Sweet Alert 删除确认带有 href

Question

Im using PHP, and Sweet alert for a delete confirmation. Problem is that it is deleting before showing the sweet alert.

This is my HTML(which is using PHP in it).

<div class="delete"><a onclick="return confirmation()" href="'.URLROOT.'/dashboards/delete_note/'.htmlspecialchars($note->note_id).'/'.$data['table'] .'"><i class="far fa-trash-alt"></i></a></div>

This is my sweet alert

function confirmation() {
swal({
  title: "Are you sure?",
  text: "Once deleted, you will not be able to recover this imaginary file!",
  icon: "warning",
  buttons: true,
  dangerMode: true,
})
.then((willDelete) => {
  if (willDelete) {
    swal("Poof! Your imaginary file has been deleted!", {
      icon: "success",
    });
  } else {
    swal("Your imaginary file is safe!");
  }
});

}

The problem is, its not showing the sweet alert, its just going straight to the URL. Do I need to do a form and prevent submits or something like that?

Answer 1

The problem is that click on anchor element has a default behavior. You could use event.preventDefault() to prevent the redirection and navigate manually based on you logic with window.location.href='url'

<div class="delete"><a onclick="confirmation(event)" href="'.URLROOT.'/dashboards/delete_note/'.htmlspecialchars($note->note_id).'/'.$data['table'] .'"><i class="far fa-trash-alt"></i></a></div>

and in js

function confirmation(ev) {
ev.preventDefault();
var urlToRedirect = ev.currentTarget.getAttribute('href'); //use currentTarget because the click may be on the nested i tag and not a tag causing the href to be empty
console.log(urlToRedirect); // verify if this is the right URL
swal({
  title: "Are you sure?",
  text: "Once deleted, you will not be able to recover this imaginary file!",
  icon: "warning",
  buttons: true,
  dangerMode: true,
})
.then((willDelete) => {
  // redirect with javascript here as per your logic after showing the alert using the urlToRedirect value
  if (willDelete) {
    swal("Poof! Your imaginary file has been deleted!", {
      icon: "success",
    });
  } else {
    swal("Your imaginary file is safe!");
  }
});
}

Answer 2

You can add the value javascript: in the href attribute, like this

<a href = 'javascript:
    swal({
  title: "Delete selected item?",
  text: "Unrecoverable Data",
  icon: "warning",
  buttons: true,
  dangerMode: "true",
})
.then((willDelete) => {
  if (willDelete) {
   swal({ title: "Delete Data Successfully",
 icon: "success"}).then(okay => {
   if (okay) {
    window.location.href = "";
  }
});
    
  } else {
    swal({
    title: "Data Not Deleted",
     icon: "error",
    
    });
  }
});'
class = "btn btn-danger">Delete</a>

Answer 3

Try removing the href from the link and only handle the link when user click confirmed in the SweetAlert script.

<div class="delete"><a onclick="return confirmation()"><i class="far fa-trash-alt"></i></a></div>

In your javascript:

function confirmation() {
swal({
  title: "Are you sure?",
  text: "Once deleted, you will not be able to recover this imaginary file!",
  icon: "warning",
  buttons: true,
  dangerMode: true,
})
.then((willDelete) => {
  if (willDelete) {

    // TODO: Handle your delete url by ajax
    // ...

    swal("Poof! Your imaginary file has been deleted!", {
      icon: "success",
    });
  } else {
    swal("Your imaginary file is safe!");
  }
});