according to
https://code.google.com/p/yii/issues/detail?id=3111
gii model genrator does not generates unique rule
many times I forget to insert manually this rule and Ι note it later in production mode!
So, I think it is important to include in new yii version.
does any one knows if it is included in ver 1.1.14 or yii 2 ?
Thanks!