From: Justin Collins <collinsj@...>
Date: 2006-08-16T15:26:10+09:00
Subject: Re: begin...rescue...retry next?

Joe Ruby wrote:
> Justin Collins wrote:
>   
>> Joe Ruby wrote:
>>     
>>> Logan Capaldo wrote:
>>>   
>>>       
>>>> some_exception_raising_call rescue nil # This is evil
>>>>     
>>>>         
>>> Why is that evil?
>>>
>>> Joe
>>>   
>>>       
>> Because if something goes wrong in that call, you will get no
>> information about it. Won't even know it happened.
>>
>> -Justin
>>     
>
> Yeah, but rescue nil is just usually to deal with null values from the 
> database, for example, which isn't a big deal.
>
> Jo

Using rescue this way will rescue all exceptions, but simply return nil.
Examples:

irb(main):001:0> puts a rescue nil
=> nil
irb(main):002:0> puts "asiodhasd".asdiajsd rescue nil
=> nil
irb(main):003:0> asdi.asdiojas.asidjas.asdihja.asdijasd rescue nil
=> nil
irb(main):004:0>

It's better, as I think Logan was implying, to rescue a specific 
exception if you are expecting it. That way, you will see if other 
exceptions occur.

Sorry if I misunderstood your reply.

-Justin