Gravity在多步骤表单上形成Woocommerce产品页面Ajax

Question

以下是一个不起作用的示例：http://wafpro.com/product/waf-pro-dedicate-website-coverage/表单位于页面的末尾。请注意，一旦您添加信息并按“下一步”，整个页面就会刷新，您必须向下滚动才能继续填写表单。

请参阅：http://wafpro.com/漏洞扫描表单及其在ajax中的工作方式，并在点击“下一步”时将用户置于该部分。这就是产品页面的工作方式。

我的表单已经通过重力表单呈现，并且设计有多步和条件逻辑元素。我有一个将Gravity Forms与WooCommerce集成的插件：www.woothemes.com/products/gravity-forms-add-ons/ 在产品页面上使用此插件，ajax可以修改子总计和总成本，但不适用于多步骤表单。

以下是woocommerce-gravityforms-product-addons / gravityforms-product-addons-ajax.php

的副本

<?php class woocommerce_gravityforms_product_form {
private $current_page;
private $next_page;
private $form_id = 0;
private $product_id = 0;
public function __construct($form_id, $product_id) {
    $this->form_id = $form_id;
    $this->product_id = $product_id;
    add_filter('gform_form_tag', array(&$this, 'on_form_tag'), 10, 2);
    add_filter('gform_submit_button', array(&$this, 'on_submit_button'), 10, 2);
}

function get_form($options) {
    global $woocommerce;

    $product = null;
    if (function_exists('get_product')) {
        $product = get_product($this->product_id);
    } else {
        $product = new WC_Product($this->product_id);
    }

    extract(shortcode_atts(array(
        'display_title' => true,
        'display_description' => true,
        'display_inactive' => false,
        'field_values' => false,
        'ajax' => false,
        'tabindex' => 1,
        'label_subtotal' => __('Subtotal', 'wc_gf_addons'),
        'label_options' => __('Options', 'wc_gf_addons'),
        'label_total' => __('Total', 'wc_gf_addons'),
        'disable_label_subtotal' => 'no',
        'disable_label_options' => 'no',
        'disable_label_total' => 'no',
        'disable_calculations' => 'no'
            ), $options));

    //Get the form meta so we can make sure the form exists.
    $form_meta = RGFormsModel::get_form_meta($this->form_id);
    if (!empty($form_meta)) {

        if (!empty($_POST)) {
            $_POST['gform_submit'] = isset($_POST['gform_old_submit']) ? $_POST['gform_old_submit'] : '';
            $_POST['gform_old_submit'] = $_POST['gform_submit'];
        }

        $form = RGForms::get_form($this->form_id, $display_title, $display_description, $display_inactive, $field_values, $ajax, $tabindex);

        unset($_POST['gform_submit']);
        $form = str_replace('</form>', '', $form);

        $form = str_replace('gform_submit', 'gform_old_submit', $form);

        $this->current_page = GFFormDisplay::get_current_page($this->form_id);
        $this->next_page = $this->current_page + 1;
        $this->previous_page = $this->current_page - 1;
        $this->next_page = $this->next_page > $this->get_max_page_number($form_meta) ? 0 : $this->next_page;

        if ($product->product_type == 'variable' || $product->product_type == 'variable-subscription') {
            echo '<div class="gform_variation_wrapper gform_wrapper single_variation_wrap">';
        } else {
            echo '<div class="gform_variation_wrapper gform_wrapper">';
        }

        if ($product->is_type('variable')) :
            //echo '<input type="hidden" name="add-to-cart" value="variation" />';
            echo '<input type="hidden" id="product_id" name="product_id" value="' . $this->product_id . '" />';
        elseif ($product->has_child()) :
            //echo '<input type="hidden" name="add-to-cart" value="group" />';
            echo '<input type="hidden" id="product_id" name="product_id" value="' . $this->product_id . '" />';
        else :
            //echo '<input type="hidden" name="add-to-cart" value="' . $this->product_id . '" />';
            echo '<input type="hidden" id="product_id" name="product_id" value="' . $this->product_id . '" />';
        endif;

        if (wc_is_21x()) {
            wp_nonce_field('add_to_cart');
        } else {
            $woocommerce->nonce_field('add_to_cart');
        }

        echo '<a id="_form_' . $this->form_id . '" href="#_form_' . $this->form_id . '" class="gform_anchor"></a>';
        echo $form;

        echo '<input type="hidden" name="gform_form_id" id="gform_form_id" value="' . $this->form_id . '" />';
        echo '<input type="hidden" id="woocommerce_get_action" value="" />';
        echo '<input type="hidden" id="woocommerce_product_base_price" value="' . $product->get_price() . '" />';

