Laravel

Question 1

How do you iterate through an array (e.g. users) to print one of its contents (e.g. name) on screen as a list?

Answer 1

@foreach($users as $user)
<li>{{ $user[‘name’] }}</li>
@endforeach

Question 2

Start Laravel Sail without blocking the console!

Answer 2

sail up -d

Question 3

Make the /contact page path that displays the contact.blade.php page!

Answer 3

in web.php:
Route::get(‘/contact’, function () {
return view(‘contact’);
});

Question 4

Where would you need to store a layout file to be easily usable?

Answer 4

resources -> views -> components

Question 5

Implement the usage of a script called “nav-bar.blade.php”!

Answer 5

<x-nav-bar>

</x-nav-bar>

Question 6

How could you check if the page path (for example /about) is the current page path?

Answer 6

request().is(‘about’)

Question 7

Throw the right error for when a user tries to access a non-existent page!

Answer 7

abort(404);

Question 8

How can you create a new migration using artisan?

Answer 8

php artisan make:migration

Question 9

Which artisan command gives you the opportunity to then modify the database of a project in said terminal?

Answer 9

sail artisan tinker

Question 10

Given the fact, that a class People (in App\Models\People) accesses a database, which saves the names (name), the way they usually greet people (greetings) and their age (age), give an example for how to add somebody in the terminal using artisan!

Answer 10

App\Models\People::create([‘name’ => ‘xx’, ‘greeting’ => ‘xx’, ‘age’ => ‘xx’])

Question 11

Using artisan, what do you need to make to create something that can generate data for a database?

Answer 11

A factory

Question 12

An employer (the class is called Employer) can have many job listings but a job listing is only going to be under one employer. How could you test if $this is from an employer?

Answer 12

$this->belongsTo(Employer:class)

Question 13

Access the first object out of a database called Employer(App\Models\Employer)!

Answer 13

App\Models\Employer::first();

Question 14

If you run something in artisan tinker, it fails, you fix the cause of the failure in the code and then run the function again right away within tinker it will fail again. What causes this?

Answer 14

Once artisan tinker gets run, the program gets loaded into memory and changes only apply once you close out of and restart tinker, without said restart the bug still exists within tinker and that will cause the failure.

Question 15

Import App\Models\People in PHP!

Answer 15

use App\Models\People;

Question 16

What are factories used for?

Answer 16

Filling databases with data and preparing tests.

Question 17

What are seeders used for?

Answer 17

Running multiple factories or writing data directly as you migrate.

Question 18

Create a route function for posting pseudocode received by /contact!

Answer 18

Route::post(‘/contact’, function () {
// code
});

Question 19

A user gets to input their name (variable name is simply name) through a form into our database, check if the user actually entered a name before clicking submit!

Answer 19

(In the Route::post)
request ()->validate([
‘name’ => [‘required’]
]);

Question 20

Write a posted name variable into the model People from within the Route::post!

Answer 20

People::create([
‘name’ => request(‘name’)
]);

Question 21

How can you send a user back to the home page after they have submitted a form?

Answer 21

(in Route::post for said form)
return redirect(‘/’);

Question 22

You are creating an application, in which the user can click on a contact to get information about them. Using a wildcard, create the Route needed to display the subpage of contact!

Answer 22

Route::get(‘/contact/{id}’, function($id) {
// code
});

Question 23

Given the model People and the id of an object in there, set the variable “person” to the object with the id!

Answer 23

$person = People::find($id);

Question 24

Optimise this Route using Route Model Binding:
Route::delete(‘/contact/{id}’, function ($id) {
People::findOrFail($id)->delete();
return redirect(‘/contact’);
});

Answer 24

Route::delete(‘/contact/{person}’, function (People $person) {
$person->delete();
return redirect(‘/contact’);
});