call controller from javascript on view using codeigniter

Question

hey guys i am facing trouble in calling controller method from javascript pls help . .

my view is

<script type="text/javascript">
    function kccbranchselect()
    {
        $.ajax({
        type : 'POST',
        data : 'addreceiptkccbranchid='+ $('#addreceiptkccbranch').val(),
        url : '<?php echo base_url();?>index.php/ctl_dbcont/getmembersbybranch',
        success :   function(data){
                        $('#addreceiptddsmember').val(data);
                    }
        });
    }
</script>
<select id="addreceiptkccbranch" name="addreceiptkccbranch" onChange="kccbranchselect();" tabindex="1" >
    <option value="">--SELECT--</option>
    <?php foreach($branchlist as $value):?>
        <option value="<?=$value['branch_id']?>"><?=$value['branch_name']?></option>
    <?php endforeach; ?>
</select>
<select id="addreceiptddsmember" name="addreceiptddsmember" tabindex="1">
    <?php foreach($member_by_branch as $row) { ?>
        <option value = ""></option>
    <?php } ?>
</select>

my controller is

function getmembersbybranch()
{
    $this->load->model('mod_user');
    $addreceiptkccbranchid      =   $_POST['addreceiptkccbranchid'];
    $data['member_by_branch']   =   $this->mod_user->member_receipt_dds($addreceiptkccbranchid);
    redirect('view_addreceipts');
}

i am generating a dropdown by selecting another dropdown option . . i cant access the controller method by putting url : '<?php echo base_url();?>index.php/ctl_dbcont/getmembersbybranch', in ajax ,why ??

that not a controller but only a function inside class controller. — Jhonathan H.
– Jhonathan H., Commented Apr 3, 2013 at 7:03
yeah its right . . how can i call this function from javascript @Kaii — Jay
– Jay, Commented Apr 3, 2013 at 7:06
You are already calling it! But what is redirecting doing in ajax code? — itachi
– itachi, Commented Apr 3, 2013 at 7:10
my problem is when i select an option from first select the onchange call javascript function and from this function i call controller at this time the controller function does not access — Jay
– Jay, Commented Apr 3, 2013 at 7:38

Muhammad Raheel · Accepted Answer · 2013-04-03 07:25:01Z

1

Here is a simple solution for this to work

AJAX Request

$.ajax({
    type : 'POST',
    data : 'addreceiptkccbranchid='+ $('#addreceiptkccbranch').val(),
    url : '<?php echo site_url("ctl_dbcont/getmembersbybranch");?>',
    success :   function(data){
                $('#addreceiptddsmember').val(data);
    }
});

Controller

function getmembersbybranch()
{
    $this->load->model('mod_user');
    $addreceiptkccbranchid      =   $_POST['addreceiptkccbranchid'];
    $data['member_by_branch']   =   $this->mod_user->member_receipt_dds($addreceiptkccbranchid);
    $this->load->view('member_by_branch',$data);
}

View

<?php
if($member_by_branch){
    foreach($branchlist as $value):
    ?>
    <option value="<?=$value['member_id']?>"><?=$value['member_name']?></option>
    <?php 
    endforeach;
}
?>

Redirect will not work. Create a simple view for dropdown oprions.

answered Apr 3, 2013 at 7:25

Muhammad Raheel

19.9k7 gold badges69 silver badges106 bronze badges

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5 Comments

Jay Over a year ago

the second dropdown option is on same view on which first drop down,that means when i select a value from first drop down this page should load again. . .

Jay Over a year ago

can i call same view in $this->load->view('//same view here',$data); or should i make a new view @raheel shan

Jay Over a year ago

this is nice answer but by url : '<?php echo site_url("ctl_dbcont/getmembersbybranch");?>',i can not go to getmembersbybranch

Muhammad Raheel Over a year ago

well @Jay it was only example you can load same view and use controller method according to your requirement

Jay Over a year ago

i want 'addreceiptkccbranchid='+ $('#addreceiptkccbranch').val(), send to url : '<?php echo site_url("ctl_dbcont/getmembersbybranch");?>', but not work . .

Adeel · Accepted Answer · 2013-04-03 07:10:04Z

0

The redirect statement here is invalid, as it is an AJAX request. You have to send html or json response from server, which you can process at client side. e.g.

$data['member_by_branch']=$this->mod_user->member_receipt_dds($addreceiptkccbranchid);
echo $data['member_by_branch']; //assuming its html

so on client side, you just have to use this statment in you callback method.

$('#addreceiptddsmember').html(data);

answered Apr 3, 2013 at 7:10

Adeel

19.3k4 gold badges48 silver badges60 bronze badges

Comments

sandip · Accepted Answer · 2013-04-03 10:44:53Z

0

try this:

Replace your js function by this function:

$("#addreceiptddsmember").live("change",function(){

   var htmlString="";
     $.ajax({
        type:'POST',
        data:'addreceiptkccbranchid='+ $('#addreceiptkccbranch').val(),
        url:'ctl_dbcont/getmembersbybranch',
        datatype:'application/json',
        success:function(data){
          $.each(data,function(i){
             htmlString+="<option  value='"+data[i].branch_id+"'>"+ data[i].branch_name +"</option>"
          });
          $('#addreceiptddsmember').html(htmlString);
     }
  });
});

in this you have to make htmlsting and append to selected list using jquery it won't be available in php foreach as you were doing using in the view code.

also remove

redirect('view_addreceipts');

& replace it by:

echo json_encode($data);
exit;

in the controller

hope it help!

edited Apr 3, 2013 at 10:44

answered Apr 3, 2013 at 8:10

sandip

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5 Comments

Jay Over a year ago

still i can't access the methoe from url:url:'ctl_dbcont/getmembersbybranch',

Jay Over a year ago

ajax not work for me . . $('#addreceiptkccbranch').val(), this data does not pass to url:url:'ctl_dbcont/getmembersbybranch',

sandip Over a year ago

@Jay I m sorry it was a typo now test this one and add alert("success") in the success function of ajax

Jay Over a year ago

yeah alert works then why data is not pass to that method . . @sandip

sandip Over a year ago

@Jay do you have firebug extension for firefox, check whether the data is getting passed or not, and if the data is not coming from the controller function then there is something wrong with database query etc

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