Passing an array of JSON objects to laravel

Question

So I have an array containing many JSON objects, This is what it shows in console.log if i output my array:

{"data" :[{"line":"1","band":"X","val":"0"},{"line":"1","band":"A","val":"6461"},{"line":"1","band":"B","val":"6896"},{"line":"1","band":"C","val":"5826"},{"line":"1","band":"D","val":"3704"},{"line":"1","band":"E","val":"2141"},{"line":"1","band":"F","val":"1198"},{"line":"1","band":"G","val":"682"},{"line":"1","band":"H","val":"70"},{"line":"2","band":"X","val":"0"},{"line":"2","band":"A","val":"87"},{"line":"2","band":"B","val":"65"},{"line":"2","band":"C","val":"48"},{"line":"2","band":"D","val":"35"},{"line":"2","band":"E","val":"12"},{"line":"2","band":"F","val":"14"},{"line":"2","band":"G","val":"4"},{"line":"2","band":"H","val":"0"},{"line":"3","band":"X","val":"0"},{"line":"3","band":"A","val":"0"},{"line":"3","band":"B","val":"0"},{"line":"3","band":"C","val":"0"},{"line":"3","band":"D","val":"0"},{"line":"3","band":"E","val":"0"},{"line":"3","band":"F","val":"0"},{"line":"3","band":"G","val":"0"},{"line":"3","band":"H","val":"0"}]}

returnObj is outputted above. This is how i build the array to post back to laravel

$('table tr td input').each(function()
{               
    Obj = 
    {           
        line : $(this).parent().attr('line'),
        band : $(this).parent().attr('band'),
        val : $(this).val()
    }

    returnObj.push(Obj);

});

returnObject =  '{"data" :' + JSON.stringify(returnObj) +'}';
console.log(returnObject);

This is my ajax on the page:

$.ajax({ 
type: "POST", 
url: "magic/whatif", 
data : returnObject
}) 
.done(function(response) 
{ 
    alert(response); 
});

There is no problem with my routes or logic, I simply print_r or echo the data that was passed in as the response so i can see what laravel does with it.

$data = Input::all(); 
print_r($data);

The problem is laravel can not handle the array of objects so it sends back this:

Array ( [undefined] => )

There are many solutions and I had it working when you just pass a single JSON object to laravel but i need to pass an array containing many JSON objects to laravel from the view.

You need to stringify the object before you send it e.g. data: { returnObject: JSON.stringify(returnObject) }. It looks like you're using php, so you should be able to get the data with json_decode($_GET['returnObject'], true). The laravel syntax seems to be Input::get('returnObject'); — Johan
– Johan, Commented Jun 9, 2014 at 14:53

The Alpha · Accepted Answer · 2014-06-09 17:29:58Z

1

Change following line:

returnObject =  '{"data" :' + JSON.stringify(returnObj) +'}';

To this:

returnObject =  { returnObj : returnObj };

You may access that data using:

$data = Input::get('returnObj');

Output (Dump and Die):

dd($data);

answered Jun 9, 2014 at 17:29

The Alpha

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