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I am using Ruby on Rails 3 and I would like to know what type of return will have the following code:
@user.destroy I need that to handle cases on success and fault in someway like this:
if @user.destroy puts "True" else puts "false" end Is it possible? If so, how?
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If the destroy works, it will return the object (which will pass as true in an if statement) and if not, it will return false or raise an exception, depending on why it failed.
Basically destroy runs any callbacks on the model while delete doesn't. Deletes the record in the database and freezes this instance to reflect that no changes should be made (since they can't be persisted).
Rails delete operation using destroy methodBy using destroy, you can delete the record from rails as well as its other existing dependencies. So in the context of our rails application, if we delete a book record using the destroy function, the authors associated with the book will also be deleted.
If you set the :dependent option to: :destroy, when the object is destroyed, destroy will be called on its associated objects. :delete, when the object is destroyed, all its associated objects will be deleted directly from the database without calling their destroy method.
You should try what you're asking before asking. What you've got there will work just fine.
If the destroy works, it will return the object (which will pass as true in an if statement) and if not, it will return false or raise an exception, depending on why it failed.
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