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Issue with update_field

  • Firstly I just wanted to thank you for creating such a fantastic plugin.

    I’ve been trying to get to the bottom of this issue for hours now but I’m having to admit defeat.

    Basically I’m having a issue with update_field I have a custom taxonomy (created through the CRT UI plugin) called company. Then via ACF I’ve created a custom field called average_review_score. What I’m trying to do is update this field through a fuction that used a mysql query to give me the average. I can get the data I need and I can appear to update the field. However in wp-admin when I view the custom taxonomy it is still showing the old value. I know I must be missing something but cannot figure what. This is my dummy code that I’ve been testing with:

    $field_key = "average_review_score";
    $value = "8";
    $post_id = "3";
    
    $get_av = get_field( "average_review_score", $post_id );
    echo $get_av;
    update_field( $field_key, $value, $post_id );

    If I echo $get_av I get the result I’ve set in $value.

    Am I missing something?

  • First, you’re using $value whenever you update the field, so it will always be 8 from the code you have here. Second, you say that you have a custom taxonomy and you’ve put the field on the taxonomy, but you’re not using a $post_id that is for a custom taxonomy. Overall, the explanation of what you’re doing isn’t very clear. Can you give more information about what you’re trying to do?

  • Sorry I was trying to keep the code simple to post on here. Yes, sorry I understand that the $value will always be 8. This value eventually be drawn from a mysql query so will show between 1 – 10 depending on the result.

    What I have is a custom taxonomy field which I wanted to store the average review score of all the customer reviews related to that taxonomy. So for example if the company’s average score was 8 then it would update my average_review_score field. I can then draw on this value for other parts of the site. This will be updated whenever I call a function that I have written.

    In the function it draws the data via a mysql query. From what I understand I then need to use update_field( $field_key, $value, $post_id ); to update the field. This appears to work because if I execute the following code

    $get_av = get_field( "average_review_score", $post_id );
    echo $get_av;

    it has changed the value to whatever I enter.

    However when I view the Edit Tag in wp-admin its still showing the old value that I originally entered:

    screen

    I must admit I might have totally misunderstood what I can and cannot do when updating the field. But I basically want to update the value, both in the frontend and backend of the site.

    Hopefully this makes it a little clearer as to what I’m trying to accomplish.

  • Looking at your original code, see my comments in the code

    
    $field_key = "average_review_score";
    $value = "8";
    $post_id = "3";
    
    $get_av = get_field( "average_review_score", $post_id );
    echo $get_av;
    
    // this is updating the post with an ID of 3
    // it is not updating a term in a taxonomy
    update_field( $field_key, $value, $post_id );
    

    If your intent is to update a field that is attached to a term in a taxonomy then you need to use a $post_id that represents that term. See “Getting values from other places” on this page https://www.advancedcustomfields.com/resources/get_field/

  • Thank you John. I hadn’t realised that it was updating to a post and not the taxonomy. Thank you for all your help!

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