参考以下链接:
https://stackoverflow.com/posts/4391119/revisions
Filter JSON Data with multiple record IDs in jQuery
如果JSON中有分层数据怎么办?我已尝试在该filterStore函数中进行修改但未成功。你能帮帮我吗?
当前的filterStore是这样的:
var filter = {
"brand_id": [1,2,3],
"productname": new RegExp('(.*?)', 'gi'),
"price": new RegExp('.*?', 'gi')
};
function filterStore(dataStore, filter) {
return $(dataStore).filter(function(index, item) {
for( var i in filter ) {
if(filter[i] instanceof Array){
if($.inArray(parseInt(item[i],10),filter[i]) == -1)
return null;
else
continue;
}
if( ! item[i].toString().match( filter[i] ) ) return null;
}
return item;
});
}
但是json的反应是这样的:
[
{
"brandInfo": {
"brand": "Lg",
"productname": "Microwave",
},
"prodInfo": {
"size": "1.5 ltr",
"price": 200,
"color": "black"
},
"Category": "Electronic",
"shop": "Walmart"
}
{
"brandInfo": {
"brand": "Samsung",
"productname": "Microwave",
},
"prodInfo": {
"size": "1.5 ltr",
"price": 250,
"color": "Ivory"
},
"Category": "Electronic",
"shop": "Walmart"
}
{
"brandInfo": {
"brand": "Toshiba",
"productname": "Microwave",
},
"prodInfo": {
"size": "1.6 ltr",
"price": 310,
"color": "Silver"
},
"Category": "Electronic",
"shop": "Walmart"
}
{
"brandInfo": {
"brand": "Hitachi",
"productname": "Microwave",
},
"prodInfo": {
"size": "1.5 ltr",
"price": 280,
"color": "black"
},
"Category": "Electronic",
"shop": "Walmart"
}
]
Joy,你能帮我设置像这样的分层数据的过滤器吗?新功能filterStore?
答案 0 :(得分:0)
首先重写过滤器以反映嵌套结构。
var filter = {
"brandInfo": {
"brand_id": [1,2,3]
},
"prodInfo": {
"productname": new RegExp('(.*?)', 'gi'),
"price": new RegExp('.*?', 'gi')
}
};
现在您可以像这样编写过滤器代码(只需添加一个嵌套循环来循环遍历外部属性,如 brandInfo )。
function filterStore(dataStore, filter) {
return $(dataStore).filter(function(index, item) {
for( var prop in filter ) {
if (item[prop] == null) return null;
for( var i in prop ) {
if (item[prop][i] == null) return null;
if(filter[prop][i] instanceof Array){
if($.inArray(parseInt(item[prop][i],10),filter[prop][i]) == -1) return null;
else continue;
}
if( ! item[prop][i].toString().match( filter[prop][i] ) ) return null;
}
}
return item;
});
}
这应该适用于您的示例中的数据结构。但请记住,此代码假定您的过滤器仅包含二级嵌套属性。对于过滤嵌套属性的更通用的解决方案,您需要将过滤器逻辑放在一个单独的函数中并以递归方式使用它。