Reply To: Custom Validation

• tararotten

• November 20, 2015 at 4:43 am

Im using acf/validate_valuepassing wp_check_filetype to make sure images uploaded via a front end form are image types, the code below is working perfectly on the front end, however when I go to publish the post created by the form in the backend (as its automatically saved as a draft) I get the error message for when it is not a accpeted file type , when it is.

My question is how do you use acf/validate_value to check that the file uploaded is an image type, I am using the Basic file uploader so guests can upload images

//FORM IMAGE VALIDATION
add_filter('acf/validate_value/name=image_upload', 'my_acf_validate_value', 10, 4);
function my_acf_validate_value( $valid, $value, $field, $input ){
	// bail early if value is already invalid
	if( !$valid ) {
		return $valid;	
	}
	$filetype = wp_check_filetype($value);
	$filetypeext = $filetype['type'];
	if( $filetypeext != 'image/jpeg' && $filetypeext != 'image/gif' && $filetypeext != 'image/png' && $filetypeext != 'image/bmp'&& $filetypeext != 'image/tiff' && $filetypeext != 'image/jpg') {
		$valid = "Please upload a valid image file!";
	}
	// return
	return $valid;
}