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update_field() with repeater fields issue

  • Hi,
    I’m having a problem updating/appending rows in repeater fields. I’m trying to migrate all data from one table into user meta and keep getting the following error.

    Catchable fatal error: Object of class WP_Error could not be converted to string in C:\wamp\www\baca\wp-content\plugins\advanced-custom-fields\core\fields\_functions.php

    I’m not sure what I’m doing wrong as I’m following the resources at but not working. Below is the code I’m using. Can someone see whats wrong?

    function add_members() {
    	global $wpdb;
    	$results = $wpdb->get_results( "SELECT * FROM members" ); 
    	foreach($results as $row) {
    		$new_user = array(
    	        'user_login' => $row->CompanyName,
                    'user_pass' => wp_generate_password ( 12, false ),
                    'user_url' => $row->Website,
                    'user_email' => $row->Email,
                    'wp_capabilities' => 'Subscriber'
    	    $pid = wp_insert_user($new_user);
    	    if($pid) :
     		$field_key = "field_52f4fedbcdb79";
     		$post_id = $pid;
    		$value = get_field($field_key, $post_id);
    		$value[] = array(
    			"more_contacts_name" => $row->ContactName, 
    			"more_contacts_email" => $row->ContactEmail, 
    			"acf_fc_layout" => "row_1"
     		$value[] = array(
    			"more_contacts_name" => $row->ContactName2, 
    			"more_contacts_email" => $row->ContactEmail2, 
    			"acf_fc_layout" => "row_2"
    		update_field( $field_key, $value, $post_id );
    add_action( 'edit_user_profile', 'add_members' );
  • Hi @chrisg

    $post_id = $pid; should be $post_id = "user_{$pid}";

    Please also debug your code before using the update_field function to make sure all the data is correct.

    it is most likely that $pid is not what you think it is.


  • Brilliant, thanks Elliot. Thats solved it. I didn’t realise you had to add a prefix to the newly created user id. Seems pretty obvious now as the id could be for anything.


  • How to update the repeater sub field of each post.

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