Laravel 5.1

Session 04

Muhammad Rizwan Arshad,

Principal Software Engineer, Nextbridge.

July 30, 2015.

Views

Basic Usage

View stored in resources/views/greeting.php

<html>
    <body>
        <h1>Hello, <?php echo $name; ?></h1>
    </body>
</html>

Route::get('/', function ()    {
    return view('greeting', ['name' => 'James']);
});

 

Nested within sub-directories

return view('admin.profile', $data);

Determining If A View Exists

if (view()->exists('emails.customer')) {
    //
}

Passing Data To Views

return view('greetings', ['name' => 'Victoria']);

 

$view = view('greeting')->with('name', 'Victoria');

Blade Templates

Defining A Layout

<!-- Stored in resources/views/layouts/master.blade.php -->
<html>
    <head>
        <title>App Name - @yield('title')</title>
    </head>
    <body>
        @section('sidebar')
            This is the master sidebar.
        @show

        <div class="container">
            @yield('content')
        </div>
    </body>
</html>

Extending A Layout

<!-- Stored in resources/views/layouts/child.blade.php -->
@extends('layouts.master')

@section('title', 'Page Title')

@section('sidebar')
    @parent
    <p>This is appended to the master sidebar.</p>
@endsection

@section('content')
    <p>This is my body content.</p>
@endsection

Displaying Data

Route::get('greeting', function () {
    return view('welcome', ['name' => 'Samantha']);
});

 

Hello, {{ $name }}.

 

The current UNIX timestamp is {{ time() }}.

 

Blade {{ }} statements are automatically sent through PHP's htmlentities function to prevent XSS attacks.

Blade & JavaScript Frameworks

<h1>Laravel</h1>

Hello, @{{ name }}.

In this example, the @ symbol will be removed by Blade; 

However, {{ name }} expression will remain untouched by the Blade engine

Echoing Data If It Exists

{{ isset($name) ? $name : 'Default' }}
{{ $name or 'Default' }}

Displaying Unescaped Data

Hello, {!! $name !!}.

 

Be very careful when echoing content that is supplied by users of your application. Always use the double curly brace syntax to escape any HTML entities in the content.

Control Structures

If Statements

@if (count($records) === 1)
    I have one record!
@elseif (count($records) > 1)
    I have multiple records!
@else
    I don't have any records!
@endif
@unless (Auth::check())
    You are not signed in.
@endunless

Loops

@for ($i = 0; $i < 10; $i++)
    The current value is {{ $i }}
@endfor
@foreach ($users as $user)
    <p>This is user {{ $user->id }}</p>
@endforeach
@forelse ($users as $user)
    <li>{{ $user->name }}</li>
@empty
    <p>No users</p>
@endforelse
@while (true)
    <p>I'm looping forever.</p>
@endwhile

Including Sub-Views

<div>
    @include('shared.errors')
    <form>
        <!-- Form Contents -->
    </form>
</div>

@include('view.name', ['some' => 'data'])

Comments

{{-- This comment will not be present in the rendered HTML --}}

That's all for today!

Laravel 5.1 - Session 04

By gr8rizwan

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Laravel 5.1 - Session 04

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