Wordpress: Simple Gallery and Auto Feature Function

Wordpress: Simple Gallery and Auto Feature Function

	/* ========================================================================================================================
	
	Gallery and Auto Featured Image
	
	======================================================================================================================== */


    function fix_my_gallery_wpse43558($output, $attr) {
        global $post;

        static $instance = 0;
        $instance++;


        /**
         *  will remove this since we don't want an endless loop going on here
         */
        // Allow plugins/themes to override the default gallery template.
        //$output = apply_filters('post_gallery', '', $attr);

        // We're trusting author input, so let's at least make sure it looks like a valid orderby statement
        if ( isset( $attr['orderby'] ) ) {
            $attr['orderby'] = sanitize_sql_orderby( $attr['orderby'] );
            if ( !$attr['orderby'] )
                unset( $attr['orderby'] );
        }

        extract(shortcode_atts(array(
            'order'      => 'ASC',
            'orderby'    => 'menu_order ID',
            'id'         => $post->ID,
            'itemtag'    => 'dl',
            'icontag'    => 'dt',
            'captiontag' => 'dd',
            'columns'    => 1,
            'size'       => 'large',
            'include'    => '',
            'exclude'    => ''
        ), $attr));

        $id = intval($id);
        if ( 'RAND' == $order )
            $orderby = 'none';

        if ( !empty($include) ) {
            $include = preg_replace( '/[^0-9,]+/', '', $include );
            $_attachments = get_posts( array('include' => $include, 'post_status' => 'inherit', 'post_type' => 'attachment', 'post_mime_type' => 'image', 'order' => $order, 'orderby' => $orderby) );

            $attachments = array();
            foreach ( $_attachments as $key => $val ) {
                $attachments[$val->ID] = $_attachments[$key];
            }
        } elseif ( !empty($exclude) ) {
            $exclude = preg_replace( '/[^0-9,]+/', '', $exclude );
            $attachments = get_children( array('post_parent' => $id, 'exclude' => $exclude, 'post_status' => 'inherit', 'post_type' => 'attachment', 'post_mime_type' => 'image', 'order' => $order, 'orderby' => $orderby) );
        } else {
            $attachments = get_children( array('post_parent' => $id, 'post_status' => 'inherit', 'post_type' => 'attachment', 'post_mime_type' => 'image', 'order' => $order, 'orderby' => $orderby) );
        }

        if ( empty($attachments) )
            return '';

        if ( is_feed() ) {
            $output = "\n";
            foreach ( $attachments as $att_id => $attachment )
                $output .= wp_get_attachment_link($att_id, $size, false) . "\n";
            return $output;
        }

        $itemtag = tag_escape($itemtag);
        $captiontag = tag_escape($captiontag);
        $columns = intval($columns);
        $itemwidth = $columns > 0 ? floor(100/$columns) : 100;
        $float = is_rtl() ? 'right' : 'left';

        $selector = "gallery-{$instance}";

        $gallery_style = $gallery_div = '';
        if ( apply_filters( 'use_default_gallery_style', true ) )
            /**
             * this is the css you want to remove
             *  #1 in question
             */
            /*
            $gallery_style = "
            <style type='text/css'>
                #{$selector} {
                    margin: auto;
                }
                #{$selector} .gallery-item {
                    float: {$float};
                    margin-top: 10px;
                    text-align: center;
                    width: {$itemwidth}%;
                }
                #{$selector} img {
                    border: 2px solid #cfcfcf;
                }
                #{$selector} .gallery-caption {
                    margin-left: 0;
                }
            </style>
            <!-- see gallery_shortcode() in wp-includes/media.php -->";
            */
        $size_class = sanitize_html_class( $size );
        $gallery_div = "<div id='$selector' class='gallery galleryid-{$id} gallery-columns-{$columns} gallery-size-{$size_class}'>";
        $output = apply_filters( 'gallery_style', $gallery_style . "\n\t\t" . $gallery_div );

        $i = 0;
        foreach ( $attachments as $id => $attachment ) {
            $link = isset($attr['link']) && 'file' == $attr['link'] ? wp_get_attachment_link($id, $size, false, false) : wp_get_attachment_link($id, $size, false, false);

            $output .= "<{$itemtag} class='gallery-item'>";
            $output .= "
                <{$icontag} class='gallery-icon'>
                    $link
                </{$icontag}>";
            /*
             * This is the caption part so i'll comment that out
             * #2 in question
             */
            /*
            if ( $captiontag && trim($attachment->post_excerpt) ) {
                $output .= "
                    <{$captiontag} class='wp-caption-text gallery-caption'>
                    " . wptexturize($attachment->post_excerpt) . "
                    </{$captiontag}>";
            }*/
            $output .= "</{$itemtag}>";
            if ( $columns > 0 && ++$i % $columns == 0 )
                $output .= '<br style="clear: both" />';
        }

        /**
         * this is the extra br you want to remove so we change it to jus closing div tag
         * #3 in question
         */
        /*$output .= "
                <br style='clear: both;' />
            </div>\n";
         */

        $output .= "</div>\n";
        return $output;
    }
    add_filter("post_gallery", "fix_my_gallery_wpse43558",10,2);

    function auto_featured_image() {
        global $post;

        if (!has_post_thumbnail($post->ID)) {
            $attached_image = get_children( "post_parent=$post->ID&post_type=attachment&post_mime_type=image&numberposts=1" );
            
    	  if ($attached_image) {
                  foreach ($attached_image as $attachment_id => $attachment) {
                       set_post_thumbnail($post->ID, $attachment_id);
                  }
             }
        }
    }
    // Use it temporary to generate all featured images
    add_action('the_post', 'auto_featured_image');
    // Used for new posts
    add_action('save_post', 'auto_featured_image');
    add_action('draft_to_publish', 'auto_featured_image');
    add_action('new_to_publish', 'auto_featured_image');
    add_action('pending_to_publish', 'auto_featured_image');
    add_action('future_to_publish', 'auto_featured_image');