Code to specify that a tag entered in a form should go to a custom taxonomy

P.S. I've tried the code Alex suggested in another forum post (http://www.gravityhelp.com/forums/topic/custom-taxonomies) but couldn't get it working. It seems to be pulling the tags from the default WP tags field and not posting any tags to any taxonomy. The code I tried for this was as follows:

/*-----------------------------------------------------------------------------------*/
/*	Add Support for Posting of Tags in Matters Form to multiple custom taxonomies
/*-----------------------------------------------------------------------------------*/

add_filter("gform_post_data", "empty_tags", 10, 2);
function empty_tags($post_data, $form){
    //replace 4 with your actual form id
    if($form["id"] !=9)
        return;

    $post_data["tags_input"] = null;
    return $post_data;
}

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

    //REPLACE 4 with your actual form id
    if($form["id"] !=9)
        return;

    //getting post
    $post_id = $entry["post_id"];

    //REPLACE 2 with your actual field id and "post_tag" with your custom taxonomy
    wp_set_object_terms($post_id, explode(",", $entry[9]), "projects");
/*-----------------------------------------------------------------------------------*/
/*    wp_set_object_terms($post_id, explode(",", $entry[3]), "activities");

/*-----------------------------------------------------------------------------------*/
}

In this example, my form ID is 9 and the tags field that I'm trying to use to populate a different taxonomy is also 9.

Hi and many thanks David. Much appreciated.

Am I right in thinking though that this code doesn't allow one to differentiate between different forms? In my case, I have a site with 5 forms on it and I need to take this approach across the different forms for different audiences.

Thanks again
Richard

Hi Richard,

You can wrap this switch in another switch for the form ID with a case for each form.

Psuedo Code

[php]
switch($form_id) {
case 1:
    switch($field_id) {
    case 1:
        // code
        break;
    case 2:
        // code
        break;
    }
case 2:
    switch($field_id) {
    case 3:
        // code
        break;
    case 4:
        // code
        break;
    }
}

P.S. If that's right, would the complete code be:

<?php

add_action('gform_post_submission', 'hyp_tag_to_taxonomy', 10, 2);
function hyp_tag_to_taxonomy($entry, $form){

    $post_id = $entry['post_id'];
    $taxonomy = '';

switch($form_id) {
case 1: // update to form ID

    switch($field_id) {
    case 5: // update to a field ID which contains a list of tags
            $taxonomy = 'your-tax-name';
            $tag_string = $entry[5];
            break;
    case 6: // update to a field ID which contains a list of tags
            $taxonomy = 'different-tax-name';
            $tag_string = $entry[6];
            break;
    }

case 2: // update to form ID

    switch($field_id) {
    case 7: // update to a field ID which contains a list of tags
            $taxonomy = 'your-tax-name';
            $tag_string = $entry[7];
            break;
    case 8: // update to a field ID which contains a list of tags
            $taxonomy = 'different-tax-name';
            $tag_string = $entry[8];
            break;
    }

$tags = array_map('trim', explode(',', $tag_string));

        if(!$post_id || empty($tags))
            return;

        foreach($tags as $tag)
            wp_set_object_terms($id, $tag, $taxonomy, true);

}

Putting the two chunks of code together proves to be more challenging than 1+1 (for me at least). :)

Hi GF team - No problem if you're too busy, but it'd be great for confirmation please as to whether my code attempt above is good or bad (I suspect the latter) before the weekend so I can continue work on the site over the weekend.

As always, thanks for the super support.
Richard

Thanks Carl. No problem. Sorry to hear you're crook David.

So here's another update. There was an error of some sort in the code above. The code below ALMOST works but not 100% as intended. It DOES now assign tags to designated taxonomies but it ALSO assigns them the WP default tag taxonomy.

If I could get the code to assign tags in the specified fields ONLY to the designated taxonomies, it would be working perfectly. (The WP default tag taxonomy would still need to work for other tag fields not referred to in the code.)

add_action('gform_post_submission', 'hyp_tag_to_taxonomy', 10, 2);
function hyp_tag_to_taxonomy($entry, $form){

    $post_id = $entry['post_id'];
    $taxonomy = '';

    foreach($form['fields'] as $field) {
        switch($form['id']) {
        case 1: // enter your form ID here
           switch($field['id']) {
           case 12: // update to a field ID which contains a list of tags
              $taxonomy = 'your-tax-name';
              $tag_string = $entry[12];
              break;
           case 14: // update to a field ID which contains a list of tags
              $taxonomy = 'different-tax-name';
              $tag_string = $entry[14];
              break;
           }
           break;
        case 2: // enter your form ID here
           switch($field['id']) {
           case 13: // update to a field ID which contains a list of tags
              $taxonomy = 'your-tax-name';
              $tag_string = $entry[12];
              break;
           case 15: // update to a field ID which contains a list of tags
              $taxonomy = 'different-tax-name';
              $tag_string = $entry[14];
              break;
           }
           break;
        }

        $tags = array_map('trim', explode(',', $tag_string));

        if(!$post_id || empty($tags))
            return;

        foreach($tags as $tag)
            wp_set_object_terms($post_id, $tag, $taxonomy, true);

    }

}