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‎.gitignore

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/venv/
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.idea
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/media/
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/db.sqlite3

‎api/__init__.py

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‎api/admin.py

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from django.contrib import admin
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from .models import Hackathon, Submission, HackathonRegistration
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# Register your models here.
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admin.site.register(Hackathon)
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admin.site.register(Submission)
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admin.site.register(HackathonRegistration)

‎api/apps.py

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from django.apps import AppConfig
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class ApiConfig(AppConfig):
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default_auto_field = 'django.db.models.BigAutoField'
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name = 'api'

‎api/migrations/0001_initial.py

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# Generated by Django 4.2.4 on 2023-08-02 09:42
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import django.db.models.deletion
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from django.conf import settings
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from django.db import migrations, models
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class Migration(migrations.Migration):
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initial = True
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dependencies = [
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migrations.swappable_dependency(settings.AUTH_USER_MODEL),
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]
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operations = [
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migrations.CreateModel(
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name='Enrollment',
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fields=[
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('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
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('enrollment_date', models.DateTimeField(auto_now_add=True)),
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],
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),
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migrations.CreateModel(
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name='Hackathon',
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fields=[
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('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
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('title', models.CharField(max_length=255)),
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('description', models.TextField()),
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('background_image', models.ImageField(upload_to='hackathon_images/')),
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('hackathon_image', models.ImageField(upload_to='hackathon_images/')),
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('submission_type',
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models.CharField(choices=[('image', 'Image'), ('file', 'File'), ('link', 'Link')], max_length=10)),
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('start_datetime', models.DateTimeField()),
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('end_datetime', models.DateTimeField()),
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('reward_prize', models.DecimalField(decimal_places=2, max_digits=10)),
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('enrolled_users', models.ManyToManyField(related_name='enrolled_hackathons', through='api.Enrollment',
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to=settings.AUTH_USER_MODEL)),
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],
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),
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migrations.CreateModel(
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name='Submission',
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fields=[
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('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
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('name', models.CharField(max_length=255)),
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('summary', models.TextField()),
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('image_submission', models.ImageField(blank=True, null=True, upload_to='submission_images/')),
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('file_submission', models.FileField(blank=True, null=True, upload_to='submission_files/')),
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('link_submission', models.URLField(blank=True, max_length=255, null=True)),
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('hackathon', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='submissions',
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to='api.hackathon')),
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('user', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to=settings.AUTH_USER_MODEL)),
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],
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),
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migrations.AddField(
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model_name='enrollment',
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name='hackathon',
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field=models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='api.hackathon'),
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),
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migrations.AddField(
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model_name='enrollment',
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name='user',
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field=models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to=settings.AUTH_USER_MODEL),
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),
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migrations.AlterUniqueTogether(
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name='enrollment',
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unique_together={('user', 'hackathon')},
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),
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]

‎api/migrations/0002_hackathonregistration.py

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# Generated by Django 4.2.4 on 2023-08-02 10:14
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import django.db.models.deletion
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from django.conf import settings
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from django.db import migrations, models
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class Migration(migrations.Migration):
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dependencies = [
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migrations.swappable_dependency(settings.AUTH_USER_MODEL),
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('api', '0001_initial'),
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]
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operations = [
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migrations.CreateModel(
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name='HackathonRegistration',
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fields=[
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('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
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('registration_date', models.DateTimeField(auto_now_add=True)),
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('hackathon', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='api.hackathon')),
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('user', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to=settings.AUTH_USER_MODEL)),
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],
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),
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]

‎api/migrations/0003_alter_hackathon_enrolled_users_and_more.py

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# Generated by Django 4.2.4 on 2023-08-02 14:10
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from django.conf import settings
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from django.db import migrations, models
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class Migration(migrations.Migration):
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dependencies = [
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migrations.swappable_dependency(settings.AUTH_USER_MODEL),
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('api', '0002_hackathonregistration'),
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]
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operations = [
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migrations.AlterField(
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model_name='hackathon',
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name='enrolled_users',
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field=models.ManyToManyField(related_name='enrolled_hackathons', through='api.HackathonRegistration',
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to=settings.AUTH_USER_MODEL),
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),
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migrations.AlterUniqueTogether(
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name='submission',
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unique_together={('user', 'hackathon')},
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),
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migrations.DeleteModel(
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name='Enrollment',
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),
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]

‎api/migrations/0004_alter_hackathonregistration_unique_together.py

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# Generated by Django 4.2.4 on 2023-08-02 15:47
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from django.conf import settings
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from django.db import migrations
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class Migration(migrations.Migration):
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dependencies = [
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migrations.swappable_dependency(settings.AUTH_USER_MODEL),
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('api', '0003_alter_hackathon_enrolled_users_and_more'),
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]
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operations = [
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migrations.AlterUniqueTogether(
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name='hackathonregistration',
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unique_together={('user', 'hackathon')},
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),
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]

‎api/migrations/__init__.py

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‎api/models.py

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from django.contrib.auth.models import User
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from django.db import models
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class Hackathon(models.Model):
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SUBMISSION_CHOICES = (
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('image', 'Image'),
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('file', 'File'),
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('link', 'Link'),
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)
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title = models.CharField(max_length=255)
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description = models.TextField()
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background_image = models.ImageField(upload_to='hackathon_images/')
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hackathon_image = models.ImageField(upload_to='hackathon_images/')
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submission_type = models.CharField(max_length=10, choices=SUBMISSION_CHOICES)
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start_datetime = models.DateTimeField()
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end_datetime = models.DateTimeField()
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reward_prize = models.DecimalField(max_digits=10, decimal_places=2)
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enrolled_users = models.ManyToManyField(User, through='HackathonRegistration', related_name='enrolled_hackathons')
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def __str__(self):
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return self.title
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class Submission(models.Model):
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hackathon = models.ForeignKey(Hackathon, on_delete=models.CASCADE, related_name='submissions')
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user = models.ForeignKey(User, on_delete=models.CASCADE)
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name = models.CharField(max_length=255)
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summary = models.TextField()
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# Add specific fields for each submission type (image, file, link)
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image_submission = models.ImageField(upload_to='submission_images/', blank=True, null=True)
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file_submission = models.FileField(upload_to='submission_files/', blank=True, null=True)
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link_submission = models.URLField(max_length=255, blank=True, null=True)
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class Meta:
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unique_together = ['user', 'hackathon']
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def __str__(self):
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return self.name
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# submissions/models.py
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class HackathonRegistration(models.Model):
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user = models.ForeignKey(User, on_delete=models.CASCADE)
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hackathon = models.ForeignKey(Hackathon, on_delete=models.CASCADE)
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registration_date = models.DateTimeField(auto_now_add=True)
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class Meta:
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unique_together = ['user', 'hackathon']
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def __str__(self):
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return f"{self.user.username} registered for {self.hackathon.title}"

‎api/serializers.py

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from django.contrib.auth.models import User
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from rest_framework import serializers
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from api.models import Submission, Hackathon, HackathonRegistration
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class UserRegistrationSerializer(serializers.ModelSerializer):
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password = serializers.CharField(write_only=True, required=True, style={'input_type': 'password'})
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class Meta:
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model = User
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fields = ['username', 'password']
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def create(self, validated_data):
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user = User.objects.create_user(
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username=validated_data['username'],
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password=validated_data['password']
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)
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return user
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class SubmissionSerializer(serializers.ModelSerializer):
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class Meta:
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model = Submission
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fields = '__all__'
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extra_kwargs = {
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'user': {
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'read_only': True,
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},
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'hackathon': {
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'read_only': True,
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},
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}
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def create(self, validated_data):
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user = self.context['request'].user
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hackathon = validated_data['hackathon']
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# Check if the user is registered for the hackathon
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if not HackathonRegistration.objects.filter(user=user, hackathon=hackathon).exists():
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raise serializers.ValidationError("You are not registered for this hackathon.")
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submission = Submission.objects.create(**validated_data)
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return submission
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def to_representation(self, instance):
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representation = super().to_representation(instance)
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hackathon = instance.hackathon
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submission_type = hackathon.submission_type
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representation['user'] = instance.user.username
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representation['hackathon'] = instance.hackathon.title
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if submission_type == 'image':
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representation.pop('file_submission', None)
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representation.pop('link_submission', None)
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elif submission_type == 'file':
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representation.pop('image_submission', None)
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representation.pop('link_submission', None)
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elif submission_type == 'link':
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representation.pop('image_submission', None)
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representation.pop('file_submission', None)
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return representation
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def validate(self, data):
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hackathon = self.context['view'].get_object()
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submission_type = hackathon.submission_type
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if submission_type == 'image':
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if not data.get('image_submission'):
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raise serializers.ValidationError("Image submission is required.")
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data.pop('file_submission', None)
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data.pop('link_submission', None)
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elif submission_type == 'file':
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if not data.get('file_submission'):
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raise serializers.ValidationError("File submission is required.")
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data.pop('image_submission', None)
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data.pop('link_submission', None)
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elif submission_type == 'link':
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if not data.get('link_submission'):
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raise serializers.ValidationError("Link submission is required.")
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data.pop('image_submission', None)
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data.pop('file_submission', None)
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return data
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class UserSerializer(serializers.ModelSerializer):
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class Meta:
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model = User
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fields = ['id', 'username']
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class HackathonSerializer(serializers.ModelSerializer):
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submissions = SubmissionSerializer(many=True, read_only=True)
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registrations = serializers.SerializerMethodField()
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submission_count = serializers.SerializerMethodField()
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class Meta:
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model = Hackathon
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fields = '__all__'
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def get_registrations(self, obj):
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return obj.hackathonregistration_set.count()
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def get_submission_count(self, obj):
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user = self.context['request'].user
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return Submission.objects.filter(user=user, hackathon=obj).count()
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class HackathonRegistrationSerializer(serializers.ModelSerializer):
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class Meta:
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model = HackathonRegistration
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fields = '__all__'
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extra_kwargs = {
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'user': {
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'read_only': True,
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},
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}

‎api/tests.py

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# Create your tests here.

‎api/urls.py

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from django.urls import path
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from rest_framework_simplejwt.views import TokenObtainPairView, TokenRefreshView
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from .views import (
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UserRegistrationView,
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HackathonListCreateView,
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HackathonDetailView,
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EnrolledHackathonListView,
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UserSubmissionInView,
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HackathonRegistrationView, HackathonSubmissionView,
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)
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urlpatterns = [
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# Your other URL patterns
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path('register/', UserRegistrationView.as_view(), name='user_registration'),
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path('login/', TokenObtainPairView.as_view(), name='token_obtain_pair'),
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path('login/refresh/', TokenRefreshView.as_view(), name='token_refresh'),
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path('hackathons/', HackathonListCreateView.as_view(), name='hackathon-list-create'),
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path('hackathons/<int:pk>/', HackathonDetailView.as_view(), name='hackathon-detail'),
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path('hackathons/register/', HackathonRegistrationView.as_view(), name='hackathon_registration'),
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path('hackathons/<int:pk>/submission/', HackathonSubmissionView.as_view(), name='hackathon_submission'),
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path('registered-hackathons/', EnrolledHackathonListView.as_view(), name='register-hackathon-list'),
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path('registered-hackathons/<int:pk>/submission/', UserSubmissionInView.as_view(),name='user-submission-in-hackathon'),
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]

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