Transform and Instance Variable into a JavaScript array of objects

Question

How can i transform this instance variable into JavaScript array of objects

I know there is something that i have to do with

but when i try it. it just completely errors out..

This is what i am getting: (comes out with the Quotes)

@updates = [
  "{'24548_0_load_results': ['1630609','2015-04-07 13:51:03 UTC','7 minutes']}", 
  "{'24548_0_load_results': ['1630610','2015-04-07 13:51:03 UTC','7 minutes']}"
]

Created the above with this:

  @updates = []
  records.each do |r|
    updates << "{ '" + t.search_table_id.to_s + "': " + Search.load_post_result(r, s).to_s + " }"
  end

This is how i need it:

var obj1 = {
    "loads": [
        {'24547_1428357240_load_results' : ['1630607','2015-04-06 18:35:46 UTC','8 minutes']},
        {'24547_1428357240_load_results' : ['1630606','2015-04-06 18:35:47 UTC','8 minutes']}
    ]
};

This is the script that i am tring to run this array of objects thru:

$.each(obj1["loads"], function(k, v){
    $.each(v, function(key, value) {
        alert(key + ": " + value);
    })
});

edit: This is what i have now

var obj1 = {
    "loads": []
};

for (string in <%= @updates1 %>){
    obj1["loads"].push(JSON.parse(string.replace(/'/g,'\"')));
}

$.each(obj1["loads"], function(k, v){
    $.each(v, function(key, value) {
        alert(key + ": " + value);
    })
});

And looks like this in the response:

var obj1 = {
    "loads": []
};

for (string in [&quot;{ '24549_1428420484_load_results': ['1630610','2015-04-07 14:44:37 UTC','44 minutes','Springfield, MO','Dallas, TX','04/07','04/07','Full','Flatbed or Van or Reefer','','53','0.00'] }&quot;, &quot;{ '24549_1428420484_load_results': ['1630609','2015-04-07 13:51:03 UTC','about 2 hours','Springfield, MO','Dallas, TX','04/10','04/11','Full','Flatbed or Van or Reefer','','53','0.00'] }&quot;]){
    obj1["loads"].push(JSON.parse(string.replace(/'/g,'\"')));
}

$.each(obj1["loads"], function(k, v){
    $.each(v, function(key, value) {
        alert(key + ": " + value);
    })
})

;

You should consider using the [Gon](https://github.com/gazay/gon) gem. — pdoherty926, Apr 07 '15 at 14:30
I was going to suggest calling `records.as_json`, but Gon is probably a better answer. — MrTheWalrus, Apr 07 '15 at 14:31

score 1 · Accepted Answer · edited May 23 '17 at 12:22

1

You could do it in javascript like this:

    JSON.parse("YourString".replace(/'/g,'\"'))

Here's a fiddle to demonstrate.

https://jsfiddle.net/ab19ha1o/

You need to replace the single quotes to properly parse JSON, so that's a quick and dirty way to do it :)

Edit: Here's the SO Thread on JSON Parse: jQuery.parseJSON single quote vs double quote

And you would just need to iterate over each string to get the object.

Edit: The full transfer would look something like this:

    for (string in updates){
      obj1["loads"].push(JSON.parse(string.replace(/'/g,'\"')));
    }

edited May 23 '17 at 12:22

Community

1
1

answered Apr 07 '15 at 14:39

WakeskaterX

1,408
9
21

I am still having trouble incorportating this i keep getting the unexpected & error... that is probably because it is converting the double quotes to HTML. – Big Al Ruby Newbie Apr 07 '15 at 15:04
Oh yeah if it's HTML encoding it you'd have to decode it first as well. – WakeskaterX Apr 07 '15 at 15:07
so would string = <%= escape_javascript(@updates) %>; BY the way this is in a js.erb file – Big Al Ruby Newbie Apr 07 '15 at 15:09
Ah, I'd have to see it in the client on what it outputs, I'm not as familiar with ruby. Can you link what that is actually outputting to the client if you do that? It's likely you want to store that in an array and then iterate through each string. – WakeskaterX Apr 07 '15 at 15:16
i added the new info... still getting the & error probably here " – Big Al Ruby Newbie Apr 07 '15 at 15:30
yeah you need to convert the " to " – WakeskaterX Apr 07 '15 at 15:38
Check out this: http://stackoverflow.com/questions/1600526/how-do-i-encode-decode-html-entities-in-ruby – WakeskaterX Apr 07 '15 at 15:39

Transform and Instance Variable into a JavaScript array of objects

1 Answers1