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Store block template object in object cache.#5467

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spacedmonkey wants to merge 2 commits intoWordPress:trunkfrom
spacedmonkey:fix/cache-file-contents
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Store block template object in object cache.#5467
spacedmonkey wants to merge 2 commits intoWordPress:trunkfrom
spacedmonkey:fix/cache-file-contents

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@spacedmonkey
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@spacedmonkey spacedmonkey commented Oct 12, 2023

Trac ticket: https://core.trac.wordpress.org/ticket/59600


This Pull Request is for code review only. Please keep all other discussion in the Trac ticket. Do not merge this Pull Request. See GitHub Pull Requests for Code Review in the Core Handbook for more details.

}

$theme = ! isset( $template_file['theme'] ) ? $template_file['theme'] : get_stylesheet();
$template->content = file_get_contents( $template_file['path'] );
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@felixarntz The massive performance benefits you saw in your PR are from this line. At the moment, EVERY time a block template is loaded, it is read into memory. In the case of TT4, this means loading, post meta template for every post on the page. In my test site, around 10 times. This is wasteful.

$template_content = file_get_contents( $template_file['path'] );
$theme = get_stylesheet();
$template = new WP_Block_Template();
$cache_key = md5( serialize( $template_file ) );
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$template_file is array, with contains theme, slug and path. Making it a good cache key.

);

wp_cache_add_non_persistent_groups( array( 'counts', 'plugins', 'theme_json' ) );
wp_cache_add_non_persistent_groups( array( 'counts', 'plugins', 'theme_json', 'block_template' ) );
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@felixarntz This is the most important part of this PR. This caches can never be a be a transient cache. Files can be edited local or by uploading via FTP. This will trigger no cache invalidation.

Co-authored-by: Mukesh Panchal <mukeshpanchal27@users.noreply.github.com>
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@spacedmonkey This approach caches more data than my PR #5463, but the concerns that you shared in #5463 (review) apply to this PR as well, as far as I can tell.

Can you please clarify what the benefits of this PR are over #5463?

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3 participants