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 post:
<!-- This returns an array of all the Posts associated with the current page, so don't use this. -->
<logic:variable as="posts" 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 -->
<logic:variable as="post" 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>
<data:repeater datasource="\Components\Website\Posts\Categories::getAllForPost($post['post_id'])" as="category">
<li><a href="[? $category ['page_id'] ?]">[? $category['post_category_title'] ?]</a></li>
</data:repeater>
</ul>
Step Three: Need to filter out one of the Post Categories?
<h4>Post Categories</h4>
<ul>
<data:repeater datasource="\Components\Website\Posts\Categories::getAllForPost($post['post_id'])" as="category">
<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>
</logic:if>
</data:repeater>
</ul>
