Freek.dev

Sometimes, no matter how senior you are, little issues like this can humble you. I recently faced a confusing issue where I was expecting a relationship to give me a User object, but instead, it just gave me a number! After two days of scratching my head, I finally figured out what went wrong.

Read more [infinitypaul.medium.com]

In this article Lennart Carstens-Behrens explains a very impressive PR he recently submitted at the Laravel repo.

Read more [lennartcb.me]

When you are working with a one-to-many relationship, it is sometimes the case that a particular instance on the "many" side of the relationship is flagged as unique and important to your system in some way. It can be really handy to be able to access that unique instance in a first class way from your models. This post is going to cover how you can do that without introducing any new concepts into your application.

Read more [timacdonald.me]

? Did you know you can add query-constraints when eager loading relationships in Laravel?
Perfect opportunity to improve query performance when your relationships return thousands of models.

↳ Full example: https://t.co/RsezzpkWoC pic.twitter.com/nwjC7U8Oqa

— Stefan Zweifel (@_stefanzweifel) November 12, 2019

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Here's a neat trick for soft deleting relationships in @laravelphp. ?

When you delete a record, immediately also soft delete any child records. ?

Later, when you restore the parent, automatically also restore all child records that were deleted when the parent was deleted. ? pic.twitter.com/YsYKWtu00R

— Jonathan Reinink (@reinink) February 27, 2019

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Jonathan Reininck wrote a cool article on how you can create dynamic releationships. This technique will keep the number of queries and the memory used to a minimum.

I hope that gives you a good overview of how you can use subqueries to create dynamic relationships in Laravel. This is a powerful technique that allows you to push more work into the database layer of your app. This can have a huge impact on performance by allowing you to drastically reduce the number of database queries executed and overall memory used.

Read more [reinink.ca]

There are three ways of loading relationships in Laravel. Tim MacDonald, a freelance dev based in Sydney, explains them all.

It is often useful to show the number of related models a given instance has, but not actually need any specific information about the related models, just how many exist. In this scenario you do not want to load all of the related models into memory to count them, we want our database to do the heavy lifting for us. Laravel offers a number of ways to retrieve relationship counts.

Read more [timacdonald.me]

#30daysWithEloquent customize relations on your models as necessary in your domain. Don't be afraid to add more relations that describe your logic better.

With @laravelphp it's a cinch ??? pic.twitter.com/m3TJXp9C2l

— DRY, DRY, DRY, DRY (@SOFTonSOFA) February 22, 2018

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Like this simple new addition coming in Laravel 5.4.28, it's handy for when you need to eager-load related models of a collection on the go. pic.twitter.com/0W3hqG97BR

— Mohamed Said (@themsaid) June 21, 2017

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Jarek Tkaczyk demonstrates how you can use a helper relation to eager load specific models.

Have you ever needed to show only single related model from the hasMany relationship on a set of parents?

Being it latest, highest or just random, it’s not very clever to load whole collection using eager loading, just like running query per every parent.

Of course you can do that better, and now let me show you how.

https://softonsofa.com/tweaking-eloquent-relations-how-to-get-latest-related-model/

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