How to parse a JSON object for a string

Question

I have a JSON object

{
    "data": [{
        "user_id":"1",
        "user_name":"test",
        "user_phone":"2147483647",
        "user_email":"[email protected]"
    }]
}

and a jQuery loop function

$.each(responseData, function(index, ProfileData) {
    profiles.push(
        application.getModel("Profile", [ ProfileData.user_id, ProfileData.user_name, ProfileData.user_phone, ProfileData.user_email ] )
    );
});

But when the JSON object becomes this

{
    "data": [{
        "firm_id":"1",
        "firm_name":"Firm",
        "firm_phone":"2147483647",
        "firm_email":"[email protected]"
    }]
}

Then I want to check whether the JSON data has user or firm extensions, and also need to use this in the push() instead.

application.getModel( "Profile", [ ProfileData.user_id, ProfileData.user_name, ProfileData.user_phone, ProfileData.user_email ] )

David Hedlund · Accepted Answer · 2011-12-14 10:26:45Z

1

You can check for the existence of a property inside an object like so:

if('user_id' in ProfileData)

So your solution might look like this:

$.each(responseData, function(index, ProfileData) {
    if('user_id' in ProfileData) {
        profiles.push(
            application.getModel("Profile", [ ProfileData.user_id, ProfileData.user_name, ProfileData.user_phone, ProfileData.user_email ] );
        );
     } else {
        profiles.push(
            application.getModel("Profile", [ ProfileData.firm_id, ProfileData.firm_name, ProfileData.firm_phone, ProfileData.firm_email ] );
        );
     }
});

Another approach would be to coalesce the different properties, and use whichever one is defined:

$.each(responseData, function(index, ProfileData) {
    profiles.push(
        application.getModel("Profile", [ 
            ProfileData.user_id    || ProfileData.firm_id, 
            ProfileData.user_name  || ProfileData.firm_name, 
            ProfileData.user_phone || ProfileData.firm_phone, 
            ProfileData.user_email || ProfileData.firm_email
        ] );
    );
});

edited Dec 14, 2011 at 10:26

answered Dec 14, 2011 at 10:20

David Hedlund

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3 Comments

graphicdivine Over a year ago

It's a good answer, but regarding your comment, javascript array of javascript objects = JSON.

devnull69 Over a year ago

JSON generally means "JavaScript Object Notation" ... which covers both the object literal notation inside Javascript and the string representation of this object (e.g. using JSON.stringify())

user1066679 Over a year ago

Thank you David for the solution

zxwind · Accepted Answer · 2011-12-14 10:27:03Z

0

I think the problem exists in the way you organize you json data. You might need to split user and firm in json. However, in the case you can not control the format of json, you could check if some data, such as 'user_id', contained in the data object before handling it.

answered Dec 14, 2011 at 10:27

zxwind

201 bronze badge

Comments

Benny Johansson · Accepted Answer · 2011-12-14 10:44:00Z

0

This would be my way of doing it.

var responseData = {
    "data": [{
        "user_id": "1",
        "user_name": "test",
        "user_phone": "2147483647",
        "user_email": "[email protected]"}]
};

$.each(responseData.data, function(index, dataRow) {
    var getModelDataArray = [];

    $.each(dataRow, function(key, profileData){
        getModelDataArray.push(profileData);
    });

    profiles.push(application.getModel("Profile", getModelDataArray));
});

To be able to use this method, you need to know what data you can expect to get from the server. Otherwise you might end up using getModel() with an incorrect getModelDataArray. This code can be found in a fiddle here.

answered Dec 14, 2011 at 10:44

Benny Johansson

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