CODEWITHSUNDEEP
javascriptmongodb
user3280899
user3280899

Reputation: 201

mongodb boolean value stores as a string

var myobj= { school: true, address: false };     
var myArray = [];
        
myArray.push(myobj);

 updateSchool(myArray);

function updateSchool(thisSchool) {
  $.ajax
    ({
    type: "POST",
    url: '/update_school',
    data: {
        school: thisSchool, 
    },
   }
   })

in App.js:

app.post('/update_school', function(request, response) {
   ......
    dbo.collection("School").updateOne({_id: request.session.username},{$set: 
    {School:request.body.school}}, function(err, result){
    ...... }
    }

In mongodb boolean values stores as a string like [{school:"true", address:"false"}]

Could anyone help me how to store as a Boolean values in mongodb. Thanks.

Upvotes: 1

Views: 1133

Answers (1)

Yohanes Gultom
Yohanes Gultom

Reputation: 3842

When you pass an object to in $.ajax() data, it will be converted to URL encoded string (application/x-www-form-urlencoded) which doesn't recognize boolean data type. From the doc:

When data is an object, jQuery generates the data string from the object's key/value pairs unless the processData option is set to false. For example, { a: "bc", d: "e,f" } is converted to the string "a=bc&d=e%2Cf"

So in order to have the boolean saved properly you need to parse it manually in the server or send the payload as JSON (application/json). This is how to do the latter in jquery:

function writeObj(obj) {
  document.write('<pre>' + JSON.stringify(obj, null, 4) + '</pre>');
}

function updateSchool(thisSchool) {
  $.ajax({
      type: "POST",
      // url: '/update_school',
      url: 'https://httpbin.org/anything',
      contentType: 'application/json',
      data: JSON.stringify({
        school: thisSchool,
      }),
    })
    .done(writeObj)
    .fail(writeObj);
}

var myobj = {
  school: true,
  address: false
};
var myArray = [];
myArray.push(myobj);
updateSchool(myArray);
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>

Upvotes: 2

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