This thread is resolved. Here is a description of the problem and solution.
Problem: I would like to use the Forms API to validate each image that is uploaded in a single or repeating custom field. It doesn't seem to be working, in the logs I see a PHP notice about trying to get property of a non-object.
Solution: Make sure the User has permission to publish Media if you are using Toolset Access Control. Make sure the Form's markup structure doesn't include any extra closing div tags. Use the following custom code to validate a repeating image field:
add_filter('cred_form_ajax_upload_validate','rep_img_size_validation',10,2);
function rep_img_size_validation($error_fields, $form_data)
{
error_log(' validation script is invoked ');
$forms = array( 29, 49 );
$size = 1024000;
$field_slug = 'your-repeating-image-slug';
$error_msg = 'Maximum size is 1MB, please try again.';
//field data are field values and errors
list($fields,$errors)=$error_fields;
//validate if specific form
if (in_array( $form_data['id'], $forms ) && isset($fields['wpcf-' . $field_slug]['field_data']['size']))
{
//check if this field instance img is bigger than $size (bytes)
$instance_size = array_pop($fields['wpcf-' . $field_slug]['field_data']['size']);
if ( $instance_size > $size )
{
//display error message for this field instance
$errors['wpcf-' . $field_slug] = $error_msg;
}
}
//return result
return array($fields,$errors);
}
To validate a single field, copy the code above and make the following adjustments:
- Change the function names to prevent a PHP error
- Change the field slug
- Remove array_pop from the instance_size definition like this:
// for repeating images // $instance_size = array_pop($fields['wpcf-' . $field_slug]['field_data']['size']); // for single images $instance_size = $fields['wpcf-' . $field_slug]['field_data']['size'];
Relevant Documentation:
https://toolset.com/documentation/programmer-reference/cred-api/#cred_form_ajax_upload_validate
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This topic contains 18 replies, has 2 voices.
Last updated by FelipeP5703 5 years ago.
Assisted by: Christian Cox.
The User you are testing with is an Author. The Author role does not have permission to publish Media, so you cannot upload images in Forms. You must modify the Access Control permissions for the Media post type if you want to allow Authors to upload images.
