Get checked checkboxes

Hello,

I'm using last version of Gravity Forms (1.4.3.1) and it was very easy to set up a complex and lengthy form. The purpose of the form is to create a custom post type. This part is working thanks to hints I found on this forum. I'm trying now to set up checkboxes that will populate custom taxonomies when values are checked.

More details here:
- List A of checkboxes (id=24) for custom taxonomy 'access'
- List B of checkboxes (id=25) for custom taxonomy 'services'

Here is my PHP code:

add_filter("gform_post_submission", "insert_custom_taxonomies",10,2);
function insert_custom_taxonomies($entry, $form){

	if($form["id"] !=1)
        return;

    $post_id = $entry["post_id"];

    $choices_services = "";
    $choices_access = "";

    foreach($form["fields"] as &$field){
        if($field["id"] == 25){
        	foreach($field["choices"] as $choice){
	            $field_value = !empty($choice["value"]) || $field["enableChoiceValue"] ? $choice["value"] : $choice["text"];
    	        $choices_services.= $field_value.',';
    		}
        }

        if($field["id"] == 24){
        	foreach($field["choices"] as $choice){
	            $field_value = !empty($choice["value"]) || $field["enableChoiceValue"] ? $choice["value"] : $choice["text"];
    	        $choices_access.= $field_value.',';
    		}
        }
    }

    wp_set_object_terms($post_id, explode(",", $choices_service), "service");
    wp_set_object_terms($post_id, explode(",", $choices_access), "access");    

}

This does not work as my vars 'choices_access' and 'choices_services' are empty before calling 'wp_set_object_terms'.

I've tried var_dump($choice) for debugging purpose in "foreach" loop, but even if I check a checkbox in the form, "IsSelected" property is set to "false" after submission.

- Am I using a wrong hook to populate my taxonomies? I've tried 'gform_pre_submission' hook, without any success.
- Is there a way to know if a checkbox was checked before hitting submission button?

Anyone can help?
Thanks!

Vincent

I am working on a very similar issue, but I am attempting to place checkbox values into custom fields with each value under the same key. It seems like I figured out how to do it but it is not working.
Here is my code

<?php
//Add checkbox info from gravity forms to the custom fields of each post created by each entry
add_action("gform_post_submission", "set_post_custom_field", 10, 2);
function set_post_custom_field($entry, $form){

$postid = $entry["$post_id"]; //get post id associated with entry
$field_ids = array_keys($entry); //get all field ids of entry
foreach($field_ids as &$field_id){
	if(substr($field_id,0,2) == 89){    //define $parts as all values from field ids beginning with 89
$parts = $entry[$field_id];}
}
	//updating custom fields with each value from above into same key
	foreach($parts as $part){
		if(!empty($part)){
		update_post_meta($postid, 'part_of_plant_used', $part);
		}
		}
} ?>

This is pasted into my functions.php.
I can't see that it would matter, but the post is a custom post type.
Here is the form page: http://herbalrepertory.throughwoods.com/post-a-new-herb/
Any help would be greatly appreciated.

Here is a more universal solution that should fulfill your requirements as well as anyone else who is trying to use a checkbox field as a post custom field:

1. Paste this code into your theme's functions.php:
   http://pastie.org/1813050
2. Now add a CSS class to the field in the GF admin using the following format:
   

   custom_field_{custom_field_name}

   So to add the selected checkbox inputs as values for a custom field titled "sports" you would add the CSS class "custom_field_sports".

That's it. Let me know how it works.