On Wednesday, December 4, 2013 5:27:39 AM UTC-8, Tom Evans wrote: > > On Wed, Dec 4, 2013 at 7:20 AM, Hussain Nagri > <nagr...@gmail.com<javascript:>> > wrote: > > Hello, > > I am new to Django and trying to learn myself. > > My question is that when we create models in model.py then after each > class > > we define a '__unicode__'. Is it necessary that we define this method ? > It > > gets called every time I try to fetch any data from that model. what if > I > > don’t want it to run every time I try to fetch data ? > > As Tom says, your model instances have to be represented on-screen *somehow*, so Python is going to run *something* to calculate what that representation should be. You should define it so you get the representation you want rather than going with the defaults - you're not going to save measurably on performance by skipping the _unicode_ definition.
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