One reason for changing the GUID

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I create product custom posts from an external data suscription, populating some custom fields and displaying product specifications automatically.

As there are a lot of these products, the manual review of each one is made after the custom post have been already published. And it is at that moment when I want my readers to see in the feed the product with the review.

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The only way I have found so far is to modify the post GUID after the review so it appears again in the feed.

On the other hand in the codex we can read Never, ever, change the contents of the GUID column, under any circumstances.
http://codex.wordpress.org/Changing_The_Site_URL#Important_GUID_Note

Is this circumstance a right one for modifying the guid or is there another way of serving these reviews again in the feed?

Another posibility would be to modify the query that control the wordpress main feed but haven’t found the way to do it trying to follow these guidelines
Adding posts of custom type into the main feed 

function myfeed_request($qv) {
    if ( isset( $qv['feed'] ) ) {
    $qv['post_type'] = array('post', 'cars', 'bikes', 'trucks');
    //$qv['seccion'] = 'reviews';
    $qv['tax_query'] = array(
        'relation' => 'OR',
        array(
            'taxonomy' => 'section',
            'field' => 'slug',
            'terms' => array( 'reviews' )
        ),
        array(
            'taxonomy' => 'post_format',
            'field' => 'slug',
            'terms' => array( 'post' )
        )
    )

    }
    return $qv;
}
add_filter('request', 'myfeed_request');

Thanks a lot

Post Views: 2

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2 comments

  1. There’s a filter for that.

    I use:

    function ts_feed_spruce_get_the_guid($content) {
  // double ? is ok as guid is not a url
  // '&' gets esc_url'ed and doesn't work anyway
  $content .= '?d=' . get_the_modified_time('YmdHisT');
  return $content;
}
add_filter('get_the_guid', 'ts_feed_spruce_get_the_guid', 7);

    Drop it in your theme functions.php or a plugin.

  2. So there are two feeds – an external one that you use to create new custom posts, and then one you create with the reviewed products?

    There is a bit of imprecision in the wording – do you actually create an RSS feed for your users or are you referring to the loop that displays the most recent posts?

    If so, you could add a “reviewed” field that accepts a date and use that to determine whether to include the product in the feed that goes to the users. That would mean altering the query that creates the feed to include both new products and products that have been reviewed in the last X day(s)