“步行" JSON响应并填充表单字段-更有效的方法? [英] "Walk" JSON response and populate form fields -- more efficient approach?

问题描述

我知道有一种更优雅/有效的方法(在php中，我将使用foreach)，但是使用jQuery，我该如何遍历JSON响应的var/val对并使用具有相同ID的表单字段填充JSON响应中的字段名称?

I know there is a far more elegant/efficient way of doing this (in php I would use foreach) but with jQuery how can I walk the var/val pairs of a JSON response and populate form fields with the same id's as the field names in the JSON response?

这是我的JSON响应:

Here is my JSON response:

[{"field":"svendor_name","value":"Vendor Name Inc."},{"field":"svendor_addr1","value":"1234 Vendor Lane."},{"field":"svendor_addr2","value":"Suite 100"},{"field":"svendor_city"
,"value":"Vendorville"},{"field":"svendor_state","value":"CA"},{"field":"svendor_zip","value":"90210"},{"field"
:"svendor_phone","value":"800-555-1234"}]

这是我的jQuery代码，用于填充表单:

Here is my jQuery code for populating the form:

$(document).ready(function()
{
    $('#svendor_name').bind("change", function()
    {
        var svendor = $("#svendor_name").val();
        svendor = svendor.replace(/&/g, '*');
        $.getJSON("get_vendors.php?sname=" + svendor,
        function(data)
        {
            $.each(data,
                function(i, item)
                {
                    if(item.field == "svendor_name")
                    {
                        $("#svendor_name").val(item.value);
                    }
                    else if(item.field == "svendor_addr1")
                    {
                        $("#svendor_addr1").val(item.value);
                    }
                    else if(item.field == "svendor_addr2")
                    {
                        $("#svendor_addr2").val(item.value);
                    }
                    else if(item.field == "svendor_city")
                    {
                        $("#svendor_city").val(item.value);
                    }
                    else if(item.field == "svendor_state")
                    {
                        $("#svendor_state").val(item.value);
                    }
                    else if(item.field == "svendor_zip")
                    {
                        $("#svendor_zip").val(item.value);
                    }
                    else if(item.field == "svendor_phone")
                    {
                        $("#svendor_phone").val(item.value);
                    }
                    else if(item.field == "svendor_id")
                    {
                        $("#svendor_id").val(item.value);
                    }
            });
        });
    });
});

这一切都很好，但是我真的想避免所有的if/else语句，而只是使用从getJSON方法返回的数据来确定哪些字段填充了什么值.什么是更清洁/更有效的方法?

That all works fine and good but I really want to avoid all the if/else statements and just use the data coming back from the getJSON method to determine what fields get populated with what values. What is a cleaner/more effective approach to this?

-尼古拉斯

推荐答案

您可以通过将$ .each替换为以下内容来摆脱所有"if"语句:

You can get rid of all "if" statements by replacing your $.each with this:

$.each(data, function(i, item){
  $("#"+item.field).val(item.value);
});

这篇关于“步行" JSON响应并填充表单字段-更有效的方法?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！