shopify购买按钮上的最低数量验证

Question

我希望在Shopify购买按钮购物车中添加最小数量3的验证。 以下代码用于Shopify立即购买按钮。您可以将其添加到任何HTML或PHP页面进行测试。

我需要为结帐添加验证，即用户需要添加最小数量3。直到用户为相同或不同产品添加总计3数量时，结帐不起作用。对于相同或不同的产品，我们的购物车中至少需要3个数量。

<div id='collection-component-1595510427059'></div>
<script type="text/javascript">
/*<![CDATA[*/
(function () {
  var scriptURL = 'https://sdks.shopifycdn.com/buy-button/latest/buy-button-storefront.min.js';
  if (window.ShopifyBuy) {
    if (window.ShopifyBuy.UI) {
      ShopifyBuyInit();
    } else {
      loadScript();
    }
  } else {
    loadScript();
  }
  function loadScript() {
    var script = document.createElement('script');
    script.async = true;
    script.src = scriptURL;
    (document.getElementsByTagName('head')[0] || document.getElementsByTagName('body')[0]).appendChild(script);
    script.onload = ShopifyBuyInit;
  }
  function ShopifyBuyInit() {
    var client = ShopifyBuy.buildClient({
      domain: 'bachelder-terroirs.myshopify.com',
      storefrontAccessToken: '617a35758b99fabcae444cdb5cba9be4',
    });
    ShopifyBuy.UI.onReady(client).then(function (ui) {
      ui.createComponent('collection', {
        id: '164215226445',
        node: document.getElementById('collection-component-1595510427059'),
        moneyFormat: '%24%7B%7Bamount%7D%7D',
        options: {
  "product": {
    "styles": {
      "product": {
        "@media (min-width: 601px)": {
          "max-width": "calc(25% - 20px)",
          "margin-left": "20px",
          "margin-bottom": "50px",
          "width": "calc(25% - 20px)"
        },
        "img": {
          "height": "calc(100% - 15px)",
          "position": "absolute",
          "left": "0",
          "right": "0",
          "top": "0"
        },
        "imgWrapper": {
          "padding-top": "calc(75% + 15px)",
          "position": "relative",
          "height": "0"
        }
      },
      "button": {
        "font-size": "14px",
        "padding-top": "15px",
        "padding-bottom": "15px"
      },
      "quantityInput": {
        "font-size": "14px",
        "padding-top": "15px",
        "padding-bottom": "15px"
      }
    },
    "buttonDestination": "modal",
    "contents": {
      "options": false
    },
    "text": {
      "button": "View product"
    }
  },
  "productSet": {
    "styles": {
      "products": {
        "@media (min-width: 601px)": {
          "margin-left": "-20px"
        }
      }
    }
  },
  "modalProduct": {
    "contents": {
      "img": false,
      "imgWithCarousel": true,
      "button": false,
      "buttonWithQuantity": true
    },
    "styles": {
      "product": {
        "@media (min-width: 601px)": {
          "max-width": "100%",
          "margin-left": "0px",
          "margin-bottom": "0px"
        }
      },
      "button": {
        "font-size": "14px",
        "padding-top": "15px",
        "padding-bottom": "15px"
      },
      "quantityInput": {
        "font-size": "14px",
        "padding-top": "15px",
        "padding-bottom": "15px"
      }
    },
    "text": {
      "button": "Add to cart"
    }
  },
  "cart": {
    "styles": {
      "button": {
        "font-size": "14px",
        "padding-top": "15px",
        "padding-bottom": "15px"
      }
    },
    "text": {
      "total": "Subtotal",
      "empty": "Your cart is empty",
      "button": "Checkout",
      "noteDescription": "Special Instructions"
    }
  },
  "toggle": {
    "styles": {
      "count": {
        "font-size": "14px"
      }
    }
  }
},
      });
    });
  }
})();
/*]]>*/
</script>