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How to determine if a record is just created or updated in after_save
The #new_record? function determines if a record has been saved. But it is always false in the after_save hook. Is there a way to determine whether the record is a newly created record or an old one from update?
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Use 'class' or 'typename' for template parameters? [duplicate]
When defining a function template or class template in C++, one can write this:
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Coarse-grained vs fine-grained
What is the difference between coarse-grained and fine-grained?
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How do I insert a linebreak where the cursor is without entering into insert mode in Vim?
Is possible to insert a line break where the cursor is in Vim without entering into insert mode? Here's an example ( [x] means cursor is on x ):
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Why is i++ not atomic?
Why is i++ not atomic in Java?
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How do you find the current user in a Windows environment?
When running a command-line script, is it possible to get the name of the current user?
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Why is String immutable in Java?
I was asked in an interview why String is immutable
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How to really read text file from classpath in Java
I am trying to read a text file which is set in CLASSPATH system variable. Not a user variable.
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#ifdef vs #if - which is better/safer as a method for enabling/disabling compilation of particular s
This may be a matter of style, but there's a bit of a divide in our dev team and I wondered if anyone else had any ideas on the matter...
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Can anonymous class implement interface?
Is it possible to have an anonymous type implement an interface?
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