Javascript 如何从元素获取JSON路径
我实现了一个递归javascript函数,通过读取JSON模式在svg中绘制以下结构,如下所示 有没有办法确定所选节点的JSON路径?比如,当用户点击一个节点时(比如说Javascript 如何从元素获取JSON路径,javascript,json,d3.js,svg,backbone.js,Javascript,Json,D3.js,Svg,Backbone.js,我实现了一个递归javascript函数,通过读取JSON模式在svg中绘制以下结构,如下所示 有没有办法确定所选节点的JSON路径?比如,当用户点击一个节点时(比如说country:string),有没有办法返回JSON路径(比如person.address.country) 更新:我正在使用主干模型,因此我认为解决方案是跟踪并添加JSON路径作为节点的属性,以供以后使用。我正在寻找其他直接的方法 { "title": "person", "type": "object", "pr
country:string
),有没有办法返回JSON路径(比如person.address.country
)
更新:我正在使用主干模型,因此我认为解决方案是跟踪并添加JSON路径作为节点的属性,以供以后使用。我正在寻找其他直接的方法
{
"title": "person",
"type": "object",
"properties": {
"first name": { "type": "string" },
"last name": { "type": "string" },
"age":{ "type":"number"},
"birthday": { "type": "string", "format": "date-time" },
"address": {
"type": "object",
"properties": {
"street address": {
"type": "object",
"properties": {
"house number": { "type": "number" },
"lane": { "type": "string" }
}
},
"city": { "type": "string" },
"state": { "type": "string" },
"country": { "type" : "string" }
}
},
"phone number": {
"type": "array",
"items": {
"type": "object",
"properties": {
"location": {
"type": "string"
},
"code": {
"type": "number"
}
},
"required": [
"location",
"code"
]
}
},
"children": {
"type": "array",
"items": {
"type": "string"
}
},
"nickname":{"type":"string"}
}
}
递归代码(主干函数)如下所示:
//initiate
var title = data.title || "Root";
var count = this.traverseJSONSchema(data, title, 0, 0, this.get('tempParent'));
//function
traverseJSONSchema: function (root, rootName, level, rank, resultPane) {
var height = this.nodeHeight,
width = this.containerWidth,
margin = width / 6,
x = 0,
overhead = rank * margin,
y = level * height;
var tempParent = resultPane.append("g").attr("class", "nested-group");
if (root.type === "object") {
if (rootName !== "") {
var nodeText = rootName + ":" + root.type;
var node = new DataMapper.Models.Node({parent: tempParent, text: nodeText, x: x, y: y, type: this.get('type'), category: "object", height: height, width: width});
node.drawContainerNode(overhead);
rank++;
level++;
}
var nestedParent = tempParent.append("g").attr("class", "nested-group");
var keys = root.properties; //select PROPERTIES
for (var i = 0; i < Object.keys(keys).length; i++) { //traverse through each PROPERTY of the object
var keyName = Object.keys(keys)[i];
var key = keys[keyName];
level = this.traverseJSONSchema(key, keyName, level, rank, tempParent);
}
} else if (root.type === "array") {
var keys = root.items; //select ITEMS
if (rootName !== "") {
var nodeText = rootName + ":" + root.type + "[" + keys.type + "]";
var node = new DataMapper.Models.Node({parent: tempParent, text: nodeText, x: x, y: y, type: this.get('type'), category: "array", height: height, width: width});
node.drawContainerNode(overhead);
rank++;
level++;
}
level = this.traverseJSONSchema(keys, "", level, rank, tempParent); //recurse through the items of array
} else if (["string", "integer", "number", "boolean"].indexOf(root.type) > -1) { //when the type is a primitive
tempParent.classed("nested-group", false);
if (rootName !== "") {
var nodeText = rootName + ":" + root.type;
var node = new DataMapper.Models.Node({parent: tempParent, text: nodeText, x: x, y: y, type: this.get('type'), category: root.type, height: height, width: width});
node.drawContainerNode(overhead);
rank++;
level++;
}
}
return level;
}
//启动
var title=data.title | |“根”;
var count=this.traverseJSONSchema(数据、标题、0、0、this.get('tempParent');
//作用
traverseJSONSchema:函数(根、根名称、级别、等级、结果平面){
var height=this.nodeHeight,
宽度=此.containerWidth,
边距=宽度/6,
x=0,
管理费用=排名*利润,
y=标高*高度;
var tempParent=resultPane.append(“g”).attr(“类”,“嵌套组”);
if(root.type==“对象”){
if(rootName!==“”){
var nodeText=rootName+“:”+root.type;
var node=newdatamapper.Models.node({parent:tempParent,text:nodeText,x:x,y:y,type:this.get('type'),category:'object',height:height,width:width});
node.drawContainerNode(开销);
排名++;
级别++;
}
var nestedParent=tempParent.append(“g”).attr(“类”、“嵌套组”);
var keys=root.properties;//选择属性
对于(var i=0;i-1){//当类型为基元时
tempParent.classed(“嵌套组”,false);
if(rootName!==“”){
var nodeText=rootName+“:”+root.type;
var node=new DataMapper.Models.node({parent:tempParent,text:nodeText,x:x,y:y,type:this.get('type'),category:root.type,height:height,width:width});
node.drawContainerNode(开销);
排名++;
级别++;
}
}
回报水平;
}
您可以对路径进行特殊处理
函数getPath(对象,搜索){
功能iter(o,p){
返回Object.keys(o).some(函数(k){
if(k==key&&o[k]&&o[k]。type==value){
路径=p.concat(k).join('.');
返回true;
}
if(o[k]!==null&&typeof o[k]==='object'){
返回iter(o[k],
k=='properties'&&!o.title?
p:
p、 concat(k==“属性”&&o.title?o.title:k)
);
}
});
}
var parts=search.split(“:”),
键=零件[0],
值=零件[1],
路径
国际热核实验堆(对象,[]);
返回路径;
}
var数据={title:“person”,type:“object”,properties:{“first name”:{type:“string”},“last name”:{type:“string”},年龄:{type:“number”},生日:{type:“string”,格式:“date time”},地址:{type:“object”,属性:{“street address”:{type:“object”,属性:{“house number”:{type:“number”},lane:{type:“string”}}},城市:{type:“string”},州:{type:“string”},国家:{type:“string”},电话号码:{type:“array”,项目:{type:“object”,属性:{location:{type:{type:“string”},代码:{type:“number”},必需:[“location”,“code”]},子项:{type:“array”,项目:{type:“string”},昵称:{type:“string:”" } } };
log(getPath(数据,'country:string')代码>
.as console wrapper{max height:100%!important;top:0;}
您可以对路径进行特殊处理
函数getPath(对象,搜索){
功能iter(o,p){
返回Object.keys(o).some(函数(k){
if(k==key&&o[k]&&o[k]。type==value){
路径=p.concat(k).join('.');
返回true;
}
if(o[k]!==null&&typeof o[k]==='object'){
返回iter(o[k],
k=='properties'&&!o.title?
p:
p、 concat(k==‘属性’&