VIVEKANANDA_COLLEGE_SESSION2_4VP20CS063_PRASHANTH_RAO

HOMEWORK2/mycompany/docker-compose.yml

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+version: "3"
+services:
+ web_service:
+   build:
+     context: ./
+     dockerfile: ./dockerfiles/Dockerfile
+   image: workshop1_web
+   container_name: workshop_web_container
+   stdin_open: true #  docker attach container_id
+   tty: true
+   ports:
+    - "8000:8000"
+   volumes:
+    - .:/root/workspace/site
+
+ psql-db:
+   image: 'postgres:14'
+   container_name: psql-db
+   environment:
+     - PGPASSWORD=123456
+     - POSTGRES_USER=postgres
+     - POSTGRES_PASSWORD=123456
+   ports:
+     - '5446:5432'
+   volumes:
+     - db:/var/lib/postgresql/data
+volumes:
+ db:
+   driver: local

HOMEWORK2/mycompany/dockerfiles/Dockerfile

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+FROM python:3.10.2-alpine3.15
+# Install required packages
+# For psycopg2
+RUN apk update && \
+    apk --no-cache add --virtual build-deps-alpine build-base && \
+    apk --no-cache add --virtual postgresql-deps libpq-dev
+# Install requirements
+RUN pip install --upgrade pip
+RUN pip install Django psycopg2==2.9.3
+# Create directories
+RUN mkdir -p /root/workspace/src
+COPY ./  /root/workspace/site
+# Switch to project directory
+WORKDIR /root/workspace/site

HOMEWORK2/mycompany/employees/admin.py

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+from django.contrib import admin
+from .models import Employees
+
+class DjEmployeeAdmin(admin.ModelAdmin):
+    list_display = ("first_name", "last_name", "emp_id", "address", "mobile", "dept","salary",)
+    list_filter = ("dept",)
+
+# Register your models here.
+admin.site.register(Employees, DjEmployeeAdmin)

HOMEWORK2/mycompany/employees/apps.py

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+from django.apps import AppConfig
+
+
+class EmployeesConfig(AppConfig):
+    default_auto_field = 'django.db.models.BigAutoField'
+    name = 'employees'

HOMEWORK2/mycompany/employees/migrations/0001_initial.py

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+# Generated by Django 4.2 on 2023-05-14 13:18
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Employees',
+            fields=[
+                ('first_name', models.CharField(max_length=200)),
+                ('last_name', models.CharField(max_length=200)),
+                ('emp_id', models.BigAutoField(primary_key=True, serialize=False)),
+                ('address', models.CharField(max_length=200)),
+                ('mobile', models.CharField(max_length=10)),
+                ('dept', models.CharField(choices=[('HR', 'HR'), ('Finance', 'Finance'), ('Marketing', 'Marketing'), ('Sales', 'Sales'), ('Planning', 'Planning'), ('Security', 'Security'), ('Engineering', 'Engineering')], max_length=100)),
+                ('salary', models.IntegerField()),
+            ],
+        ),
+    ]

HOMEWORK2/mycompany/employees/models.py

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+from django.db import models
+
+DEPARTMENT_CHOICES = (
+    ("HR", "HR"),
+    ("Finance","Finance"),
+    ("Marketing", "Marketing"),
+    ("Sales","Sales"),
+    ("Planning", "Planning"),
+    ("Security","Security"),
+    ("Engineering", "Engineering"),
+)
+
+# Create your models here.
+class Employees(models.Model):
+	first_name = models.CharField(max_length=200)
+	last_name = models.CharField(max_length=200)
+	emp_id = models.BigAutoField(primary_key=True)
+	address = models.CharField(max_length=200)
+	mobile = models.CharField(max_length=10)
+	dept = models.CharField(max_length=100, choices=DEPARTMENT_CHOICES)
+	salary = models.IntegerField()
+
+	def __str__(self):
+		return self.first_name + " " + self.last_name

HOMEWORK2/mycompany/employees/tests.py

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+from django.test import TestCase
+
+# Create your tests here.

