Find and update nested JSON value

Question

I need to find and update json object from nested json object. Consider the original json object.

  var originaldata=[
    {
    "sc_iden": "331",
    "sc_name": "Scene 1",
    "sc_type": "",
    "sc_status": "Draft",
    "sc_owner": "",
    "children": [
        {
            "sc_iden": "332",
            "Sc_name": "Scene1.1",
            "sc_type": "",
            "sc_status": "Draft",
            "sc_priority": "3",
            "sc_owner": "",
            "children": []
        }
    ]
},
{
    "sc_iden": "334",
    "sc_name": "Scene2",
    "sc_type": "",
    "sc_status": "Draft",
    "sc_priority": "2",
    "sc_owner": "",
    "children": []
}]

Find the below findUpdate record from originaldata(JSON) and update their values.

    var findUpdate =  {
            "sc_iden": "332",
            "Sc_name": "My Scene",
            "sc_type": "New Type",
            "sc_status": "Opened",
            "sc_priority": "5",
            "sc_owner": "Admin",
            "children": []
        }

Based on sc_iden ="332" search the originaldata and update new values(findUpdate) by using jquery or angularjs.

I tired with following link but here they update single value only but i need to update all the records. stackoverflow.com/questions/17993296/… — ipln
– ipln, Commented Jun 24, 2015 at 12:28

Ana F · Accepted Answer · 2015-06-24 13:37:59Z

1

Have a look on this plunker .

var update = function(jsonArray, updatedJson) {

  if (jsonArray.length !== 0) {
    jsonArray.forEach(function(obj) {
      if (obj.sc_iden === updatedJson.sc_iden) {
        obj.sc_name = updatedJson.sc_name;
        //....update
      } else {
        //try to update children
        update(obj.children, updatedJson);
      }
    });
  }
};

It will modify the original data, so keep a copy if you still need that.

answered Jun 24, 2015 at 13:37

Ana F

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Comments

kapantzak · Accepted Answer · 2015-06-24 12:32:22Z

Check the console output (in the example only Sc_name is changed):

var originaldata=[
    {
    "sc_iden": "331",
    "sc_name": "Scene 1",
    "sc_type": "",
    "sc_status": "Draft",
    "sc_owner": "",
    "children": [
        {
            "sc_iden": "332",
            "Sc_name": "Scene1.1",
            "sc_type": "",
            "sc_status": "Draft",
            "sc_priority": "3",
            "sc_owner": "",
            "children": []
        }
    ]
},
{
    "sc_iden": "334",
    "sc_name": "Scene2",
    "sc_type": "",
    "sc_status": "Draft",
    "sc_priority": "2",
    "sc_owner": "",
    "children": []
}];

var findUpdate =  {
            "sc_iden": "332",
            "Sc_name": "My Scene",
            "sc_type": "New Type",
            "sc_status": "Opened",
            "sc_priority": "5",
            "sc_owner": "Admin",
            "children": []
        }

for (i in originaldata) {
  var obj = originaldata[i];
  if (obj['sc_iden'] == '332') {
    obj['Sc_name'] = findUpdate['Sc_name'];
    //...
  } else {
    for (m in obj['children']) {
      var k = obj['children'][m];
      if (k['sc_iden'] == '332') {
        k['Sc_name'] = findUpdate['Sc_name'];
        //...
      }
    }
  }
}

console.log(originaldata);

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>

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