Django工作笔记

获取objects里面的name字段的所有值的列表：

objects=modelname.objects.filter(id__in=idlist).only('name')names = [item.name for item in objects]

try:    p = Publisher.objects.get(name='Apress')except Publisher.DoesNotExist:    print "Apress isn't in the database yet."else:    print "Apress is in the database."

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