Duplicate an entry on approval if conditions match

gk-duplicate-on-approval.php

<?php // DO NOT COPY THIS LINE

function custom_duplicate_gf_entry( $entry_id ) {
    if ( ! class_exists( 'GravityView_Duplicate_Entry' ) ) {
        return new WP_Error( 'missing_class', 'GravityView_Duplicate_Entry class not found.' );
    }

    $entry = GFAPI::get_entry( $entry_id );
    if ( is_wp_error( $entry ) ) {
        return $entry;
    }

    $duplicator = new GravityView_Duplicate_Entry();

    // Use reflection to access the private method `duplicate_entry`
    try {
        $reflection = new ReflectionClass( $duplicator );
        $method = $reflection->getMethod( 'duplicate_entry' );
        $method->setAccessible( true );

        $result = $method->invoke( $duplicator, $entry );
        return $result;
    } catch ( ReflectionException $e ) {
        return new WP_Error( 'reflection_error', $e->getMessage() );
    }
}

add_action( 'gravityview/approve_entries/approved', function( $entry_id ) {

    $entry = GFAPI::get_entry( $entry_id );
    if ( is_wp_error( $entry ) ) {
        error_log( 'Could not load entry.' );
        return;
    }

    // Condition checks:
    $form_id = rgar( $entry, 'form_id' );
    $field_261_1 = rgar( $entry, '261.1' );
    $field_218 = rgar( $entry, '218' );

    if ( intval( $form_id ) !== 35 ) {
        return; // Not the correct form
    }

    if ( empty( $field_261_1 ) ) {
        return; // Field 261.1 is empty
    }

    if ( $field_218 !== '1' ) {
        return; // Field 218 does not equal "1"
    }

    // All conditions passed — duplicate the entry
    $result = custom_duplicate_gf_entry( $entry_id );

    if ( is_wp_error( $result ) ) {
        error_log( 'Duplication failed: ' . $result->get_error_message() );
    } else {
        error_log( 'Entry duplicated successfully. New entry ID: ' . $result );
    }

}, 10, 1 );