Home Forums ACF PRO Multisite Main Site Options Page Filter Child Site


Multisite Main Site Options Page Filter Child Site

  • I have a multisite and am trying to accomplish the following.

    On the main site I have a options page with 3 fields:

    promotion_1 Wysiwyg Editor (the html of the promotion)
    promotion_1_storelist Multiple Select (a list of all sites in the multisite)
    promotion_1_expiration Date Picker (standard date picker)

    I want to be able to add the promotion (promotion_1) to the selected sites chosen in the Multiple Select List (promotion_1_storelist) and have the promotion expire on the promotion_1_expiration date. If the site is not selected in the Multiple Select List (promotion_1_storelist) the promotion is not shown.
    On every child site I add the shortcode “center_promotions1” to display the promotion (using shortcode as not every site gets the promotion so abstracted it out of the template).

    I have the expiration working fine and can pull from the main site and display on a child site. I have 2 issues:
    1) How do I filter the Multiple Select List (promotion_1_storelist) and show the promotion only if the child site is selected?
    2) Is there a way to pull in a list of the sites in the multisite and list them in the Multiple Select List (promotion_1_storelist field_5e0a476fc3745)?

    Below is my code so far. It shows the promotion on every site no matter what sites are selected:

    // Promotions display on a Location page
    function get_promotions1(){
    $main_blog = 1;
    $today1 = date('Ymd');
    $currentsite1 = get_current_blog_id();
    switch_to_blog( $main_blog );
    $centerpromotions1 = get_field('promotion_1', 'option');
    $storelist1 = get_field('promotion_1_storelist', 'option');
    $expiredate1 = get_field('promotion_1_expiration', 'option'); 
    $args = array(
    	'meta_query' => array(
    		'key' => $storelist1, // name of custom field
    		'value' => '"' . $currentsite1 . '"', // matches exactly "123", not just 123. This prevents a match for "1234"
    		'compare' => 'LIKE'
    $sites = get_site($args);
    if($expiredate1 > $today1 && $sites && !is_wp_error($sites)):
    echo '<h4>Promotions:</h4><div class="center-promotions-list">' .  $centerpromotions1  . '</div><p></p>';
    return ob_get_clean();
    add_shortcode('center_promotions1', 'get_promotions1');

    Thank you

    // load values into store list
    // assumes it is only loaded on blog_id == 1
    // assumes that the field is a select field that allows multiple choices
    add_filter('acf/prepare_field/key=field_5e0a476fc3745', 'load_site_list');
    function load_site_list($field) {
      $sites = get_sites();
      $choices = array();
      if ($sites) {
        foreach ($sites as $site) {
          // not the main site
          if ($site->blog_id == 1) {
          $choices[$site->blog_id] = get_bloginfo('name');
        } // end foreach site
      } // end if sites
      $field['choices'] = $choices;
      return $field;
    } // end function
    // see if current blog is selected
    switch_to_blog( $main_blog );
    $storelist1 = get_field('promotion_1_storelist', 'option');
    if (in_array(get_current_blog_id(), $storelist1)) {
      // current site is selected
  • Thank you. I added the code and it works except I can not do a multi-select. For example if a site is like this:
    Main Site (does not display in list)
    Site 1
    Site 2
    Site 3

    Your code displays the list of sites (which is awesome) but I can only choose 1 site. Is there a way to make the list a multi-select so I can show a promotion on “Site 1” AND “Site 3” but NOT on “Site 2”?

    Also how can I add “Allow Null” as an option.

    Again thank you for the above code. Your support here is awesome.

  • These are choices when creating the select field.

  • I am not following you. This is my select setting:

    The actual form does not allow me to multi-select multiple sites to show the promotion on.

  • I was being dumb and not holding the cmd key when selecting multiple sites 🙂
    Beyond rookie mistake. Thanks for the help and it works great!!

  • I moved the code to production with 161 sites. Only the first 99 sites are listed. Any idea on how to get the other 62 sites to list?

    Thank you

  • You need to set the number argument for get sites, unfortunately, it does not seem to be a way to set it to all by using -1 like in WP_Query(), instead it seems that you need to set it to a number that is higher than the number of the sites you have.

    The reason it’s returning 99 is that the max is 100 and we’re eliminating site 1 (the main site)

    $sites = get_sites(array('number' => 500));
  • Thank you very much…this works awesomely.

Viewing 9 posts - 1 through 9 (of 9 total)

You must be logged in to reply to this topic.

We use cookies to offer you a better browsing experience, analyze site traffic and personalize content. Read about how we use cookies and how you can control them in our Cookie Policy. If you continue to use this site, you consent to our use of cookies.