What is CRUD and how should we use it in software development today. Examples based on the Laravel framework.

1. Laravel
The PHP Framework For Web Artisans
CRUD Operations Development
By Chen Alon

2. What is the acronym CRUD?
In computer programming, Create, Read, Update, and Delete are the four basic functions of
persistent storage.
Operation SQL REST API HTTP
Create INSERT .../resource PUT / POST
Read (Retrieve) SELECT .../resource/{id} | .../resource/{id}/resource GET
Update (Modify) UPDATE .../resource/{id} | .../resource/{id}/resource PUT / POST / PATCH
Delete (Destroy) DELETE .../resource/{id} | .../resource/{id}/resource DELETE

3. How you manage your CRUD operations?

4. An old project - managing CRUD operations
Do you see any problems?
Problems:
1. The controller class depends
on Eloquent.
2. It’s VERY hard to change the
data access layer.
3. Breaks the DRY principle
4. Adds responsibility to the
controller.
5. Breaks the SOLID principles.

5. So, how should we manage our CRUD?
(1) Use the Repository Design Pattern

6. So, how should we manage our CRUD?
(2) Follow the Don’t Repeat Yourself principle
The User Controller The User API Controller

7. So, how should we manage our CRUD?
(3) Follow the Dependency Inversion principle
Eloquent Implementation MongoDB Implementation

8. Summary & Resources
1) Use the Repository Design Pattern
Decouple the data layer from the business logic.
2) Follow the Don’t Repeat Yourself principle
Make sure your CRUD operations are available to use across the application.
3) Follow the Dependency Inversion principle (and SOLID in general)
Make sure you can switch your data layer easily.
Today you want to use Eloquent with MySQL,
Tomorrow you will have to switch to MongoDB.
Resources
● https://github.com/andersao/l5-repository/
● https://bosnadev.com/2015/03/07/using-repository-pattern-in-laravel-5/
● https://medium.com/beyond-the-manifesto/why-the-repository-pattern-is-ofte
n-misunderstood-in-the-laravel-community-e840780499f2

9. Laravel
BUILD SOMETHING AMAZING!
Thank You!