Summary
In this chapter, we have learned how to handle more complicated M-N database relations, and how to add an autocomplete feature with little AJAX help. This knowledge will allow us to make better and more useful admin areas, and to create pages that can be used and managed easily. It is worth remembering that modern JavaScript libraries allow us to create professional effects very easily, and Symfony often makes this task even simpler. Creating M-N relations is very quick and easy, and can also save a lot of time that we would have to spend on coding and testing our own solutions. A very flexible admin generator along with a form handling system is one of the main advantages of Symfony.
