How to handle all errors programmatically on saving, updating and deleting records

rubyonrails-talk
1

Hello guys,

I want to know how to handle all errors programmatically when I save, update, and delete on record. For the save method, it will return true or false, but for update method and destroy/delete method they seems not to return any valid information they work successfully or not. Appreciate all your idea....

Thanks Chamnap

2

Destroy doesn't return true or false afaik, it just instantiates the objects and destroys them, calling all the callbacks.

Update does a find on the id you pass to it, and saves it. If the save fails, the unsaved object is returned, so I guess you can check wether or not the object changed if you want to figure out if the update was a success or not.

3

So it means there is no way that I handle programmatically?

4

Of course there is. For update, for instance, the unsaved object is returned, so you can probably do "if myoldobject.eql? mynewobject" for instance.

And for destroy - if it didn't raise anything, it worked.

5

What is about if I just handle all exception to make these 3 methods like:

begin   User.update(12, :email => "kkk@yahoo.com") # or delete, create   true rescue   false end

What do you think?

6

Should work, and looks good. Try it =)