Preventing Content Changes When Ajax Request Fails: Tips for Error Checking

I was struggling to find the right words for my question --

My issue involves a basic ajax request triggered by a checkbox that sends data to a database.

I want to prevent the checkbox from changing if the ajax request fails. Currently, when the request fails, it doesn't change upon the first click. However, if clicked again, it changes even though the request failed.

Below is the code snippet:

<script type="text/javascript">
    $(document).ready(function(){
        $("#favorite").change(function() { 
            if($(this).is(":checked")) { 
                $.ajax({
                    url: 'favorite.php',
                    type: 'POST',
                    data: { file_id:$(this).attr("name"), strState:"1" },
                    success: function() { // action after successful request
                        $("#favWrap").empty();
                        $("#favWrap").html("<input id='favorite' name='165' type='checkbox' checked/><label></label>");
                    },
                    error:function(){
                        $("#favWrap").empty();
                        $("#favWrap").html("<input id='favorite' name='165' type='checkbox' /><label></label>")
                    }
                });
            } else {
                $.ajax({
                    url: 'favorite.php',
                    type: 'POST',
                    data: { file_id:$(this).attr("name"), strState:"0" },
                    success: function() { // action after successful request
                        $("#favWrap").empty();
                        $("#favWrap").html("<input id='favorite' name='165' type='checkbox' /><label></label>");
                    },
                    error:function(){
                        $("#favWrap").empty();
                        $("#favWrap").html("<input id='favorite' name='165' type='checkbox' checked/><label></label>")
                    }
                });
            }
        }); 
    });
</script>

Your assistance would be greatly appreciated!

Answer №1

If there is an error in the response, you have the option to either tick or untick the checkbox by using:

$('#favorite').attr('checked', true); // Ticks it
$('#favorite').attr('checked', false); // Unticks it

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