In this chapter, you first learned the basic concepts of Fluid, followed by the use of partials and layouts, which help structure your templates. You have learned about the cObject ViewHelper that makes use of TypoScript in Fluid templates possible. Also, you have seen how additional tag attributes are included in the output of a ViewHelper. This chapter was rounded up by the presentation of the if ViewHelper and the possibility to formulate complex bool terms. Finally, we have shown how you develop your own ViewHelper. Finally, we have present all concepts again with the help of an extensive practical sample - the sjr_offers extension.

By now, you should have a good overview of the different levels of the MVC design pattern. The following chapter will focus on functions that touch all 3 levels. We will suggest the localization of an extension, the validating of data, and the security of an extension.