Reply To: Repeater load_value()

• 23creative

• August 19, 2019 at 9:24 am

Think i have found a way to achieve what i need.

I ended up using the pre_load_value filter. which if you hook into and return a value. is then skipped when the repeater field goes to load its value.

This way i can mimic the load_value function and the acf_get_value function just returns my value as opposed to the system value.

incase anyone ever needs this in the future here is the code i used.

add_filter('acf/pre_load_value',   array($this, 'pre_load_value'), 3, 3);
function pre_load_value( $value, $post_id, $field  ){

    if($field['type'] != 'repeater'){
        return $value;
    }

    if(!$this->search_sub_fields_for_type($field['sub_fields'], $this->name)){
        return $value;
    }

    // Get field name.
    $field_name = $field['name'];

    // Check store.
    $store = acf_get_store( 'values' );
    if( $store->has( "$post_id:$field_name" ) ) {
        return $store->get( "$post_id:$field_name" );
    }

    // Load value from database.
    $value = acf_get_metadata( $post_id, $field_name );

    // Use field's default_value if no meta was found.
    if( $value === null && isset($field['default_value']) ) {
        $value = $field['default_value'];
    }
    //User our own load_value filter to add additional information to subfields
    $value = apply_filters( "ttc_repeater_load_value", $value, $post_id, $field );

    // Update store.
    $store->set( "$post_id:$field_name", $value );

    // Return value.
    return $value;

}

add_filter('ttc_repeater_load_value',   array($this, 'try_add_grid_info'), 2, 3);
function try_add_grid_info($value, $post_id, $field){

    // bail early if no sub fields
    if( empty($field['sub_fields']) ) return $value;

    // vars
    $value = intval($value);
    $rows = array();

    $field["total_rows"] = $value;

    // loop
    for( $i = 0; $i < $value; $i++ ) {

        // create empty array
        $rows[ $i ] = array();

        // loop through sub fields
        foreach( array_keys($field['sub_fields']) as $j ) {

            // get sub field
            $sub_field = $field['sub_fields'][ $j ];

            // bail ealry if no name (tab)
            if( acf_is_empty($sub_field['name']) ) continue;

            // update $sub_field name
            $sub_field['name'] = "{$field['name']}_{$i}_{$sub_field['name']}";
            $sub_field["original_order"] = $i;
            $sub_field["latest_row"] = (($field["total_rows"]-1) == $i);
            $sub_field["total_row_count"] = ($field["total_rows"]);

            // get value
            $sub_value = acf_get_value( $post_id, $sub_field );

            // add value
            $rows[ $i ][ $sub_field['key'] ] = $sub_value;

        }

    }

    return $rows;

}

/** function to loop through sub fields and look for a particular sub field type.
 * @param $sub_fields array of repeater sub fields
 * @param $field_type - Field type we are looking for
 * @return bool
 */
function search_sub_fields_for_type($sub_fields, $field_type){
    if(!empty($sub_fields)){

        foreach($sub_fields as $sub_field){

            if(!empty($sub_field["type"]) && $sub_field["type"] == $field_type ){
                return $sub_field;
            }
        }

    }

    return false;
}