[23creative]

@strategeek

its been a while and im not 100% sure this will work (in terms of sanitation checks) but if you change

$html[] = '<select class="chzn-select" multiple="multiple" name="bbp_topic_tags[]" id="bbp_topic_tags">';
            foreach($tags as $tag){
                $selected = '';
                if (in_array($tag->name, $selectedTagsArray)) {
                   $selected = 'selected="selected"';
                }
                $html[] = '<option '.$selected.' value="'.$tag->name.'">'.$tag->name.'</option>';
            }
        $html[] = '</select>';

to

foreach($tags as $tag){
    $selected = '';
    if (in_array($tag->name, $selectedTagsArray)) {
      $selected = 'checked="selected"';
    }
   $html[] = '<input '.$selected.' type="checkbox" name="bbp_topic_tags" value="'.$tag->name.'">'.$tag->name;
}

i haven’t tested it but it should get you close

[23creative]

Also in form-reply.php & form-topic.php template files (around line 68ish) you need to insert the following code. i would recommend setting up template overrides for this

<?php if ( bbp_allow_topic_tags() && current_user_can( 'assign_topic_tags' ) ) : ?>

        <?php do_action( 'bbp_theme_before_reply_form_tags' ); ?>
        <p>
            <label for="bbp_topic_tags"><?php _e( 'Tags:', 'bbpress' ); ?></label><br />
            <?php  echo displayTagElements(bbp_get_form_topic_tags(), bbp_get_user_role(get_current_user_id()), 'edit'); ?>
        </p>

        <?php do_action( 'bbp_theme_after_reply_form_tags' ); ?>

<?php endif; ?>

[23creative]

you’re welcome mate. my code actually changed quite a bit form what I posted here. the tag list is pulled from wp-admin > Topics > Topic tags

updated code below

//change the seclected terms to string and return
function restrict_topic_tags( $terms, $topic_id, $reply_id ) {
    if(isset($_POST['bbp_topic_tags'])){
        $bbp_topic_tags = filter_input(INPUT_POST, 'bbp_topic_tags', FILTER_DEFAULT, FILTER_REQUIRE_ARRAY);
        return returnFormattedTags($bbp_topic_tags, $topic_id);
    }else{
        return $terms;
    }   
}
add_filter( 'bbp_new_reply_pre_set_terms', 'restrict_topic_tags' );

//change the seclected terms to string and return
function restrict_new_topic_tags( $topic_data ) {
   //$bbp_topic_tags = $data   = filter_input(INPUT_POST, 'bbp_topic_tags', FILTER_DEFAULT, FILTER_REQUIRE_ARRAY);
   if(isset($_POST['bbp_topic_tags'])){
        $bbp_topic_tags = filter_input(INPUT_POST, 'bbp_topic_tags', FILTER_DEFAULT, FILTER_REQUIRE_ARRAY);
        $topic_data['tax_input'] = array('topic-tag'=>checkTags($bbp_topic_tags)); 
   }
   return $topic_data;
}
add_filter( 'bbp_new_topic_pre_insert', 'restrict_new_topic_tags' );

//change return the correct tag on a form error submission, we might need to go through the spam check here. But lets see how this goes
function loadPostTagArray( $topic_tags ) {
   if( $topic_tags == 'Array'){
        if ( bbp_is_post_request() && isset( $_POST['bbp_topic_tags'] ) ) {
            $bbp_topic_tags = filter_input(INPUT_POST, 'bbp_topic_tags', FILTER_DEFAULT, FILTER_REQUIRE_ARRAY);
            $topic_tags = returnFormattedTags($bbp_topic_tags); 
        }
   } 
   return $topic_tags;
}
add_filter( 'bbp_get_form_topic_tags', 'loadPostTagArray' );

function returnFormattedTags($topicTags){
    foreach ($topicTags as $key => $topicTag){
      if($key > 0) $terms .= ', ';
      $terms .= esc_attr( strip_tags( $topicTag ) );
    }
   return $terms;
}

function checkTags($selectedTags){
    $tags = get_categories( array('hide_empty'=> 0,'taxonomy' => 'topic-tag'));
    $toReturn = array();
    foreach($tags as $tag){
        if (in_array($tag->name, $selectedTags)) {
           $toReturn[] = $tag->name;
        }
    }
    return $toReturn;
}

function displayTagElements($selectedTags, $userRole, $task){
    $html = array();
    $tags = get_categories( array('hide_empty'=> 0,'taxonomy' => 'topic-tag'));
    $selectedTagsArray = explode(', ', $selectedTags);
    if($userRole != 'bbp_participant' || $task != 'edit'){    
        $html[] = '<select class="chzn-select" multiple="multiple" name="bbp_topic_tags[]" id="bbp_topic_tags">';
            foreach($tags as $tag){
                $selected = '';
                if (in_array($tag->name, $selectedTagsArray)) {
                   $selected = 'selected="selected"';
                }
                $html[] = '<option '.$selected.' value="'.$tag->name.'">'.$tag->name.'</option>';
            }
        $html[] = '</select>';
    }else{
        $html[] = $selectedTags;
    }
    return implode('',$html);
}

[23creative]

Hey Guys,

i have just completed this functionlaity for my site. i wanted to use a jquery chosen as opposed to a text input so in my themes functions.php file i added the following:

function restrict_topic_tags( $terms, $topic_id, $reply_id ) {
   $terms = bbp_get_topic_tag_names( $topic_id );
   foreach ($_POST['bbp_topic_tags'] as $topicTags){
      $terms .= ', '.esc_attr( strip_tags( $topicTags ) );
   }
   return $terms;
}
add_filter( 'bbp_new_reply_pre_set_terms', 'restrict_topic_tags' );

function displayTagElements($selectedTags){
    $html = array();
    $tags = get_categories( array('hide_empty'=> 0,'taxonomy' => 'topic-tag'));
    $selectedTags = explode(', ', $selectedTags);
    //die(var_dump($selectedTags));
    $html[] = '<select class="chzn-select" multiple="multiple" name="bbp_topic_tags[]" id="bbp_topic_tags">';
        foreach($tags as $tag){
            $selected = '';
            if (in_array($tag->name, $selectedTags)) {
               $selected = 'selected="selected"';
            }
            $html[] = '<option '.$selected.' value="'.$tag->slug.'">'.$tag->name.'</option>';
        }
    $html[] = '</select>';
    return implode('',$html);
}

then in my bbpress custom theme files (form-reply.php, any others that had the reply form. I’m sure there is more than one i haven’t fully checked yet) i added the following code at line 75

<p>
    <label for="bbp_topic_tags"><?php _e( 'Tags:', 'bbpress' ); ?></label><br />
    <?php echo displayTagElements(bbp_get_form_topic_tags()); ?>
</p>