javascriptフォームドメインとjsonデータの相互作用第1/3ページ
7958 ワード
オブジェクト内の集合属性、オブジェクト内の他のオブジェクト属性を参照することを含みます.
/**
**json
*/
function jsonObjectToForm(form, jsonObject){
for(i = 0, max = form.elements.length; i < max; i++) {
e = form.elements[i];
eName = e.name;
if(eName.indexOf('.') > 0){
dotIndex = eName.indexOf('.');
parentName = eName.substring(0, dotIndex);
childName = eName.substring(dotIndex+1);
// eName， json
eValue = iterValueFromJsonObject(jsonObject, parentName, childName);
}else{
eValue = jsonObject[eName];
}
if(eValue && eValue != "undefined" && eValue != "null"){
switch(e.type){
case 'checkbox':
case 'radio':
if(e.value == eValue){
e.checked = true;
}
break;
case 'hidden':
case 'password':
case 'textarea':
case 'text':
e.value = eValue;
break;
case 'select-one':
case 'select-multiple':
for(j = 0; j < e.options.length; j++){
op = e.options[j];
//alert("eName : " + eName + "; op value : " + op.value + "; eValue : " + eValue);
if(op.value == eValue){
op.selected = true;
}
}
break;
case 'button':
case 'file':
case 'image':
case 'reset':
case 'submit':
default:
}
}
}
}
/**
* json
* 1: a.bs[0].id
* 2: a["bs"][0]["id"]
* json
*/
function formToJsonObject(form){
var jsonObject = {};
for(i = 0, max = form.elements.length; i < max; i++) {
e = form.elements[i];
em = new Array();
if(e.type == 'select-multiple'){
for(j = 0; j < e.options.length; j++){
op = e.options[j];
if(op.selected){
em[em.length] = op.value;
}
}
}
switch(e.type){
case 'checkbox':
case 'radio':
if (!e.checked) { break; }
case 'hidden':
case 'password':
case 'select-one':
case 'select-multiple':
case 'textarea':
case 'text':
eName = e.name;
if(e.type == 'select-multiple'){
eValue = em;
}else{
eValue = e.value.replace(new RegExp('(["\\\\])', 'g'), '\\$1');
}
//
if(eName.indexOf('.') > 0){
dotIndex = eName.indexOf('.');
parentName = eName.substring(0, dotIndex);
childName = eName.substring(dotIndex+1);
// eName， json
iterJsonObject(jsonObject, parentName, childName, eValue);
}else{
jsonObject[eName] = eValue;
}
break;
case 'button':
case 'file':
case 'image':
case 'reset':
case 'submit':
default:
}
}
return jsonObject;
}
/**
* json
*/
function iterJsonObject(jsonObject, parentName, childName, eValue){
//pArrayIndex
pArrayIndex = parentName.indexOf('[');
// ，
if(pArrayIndex < 0){
var child = jsonObject[parentName];
if(!child){
jsonObject[parentName] = {};
}
dotIndex = childName.indexOf('.');
if(dotIndex > 0){
iterJsonObject(jsonObject[parentName], childName.substring(0, dotIndex), childName.substring(dotIndex+1), eValue);
}else{
jsonObject[parentName][childName] = eValue;
}
}else{
pArray = jsonObject[parentName.substring(0, pArrayIndex)];
// js ，
if(!pArray){
jsonObject[parentName.substring(0, pArrayIndex)] = new Array();
}
// ， js
arrayIndex = parentName.substring(pArrayIndex+1, parentName.length-1);
var c = jsonObject[parentName.substring(0, pArrayIndex)][arrayIndex];
if(!c){
jsonObject[parentName.substring(0, pArrayIndex)][arrayIndex] = {};
}
dotIndex = childName.indexOf('.');
if(dotIndex > 0){
iterJsonObject(jsonObject[parentName.substring(0, pArrayIndex)][arrayIndex], childName.substring(0, dotIndex), childName.substring(dotIndex+1), eValue);
}else{
jsonObject[parentName.substring(0, pArrayIndex)][arrayIndex][childName] = eValue;
}
}
}
/**
* json
*/
function iterValueFromJsonObject(jsonObject, parentName, childName){
//pArrayIndex
pArrayIndex = parentName.indexOf('[');
// ，
if(pArrayIndex < 0){
dotIndex = childName.indexOf('.');
if(dotIndex > 0){
return iterValueFromJsonObject(jsonObject[parentName], childName.substring(0, dotIndex), childName.substring(dotIndex+1));
}else{
return jsonObject[parentName][childName]
}
}else{
pArray = jsonObject[parentName.substring(0, pArrayIndex)];
// ， js
arrayIndex = parentName.substring(pArrayIndex+1, parentName.length-1);
var c = jsonObject[parentName.substring(0, pArrayIndex)][arrayIndex];
dotIndex = childName.indexOf('.');
if(dotIndex > 0){
return iterValueFromJsonObject(jsonObject[parentName.substring(0, pArrayIndex)][arrayIndex], childName.substring(0, dotIndex), childName.substring(dotIndex+1));
}else{
return jsonObject[parentName.substring(0, pArrayIndex)][arrayIndex][childName]
}
}
}