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I'm trying to make a code-name(i.e: Test Post will be TP-1, TP-2 ...) thing on Django. There is news model, and post model i got. When user create news title hence post's codename will be according it's news's title. For example the
then assume that I created a first post and assign it in variable a
print a.codename must return
Currently i can take News title by it's abbreviation in 2 or 3 letter and problem is how to add number after letters. And Posts are related to News by
ForeignKey therefore number should increase according news like shown below.