Chapter 4. Building Queries
In the previous chapter, we added commenting and tagging support to our blog software. Although it works fine, some of the features can be enhanced.
In this chapter, we will leverage some very important parts of Doctrine: Doctrine Query Language (DQL), entity repositories, and the Query Builder. We will cover the following aspects in this chapter:
Optimizing the Comment feature
Creating a page to filter the posts with the help of tags
Displaying the number of comments of a post on the home page