HOMEWORK2/mycompany/employees/urls.py

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+from django.urls import path
+from . import views
+
+urlpatterns = [
+    path('employees/<int:emp_id>', views.EmployeeView.as_view()),
+    path('employees/', views.EmployeeView.as_view()),
+    path('employees/<str:dept>', views.EmployeeView.as_view()),
+]

HOMEWORK2/mycompany/employees/views.py

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+from django.views import View
+from .models import Employees
+from django.http import JsonResponse
+from django.views.decorators.csrf import csrf_exempt
+from django.utils.decorators import method_decorator
+import json
+
+@method_decorator(csrf_exempt, name='dispatch')
+class EmployeeView(View):
+
+    def get(self, request, emp_id=None, dept=None):
+        employee_model_list = []
+        try:
+            if emp_id:
+                employee_model_list = Employees.objects.filter(emp_id=emp_id)
+            elif dept:
+                employee_model_list = Employees.objects.filter(dept=dept)
+        except Employees.DoesNotExist:
+            return JsonResponse({'status': 'failed', "message": "Employee NOT FOUND! Enter a valid employee id"}, status=400)
+        employees = []
+        for employee in employee_model_list:
+            data = {
+                "first_name" : employee.first_name,
+                "last_name": employee.last_name,
+                "emp_id": employee.emp_id,
+                "address": employee.address,
+                "mobile": employee.mobile,
+                "salary": employee.salary,
+                "dept": employee.dept
+            }
+            employees .append(data)
+        return JsonResponse({'status': 'success', "employees": employees}, status=200)
+
+    def post(self, request):
+            if not request.POST.get('first_name') or not request.POST.get('last_name') or not request.POST.get('address') or  not request.POST.get('emp_id') or not request.POST.get('mobile') or not request.POST.get('dept') or not request.POST.get('salary'):
+                return JsonResponse({'status': 'failed', "message" : "All Fields Required"}, status=500)
+            Employees.objects.create(
+                first_name = request.POST.get('first_name'),
+                last_name = request.POST.get('last_name'),
+                emp_id = request.POST.get('emp_id'),
+                address = request.POST.get('address'),
+                mobile = request.POST.get('mobile'),
+                dept = request.POST.get('dept'),
+                salary = request.POST.get('salary'))
+            return JsonResponse({'status': 'success', "message" : "Successfully Added"}, status=200)
+
+    def delete (self, request, emp_id=None):
+    	    try:
+    		    val = Employees.objects.get(emp_id=emp_id)
+    		    val.delete()
+    		    return JsonResponse({'status': 'success', "message" : "Successfully Deleted"}, status=200) 
+    	    except Employees.DoesNotExist:
+    		    return JsonResponse({'status': 'failed', "message" : "Employee NOT FOUND!"}, status=400)
+
+    def put(self, request, emp_id=None):
+		    try:
+		        e = Employees.objects.get(emp_id=emp_id)
+		    except Employees.DoesNotExist:
+		        return JsonResponse({'status': 'failed', "message": "Employee NOT FOUND!"}, status=400)
+
+		    try:
+		        data = json.loads(request.body)
+		    except json.JSONDecodeError:
+		        return JsonResponse({'status': 'failed', "message": "INVALID JSON payload"}, status=400)
+
+		    sal = data.get('salary')
+		    if sal is not None:
+		        e.salary = sal
+		        e.save()
+		        return JsonResponse({'status': 'success', "message": "Salary field Updated"}, status=200)
+		    else:
+		        return JsonResponse({'status': 'failed', "message": "New salary value required"}, status=400)

HOMEWORK2/mycompany/manage.py

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+#!/usr/bin/env python
+"""Django's command-line utility for administrative tasks."""
+import os
+import sys
+
+
+def main():
+    """Run administrative tasks."""
+    os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'mycompany.settings')
+    try:
+        from django.core.management import execute_from_command_line
+    except ImportError as exc:
+        raise ImportError(
+            "Couldn't import Django. Are you sure it's installed and "
+            "available on your PYTHONPATH environment variable? Did you "
+            "forget to activate a virtual environment?"
+        ) from exc
+    execute_from_command_line(sys.argv)
+
+
+if __name__ == '__main__':
+    main()

HOMEWORK2/mycompany/mycompany/asgi.py

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+"""
+ASGI config for mycompany project.
+
+It exposes the ASGI callable as a module-level variable named ``application``.
+
+For more information on this file, see
+https://docs.djangoproject.com/en/4.2/howto/deployment/asgi/
+"""
+
+import os
+
+from django.core.asgi import get_asgi_application
+
+os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'mycompany.settings')
+
+application = get_asgi_application()

