In this chapter we have been working with data, we learned how to create models with fields, mappings, validations, and relationships. We also worked with a collection of models using the
store class, pulling, and sending data to the server using proxies, readers, and writers.
It's important to mention that every widget in Ext JS that displays data uses a store and models to manage all the data. When we modify a model in our store, the widget will automatically refresh its view. For example, if we have a grid and we want to delete a record, we only use the
remove method from the store. By doing this the grid automatically will update the rows and the deleted row won't appear anymore.
In the next chapter we are going to learn about events ...