Categoria Symfony

Symfony

Our 2019 sfday talk about Doctrine, master-slave, and sharding

In October 2019, I was able to present a talk at the annual sfday, the Italian conference about Symfony. The main focus of my presentation was how we handle Doctrine in our setup which includes both master-slave and sharding, something…

Davide Borsatto
26/03/2020

Ansible, Aurora, AWS, Devops, Doctrine, Lambda, PHP, RDS, Symfony

Amazon Aurora with sharding and Autoscaling

This article describes, from an infrastructural point of view, how to use together the doctrine sharding and Amazon Aurora Autoscaling, on our databases. Nuvola is our main project, which allows Italian schools to manage their activities in a computerized way.…

Loreno Edelmondo
20/05/2019

Symfony

Lightweight controllers everywhere in Symfony

The usual way of defining a controller in a default Symfony installation is by placing it in the src/Controller directory, but there might be situations where you just don’t want to do that. For instance, if you’re using some sort…

Davide Borsatto
07/05/2019

Symfony

Composition over inheritance: tackle the “Template Method”

In this article we’re gonna talk about composition over inheritance but not approaching this topic from a theoretical point of view (you can find dozens of good articles online by googling the topic), but instead by providing an example of…

DonCallisto
06/05/2019

Symfony

Dependency injection – Come iniettare servizi taggati

Tagged services Per indicare che un servizio svolge un particolare ruolo in Symfony è possibile configurarlo aggiungendo uno o più tags alla sua definizione. Per esempio, etichettando un servizio con il tag twig.extension si indica a Symfony che il servizio…

Nicola Fornaciari
06/05/2019

Symfony

TWIG: include VS embed VS macro

There are various types of code reuse in Twig but, what are the differences between them? In this article we’ll explore the differences between include, embed and macro. First of all, some definitions from the documentation: The include statement includes…

Luca Ferri
06/05/2019

Symfony

Symfony: Autowire dei repository Doctrine (Repositories as Service)

Con la versione 3.3, Symfony ha introdotto l’autowrire e l’autoconfigure dei servizi, risparmiando a noi developer parecchio lavoro “noioso”. Spesso capita di dovere iniettare un repository Doctrine: out of the box non è possibile farlo. Di default infatti i repository…

Alessandro Friscia
06/05/2019

Symfony

Come rendere fault-tolerant SncRedisBundle

Capita di voler utilizzare Redis per memorizzare informazioni non fondamentali o che possono essere rigenerate anche nel caso non fossero accessibili.In questi casi se il server Redis dovesse non essere disponibile per un qualsiasi problema, il nostro servizio sarebbe completamente…

Angelo Milazzo
06/05/2019

PHP, Software Development, Symfony

Using a Redis backed lock to address concurrency issues

The problem When a software handles multiple concurrent operations an entire class of problems arises. In our case multiple requests would try to update centralized information leading to unique constraint violations at the database level. That was because the code…

Angelo Milazzo
24/10/2018

Symfony

Doctrine EntityListener Pills: Comparing old and new values when updating data

You all, at some point, faced the necessity to compare old and new values when storing an entity. Here is where Doctrine EntityListener comes at help. Let imagine you have this User entity [crayon-5f93e4fe6d304065216534/] and you want to notify the…

Luca Ferri
13/10/2018