LARAVEL LARAVEL Eloquent ORM & Database 2

Question 1

Which Artisan command creates a new Eloquent model along with its migration file?

Accepted Answer

php artisan make:model Post -m

Answer

The -m flag with make:model instructs Artisan to generate a corresponding database migration file simultaneously.

Question 2

What does the `$hidden` property do in a Laravel Eloquent model?

Accepted Answer

Excludes listed attributes from array and JSON serialization

Answer

Attributes listed in $hidden are omitted when the model is converted to an array or JSON, commonly used for passwords and tokens.

Question 3

How does Laravel's `updateOrCreate()` method work?

Accepted Answer

It updates an existing record if found by the given attributes, otherwise creates a new one

Answer

updateOrCreate() performs an upsert: it searches by the first argument's attributes and updates with the second, or creates if not found.

Question 4

What is a database migration in Laravel?

Accepted Answer

A version-controlled PHP file that defines database schema changes

Answer

Migrations are PHP classes that describe schema changes (create tables, add columns) in a version-controlled, reversible manner.

Question 5

Which method do you call to roll back the most recent batch of database migrations?

Accepted Answer

php artisan migrate:rollback

Answer

php artisan migrate:rollback reverses the last batch of migrations by calling the down() method on each migration file in reverse order.

LARAVEL - Laravel PHP Framework Practice Test