Sub-menu based on categories please

  • Resolved petethebloke

    (@petethebloke)


    14 years, 9 months ago

    I received an answer about sub-menus based on Pages. Now I am trying to figure it out for Categories.

    This doesn’t work (it’s in sidebar.php)….

    <ul>
  <?php wp_list_categories('show_count=0&title_li=&depth=1'); ?>
</ul>
<?php //above here is fine ?>
<div id="subnav">
<ul>
<?php
  $this_categ=0;
  foreach((get_the_category()) as $category) {
  /*this is the bit that's wrong - get_the_category() gets
    all the categories because it's not in the loop - I need
    something to get one category based on where we are at
    the moment*/
    $this_categ=$category->cat_ID;
  }
  if($this_categ){
    $output = wp_list_categories ('echo=0&child_of=' . $this_categ. '&title_li=');
  }
  echo $output;
?>
</ul>
Viewing 4 replies - 1 through 4 (of 4 total)
  • RGlover

    (@rglover)

    14 years, 9 months ago

    You’ll probably want to do something like this:

    <ul>
  <?php wp_list_categories('show_count=0&title_li=&depth=1'); ?>
</ul>
<?php //above here is fine ?>
<div id="subnav">
<ul>
<?php
  global $post;
  $this_categ=0;
  foreach((get_the_category($post->ID)) as $category) {
    $this_categ=$category->cat_ID;
  }
  if($this_categ){
    $output = wp_list_categories ('echo=0&child_of=' . $this_categ. '&title_li=');
  }
  echo $output;
?>
</ul>

    That’s untested, but passing the post ID as a parameter allows get_the_category() to work outside the post.

    Thread Starter petethebloke

    (@petethebloke)

    14 years, 9 months ago

    Thanks. That should be good provided the posts belong to one category, I should be able to work with that.

    Mark / t31os

    (@t31os_)

    14 years, 9 months ago

    Here’s a refined version that checks if you’re in the loop…

    <ul>
	<?php wp_list_categories('show_count=0&title_li=&depth=1'); ?>
</ul>
<div id="subnav">
	<ul>
	<?php if(!in_the_loop()) global $post; ?>
	<?php $catNow = get_cat_ID(single_cat_title($post->ID,'',false)); $output = ''; ?>
	<?php if($catNow && $catNow !== 0) $output .= wp_list_categories ('echo=0&child_of='.$catNow.'&title_li='); ?>
	<?php echo $output; ?>
	</ul>
</div>

    Although i’m not sure i fully understand your usage…

    Thread Starter petethebloke

    (@petethebloke)

    14 years, 8 months ago

    Thanks for that. I’m trying to get a horizontal nav and subnav based on categories and subcats. I’ve got sidebar.php displaying horizontally. It’s pretty well all working. There may be some odd results when posts are in multiple categories – that’s yet to be seen.

    Thanks again,

    Pete

Viewing 4 replies - 1 through 4 (of 4 total)
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