---
title: "Dynamically loading template parts in block themes"
url: https://daily.dev/posts/dynamically-loading-template-parts-in-block-themes-gvwojm0f0
source_url: https://developer.wordpress.org/news/2026/06/dynamically-loading-template-parts-in-block-themes
type: article
source: "WordPress Developer"
published: 2026-06-18T21:29:23.492Z
updated: 2026-06-18T21:29:45.411Z
tags: ["php", "wordpress"]
reading_time: 7
upvotes: 7
comments: 0
language: en
---

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# Dynamically loading template parts in block themes

**[WordPress Developer](https://daily.dev/sources/wordpressdev)** · 7 min read · 7 upvotes · 0 comments

## Summary

Block themes in WordPress lack the dynamic template loading flexibility of classic themes. Using the `render_block_data` filter hook, you can intercept block rendering and swap a template part's slug based on post category, page context, or any conditional logic — without duplicating entire templates. The tutorial walks through a real-world music site example where different sidebars load for different post categories, using early-return guards for performance and `locate_template()` to check for the existence of category-specific template part files before swapping slugs.

## Full article

daily.dev links to this article rather than hosting it. Read it at the original source: <https://developer.wordpress.org/news/2026/06/dynamically-loading-template-parts-in-block-themes>

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---

Tags: [#php](https://daily.dev/tags/php), [#wordpress](https://daily.dev/tags/wordpress)

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