feat: play_history

apps/courses/urls.py

@@ -10,7 +10,7 @@ app_name = 'courses'
 urlpatterns = [
     path('', views.IndexView.as_view(), name='index'),
     path('course/<int:pk>/', views.CourseDetailView.as_view(), name='course-detail'),
-    path('course/<int:pk>/lesson/<int:lesson_pk>/', views.LessonDetailView.as_view(), name='lesson-detail'),
+    path('course/<int:course_pk>/lesson/<int:lesson_pk>/', views.LessonDetailView.as_view(), name='lesson-detail'),
 
 ]
 

apps/courses/views.py

@@ -1,6 +1,11 @@
+import json
+
+from django.http import HttpResponse, JsonResponse
+
 from django.shortcuts import render
 from django.views import View
 from apps.courses.models import Course, Lesson
+from apps.users.models import User, PlayHistory
 
 
 # Create your views here.
@@ -24,7 +29,27 @@ class CourseDetailView(View):
 
 
 class LessonDetailView(View):
-    def get(self, request, pk, lesson_pk):
+    def get(self, request, course_pk, lesson_pk):
         lesson = Lesson.objects.get(pk=lesson_pk)
-        context = {'lesson': lesson}
+        play_history = PlayHistory.objects.filter(lesson=lesson, user=request.user).first()
+        if play_history:
+            play_time = play_history.time
+        else:
+            play_time = 0
+        print(play_time)
+
+        context = {'lesson': lesson, 'play_time': play_time}
         return render(request, 'courses/lesson_detail.html', context)
+
+    def post(self, request, course_pk, lesson_pk):
+        # print the post data
+        print(json.loads(request.body))
+        play_time = json.loads(request.body)['time']
+
+        PlayHistory.objects.update_or_create(
+            lesson=Lesson.objects.get(pk=lesson_pk),
+            user=User.objects.get(id=request.user.id),
+            defaults={'time': play_time}
+        )
+
+        return JsonResponse({'status': 'ok'}, status=200)

apps/users/migrations/0002_playhistory.py

@@ -0,0 +1,26 @@
+# Generated by Django 5.0.3 on 2024-03-19 13:19
+
+import django.db.models.deletion
+from django.conf import settings
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('courses', '0004_lesson_cover'),
+        ('users', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='PlayHistory',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('time', models.IntegerField()),
+                ('update_time', models.DateTimeField(auto_now=True)),
+                ('lesson', models.ForeignKey(null=True, on_delete=django.db.models.deletion.SET_NULL, to='courses.lesson')),
+                ('user', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to=settings.AUTH_USER_MODEL)),
+            ],
+        ),
+    ]

apps/users/models.py

@@ -1,7 +1,19 @@
 from django.db import models
 from django.contrib.auth.models import AbstractUser
 
+from apps.courses.models import Course, Lesson
+
 
 # Create your models here.
+
+
+
 class User(AbstractUser):
     pass
+
+
+class PlayHistory(models.Model):
+    lesson = models.ForeignKey(Lesson, on_delete=models.SET_NULL, null=True)
+    time = models.IntegerField()
+    user = models.ForeignKey(User, on_delete=models.CASCADE)
+    update_time = models.DateTimeField(auto_now=True)

templates/courses/lesson_detail.html

@@ -18,10 +18,54 @@
     <script src="https://cdn.plyr.io/3.7.8/plyr.polyfilled.js"></script>
 <script>
 const player = new Plyr('#player');
+player.currentTime = {{ play_time }};
+console.log('Current time:', player.currentTime);
+
+function getCookie(name) {
+    let cookieValue = null;
+    if (document.cookie && document.cookie !== '') {
+        let cookies = document.cookie.split(';');
+        for (let i = 0; i < cookies.length; i++) {
+            let cookie = cookies[i].trim();
+            if (cookie.substring(0, name.length + 1) === (name + '=')) {
+                cookieValue = decodeURIComponent(cookie.substring(name.length + 1));
+                break;
+            }
+        }
+    }
+    return cookieValue;
+}
+
+let csrftoken = getCookie('csrftoken');
+
+let url = '{{ lesson.get_absolute_url }}';
+
+function postData(url = '', data = {}) {
+    return fetch(url, {
+        method: 'POST',
+        headers: {
+            'Content-Type': 'application/json',
+            'X-CSRFToken': csrftoken
+        },
+        body: JSON.stringify(data)
+    })
+    .then(response => response.json());
+}
+
 // print current time on play every 10 seconds 
 setInterval(() => {
     console.log('Current time:', player.currentTime);
+    let data = {
+        user: '{{ request.user.id }}',
+        lesson: '{{ lesson.id }}',
+        time: player.currentTime};
+    
+    postData(url, data)
+        .then(data => {
+            console.log(data);
+        });
 }, 10000);
+
 player.on('pause', event => {
     console.log('Video paused', player.currentTime);
 });