07 and 08 Videos for registrations to an event added

Author: amitavroy

.idea/workspace.xml

@@ -2,10 +2,19 @@
 
 namespace App\Http\Controllers;
 
+use App\Models\Event;
+
 class EventController extends Controller
 {
     public function add()
     {
         return view('pages.event-add-page');
     }
+
+    public function register(Event $event)
+    {
+        return view('pages.event-register', [
+            'event' => $event,
+        ]);
+    }
 }

app/Http/Controllers/EventController.php

@@ -0,0 +1,10 @@
+<?php
+
+namespace App\Http\Controllers;
+
+use Illuminate\Http\Request;
+
+class RegistrationController extends Controller
+{
+    //
+}

app/Http/Controllers/RegistrationController.php

@@ -3,6 +3,7 @@
 namespace App\Http\Livewire;
 
 use App\Models\Event;
+use Illuminate\Support\Str;
 use Livewire\Component;
 
 class EventAddForm extends Component
@@ -47,6 +48,7 @@ public function submit()
             Event::find($this->event->id)
                 ->update($event);
         } else {
+            $event['identifier'] = Str::random(10);
             Event::create($event);
         }
 

app/Http/Livewire/EventAddForm.php

@@ -0,0 +1,43 @@
+<?php
+
+namespace App\Http\Livewire;
+
+use App\Models\Event;
+use App\Rules\AlreadyRegistered;
+use Livewire\Component;
+
+class EventRegister extends Component
+{
+    public $event;
+    public $email;
+    public $name;
+
+    public function submit()
+    {
+        $this->validate([
+            'email' => ['required', new AlreadyRegistered($this->event->id)],
+            'name' => ['required'],
+        ]);
+
+        $event = Event::find($this->event->id);
+
+        $event->registrations()->create([
+            'name' => $this->name,
+            'email' => $this->email,
+        ]);
+
+        $event->increment('registered_participant');
+
+        $this->redirectRoute('event.register', ['event' => $this->event->identifier]);
+    }
+
+    public function mount(Event $event)
+    {
+        $this->event = $event;
+    }
+
+    public function render()
+    {
+        return view('livewire.event-register');
+    }
+}

app/Http/Livewire/EventRegister.php

@@ -7,4 +7,10 @@
 class Event extends Model
 {
     protected $guarded = [];
+
+    public function registrations()
+    {
+        return $this->hasMany(Registration::class)
+            ->orderByDesc('id');
+    }
 }

app/Models/Event.php

@@ -0,0 +1,15 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Model;
+
+class Registration extends Model
+{
+    protected $guarded = [];
+
+    public function event()
+    {
+        return $this->belongsTo(Event::class);
+    }
+}

app/Models/Registration.php

@@ -0,0 +1,31 @@
+<?php
+
+namespace App\Rules;
+
+use App\Models\Registration;
+use Illuminate\Contracts\Validation\Rule;
+
+class AlreadyRegistered implements Rule
+{
+    private $eventId;
+
+    public function __construct($eventId)
+    {
+        $this->eventId = $eventId;
+    }
+
+    public function passes($attribute, $value)
+    {
+        $count = Registration::query()
+            ->where('event_id', $this->eventId)
+            ->where('email', $value)
+            ->count();
+
+        return $count === 0;
+    }
+
+    public function message()
+    {
+        return 'You are already registered to this event.';
+    }
+}

app/Rules/AlreadyRegistered.php

@@ -15,12 +15,15 @@ public function up()
     {
         Schema::create('events', function (Blueprint $table) {
             $table->id();
+            $table->string('identifier', 10);
             $table->string('event_name');
             $table->string('contact_person');
             $table->string('contact_email');
             $table->integer('allowed_participant');
             $table->integer('registered_participant')->default(0);
             $table->timestamps();
+
+            $table->index(['identifier']);
         });
     }
 

database/migrations/2020_05_17_180854_create_events_table.php

@@ -0,0 +1,36 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+class CreateRegistrationsTable extends Migration
+{
+    /**
+     * Run the migrations.
+     *
+     * @return void
+     */
+    public function up()
+    {
+        Schema::create('registrations', function (Blueprint $table) {
+            $table->id();
+            $table->string('name');
+            $table->string('email');
+            $table->unsignedBigInteger('event_id');
+            $table->timestamps();
+
+            $table->index(['event_id']);
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     *
+     * @return void
+     */
+    public function down()
+    {
+        Schema::dropIfExists('registrations');
+    }
+}

database/migrations/2020_06_07_032148_create_registrations_table.php

@@ -3,6 +3,7 @@
         <thead>
         <tr>
             <th>#</th>
+            <th>Identifier</th>
             <th>Event name</th>
             <th>Contact person</th>
             <th>Contact email</th>
@@ -15,6 +16,7 @@
         @foreach($events as $event)
             <tr>
                 <td>{{$event->id}}</td>
+                <td>{{$event->identifier}}</td>
                 <td>{{$event->event_name}}</td>
                 <td>{{$event->contact_person}}</td>
                 <td>{{$event->contact_email}}</td>

resources/views/livewire/event-listing.blade.php

@@ -0,0 +1,50 @@
+<div class="content">
+    <h2>Event name: {{$event->event_name}}</h2>
+    <div class="row mb-3">
+        <div class="col-md-12">
+            <div class="card">
+                <div class="card-body">
+                    <p>Contact person: {{$event->contact_person}}</p>
+                    <p>Contact email: <a href="mailto:{{$event->contact_email}}">{{$event->contact_email}}</a></p>
+
+                    @if($event->allowed_participant !== 0)
+                        <p>Total seats: {{$event->allowed_participant}}</p>
+                        <p>Seats available: {{$event->allowed_participant - $event->registered_participant}}</p>
+                    @endif
+                </div>
+            </div>
+        </div>
+    </div>
+
+    <div class="row">
+        <div class="col-md-12">
+            <div class="card">
+                <div class="card-body">
+                    <p>If you are interested to join this event, enter your email address below:</p>
+
+                    <form wire:submit.prevent="submit" class="w-50">
+                        <div class="form-group">
+                            <input type="text" name="name" id="name" class="form-control"
+                                   wire:model="name" placeholder="Enter your name" autocomplete="off"
+                                   tabindex="1">
+                            @error('name')
+                            <div class="error">{{$message}}</div>
+                            @enderror
+                        </div>
+
+                        <div class="form-group">
+                            <input type="text" name="email_address" id="email_address" class="form-control"
+                                   wire:model="email" placeholder="Enter your email address" autocomplete="off"
+                                   tabindex="2">
+                            @error('email')
+                            <div class="error">{{$message}}</div>
+                            @enderror
+                        </div>
+
+                        <button class="btn btn-success">Register</button>
+                    </form>
+                </div>
+            </div>
+        </div>
+    </div>
+</div>

resources/views/livewire/event-register.blade.php

@@ -0,0 +1,10 @@
+@extends('layouts.app')
+@section('content')
+    <div class="container">
+        <div class="row justify-content-center">
+            <div class="col-md-12">
+                @livewire('event-register', ['event' => $event])
+            </div>
+        </div>
+    </div>
+@endsection

resources/views/pages/event-register.blade.php

@@ -15,3 +15,5 @@
     Route::get('/event/add', [EventController::class, 'add'])->name('event.add');
     Route::livewire('/event/view/{event}', 'event-view')->name('event.view');
 });
+
+Route::get('/register/{event:identifier}', [EventController::class, 'register'])->name('event.register');