<?php
// Exit if accessed directly.
if (!defined('ABSPATH')) {
    exit;
}
/*
  |----------------------------------------------------------
  | Posts
  |----------------------------------------------------------
 */
add_shortcode('popularis-posts', 'popularis_extra_posts_carousel_shortcode');

function popularis_extra_posts_carousel_shortcode($atts, $content = null) {

    STATIC $i = 1;
    extract(shortcode_atts(array(
        'text_color' => '', // Theme default
        'columns' => '3', // 3* / 2 / 3 / 4 / 5
        'limit' => '6', // *6
        'category' => '', // Category ID
    ), $atts, 'popularis-posts'));

    $category = explode(',', $category);
    if (empty($category)) {
        return;
    }
    $columns = 12 / $columns;
    // setup query
    $paged = get_query_var('paged') ? get_query_var('paged') : 1;
    $post_args = array(
        'posts_per_page' => $limit,
        'cat' => $category,
        'ignore_sticky_posts' => 1,
        'paged' => $paged,
    );
    // query database
    $post = new WP_Query($post_args);
    ob_start();
    ?>
    <div id="popularis-posts-shortcode-<?php echo absint($i); ?>" class="popularis-posts-shortcode" >
        <?php if ($post->have_posts()) : ?>
            <div class="row" >
                <?php while ($post->have_posts()) : ?>
                    <?php $post->the_post(); ?>

                    <article id="post-<?php the_ID(); ?>" <?php post_class('col-md-' . absint($columns)); ?>>
                        <div class="news-item text-center">
                            <?php the_post_thumbnail(); ?>
                            <div class="news-text-wrap">
                                <?php the_title('<h2 class="entry-title"><a href="' . esc_url(get_permalink()) . '" rel="bookmark" style="color: ' . esc_attr($text_color) . '">', '</a></h2>'); ?>
                                <div class="f-line"></div>
                                <div class="post-excerpt" style="color: <?php echo esc_attr($text_color) ?>">
                                    <?php the_excerpt(); ?>
                                </div><!-- .post-excerpt -->
                            </div><!-- .news-text-wrap -->

                        </div><!-- .news-item -->
                    </article>

                <?php endwhile; ?>
            </div><!-- .row -->
        <?php endif; ?>
    </div>				
    <?php
    wp_reset_postdata();
    $i++;

    return ob_get_clean();
}