I dont understand why you want to validate uniqueness only on create.
Isnt it a problem if email is changed later to an address that already
exists?
The :on parameter is not available for validates_uniqueness_of, probably
because it doesnt make any sense.
If you really want to make the
The reason that your approach doesn't work is that you're still
calling validates_uniqueness_of on your class. This is telling it,
from now on, check uniqueness of this column any time the record is
saved. In effect, it's no different from just putting that code
directly in the class body.
On Feb 11, 12:51 pm, Mat Brown m...@patch.com wrote:
class ModelName
validates_uniqueness_of :email, :if = proc { |model| model.new_record? }
end
and in cases like this where you just want to call a method you can
do :if = :new_record?
Fred
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On Thu, Feb 11, 2010 at 11:57, Frederick Cheung
frederick.che...@gmail.com wrote:
On Feb 11, 12:51 pm, Mat Brown m...@patch.com wrote:
class ModelName
validates_uniqueness_of :email, :if = proc { |model| model.new_record? }
end
and in cases like this where you just want to call a method
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