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This plugin provides functions to retrieve the parent category of any particular post should it be assigned to a sub category of that parent category.
Using this feature, the plugin is also able to modify the WordPress Loop to redirect any category page generation to the parent category. This is especially useful when theme developers want to be able to specify category-x.php templates and have all related posts, be it those assigned to the category or the sub categories use that template for page generation.
So for example the current category structure is as follows.
<ul>
<li>Main Category (has category-x.php template)
<ul>
<li>Sub Category 1</li>
<li>Sub Category 2</li>
</ul>
</li>
</ul>
A post is assigned to “Sub Category 2”.
When the post is requested the plugin will automatically detect if it has a parent category. If so, it will modify the WP variables to set the current category as the parent category and add a new variable stating the actual category of the post. This affects the WordPress Loop to category-x.php template defined for the parent
<h3>Usable Commands for Theme Developers</h3>
The PHP commands for theme developers to use are pretty straight forward.
get_category_child() returns the current post child category ID.
is_parent() checks if the current post is at the parent category.
get_category_title($id) gets the title of the category that is $id.
get_category_parent() returns the current post’s parent category ID.

Elevate Parent Category Template

Elevates parent category template to top of WordPress Loop.

Eliot Akira

<h4>Deprecation Notice</h4>

This plugin is no longer in active development.
Please use the next-generation template system, <a href="https://wordpress.org/plugins/tangible-loops-and-logic/" rel="ugc">Loops & Logic</a>.
<h4>Overview</h4>

From a single field to entire pages, Custom Content Shortcode is a set of commands to display content where you need.
The [content] shortcode displays any of the following: posts, pages, custom post types, fields, images, menus, or widget areas.
The [loop] shortcode performs query loops. It can display, for example, available products in a category, or excerpts from the 5 most recent posts. You can query by parameters such as: post type, taxonomy, date, and field values.
There is a reference section under Settings -> Custom Content.
<h4>Included</h4>

Here are some of the included features:
<ul>
<li>Wide range of query parameters to display site content</li>
<li>Conditional content based on field value, login status, etc.</li>
<li>Overview of your site’s content structure</li>
<li>Relative URLs for links and images</li>
<li>Cache the result of a query</li>
<li>Optional: Gallery field, Mobile Detect, Math</li>
</ul>
Support for other plugins: <a href="https://wordpress.org/plugins/advanced-custom-fields/" rel="ugc">Advanced Custom Fields</a>, <a href="https://wordpress.org/plugins/wck-custom-fields-and-custom-post-types-creator/" rel="ugc">WCK Fields and Post Types</a>

Custom Content Shortcode

Display posts, pages, custom post types, fields, attachments, comments, images, users, menus, sidebars

Elevate Parent Category Template vs Custom Content Shortcode