Track changes in your active record object using Dirty Objects in Rails
Mohit JainMohit Jain
If you want to track whether your active record objects have been modified or not. It becomes a lot easier with the dirty object functionality. It’s pretty straightforward and clean.
If you want to track whether your active record objects have been modified or not. It becomes a lot easier with the dirty object functionality. It’s pretty straightforward and clean.
You can also query to object directly for its list of all changed attributes.
Once you save a dirty object it clears out its changed state tracking and is once again considered unchanged.
If you’re going to be modifying an attribute outside of the attr= writer, you can use attr_name_will_change! to tell the object to be aware of the change: