library management system created

.gitignore

@@ -1 +1,21 @@
-/venv
+# Created by https://www.toptal.com/developers/gitignore/api/django
+# Edit at https://www.toptal.com/developers/gitignore?templates=django
+
+### Django ###
+*.log
+*.pot
+*.pyc
+__pycache__/
+local_settings.py
+db.sqlite3
+db.sqlite3-journal
+media
+
+# Environments
+.env
+.venv
+env/
+venv/
+ENV/
+env.bak/
+venv.bak/

file.csv

@@ -0,0 +1,6 @@
+title,author,publisher,available_quantity
+Book 1,Author 1,Publisher A,10
+Book 2,Author 2,Publisher B,15
+Book 3,Author 3,Publisher A,8
+Book 4,Author 4,Publisher C,20
+Book 5,Author 5,Publisher B,12

library/settings.py

@@ -10,7 +10,23 @@
 https://docs.djangoproject.com/en/4.2/ref/settings/
 """
 
+import os
 from pathlib import Path
+import environ
+import certifi
+
+env = environ.Env()
+environ.Env.read_env()
+
+# Previous settings ...
+EMAIL_BACKEND = 'django.core.mail.backends.smtp.EmailBackend'
+EMAIL_HOST = env('EMAIL_HOST')
+EMAIL_PORT = 587
+EMAIL_USE_TLS = True
+EMAIL_HOST_USER = env('EMAIL_HOST_USER')
+EMAIL_HOST_PASSWORD = env('EMAIL_HOST_PASSWORD')
+os.environ['SSL_CERT_FILE'] = certifi.where()
+
 
 # Build paths inside the project like this: BASE_DIR / 'subdir'.
 BASE_DIR = Path(__file__).resolve().parent.parent
@@ -37,6 +53,10 @@
     'django.contrib.sessions',
     'django.contrib.messages',
     'django.contrib.staticfiles',
+    'users',
+    'library_management',
+    'rest_framework',
+    'django_crontab',
 ]
 
 MIDDLEWARE = [
@@ -54,7 +74,7 @@
 TEMPLATES = [
     {
         'BACKEND': 'django.template.backends.django.DjangoTemplates',
-        'DIRS': [],
+        'DIRS': ['templates'],
         'APP_DIRS': True,
         'OPTIONS': {
             'context_processors': [
@@ -80,7 +100,6 @@
     }
 }
 
-
 # Password validation
 # https://docs.djangoproject.com/en/4.2/ref/settings/#auth-password-validators
 
@@ -99,6 +118,7 @@
     },
 ]
 
+AUTH_USER_MODEL = 'users.User'
 
 # Internationalization
 # https://docs.djangoproject.com/en/4.2/topics/i18n/
@@ -121,3 +141,12 @@
 # https://docs.djangoproject.com/en/4.2/ref/settings/#default-auto-field
 
 DEFAULT_AUTO_FIELD = 'django.db.models.BigAutoField'
+
+CRONJOBS = [
+    ('* * * * *', 'library_management.cron.send_return_reminders',
+     '>> /Users/rohansaeed/Desktop/library-management/library_management/debug7.log')
+]
+
+
+MEDIA_URL = '/media/'
+MEDIA_ROOT = os.path.join(BASE_DIR, 'media')

library/urls.py

@@ -15,8 +15,10 @@
     2. Add a URL to urlpatterns:  path('blog/', include('blog.urls'))
 """
 from django.contrib import admin
-from django.urls import path
+from django.urls import path, include
 
 urlpatterns = [
     path('admin/', admin.site.urls),
+    path('user/', include('users.urls')),
+    path('lib/', include('library_management.urls'))
 ]

library_management/admin.py

@@ -0,0 +1,8 @@
+from django.contrib import admin
+
+from .models import Book, BookIssue, NewBookTicket
+# Register your models here.
+
+admin.site.register(Book)
+admin.site.register(BookIssue)
+admin.site.register(NewBookTicket)

library_management/apps.py

@@ -0,0 +1,6 @@
+from django.apps import AppConfig
+
+
+class LibraryManagementConfig(AppConfig):
+    default_auto_field = 'django.db.models.BigAutoField'
+    name = 'library_management'

library_management/cron.py

@@ -0,0 +1,18 @@
+from django.core.mail import send_mail
+from django.utils import timezone
+from .models import BookIssue
+
+
+def send_return_reminders():
+    actual_return_date = timezone.now() + timezone.timedelta(days=15)
+    overdue_books = BookIssue.objects.filter(
+        return_date__lt=actual_return_date, returned=True)
+    for book in overdue_books:
+        user = book.user
+        subject = 'Return Reminder'
+        message = f"Dear {user.username}, please remember to return the book '{book.name}' as soon as possible."
+        from_email = '[email protected]'
+        recipient_list = [user.email]
+
+        send_mail(subject, message, from_email,
+                  recipient_list, fail_silently=False)

library_management/management/commands/my_books.py

@@ -0,0 +1,41 @@
+# myapp/management/commands/import_books_from_csv.py
+import csv
+from django.core.management.base import BaseCommand
+
+from library_management.models import Book
+
+
+class Command(BaseCommand):
+    help = 'Import books from a CSV file'
+
+    def add_arguments(self, parser):
+        parser.add_argument('file_path', type=str, help='Path to the CSV file')
+
+    def handle(self, *args, **kwargs):
+        file_path = kwargs['file_path']
+        try:
+            with open(file_path, 'r') as csvfile:
+                reader = csv.DictReader(csvfile)
+                for row in reader:
+                    title = row['title']
+                    author = row['author']
+                    publisher = row['publisher']
+                    available_quantity = int(row['available_quantity'])
+
+                    book, created = Book.objects.get_or_create(
+                        name=title,
+                        author=author,
+                        publisher=publisher,
+                        defaults={'quantity': available_quantity}
+                    )
+
+                    if not created:
+                        book.quantity = available_quantity
+                        book.save()
+
+                    self.stdout.write(self.style.SUCCESS(
+                        f'Successfully imported book: {title}'))
+
+        except FileNotFoundError:
+            self.stdout.write(self.style.ERROR(
+                'File not found. Please check the file path.'))

