Ajax成功功能未运行

Question

I have the following Ajax request which I make. Currently if the json response is true then the success callback runs. But if the json response is false then the success callback isn't run, even if the Ajax request itself is successfully made.

$.ajax({
    url: "http://testdomain.com/wp-admin/admin-ajax.php",
    type: "POST",
    dataType: "json",
    cache: false,
    data: {
        action: 'check_username',
        user: user_email
    },
    success: function(json) {
        if (json.user_exists == true) {
            $.ajax({
                url: "http://testdomain.com/wp-admin/admin-ajax.php",
                type: "POST",
                dataType: "json",
                cache: false,
                data: {
                    action: 'auto_login',
                    user: user_email
                },
                success: function(json) {
                    $('#aux_lightbox_overlay').fadeOut();
                }
            });
        }
        if (json.user_exists == false) {
            $.ajax({
                url: "http://testdomain.com/wp-admin/admin-ajax.php",
                type: "POST",
                dataType: "json",
                cache: false,
                data: {
                    action: 'auto_register',
                    user: user_email
                },
                success: function(json) {
                    $('#aux_lightbox_overlay').fadeOut();
                }
            });
        }
    }
});

So my question is, how do I get the callback to run even if the response is false ?

Thanks

Answer 1

Maybe you need to use complete instead success and error .

$.ajax({
    url: "http://testdomain.com/wp-admin/admin-ajax.php",
    type: "POST",
    dataType: "json",
    cache: false,
    data: {
        action: 'check_username',
        user: user_email
    },
    complete: function(json) {
        if (json.user_exists == true) {
            $.ajax({
                url: "http://testdomain.com/wp-admin/admin-ajax.php",
                type: "POST",
                dataType: "json",
                cache: false,
                data: {
                    action: 'auto_login',
                    user: user_email
                },
                success: function(json) {
                    $('#aux_lightbox_overlay').fadeOut();
                }
            });
        }
        if (json.user_exists == false) {
            $.ajax({
                url: "http://testdomain.com/wp-admin/admin-ajax.php",
                type: "POST",
                dataType: "json",
                cache: false,
                data: {
                    action: 'auto_register',
                    user: user_email
                },
                success: function(json) {
                    $('#aux_lightbox_overlay').fadeOut();
                }
            });
        }
    }
});

Answer 2

Are you sure that when the user does not exist, json.user_exists is indeed equal to false ? If I understand you correctly, the if (json.user_exists == false){...} statement is not triggered, so there is something weird there.

For more robust code, you could change

if (json.user_exists == true) {
  // ...
}
if (json.user_exists == false){
  // ...
}

into

if (json.user_exists == true) {
  // ...
}
else {
  // ...
}