Tags in Community Events

// This goes to tag.php
<?php

if ( !defined('ABSPATH') ) { die('-1'); }

$tagi = '';

if (isset( $_POST['tags_input'] )) {
    $tagi = esc_attr(strip_tags($_POST['tags_input']));
}
else {
    $a = array();
    $posttags = get_the_tags();
    if ($posttags) {
        foreach($posttags as $tag) {
            $a[]  = $tag->name;
        }
    }
    $tagi = implode(',',$a);
}


/* html form */

?>

<div class="events-community-post-content bubble" id="event_tags">

    <label for="post_tags">Tags</label>

    <input placeholder="Enter tags" type="text" size="16" name="tags_input" id="post_tags" value="<?php echo $tagi ?>" />

    <small class="note">Your comment</small>

</div>

//This goes to edit-event.php
<?php tribe_get_template_part('community/modules/tag'); ?>