自动填充文字字段取决于Grails

时间:2016-08-08 08:22:05

标签: jquery grails

我的OrderItem域中有一个文本字段Price。

价格应根据所选产品自动更改/自动填充

enter image description here

如何使用Jquery进行此操作?到目前为止,我所做的是

 <script type="text/javascript">
        function loadProduct(id) {
            $.ajax({
                type: "POST",
                url: "${resource(dir:'product/get')}/" + id,
                data: "{}",
                contentType: "application/json; charset=utf-8",
                dataType: "json",
                async: true,
                cache: false,
                success: function (result) {
                    var div = $('#posthere')[0];
                    if (result.error)
                        alert(result.error.message);
                    else {
                        $('#price')[0].value = result.product.price;
                        compute();
                    }
                    //$('#dialog').dialog('open');
                },
                error: function (XMLHttpRequest, textStatus, errorThrown) {
                    var div = $('#posthere')[0];
                    div.innerHTML = textStatus + " " + errorThrown;
                    $('#dialog').dialog('open');
                }
            });
        }
        function compute(){
            var price = parseFloat($('#price')[0].value);
            var quantity = parseInt($('#quantity')[0].value);
            $('#totalAmount')[0].value = price * quantity
        }
        $(function(){   // on load
            var price = $('#price');
            price.on('change', function() {
                compute();
            });
            $('#quantity').on('change', function() {
                compute();
            });
            $('#product').on('change', function() {
                loadProduct($('#product')[0].value);
            });
            if (price[0].value == '')
                loadProduct($('#price')[0].value);
            else
                compute();
        });
    </script>

我不确定上面是否有错误,请帮我解决?计算功能正常,但每当我选择产品时,价格字段都不会改变

OrderItem域名:

int orderNumber
int quantity = 1
Customer customers
Product product
BigDecimal  price
BigDecimal  totalAmount = 0

static constraints = {
    orderNumber min:1, blank: false
    quantity            min: 1, blank: false
    price       min: 1.00, scale: 2, maxSize: 19 , blank: false
    customers()
    product()
    totalAmount min:0.00, blank: false
}

static mapping = {
    totalAmount formula: 'QUANTITY * PRICE'
}
String toString() {
    return orderNumber
}

产品领域:

 static hasMany = [orderitem: OrderItem]
String productCode
String productName
int quantityInStock
BigDecimal price
static constraints = {
    productCode blank: false, unique: true
    productName blank: false
    quantityInStock blank: false, min: 1
    price blank: false, min: 0.01
}
public String toString(){
    return productName
}
我在这里错过了什么吗?任何帮助将不胜感激。谢谢

       OST http://localhost:9001/static/product/get/ 405 (Method Not Allowed)
send @ jquery-2.1.3.js?compile=false:8625
ajax @ jquery-2.1.3.js?compile=false:8161
loadProduct @ create:43
(anonymous function) @ create:94
i @ jquery-2.2.0.min.js?compile=false:2
fireWith @ jquery-2.2.0.min.js?compile=false:2
ready @ jquery-2.2.0.min.js?compile=false:2
J @ jquery-2.2.0.min.js?compile=false:2
    create:72 
Uncaught TypeError: Cannot set property 'innerHTML' of undefined
error @ create:72
fire @ jquery-2.1.3.js?compile=false:3094
fireWith @ jquery-2.1.3.js?compile=false:3206
done @ jquery-2.1.3.js?compile=false:8261
(anonymous function) @ jquery-2.1.3.js?compile=false:8600

以上代码适用于谷歌开发者工具中输出的控制台错误

1 个答案:

答案 0 :(得分:0)

这个位看起来不对,你没有在它周围放置足够的括号

 if (result.error)
                        alert(result.error.message);
                    else {
                        $('#price')[0].value = result.product.price;
                        compute();
                    }


 if (result.error) {
                        alert(result.error.message);
                    } else {
                          console.log('---we have '+result.product.price);
                        $('#price')[0].value = result.product.price;
                        compute();
                    }

您的浏览器(Chrome)上的开发人员控制台是您最好的朋友 - 该位应该抛出某种形式的java脚本错误

我添加了一个console.log,如果您使用更新的代码

进入该段,则应显示该内容
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