        $description_class = rgar($form_meta, "descriptionPlacement") == "above" ? "description_above" : "description_below";
        ?>

        <?php
        $this->on_print_scripts();

        if ($disable_calculations == 'no') :
            ?>

            <div class="product_totals">
                <ul id="gform_totals_<?php echo $this->form_id; ?>" class="gform_fields <?php echo $form_meta['labelPlacement'] . ' ' . $description_class; ?>">
                    <li class="gfield" <?php
                    if ($disable_label_subtotal == 'yes')
                        echo 'style="display:none;"';
                    ?> >
                        <label class="gfield_label"><?php echo $label_subtotal; ?></label>
                        <div class="ginput_container">
                            <span class="formattedBasePrice ginput_total"></span>
                        </div>
                    </li>
                    <li class="gfield" <?php
                    if ($disable_label_options == 'yes')
                        echo 'style="display:none;"';
                    ?> >
                        <label class="gfield_label"><?php echo $label_options; ?></label>
                        <div class="ginput_container">
                            <span class="formattedVariationTotal ginput_total"></span>
                        </div>
                    </li>
                    <li class="gfield" <?php
                    if ($disable_label_total == 'yes')
                        echo 'style="display:none;"';
                    ?> >
                        <label class="gfield_label"><?php echo $label_total; ?></label>
                        <div class="ginput_container">
                            <span class="formattedTotalPrice ginput_total"></span>
                        </div>
                    </li>
                </ul>
            </div>
            <style>
                .single_variation .price {
                    display:none !important;
                }
            </style>
        <?php endif; ?>
        <style>
            .hidden-total {
                display:none !important;
            }
        </style>



        <?php
        echo '</div>';
    }
}

// filter out the Gravity Form form tag so all we have are the fields
function on_form_tag($form_tag, $form) {
    if ($form['id'] != $this->form_id) {
        return $form_tag;
    }

    return '';
}

// filter the Gravity Forms button type
function on_submit_button($button, $form) {
    if ($form['id'] != $this->form_id) {
        return $button;
    }

    return '';
}

function on_print_scripts() {


    $garvityforms_params = array(
        'form_id' => $this->form_id,
        'next_page' => $this->next_page,
        'previous_page' => $this->previous_page,
    );

    wp_localize_script('wc-gravityforms-product-addons', 'gravityforms_params', $garvityforms_params);
    ?>
    <script>
        gravityforms_params = <?php echo json_encode($garvityforms_params); ?>;

        gform.addFilter('gform_product_total', function(total, formId) {
            return update_dynamic_price(total);
        });

    </script>
    <?php
}

private function get_max_page_number($form) {
    $page_number = 0;
    foreach ($form["fields"] as $field) {
        if ($field["type"] == "page") {
            $page_number++;
        }
    }
    return $page_number == 0 ? 0 : $page_number + 1;
}

}＆GT;

我修改了设置

 extract(shortcode_atts(array(
    'display_title' => true,
    'display_description' => true,
    'display_inactive' => false,
    'field_values' => false,
    'ajax' => false,
    'tabindex' => 1,
    'label_subtotal' => __('Subtotal', 'wc_gf_addons'),
    'label_options' => __('Options', 'wc_gf_addons'),
    'label_total' => __('Total', 'wc_gf_addons'),
    'disable_label_subtotal' => 'no',
    'disable_label_options' => 'no',
    'disable_label_total' => 'no',
    'disable_calculations' => 'no'
        ), $options));

因此'ajax' => false,为'ajax' => true,，点击“下一步”/ waf-pro-dedicatedate-website-coverage上的表单/更改为/＃_ form_1并呈现空白页。

需要修改哪些内容才能让ajax在产品页面上处理多步骤表单而页面上没有刷新和用户丢失的位置？