Two small questions

Grocery CRUD Community Edition
1

I have a column which displays as a Yes/No based on the mysql column being 0 or 1. Is there some easy way to reverse the yes and no?

I have a column that I’d like to display as a percent. Right now the column shows the number from the mysql column. I’d rather divide that number by 4 and show a percent. So if the column is 3 I’d like to show it as 3/4 or 75%. Any easy way to do this?

2

I came up with this solution. callbackBeforeUpdate(function($stateParameters){}
But I am getting this error. I am back to using Community version due to Enterprise not installing well.

Type: Error

Message: Call to undefined method Grocery_CRUD::callbackBeforeUpdate()

Filename: /app/application/controllers/Configure.php

Line Number: 606