This symfony tutorial goes throught the usage of symfony or specifically Doctrine 2 events, three main example using the prePersist , preUpdate, postRemove events, Lifecycle callbacks , and creating a seperate subscriber to help decouple the code further more a little bit of form events was covered to helper create a file from the filename and pass it to the form, but more on form events coming soon .. Timestamps: 00:00 - Configuring and setting up the project (creating the file manager) 11:11 - Doctrine events Symfony events tutorial: https://www.youtube.com/watch?v=S7aD7Wbgr6Q Symfony Services tutorial: https://www.youtube.com/watch?v=9KKvfKMkG6Q Any questions or suggestions for future videos or topics you want to see, don't hesitate to leave a comment . cheers :))