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Caleb Porzio, co-presenter of the Twenty Percent Time podcast, published a new article on the Tightenco blog. This time he guides us through a nice use case for extending Eloquent models.

Let’s explore another alternative that can be used as a stand-in for repetitive where statements and local scopes. This technique involves creating new Eloquent models that extend other models. By extending another model, you inherit the full functionality of the parent model, while retaining the ability to add custom methods, scopes, event listeners, etc. This is commonly referred to as “Single Table Inheritance,” but I prefer to just call it “Model Inheritance”.

https://tighten.co/blog/extending-models-in-eloquent

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PHP 7.2 is just around the corner. In new blogpost Martin Hujer walks us through the changes.

PHP 7.2 is planned to be released on 30th November 2017 (see the timetable). And it comes with two new security features in the core, several smaller improvements and some language legacy clean-ups. In the article, I will describe what the improvements and changes are. I read the RFCs, discussions on internals and PRs on Github, so you don't have to.

https://blog.martinhujer.cz/php-7-2-is-due-in-november-whats-new/

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? My buddy @thatguychriswJS showed me that you can use the "plus equals" operator for a sort of "array merge assignment" - pretty sweet pic.twitter.com/UJEUlfSs7E

— Caleb Porzio (@calebporzio) September 7, 2017

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In a new article on his blog, Christoph Rumpel shows how you can easily set up a Facebook Messenger chatbot using the shiny new v2 of Botman Studio. Very cool stuff.

Although it seems quite easy to setup BotMan Studio and Facebook you still need to be aware of a few concepts regarding Facebook. I hope I could provide them there and this article helps you to setup your next Facebook Messenger chatbots. From here you are ready to build more and more features to your bot your own. So make sure to checkout the BotMan documentation to get a feeling of what is possible and learn new stuff.

http://christoph-rumpel.com/2017/09/build-a-facebook-chatbot-with-laravel-and-botman-studio/

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Jeff Madsen wrote down a good piece that explains how mutable Carbon dates can lead to some nasty bugs. I would't mind if Chronos were to be promoted to the default datetime library in Laravel.

If you hang out on any sort of programming forums you have no doubt encountered “The Great Mutable vs. Immutable Debate”. While I’m sure you know what the words mean, if you are new to programming or don’t have a strong Computer Science background it might not be obvious to you whether this is an important concept to be concerned with, or just more “architecture astronaut” purists arguing some obscure fine point.

To help you answer that for yourselves, I’m going to show you the difference between the two using two popular Php DateTime libraries — Carbon and Chronos, and then demonstrate the danger of using the mutable one of those.

https://medium.com/@codebyjeff/whats-all-this-immutable-date-stuff-anyway-72d4130af8ce

If you want to read more cool articles by Jeff, be sure to subscribe to his excellent newsletter.

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Jeff Ochoa wrote a nice walkthrough of one of Laravels lesser known functionalities: pipelines.

Basically, using laravel pipelines you can pass an object between several classes in a fluid way to perform any type of task and finally return the resulting value once all the “tasks” have been executed.

https://medium.com/@jeffochoa/understanding-laravel-pipelines-a7191f75c351

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Here's a great story by Collin O'Dell, maintainer of league/commonmark amongst other things, on how he was able to extract the class definitions out of obfuscated PHP source files.

Per the framework's license, decrypting the IonCube-protected code was not allowed. This meant it was impossible to recover the original source code. However, I could require those files and execute them in PHP, which would cause those classes to become usable in code. So how does one figure out what code just got loaded & executed?

https://www.colinodell.com/blog/201708/generating-ide-stubs-ioncube-encoded-classes

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Fav piece of code for today ❤️ Partition collection method, array destructuring, catching multiple exception types... loving PHP + Laravel pic.twitter.com/jkIQkFSzhf

— Jacob Bennett (@JacobBennett) August 24, 2017

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At Spatie, we're building a multi-tenant app. Seb figured out a great way to handle theme based views.

Laravel allows you register a view vendor namespace which points to a specific directory containing Blade files. This feature is intended for package development, but it's a perfect solution to our problem.

By registering a namespace with the current theme's location, we can drop all the dynamic parts of our view names when we're calling them.

https://sebastiandedeyne.com/posts/2017/theme-based-views-in-laravel-using-vendor-namespaces

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? Dedicated view objects are a great use case for Laravel 5.5's new `Responsable` interface.

Can remove the need for other fancy patterns ? pic.twitter.com/qFpK6SRHLC

— Adam Wathan (@adamwathan) August 16, 2017

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Ross Tuck is probably one of my favourite bloggers. He doesn't publish something often (his previous post is from 2015), but when he does it's very much worth your time.

The important takeaway here isn’t “value objects, yay, inline juggling, boo!” It’s that we were able to remove several classes of errors by reducing the precision of the DateTime we were handling. If we hadn’t done that, the value object would still be handling all of these edges cases and probably failing at some of them too.

Reducing the quality of data to get a correct answer might seem counter-intuitive but it’s actually a more realistic view of the system we’re trying to model. Our computers might run in picoseconds but our business (probably) doesn’t. Plus, the computer is probably lying anyways.

http://rosstuck.com/precision-through-imprecision-improving-time-objects

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The organisers of PHP Serbia have recently released all videos of the 2017 edition of their conference.

Watch them all here: https://www.youtube.com/playlist?list=PLfGr5rAHwhIJtdueIX5-9aEE7K94TNTqC

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Logan Henson, a developer at Tighten, wrote a new post on the company blog about MySQL's cool ST_Distance_Sphere function.

On a client project recently, we had to make it easy to filter database query results based on the distance between a user and an entity in our database. It's easy to get overwhelmed in that context, worrying about the crazy amount of PHP calculations you're going to have to run. ... If you need to calculate this, you can actually get surprisingly far by just using MySQL!

https://tighten.co/blog/a-mysql-distance-function-you-should-know-about

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Grégoire Paris wrote down his opinion on why he dislikes Yoda conditions.

So how do Yoda conditions work? Well it is basically a knee-jerk reaction you have to develop: whenever you write a condition, put the operand that cannot be assigned on the left. This should give you an error message if you make an assignment when you actually meant to make a comparison.

https://dev.to/greg0ire/why-using-yoda-conditions-you-should-probably-not

Personally, I'm not a big fan of Yoda conditions either. My feeling is the the cost of decreased readability is just too high for the small value that Yoda conditions bring to the table.

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At this year's Laracon US Adam Wathan gave a talk titled "Cruddy By Design" on how to structure your controllers better. After the conference he published a new GitHub repo that contains the demo app he refactored on stage. The 4 main tips to improve your code come as PRs on the repo with a full description on why the change is valuable. Very cool stuff.

Using this convention as a "rule" is a good way to force yourself to keep your controllers from becoming bloated, and can often lead to learning interesting new things about your domain.

For the presentation, I put together a demo app called "CastHacker" that showcases podcasts about software development. It's not a "real" app by any means (lots of imaginary features, no tests, etc.); it's just enough code to demonstrate the concepts from the presentation. Feel free to clone it and play with it locally if you like though.

I've written up each refactoring I shared in the presentation as a detailed pull request.

https://github.com/adamwathan/laracon2017

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