Question

I don’t even know if I’m asking for the right thing. What I have is a list of categories and those categories will be links to filter items. Here’s what I’m starting with:

{foreach from=$items item=entry}
{strip}
    {foreach from=$entry->categories item='one_category'}
         {foreach from=$categories item='one'}
              {if $one_category.name == $one.name}
                  {$one.name}    
                  {$one.name|munge_string_to_url} 
              {/if}
         {/foreach}
     {/foreach}
{/strip}
{/foreach}

Here’s a better version:

So this lists out every instance used on a page. The intention is to list the instance 1x, if there is an instance.

  <ul>
    <li><a class="active" href="#" data-filter="*">All</a></li>
    {foreach from=$items item=entry}
    {foreach from=$categories item='one'} 
     <li><a href="#" data-filter=".{$one.name|munge_string_to_url}">{$one.name}</a></li>
    {/foreach}{/foreach}
  </ul>

This shows all the items but it’s not correct, if there are 20 articles assigned to one category, it lists it 20 times, if there are 5 articles assigned to one category it will list it 5 times. I just want one each for each matching string. Not a clue as to what to do. Thank you for any insight you can provide.

Answer 1

Let’s try this.

<ul>
    <li><a class="active" href="#" data-filter="*">All</a></li>
    {assign var="tempCat" value=""}
    {foreach from=$items item=entry}
        {if $entry->categories} 
        {strip}
            {foreach from=$entry->categories item='category'}
                {if !$tempCat|strstr:$category.name} 
                    <li><a href="#" data-filter=".{$category.name|munge_string_to_url}">{$category.name}</a></li>
                    {assign var="tempCat" value=$tempCat|cat:$category.name}
                {/if}
            {/foreach}
        {/strip}
        {/if}
    {/foreach}
</ul>

Basically, the idea is to keep a record of categories you’ve already added to the list and not add them again. I do this through $tempCat which starts as nothing and concatenates any category that’s not in it. So subsequent checks see the category is already added and skips it.