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Show Categories for a Post

This article will walk through some common scenarios and development approaches used to  display Post Categories on the website.

Show All Post Categories associated with a Post

This is useful when you want to show all Categories associated with a blog article (or perhaps categories associated with a "project", where a project is a Post). 

Step One: Get the Posts linked to the current page, and assign to the variable linkedPost:

<!-- This returns an array of all the Posts associated with the current page, so don't use this. --> <ss:logic:variable as="linkedPost" value="[? \Components\Website\Posts::getAllLinkingToPage(\Components\Website\Pages::currentPageId()) ?]" /> <!-- Use this instead, because you only want one Post. Gets the first Post in the array --> <ss:logic:variable as="linkedPost" value="[? (\Components\Website\Posts::getAllLinkingToPage(\Components\Website\Pages::currentPageId()))[0] ?]" /> Step Two: Use a data repeater get all the Post Categories associated with the Post:

<h4>Post Categories</h4> <ul> <ss:data:repeater datasource="\Components\Website\Posts\Categories::getAllForPost($linkedPost['post_id'])" as="category"> <li><a href="[? $category ['page_id'] ?]">[? $category['post_category_title'] ?]</a></li> </ss:data:repeater> </ul> Step Three: Need to filter out one of the Post Categories?


<h4>Post Categories</h4> <ul> <ss:data:repeater datasource="\Components\Website\Posts\Categories::getAllForPost($linkedPost['post_id'])" as="category"> <ss:logic:if test="$category['post_category_id'] != 1"> <!-- Do not display post category id 1 --> <li><a href="[? $category['page_id'] ?]">[? $category ['post_category_title'] ?]</a></li> </ss:logic:if> </ss:data:repeater> </ul>