library_management/migrations/0001_initial.py

@@ -0,0 +1,49 @@
+# Generated by Django 4.2.6 on 2023-11-06 05:45
+
+from django.conf import settings
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Book',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('name', models.CharField(max_length=100)),
+                ('author', models.CharField(max_length=100)),
+                ('publisher', models.CharField(max_length=100)),
+                ('image', models.ImageField(blank=True, null=True, upload_to='books/')),
+                ('quantity', models.PositiveIntegerField(default=0)),
+            ],
+        ),
+        migrations.CreateModel(
+            name='NewBookTicket',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('status', models.CharField(choices=[('Pending', 'Pending'), ('Approved', 'Approved'), ('Rejected', 'Rejected')], default='Pending', max_length=20)),
+                ('book', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='library_management.book')),
+                ('user', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to=settings.AUTH_USER_MODEL)),
+            ],
+        ),
+        migrations.CreateModel(
+            name='BookIssue',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('issued_date', models.DateField(auto_now=True)),
+                ('return_date', models.DateField()),
+                ('returned', models.BooleanField(default=False)),
+                ('status', models.CharField(choices=[('Issued', 'Issued'), ('Pending', 'Pending'), ('Rejected', 'Rejected')], default='Pending', max_length=20)),
+                ('book', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='library_management.book')),
+                ('user', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to=settings.AUTH_USER_MODEL)),
+            ],
+        ),
+    ]

library_management/migrations/0002_alter_bookissue_status.py

@@ -0,0 +1,18 @@
+# Generated by Django 4.2.6 on 2023-11-07 05:21
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('library_management', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='bookissue',
+            name='status',
+            field=models.CharField(choices=[('pending', 'Pending'), ('issued', 'Issued'), ('rejected', 'Rejected')], default='pending', max_length=9),
+        ),
+    ]

library_management/models.py

@@ -0,0 +1,70 @@
+from django.conf import settings
+from django.db import models
+from users.models import User
+from django.db.models.signals import post_save
+from django.dispatch import receiver
+from django.core.mail import send_mail
+
+
+class Book(models.Model):
+    name = models.CharField(max_length=100)
+    author = models.CharField(max_length=100)
+    publisher = models.CharField(max_length=100)
+    image = models.ImageField(upload_to='books/', null=True, blank=True)
+    quantity = models.PositiveIntegerField(default=0)
+
+
+class BookIssue(models.Model):
+    # REQUEST_STATUS_CHOICES = (
+    #     ('Issued', 'Issued'),
+    #     ('Pending', 'Pending'),
+    #     ('Rejected', 'Rejected'),
+    # )
+    user = models.ForeignKey(User, on_delete=models.CASCADE)
+    book = models.ForeignKey(Book, on_delete=models.CASCADE)
+    issued_date = models.DateField(auto_now=True)
+    return_date = models.DateField()
+    returned = models.BooleanField(default=False)
+
+    class Status(models.TextChoices):
+        """
+        Status of each request, changed to depict the current status
+        Utilized TextChoices here as I required some comparisons with keys using request data
+        """
+        PENDING = "pending", "Pending"
+        ISSUED = "issued", "Issued"
+        REJECTED = "rejected", "Rejected"
+    status = models.CharField(choices=Status.choices,
+                              max_length=9, default=Status.PENDING)
+
+    # status = models.CharField(
+    #     max_length=20, choices=REQUEST_STATUS_CHOICES, default='Pending')
+
+
+class NewBookTicket(models.Model):
+    BOOK_TICKET_STATUS_CHOICES = (
+        ('Pending', 'Pending'),
+        ('Approved', 'Approved'),
+        ('Rejected', 'Rejected'),
+    )
+    user = models.ForeignKey(User, on_delete=models.CASCADE)
+    book = models.ForeignKey(Book, on_delete=models.CASCADE)
+    status = models.CharField(
+        max_length=20, choices=BOOK_TICKET_STATUS_CHOICES, default='Pending')
+
+    def __str__(self):
+        return f'{self.user} - {self.book}'
+
+
+@receiver(post_save, sender=NewBookTicket)
+def call_car_api(sender, instance, **kwargs):
+    subject = 'Ticket Received'
+    message = f"Dear {instance.user.username}, we have got your request regarding '{instance.book.name}'. We will soon inform you about availability ."
+    from_email = '[email protected]'
+    recipient_list = [instance.user.email]
+
+    send_mail(subject, message, from_email,
+              recipient_list, fail_silently=False)
+
+    print('Ticket object created')
+    print(sender, instance, kwargs)

library_management/permissions.py

@@ -0,0 +1,8 @@
+from rest_framework import permissions
+
+
+class IsStaffEditorPermission(permissions.DjangoModelPermissions):
+    def has_permission(self, request, view):
+        if request.method == 'GET':
+            return request.user and request.user.is_authenticated
+        return request.user and request.user.is_authenticated and (request.user.is_librarian or request.user.is_staff)