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Javascript callback

Posted on 2013-11-20
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Last Modified: 2013-12-10
Hi

I know this is quite a basic question for anyone who has a good understanding of JavaScript.. I am playing catch up !

so basically.. call backs..

I have a form. The user clicks to edit or add a record. When he clicks update, I am displaying a message confirming the update. I then put them back to the main record list.

My idea was to show the message and then a call back to return to the list. I have got it a little backwards and it's basically showing at the same time..

Here's the code.. Thanks in advance

Main Form
  $.post($("#updateClientform").attr("action"),$("#updateClientform").serialize(),
    function() {
      fnUpdateSuccess('Client',function() {window.location.href = 'clients.php'});
    }
  );

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Functions
function fnUpdateSuccess(fItemName, callback){
  confirmationModal('Information','The '+fItemName+ ' has been succesfully Updated !');
  if (callback) {
    callback();
  }
}
function confirmationModal(fTitle,fBody){
  $('#confirmationModal').modal('show')
  $('#confirmationModal .modal-title').html(fTitle)
  $('#confirmationModal .modal-body').html(fBody)
}

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0
Comment
Question by:maddisoncr
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8 Comments
 
LVL 75

Expert Comment

by:Michel Plungjan
ID: 39665303
I took the liberty to format your question. It was near unreadable.

The answer is dependent on how you call the post.

If in a submit button, you need to prevent the form from being submitted.
$("#form").on("submit",function(e) {
  e.preventdefault();
  $.post($("#updateClientform").attr("action"),$("#updateClientform").serialize(),
      function() {
        fnUpdateSuccess('Client',function() {window.location.href = 'clients.php'});
      }
    );
})

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However I wonder why you would ever want to change the location if you use ajax to update the server.

If you need to reload the page, simply post the form and load the result
0
 

Author Comment

by:maddisoncr
ID: 39665411
Sorry about the formatting and thank you for your comments, i will have a look now
0
 

Author Comment

by:maddisoncr
ID: 39668577
At present. I show a list of clients. The user then selects a client and a new php file is shown. This isn't through ajax.

When the user edits the client and updates it. I send the user back to the clients form. What i also want to do is show a modal box telling them that the update has been carried out. the user then clicks ok to dismiss.

At the moment, everything i've tried seems to load them both at the same time.

Hope that helps
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LVL 75

Expert Comment

by:Michel Plungjan
ID: 39668755
$.post($("#updateClientform IS Ajax!
0
 

Author Comment

by:maddisoncr
ID: 39669095
I meant that I am not loading the new page through the ajax load.
0
 
LVL 75

Expert Comment

by:Michel Plungjan
ID: 39669444
But you are updating something using Ajax, then you load a page using window.location

If you instead just posted the form to the server and returned the new page, you would not have any issues
0
 

Author Comment

by:maddisoncr
ID: 39670047
i understand what you are saying..

when i update the client.. i use a php file called updateclient.php. so is it a case of just using a header to load clients.php ?
0
 
LVL 75

Accepted Solution

by:
Michel Plungjan earned 1500 total points
ID: 39670224
Yes, a location header is enough
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