Parse JSON in jquery

Question

I'm trying to parse the following json line in jquery:

[{
   "pk": 19,
   "model": "films.movies",
   "fields": {
       "length": "92",
       "name": "Beetle Juice",
       "actor": "Keaton", 
       "img_set": [{
             "pk": 42,
             "model": "films.img",
             "fields": {
                 "uploaded": "2010-10-08 21:44:30",
                 "f_movie": 19,
                 "url_med": "http://www.mondial-infos.fr/wp-content/uploads/2009/10/Beetlejuice.jpg"}
             }]
       }
},{
   "pk": 20,
   "model": "films.movies",
   "fields": {
      "length": "126",
      "name": "Batman",
      "actor": "Keaton", 
      "img_set": [{
            "pk": 43, 
            "model": "films.img",
            "fields": {
                  "uploaded": "2010-10-08 21:44:54",
                  "f_movie": 20, 
                  "url_med": "http://bruehoyt.com/superheroes/DC/batman/bruce/batmankeaton3.jpg"}
            }]
      }
}]

I can't access anything after img_set though. What am I missing? Is this valid json?

I am attempting the following:

$.getJSON('/films/feeds/movie-by-actor/Keaton/',function(data) {
    $.each(data, function(i, movie) {

        alert(movie.fields.name);
        alert(movie.fields.img_set[0].pk);

    });
});

The first alert works. The second does not.

In addition, though I don't know that it matters, this is jquery within a django template.

It's valid JSON. Do you mean you can't access any of the properties in the objects in the img_set array, or you can't access the second element in the main array? Code that demonstrates the problem you're having would help. — Ian Henry
– Ian Henry, Commented Oct 9, 2010 at 18:27
you need alert(movie[0].fields.img_set[0].pk); because move is an array look at Nick's code see how he has it in his — mcgrailm
– mcgrailm, Commented Oct 9, 2010 at 19:00

Nick Craver · Accepted Answer · 2010-10-09 18:26:37Z

1

The confusing part is probably the array of a single element, but img_set is still an array. Make sure you're accessing it with an index first, like this:

.img_set[0].pk
//for example:
data[0].fields.img_set[0].pk

Instead of just:

.img_set.pk

You can give it a try here.

answered Oct 9, 2010 at 18:26

Nick Craver

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1 Comment

Ed. Over a year ago

First, thanks for the link. That's a handy tool. It's weird though that it works there, but it's not working in my code. Same methodology. . .

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