Accessing values from a nested array in dynamic data

How To
1

I have an ACF repeater custom field with a “file” type sub-field returning an array.

I can access the main values (url, filename etc) of the array just fine using:
{acf_my_custom_field_name_my_subfield_name:array_value|url}

I want to be able to access the thumbnail of my file, but this is buried in a sub-array of the returned value called “sizes”.

{acf_my_custom_field_name_my_subfield_name:array_value|sizes}

which is returned as a JSON string.

According to the dynamic data documentation:

“In cases where the value is a nested array, Bricks will flatten it as a JSON string to allow for seamless output without any errors.”

I can see that the data is being returned as a JSON string, but I have no idea how to output any part of this in my template.

Can someone please decipher this explanation for me and let me know how I can output values from this subarray in my template using dynamic data variables?

I can write PHP, but I’d rather stick with the Bricks variables if at all possible.

Thanks.

2

Apparently this isn’t possible using Bricks dynamic data.

All you get is the returned JSON string, which isn’t much use for extracting sub-array values.

I wrote a shortcode instead that takes the id and spits out the thumbnail using this code:

<a href="{acf_digital_purchase_download_links_download_file:array_value|url}" download>[display-thumbnail id="{acf_digital_purchase_download_links_download_file:array_value|id}" width="100" height" auto"]</a>

Reply to this post if you want me to share the code of my shortcode that I created.

3

Yes, of course, leave the code. It will be useful. But you could not register the shortcode, but simply create a function and display it as {echo:display-thumbnail}

4

Here’s the code.

Doing it solely as a function doesn’t allow me to pass parameters like size or class name, so a shortcode makes it more generally useful, rather than hardcoding these kinds of things.

5

this

	ob_start();
	echo '<span class="' . $class . '">';
    echo $thumbnail;
	echo '</span>';
	$html = ob_get_contents();
	ob_end_clean();	
	
	return $html;

change to

return "<span class='{$class}'>{$thumbnail}</span>";

or

return '<span class="' . $class . '">' . $thumbnail . '</span>';
6

Thanks, but I wasn’t looking for feedback or help with my code.

I only shared it because you asked me to. I thought you wanted it to help you, not to tell me how to do it better.

That’s how I write my short codes and I’m happy with it thanks.

I won’t waste my time next time.

7

Your solution helped me. I’m sorry that a banal attempt to give recommendations to improve general knowledge is perceived as aggression.

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