This chapter was more about exploration than new concepts. The only major new concept that you learned was about the inner workings of Django forms, and this section took up fewer than five pages. The rest of the chapter was about finding solutions to problems that we encountered along the way.
As I said at the start of this chapter, this was the most complicated application that we have created in the book. It is also likely to be one of the more complicated applications you will create at the start of your career. It is by no means a polished product; that's more because we didn't do any frontend work, rather than some lack of features in the Django backend.
While the knowledge we gained about Django forms in this chapter will prove invaluable to you, I would like the main takeaway from it to be the approach to solving problems. We found a problem we needed to solve, we experimented in the Django shell, and we found a solution. Sometimes it's a bit more complicated than that. You...