Confirm box in CodeIgniter anchor link to delete r

问题:

I am using the following code to delete a record from a database. But I am facing a problem: when I click on "cancel" in the confirm box then it deletes the record. If I click cancel it returns false but how does it delete the record?

What am doing wrong?

Javascript code:

function ConfirmDialog() {
  var x=confirm("Are you sure to delete record?")
  if (x) {
    return true;
  } else {
    return false;
  }
}

PHP code in view:

<?php
  echo anchor('user/deleteuser/'.$row->id, 'Delete', array('class'=>'delete', 'onclick'=>"return ConfirmDialog();"));
?>

回答1:

Try This:

<a href="javascript:void(0);" onclick="delete(<?php echo $row->id;?>);">Delete</a>

and use this in your script:

<script type="text/javascript">
    var url="<?php echo base_url();?>";
    function delete(id){
       var r=confirm("Do you want to delete this?")
        if (r==true)
          window.location = url+"user/deleteuser/"+id;
        else
          return false;
        } 
</script>

回答2:

Everything in one line

<?=anchor("user/deleteuser/".$row->id,"Delete",array('onclick' => "return confirm('Do you want delete this record')"))?>

回答3:

Are you getting any Javascript errors in the console? I suspect that some other Javascript may be interfering. This simple test page works fine:

<?php echo anchor('user/deleteuser/'.$row->id, 'Delete', array('class'=>'delete', 'onclick'=>"return confirmDialog();")); ?>

<script>
function confirmDialog() {
    return confirm("Are you sure you want to delete this record?")
}
</script>

回答4:

I use This in my code

<a href='<?php site_url('controler/function/$id');?>' onClick='javascript:return confirm(\"Are you sure to Delete?\")'>Delete</a>

回答5:

Try this

<a href="javascript:;" onclick="return isconfirm('<?php echo site_url('user/deleteuser/'.$row->id); ?>');">Delete</a>

Then your function will be like:

function isconfirm(url_val){
    alert(url_val);
    if(confirm('Are you sure you wanna delete this ?') == false)
    {
        return false;
    }
    else
    {
        location.href=url_val;
    }

回答6:

In your View:

<?= anchor("admin/delete_article/{$article->id}", 'Test', ['name'=>'submit', 'value'=>'Delete', 'class'=>'btn btn-danger', 'onclick'=>'return confirm()']);
?>

OR

<?=
form_open('admin/delete_article'),
form_hidden('article_id', $article->id),
form_submit(['name'=>'submit', 'value'=>'Delete', 'class'=>'btn btn-danger', 'onclick'=>'return confirm()']),
form_close();
?>

JavaScript in your View:

<script>
function confirm(){
  job=confirm("Are you sure to delete permanently?");
if(job!=true){
  return false;
  }
}
</script>

See webGautam answer Here

回答7:

 <?= 
      form_open('admin/delete_noti'),
      form_hidden('noti_id',$notification->id),
     form_submit('submit','Delete',array('onclick' => "return confirm('Do you want delete this record')",'class'=>'btn btn-danger float-center')),
      form_close();
    ?>

This is the deletion code. first of all we open form admin is our controller name and delete_noti is the function inside admin controller. We are sending id as hidden form. Here $notification is the variable which is passed through method which is available in controller.