_from_url($new_url);

        //saving the image to field or thumbnail
        if (isset($attachment_id)) {
          update_post_meta($post_id, $custom_field, $attachment_id);
        }
      } //end if files not empty
    } //end if custom field of uploadfile
  }
} //end for each form field

I copied the code to my functions.php file and changed the "postCustomFieldName" to my custom field name "test_image_upload". but it is not working. when I upload an image to the field, there is no image uploaded to the media library. Any one knows why?

I did this too, but turns out postCustomFieldName needs to stay unchanged. It's the field key that is connected to your custom field name.