In the preceding chapter, we developed the static data module that consisted of emulating the edition of a table from a database. Basically, it was a Create, Read, Update, Delete (CRUD) of a single table with some extra capabilities. In this chapter, we are going further in the complexity of managing information from a table. Usually, in real-world applications, the tables, the information of which we want to manage have relationships with other tables, and we have to manage the relationships as well. And this is what this chapter is all about. How can we build screens and manage complex information in Ext JS?

So in this chapter, we will cover: