如何在控制器中获取JSON发布数据

Question

I'm working on a CodeIgniter project and I'm newbie to ajax/jquery. I'm using fullCalendar. In my my view I want to post the date of an event and then post it to the controller. Here is my CalendarView.php

$(document).ready(function() {
    $('#calendar').fullCalendar({
        dayClick: function(date, allDay, jsEvent, view) {  
               add_event(date);
        },
        events: 'https://www.google.com/calendar/feeds/myLogin%40gmail.com/public/basic'
    });
});

//Ajax call
function add_event(date) { 
    $.ajax({
            type: 'POST',
            url: '<?php echo site_url()."/welcome/add_event/"; ?>',
                        data:{ eventsJson: JSON.stringify(date) },
                        dataType : "json",
            success: function (response) {
                alert(response);
            }
    });
}​

In my controller, here is what I do:

$date= $this->input->post('data');

Could anyone help me ?

Answer 1

I don't know much about codelgnitor, but the data arrives in object form, you can retrieve the date string as $_POST['data']['eventsJson']

Though I don't think "eventsJson" is a very intuitive name, probably should be called "date" instead ;-)

Answer 2

In the controller to receive the eventsJSON you'd do:

$eventsJSON = json_decode($this->input->post('eventsJSON'), TRUE);

Now $eventsJSON contains an array with your json data. However, if you're only sending back the date you don't need to pass it back as JSON, plus eventsJSON is a bad name for it. In this case you could simply change the data part of the ajax call like:

data: 'date='+date,

And in your controller:

$date = $this->input->post('date');