HOMEWORK2/mycompany/mycompany/settings.py

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+"""
+Django settings for mycompany project.
+
+Generated by 'django-admin startproject' using Django 4.2.
+
+For more information on this file, see
+https://docs.djangoproject.com/en/4.2/topics/settings/
+
+For the full list of settings and their values, see
+https://docs.djangoproject.com/en/4.2/ref/settings/
+"""
+
+from pathlib import Path
+
+# Build paths inside the project like this: BASE_DIR / 'subdir'.
+BASE_DIR = Path(__file__).resolve().parent.parent
+
+
+# Quick-start development settings - unsuitable for production
+# See https://docs.djangoproject.com/en/4.2/howto/deployment/checklist/
+
+# SECURITY WARNING: keep the secret key used in production secret!
+SECRET_KEY = 'django-insecure-eh_(x-x*jg0m237860e#4*#nn3xv_hbfjk9b7*ag39c*a(1=2d'
+
+# SECURITY WARNING: don't run with debug turned on in production!
+DEBUG = True
+
+ALLOWED_HOSTS = ['*']
+
+
+# Application definition
+
+INSTALLED_APPS = [
+    'django.contrib.admin',
+    'django.contrib.auth',
+    'django.contrib.contenttypes',
+    'django.contrib.sessions',
+    'django.contrib.messages',
+    'django.contrib.staticfiles',
+    'employees.apps.EmployeesConfig'
+]
+
+MIDDLEWARE = [
+    'django.middleware.security.SecurityMiddleware',
+    'django.contrib.sessions.middleware.SessionMiddleware',
+    'django.middleware.common.CommonMiddleware',
+    'django.middleware.csrf.CsrfViewMiddleware',
+    'django.contrib.auth.middleware.AuthenticationMiddleware',
+    'django.contrib.messages.middleware.MessageMiddleware',
+    'django.middleware.clickjacking.XFrameOptionsMiddleware',
+]
+
+ROOT_URLCONF = 'mycompany.urls'
+
+TEMPLATES = [
+    {
+        'BACKEND': 'django.template.backends.django.DjangoTemplates',
+        'DIRS': [],
+        'APP_DIRS': True,
+        'OPTIONS': {
+            'context_processors': [
+                'django.template.context_processors.debug',
+                'django.template.context_processors.request',
+                'django.contrib.auth.context_processors.auth',
+                'django.contrib.messages.context_processors.messages',
+            ],
+        },
+    },
+]
+
+WSGI_APPLICATION = 'mycompany.wsgi.application'
+
+
+# Database
+# https://docs.djangoproject.com/en/4.2/ref/settings/#databases
+
+DATABASES = {
+    'default': {
+        'ENGINE': 'django.db.backends.postgresql',
+        'NAME': 'employee_db',
+        'USER': 'postgres',
+        'PASSWORD': '123456',
+        'HOST': 'psql-db',
+        'PORT': 5432,
+    }
+}
+
+
+# Password validation
+# https://docs.djangoproject.com/en/4.2/ref/settings/#auth-password-validators
+
+AUTH_PASSWORD_VALIDATORS = [
+    {
+        'NAME': 'django.contrib.auth.password_validation.UserAttributeSimilarityValidator',
+    },
+    {
+        'NAME': 'django.contrib.auth.password_validation.MinimumLengthValidator',
+    },
+    {
+        'NAME': 'django.contrib.auth.password_validation.CommonPasswordValidator',
+    },
+    {
+        'NAME': 'django.contrib.auth.password_validation.NumericPasswordValidator',
+    },
+]
+
+
+# Internationalization
+# https://docs.djangoproject.com/en/4.2/topics/i18n/
+
+LANGUAGE_CODE = 'en-us'
+
+TIME_ZONE = 'UTC'
+
+USE_I18N = True
+
+USE_TZ = True
+
+
+# Static files (CSS, JavaScript, Images)
+# https://docs.djangoproject.com/en/4.2/howto/static-files/
+
+STATIC_URL = 'static/'
+
+# Default primary key field type
+# https://docs.djangoproject.com/en/4.2/ref/settings/#default-auto-field
+
+DEFAULT_AUTO_FIELD = 'django.db.models.BigAutoField'

HOMEWORK2/mycompany/mycompany/urls.py

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+from django.contrib import admin
+from django.urls import include, path
+
+urlpatterns = [
+    path('employees/', include('employees.urls')),
+    path('admin/', admin.site.urls),
+]

HOMEWORK2/mycompany/mycompany/wsgi.py

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+"""
+WSGI config for mycompany project.
+
+It exposes the WSGI callable as a module-level variable named ``application``.
+
+For more information on this file, see
+https://docs.djangoproject.com/en/4.2/howto/deployment/wsgi/
+"""
+
+import os
+
+from django.core.wsgi import get_wsgi_application
+
+os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'mycompany.settings')
+
+application = get_wsgi_application()