Larave/Ajax PUT 500 internal server error possible reasons - ajax

Question

My console shows this error whenever I try to update my form using my ajax code:
PUT http://127.0.0.1:8000/clinical/bbr-category-configuration-update/1 500 (Internal Server Error)
Route:
Route::put('/bbr-category-configuration-update/{category_id}', [BBRCategoryConfigurationController::class,'update']);
Ajax:
$(document).on('click', '.update_category', function (e){
e.preventDefault();
var cat_id = $('#edit_cat_id').val();
var update_data = {
'category_name' : $('#edit_category_name').val(),
'category_description' : $('#edit_category_description').val(),
}
//token taken from laravel documentation
$.ajaxSetup({
headers: {
'X-CSRF-TOKEN': $('meta[name="csrf-token"]').attr('content')
}
});
$.ajax({
type: "PUT",
url: "/clinical/bbr-category-configuration-update/"+cat_id,
data: update_data,
dataType: "json",
success: function (response){
// console.log(response);
if(response.status == 400) {
$('#category_formCheckUpdate').html("");
$('#category_formCheckUpdate').addClass('alert alert-danger');
$.each(response.errors, function (key, err_values) {
$('#category_formCheckUpdate').append('<li>'+err_values+'</li>');
});
} else if(response.status == 404) {
$('#category_formCheckUpdate').html("");
$('#category_notif').addClass('alert alert-success');
$('#category_notif').text(response.message);
} else {
$('#category_formCheckUpdate').html("");
$('#category_notif').html("");
$('#category_notif').addClass('alert alert-success');
$('#category_notif').text(response.message);
$('#editCategoryModal').modal('hide');
fetchcategory();
}
}
});
});
Controller:
public function update(Request $request, $category_id) {
$validator = Validator::make($request->all(), [
'category_name'=>'required|max:191',
'category_description'=>'required|max:191',
]);
if($validator->fails()) {
return response()->json([
'status'=>400,
'errors'=>$validator->messages(),
]);
} else {
$category_update = HmsBbrCategory::find($category_id);
if ($category_update) {
$category->category_name = $request->input('category_name');
$category->category_description = $request->input('category_description');
$category->update();
return response()->json([
'status'=>200,
'message'=>'Category Edited!',
]);
} else {
return response()->json([
'status'=>404,
'message'=>'Category Not Found',
]);
}
}
}
Things to note:
As you can see, my category_id is being read properly in: url: "/clinical/bbr-category-configuration-update/"+cat_id,. Also, I went ahead and did a console.log to show in my console that the whole table is getting retrieved. My main issue is this 500 internal server error. Not sure if it is by the PUT.
I also tried to change the PUT to POST or GET just to see if there is any change or other errors, but it's still the same 500 internal server issue. PS, my form has csrf.

Answer 1

Your problem is surely $category, you are using $category_update, not $category