Title: Dynamically change GenerateBlocks QueryLoop
Last modified: December 11, 2023
---
# Dynamically change GenerateBlocks QueryLoop
* Resolved [alyshtva](https://wordpress.org/support/users/alyshtva/)
* (@alyshtva)
* [2 years, 5 months ago](https://wordpress.org/support/topic/dynamically-change-generateblocks-queryloop/)
* I`m trying to build testimonial blocks, and want to add stars equal to the ACF
custom field. For now, I have this code:
* ```wp-block-code
$stars_value = get_post_meta(get_the_ID(), 'stars', true);
// Maximum stars to display
$max_stars = 5;
for ($i = 1; $i <= $max_stars; $i++) {
// Check if the current star
$star_class = ($i <= $stars_value) ? 'filled' : 'empty';
echo '';
}
```
* which works correctly except for the fact that WP get_post_meta(get_the_ID(),‘
stars’, true); returns the current page ID, which is correct behavior, so I used
render block to change the query loop block like this:
* ```wp-block-code
add_filter('render_block', function($block_content, $block) {
if (!empty($block['attrs']['className']) && 'stars-holder' === $block['attrs']['className']) {
$stars_value = get_post_meta(get_the_ID(), 'stars', true);
// Maximum stars to display
$max_stars = 5;
for ($i = 1; $i <= $max_stars; $i++) {
// Check if the current star
$star_class = ($i <= $stars_value) ? 'filled' : 'empty';
// Modify the block content here
$block_content .= '';
}
}
return $block_content;
}, 10, 2);
```
* But it’s not working for some reason; perhaps you can help me identify my mistakes?
Thanks.
* The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Fdynamically-change-generateblocks-queryloop%2F%3Foutput_format%3Dmd&locale=en_US)
to see the link]_
Viewing 7 replies - 1 through 7 (of 7 total)
* Plugin Support [ying](https://wordpress.org/support/users/yingscarlett/)
* (@yingscarlett)
* [2 years, 5 months ago](https://wordpress.org/support/topic/dynamically-change-generateblocks-queryloop/#post-17269265)
* Hi there,
* Can you first remove the `stars-holder` class from the Grid block and the container
block? And the class you added to the headline block should’ve been `stars-holder`
not `stars-holders`.
* Let me know how it goes.
* Thread Starter [alyshtva](https://wordpress.org/support/users/alyshtva/)
* (@alyshtva)
* [2 years, 5 months ago](https://wordpress.org/support/topic/dynamically-change-generateblocks-queryloop/#post-17269276)
* Hey, thank you for your feedback. I’ve made changes.
* Plugin Support [ying](https://wordpress.org/support/users/yingscarlett/)
* (@yingscarlett)
* [2 years, 5 months ago](https://wordpress.org/support/topic/dynamically-change-generateblocks-queryloop/#post-17269375)
* I’m still seeing the class on container block, can you make sure only the headine
block has this class?
* [https://app.screencast.com/wksGkgdgSIzlN](https://app.screencast.com/wksGkgdgSIzlN)
* Thread Starter [alyshtva](https://wordpress.org/support/users/alyshtva/)
* (@alyshtva)
* [2 years, 5 months ago](https://wordpress.org/support/topic/dynamically-change-generateblocks-queryloop/#post-17269399)
* Oh, my bad, now it should be fine
- This reply was modified 2 years, 5 months ago by [alyshtva](https://wordpress.org/support/users/alyshtva/).
* Plugin Support [ying](https://wordpress.org/support/users/yingscarlett/)
* (@yingscarlett)
* [2 years, 5 months ago](https://wordpress.org/support/topic/dynamically-change-generateblocks-queryloop/#post-17269432)
* Now it should work, if it’s not, make sure:
1. the custom field slug `stars` is correct.
2. all of the 3 posts already have the value set in the `stars` field.
* Thread Starter [alyshtva](https://wordpress.org/support/users/alyshtva/)
* (@alyshtva)
* [2 years, 5 months ago](https://wordpress.org/support/topic/dynamically-change-generateblocks-queryloop/#post-17269477)
* Oh… I see now. Yes, it’s working. I thought I had misunderstood something, but
the code itself was pretty much correct. Thank you so much for your help.
* I wish you a peaceful sky and a great time.
* Plugin Support [ying](https://wordpress.org/support/users/yingscarlett/)
* (@yingscarlett)
* [2 years, 5 months ago](https://wordpress.org/support/topic/dynamically-change-generateblocks-queryloop/#post-17269479)
* Glad to hear that 🙂 Thank you!
Viewing 7 replies - 1 through 7 (of 7 total)
The topic ‘Dynamically change GenerateBlocks QueryLoop’ is closed to new replies.
* 
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## Tags
* [GB](https://wordpress.org/support/topic-tag/gb/)
* [query loop](https://wordpress.org/support/topic-tag/query-loop/)
* 7 replies
* 2 participants
* Last reply from: [ying](https://wordpress.org/support/users/yingscarlett/)
* Last activity: [2 years, 5 months ago](https://wordpress.org/support/topic/dynamically-change-generateblocks-queryloop/#post-17269479)
* Status: resolved