Ruby: Don't raise error on date.strftime() if date is nil -

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One such case is when the code is called on zero I disagree.

This is the Datetime.strftime method. Indeed, this is considered to be formatted in the string in the date time object.

Then it must be understood that 

  datetime = Time.now Datetime.strftime ('% d-% m-% Y') # = & gt; '17 -10-2014 'datetime = zero datetime.strftime ('% d-% m-% Y ') # = & gt; Instead I need to always write:  
  datetime.strftime ('% d-% m-% Y') If the date time   
>

Which is a pain.

I think many unexpected behavioral series should come in the middle after calling a method on the blue, but in that situation, I do not see much danger. A string is returned anyway, and the result is quite logical: (empty_date) .to_s => empty_string

Can I avoid this behavior?

I disagree with you.

A zero value, which is a method called on it, which is kept in helpless codes, flow, or a situation which has not been adequately validated.

I do not know why your special case should be treated as an exception here. Your price is zero, and you are trying to call a method that does not exist. QED


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