Throughout this chapter, we covered a lot of ground. We went over how to integrate console commands into our application with CConsoleCommand as well as how to import data into our database from an external source. We also went over how to integrate with two popular Google APIs: Google Maps and the Google Places API. Additionally, we covered caching the responses of these APIs. Finally, we went over importing third-party code into our application.

In this chapter and in Chapter 1, A Task-management Application, we went over almost all the basic components of building a Yii application. In the next chapter, we will create a scheduling application that will automatically remind the user of events before they occur'. We'll also expand on all of the topics we covered so far to build and work with more complex topics. Before continuing, be sure to take a look at all the classes we referenced in this chapter, in the official Yii documentation, so that you can better understand them.