shopify上ajaxify购物车的问题

Question

我在shopify上遇到ajaxify购物车的问题。 添加产品时，更新购物车计数会很好，但是，只有在重新加载页面后，产品才会显示在购物车/抽屉购物车中。 我正在尝试立即更新购物车，而不必先重新加载页面。

我尝试将ajaxify脚本更改为/cart/update.js而不是/cart/add.js，但这没有用，并且产品也没有添加到购物车中。我还尝试将其设置为cart.js，它会更新购物车，但它也会转到购物车页面，而不是停留在产品页面上。

任何想法如何做到这一点？

我的Ajax代码如下：

    <script>
window.onload = function() {
Shopify.AjaxifyCart = (function($) {
  // Some configuration options.
  // I have separated what you will never need to change from what
  // you might change.
  var _config = {
    // What you might want to change
    addToCartBtnLabel:             'Add to cart',
    addedToCartBtnLabel:           'Thank you!',
    addingToCartBtnLabel:          'Adding...',
    soldOutBtnLabel:               'Sold Out',
    howLongTillBtnReturnsToNormal: 1000, // in milliseconds.
    cartCountSelector:             '.CartCount',
    cartTotalSelector:             '#cart-price',
    // 'aboveForm' for top of add to cart form,
    // 'belowForm' for below the add to cart form, and
    // 'nextButton' for next to add to cart button.
    feedbackPosition:              'nextButton',
    // What you will never need to change
    addToCartBtnSelector:          '[type="submit"]',
    addToCartFormSelector:         'form[action="/cart/add"]',
    shopifyAjaxAddURL:             '/cart/add.js',
    shopifyAjaxCartURL:            '/cart.js'
  };
  // We need some feedback when adding an item to the cart.
  // Here it is.
  var _showFeedback = function(success, html, $addToCartForm) {
    $('.ajaxified-cart-feedback').remove();
    var feedback = '<p class="ajaxified-cart-feedback ' + success + '">' + html + '</p>';
    switch (_config.feedbackPosition) {
      case 'aboveForm':
        $addToCartForm.before(feedback);
        break;
      case 'belowForm':
        $addToCartForm.after(feedback);
        break;
      case 'nextButton':
      default:
        $addToCartForm.find(_config.addToCartBtnSelector).after(feedback);
        break;
    }
    // If you use animate.css
    // $('.ajaxified-cart-feedback').addClass('animated bounceInDown');
    $('.ajaxified-cart-feedback').slideDown();
  };
  var _setText = function($button, label) {
    if ($button.children().length) {
      $button.children().each(function() {
        if ($.trim($(this).text()) !== '') {
          $(this).text(label);
        }
      });
    }
    else {
      $button.val(label).text(label);
    }
  };
  var _init = function() {
    $(document).ready(function() {
      $(_config.addToCartFormSelector).submit(function(e) {
        e.preventDefault();
        var $addToCartForm = $(this);
        var $addToCartBtn = $addToCartForm.find(_config.addToCartBtnSelector);
        _setText($addToCartBtn, _config.addingToCartBtnLabel);
        $addToCartBtn.addClass('disabled').prop('disabled', true);
        // Add to cart.
        $.ajax({
          url: _config.shopifyAjaxAddURL,
          dataType: 'json',
          type: 'post',
          data: $addToCartForm.serialize(),
          success: function(itemData) {
            // Re-enable add to cart button.
            $addToCartBtn.addClass('inverted');
            _setText($addToCartBtn, _config.addedToCartBtnLabel);
            _showFeedback('success',' ',$addToCartForm);
            window.setTimeout(function(){
              $addToCartBtn.prop('disabled', false).removeClass('disabled').removeClass('inverted');
              $addToCartForm.find('.swatch-element.option-selected').removeClass("option-selected");
              _setText($addToCartBtn,_config.addToCartBtnLabel);
            }, _config.howLongTillBtnReturnsToNormal);
            // Update cart count and show cart link.
            $.getJSON(_config.shopifyAjaxCartURL, function(cart) {
              if (_config.cartCountSelector && $(_config.cartCountSelector).size()) {
                var value = $(_config.cartCountSelector).html() || '0';
                $(_config.cartCountSelector).html(value.replace(/[0-9]+/,cart.item_count)).removeClass('hidden-count');
              }
              if (_config.cartTotalSelector && $(_config.cartTotalSelector).size()) {
                if (typeof Currency !== 'undefined' && typeof Currency.moneyFormats !== 'undefined') {
                  var newCurrency = '';
                  if ($('[name="currencies"]').size()) {
                    newCurrency = $('[name="currencies"]').val();
                  }
                  else if ($('#currencies span.selected').size()) {
                    newCurrency = $('#currencies span.selected').attr('data-currency');
                  }
                  if (newCurrency) {
                    $(_config.cartTotalSelector).html('<span class=money>' + Shopify.formatMoney(Currency.convert(cart.total_price, "{{ shop.currency }}", newCurrency), Currency.money_format[newCurrency]) + '</span>');
                  }
                  else {
                    $(_config.cartTotalSelector).html(Shopify.formatMoney(cart.total_price, "{{ shop.money_format | remove: "'" | remove: '"' }}"));
                  }
                }
                else {
                  $(_config.cartTotalSelector).html(Shopify.formatMoney(cart.total_price, "{{ shop.money_format | remove: "'" | remove: '"' }}"));
                }
              };
            });
          },
          error: function(XMLHttpRequest) {
            var response = eval('(' + XMLHttpRequest.responseText + ')');
            response = response.description;
            if (response.slice(0,4) === 'All ') {
              $addToCartBtn.prop('disabled', false);
              _setText($addToCartBtn, _config.soldOutBtnLabel);
              $addToCartBtn.prop('disabled',true);
            }
            else {
              $addToCartBtn.prop('disabled', false).removeClass('disabled');
              _setText($addToCartBtn, _config.addToCartBtnLabel);
            }
          }
        });
        return false;
      });
    });
  };
  return {
    init: function(params) {
        // Configuration
        params = params || {};
        // Merging with defaults.
        $.extend(_config, params);
        // Action
        $(function() {
          _init();
        });
    },
    getConfig: function() {
      return _config;
    }
  }
})(jQuery);
Shopify.AjaxifyCart.init();
}
</script>

