I know how to build filters and Q objects in django, but I don\'t know how to negate the operators that the API provides, for example for the contains operator I would like something like notcontains.
In the code below, from a blog post by Alias, I noticed the use of the double exclamation mark !!. I was wondering what it meant and where I could go in the future to find explanations for Perl syntax
加载中,请稍侯......