كيفية برمجة تطبيق إنشاء قوائم تشغيل الموسيقى باستخدام Python Django

# التأكد من تثبيت Python
python --version

# تثبيت pip (إذا لم يكن مثبتًا)
# (عادةً ما يأتي مع Python)

# إنشاء بيئة افتراضية (موصى به)
python -m venv music_playlist_env
source music_playlist_env/bin/activate  # لنظام Linux/macOS
# music_playlist_env\Scripts\activate  # لنظام Windows

# تثبيت Django
pip install Django
django-admin --version

# إنشاء مشروع Django جديد
django-admin startproject music_playlist_app
cd music_playlist_app

# إنشاء تطبيق Django داخل المشروع
python manage.py startapp playlist
python manage.py startapp music

Python

from django.db import models
from django.contrib.auth.models import User

class Playlist(models.Model):
    user = models.ForeignKey(User, on_delete=models.CASCADE)
    name = models.CharField(max_length=255)
    description = models.TextField(blank=True, null=True)
    created_at = models.DateTimeField(auto_now_add=True)

    def __str__(self):
        return self.name

class Song(models.Model):
    title = models.CharField(max_length=255)
    artist = models.CharField(max_length=255)
    audio_file = models.FileField(upload_to='music/')

    def __str__(self):
        return f"{self.title} - {self.artist}"

class PlaylistSong(models.Model):
    playlist = models.ForeignKey(Playlist, on_delete=models.CASCADE)
    song = models.ForeignKey(Song, on_delete=models.CASCADE)
    added_at = models.DateTimeField(auto_now_add=True)

    class Meta:
        unique_together = ('playlist', 'song')

    def __str__(self):
        return f"{self.song.title} in {self.playlist.name}"

Python

from django.shortcuts import render, redirect, get_object_or_404
from django.contrib.auth.decorators import login_required
from .models import Playlist, Song, PlaylistSong
from .forms import Playlist Form, AddSongForm

@login_required
def playlist_list(request):
playlists = Playlist.objects.filter(user=request.user).order_by('-created_at')
return render(request, 'playlist/playlist_list.html', {'playlists': playlists})

@login_required
def create_playlist(request):
if request.method == 'POST':
form = PlaylistForm(request.POST)
if form.is_valid():
playlist = form.save(commit=False)

                playlist.user = request.user
                playlist.save()
                return redirect('playlist_detail', playlist_id=playlist.id)
        else:
            form = PlaylistForm()
        return render(request, 'playlist/create_playlist.html', {'form': form})

@login_required
def playlist_detail(request, playlist_id):
    playlist = get_object_or_404(Playlist, id=playlist_id, user=request.user)
    playlist_songs = PlaylistSong.objects.filter(playlist=playlist).select_related('song')
    add_song_form = AddSongForm()
    return render(request, 'playlist/playlist_detail.html', {
        'playlist': playlist,
        'playlist_songs': playlist_songs,
        'add_song_form': add_song_form,
    })

@login_required
def delete_playlist(request, playlist_id):
    playlist = get_object_or_404(Playlist, id=playlist_id, user=request.user)
    if request.method == 'POST':
        playlist.delete()
        return redirect('playlist_list')
    return render(request, 'playlist/delete_playlist_confirm.html', {'playlist': playlist})

@login_required
def add_song_to_playlist(request, playlist_id):
    playlist = get_object_or_404(Playlist, id=playlist_id, user=request.user)
    if request.method == 'POST':
        form = AddSongForm(request.POST, request.FILES)
        if form.is_valid():
            title = form.cleaned_data['title']
            artist = form.cleaned_data['artist']
            audio_file = form.cleaned_data['audio_file']

            song, created = Song.objects.get_or_create(title=title, artist=artist, defaults={'audio_file': audio_file})

            if not PlaylistSong.objects.filter(playlist=playlist, song=song).exists():
                PlaylistSong.objects.create(playlist=playlist, song=song)
                return redirect('playlist_detail', playlist_id=playlist_id)
            else:
                form.add_error(None, "This song is already in the playlist.")
    else:
        form = AddSongForm()
    return render(request, 'playlist/add_song_to_playlist.html', {'form': form, 'playlist': playlist})

@login_required
def remove_song_from_playlist(request, playlist_id, song_id):
    playlist = get_object_or_404(Playlist, id=playlist_id, user=request.user)
    song = get_object_or_404(Song, id=song_id)
    playlist_song = get_object_or_404(PlaylistSong, playlist=playlist, song=song)
    if request.method == 'POST':
        playlist_song.delete()
        return redirect('playlist_detail', playlist_id=playlist_id)
    return render(request, 'playlist/remove_song_confirm.html', {'playlist': playlist, 'song': song})

Python

from django import forms
from .models import Playlist, Song

class PlaylistForm(forms.ModelForm):
    class Meta:
        model = Playlist
        fields = ['name', 'description']

class AddSongForm(forms.Form):
    title = forms.CharField(max_length=255, label='Song Title')
    artist = forms.CharField(max_length=255, label='Artist Name')
    audio_file = forms.FileField(label='Audio File')

    def clean_audio_file(self):
        audio_file = self.cleaned_data['audio_file']
        if not audio_file.name.endswith(('.mp3', '.wav', '.ogg')):
            raise forms.ValidationError("Only .mp3, .wav, and .ogg files are allowed.")
        return audio_file

HTML

{% extends 'base.html' %}

{% block content %}
    <h1>{{ playlist.name }}</h1>
    <p>{{ playlist.description }}</p>
    <h2>Songs in this Playlist</h2>
    <ul>
        {% for playlist_song in playlist_songs %}
            <li>
                {{ playlist_song.song.title }} - {{ playlist_song.song.artist }}
                <audio controls src="{{ playlist_song.song.audio_file.url }}"></audio>
                <form method="post" action="{% url 'remove_song_from_playlist' playlist_id=playlist.id song_id=playlist_song.song.id %}" style="display: inline;">
                    {% csrf_token %}
                    <button type="submit">Remove</button>
                </form>
            </li>
        {% empty %}
            <li>No songs in this playlist yet.</li>
        {% endfor %}
    </ul>

    <h2>Add New Song</h2>
    <form method="post" enctype="multipart/form-data" action="{% url 'add_song_to_playlist' playlist_id=playlist.id %}">
        {% csrf_token %}
        {{ add_song_form.as_p }}
        <button type="submit">Add Song</button>
    </form>
    <br>
    <a href="{% url 'playlist_list' %}">Back to Playlists</a>
{% endblock %}