Thanks. On Sat, Apr 4, 2009 at 11:26 AM, Daniel Roseman <roseman.dan...@googlemail.com> wrote: > > On Apr 4, 2:06 pm, Chris <chriss...@gmail.com> wrote: >> How would you enforce a unique column constraint on a combination of >> fields? >> >> For example, say I have the model: >> >> class Company(models.Model): >> name = models.CharField(unique=True) >> >> class Article(models.Model): >> company = models.ForeignKey(Company) >> title = models.CharField(max_length=500) >> >> In the Article model, I'd want to make the combination of company >> +title unique. In other words, one Company could be associated with >> many Articles, and one Article title could be associated with many >> Comanies, but no one company should be associated with the same >> Article title more than once. Is that possible? > > http://docs.djangoproject.com/en/dev/ref/models/options/#unique-together > -- > DR. > > >
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