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1. eable
   Member
   Posted 4 months ago #

   In my category.php, I've been using a conditional statement to select specific sidebars for specific categories or groups of categories, like this:
   

   <?php if (is_category( array( 'cheddar', 'swiss'))) {
   get_sidebar('cheese');
   } else
   if (is_category( array( 'apples', 'cherries', ))) {
   get_sidebar('fruit');
   } else {
   get_sidebar();
   } ?>

   Is there a way to call a sidebar to be used with a category and all of that category's children?

2. keesiemeijer
   moderator
   Posted 4 months ago #

   Try it with:
   

   $current_cat = get_query_var('cat');
   if(is_category(3) || cat_is_ancestor_of( 3, $current_cat )) {
   // get sidebar for category 3 and all of its children
   }

3. eable
   Member
   Posted 4 months ago #

   After I posted I found this description of how to use a post_is_in_descendant_category function.

   cat_is_ancestor_of looks useful. Thank you!

   I need to make some test cases to feel through how practical application of cat_is_ancestor_of is different from post_is_in_descendant_category. Interesting.

4. wspencer
   Member
   Posted 4 months ago #

   you could always do something like this.....

   if ( is_category('catgory1') || is_category('category2) {
   get_sidebar('sidebar1');
   }
   
   elseif ( is_category('category3') {
   get_sidebar('sidebar2')
   }
   
   else {
   get_sidebar('sidebar3')
   }

   the || means OR in PHP.

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