Post excerpt > Ensure the postId from the block context is used to get_the_excerpt

[nefeline]

What?

Ensures the postId from the block context is used for fetching the post excerpt.

Why?

Similar to this change made to the Post Title block, here we can ensure that independent of where the Post Excerpt block is added, the rendered content will be aligned with the context of the block itself rather than the global post.

For context, this limitation surfaced while working on the new Single Product Block on WooCommerce blocks, where the displayed excerpt would match the current post rather than the block context while at the same time, the Post Title block would respect the block context accordingly.

Testing Instructions

1. Add the Post Excerpt block to any post/page.
2. Confirm that the excerpt is properly rendered both on the editor and on the front-end sides.

[github-actions]

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[gziolo]

Thank you for opening the bug fix. It makes sense and aligns with how it works in edit.

Similar to this change made to the Post Title block

Thank you for linking to that prior work from @spacedmonkey. Would it also he beneficial for performance to use the post object here?

[carolinan]

Would it also he beneficial for performance to use the post object here?

There is a related discussion here but not enough testing has been done:
#47997

[gziolo]

Approving the changes.

The follow-up could cover potential perf improvements. We could also refactor the code so it's easier to follow:

$excerpt = get_the_excerpt( $block->context['postId'] );
if ( isset( $excerpt_length ) ) {
    $excerpt = wp_trim_words( $excerpt, $excerpt_length );
}

[aristath]

LGTM 👍

I agree that it would be better if we tweak the code a bit like @gziolo suggested above, but no strong feelings either way.

[nefeline]

Thanks all 🎉 !

I tweaked the code as @gziolo suggested.

[github-actions]

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