Add option to define custom messages in the delete button action

Author: Martijn

src/resources/views/crud/buttons/delete.blade.php

@@ -47,9 +47,9 @@ className: "bg-danger",
 			          	// Show an error alert
 			              swal({
 			              	title: "{!! trans('backpack::crud.delete_confirmation_not_title') !!}",
-			              	text: "{!! trans('backpack::crud.delete_confirmation_not_message') !!}",
+                            text: result['error'] ? result['error'] : "{!! trans('backpack::crud.delete_confirmation_not_message') !!}",
 			              	icon: "error",
-			              	timer: 2000,
+			              	timer: 4000,
 			              	buttons: false,
 			              });
 			          } else {
@@ -78,7 +78,7 @@ className: "bg-danger",
 			          // Show an alert with the result
 			          swal({
 		              	title: "{!! trans('backpack::crud.delete_confirmation_not_title') !!}",
-		              	text: "{!! trans('backpack::crud.delete_confirmation_not_message') !!}",
+                        text: result['error'] ? result['error'] : "{!! trans('backpack::crud.delete_confirmation_not_message') !!}",
 		              	icon: "error",
 		              	timer: 4000,
 		              	buttons: false,
@@ -94,4 +94,4 @@ className: "bg-danger",
 	// make it so that the function above is run after each DataTable draw event
 	// crud.addFunctionToDataTablesDrawEventQueue('deleteEntry');
 </script>
-@if (!$crud->request->ajax()) @endpush @endif
+@if (!$crud->request->ajax()) @endpush @endif