{% comment %}
  If you want to animate your feedback message.
{% endcomment %}

{% comment %}
{{ '//cdnjs.cloudflare.com/ajax/libs/animate.css/3.1.0/animate.min.css' | stylesheet_tag }}
{% endcomment %}

{{ '//cdnjs.cloudflare.com/ajax/libs/font-awesome/4.0.3/css/font-awesome.css' | stylesheet_tag }}

<style>
.ajaxified-cart-feedback {
  display: none;
  line-height: 36px;
  font-size: 90%;
  vertical-align: middle;
}
p.ajaxified-cart-feedback.error {
  display:none;
}
.ajaxified-cart-feedback.success {
  color: #3D9970;
}
.ajaxified-cart-feedback.error {
  color: #FF4136;
}
.ajaxified-cart-feedback a {
  border-bottom: 1px solid;
}
</style>

表单看起来像这样

  <form action="/cart/add" method="post">
    <p><input type="hidden" name="id" value="{{ variant.id }}" /></p>
    <div class="add-btn-container">
  <button
  class="btn view-product add-to-cart-main"
    type="submit"
    name="add"
    data-add-to-cart
    {% unless current_variant.available %}disabled="disabled"{% endunless %}>
      <span data-add-to-cart-text>
        {% if current_variant.available %}
          {{ 'products.product.add_to_cart' | t }}
        {% else %}
          {{ 'products.product.sold_out' | t }}
        {% endif %}
      </span>
  </button>
</div>
</form>