mansha99

SECRET_MESSAGE=This is a very very secret message. Do not expose.

mansha99

import os
import environ #add this
BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
# Add All lines given below
env = environ.Env(
DEBUG=(bool, False)
)
environ.Env.read_env(os.path.join(BASE_DIR, '.env'))
# MESSAGE variable is getting its value from .env file

mansha99

from django.shortcuts import render
from django.http import HttpResponse
from django.conf import settings
def hello_world(request):
    # READ value from settings.py
    message = settings.SECRET_MESSAGE
    return HttpResponse(message)

mansha99

from django import dispatch
user_visit_signal = dispatch.Signal(["date_time","ip","device"])

mansha99

from django.dispatch import receiver
from helloapp import signals
@receiver(signals.user_visit_signal)
def handle_user_visit(sender, date_time,ip,device, **kwargs):
    message = "Visit to view {sender}, at {date_time} , IP is {ip} , Device is {device}".format(sender=sender,date_time=date_time,ip=ip,device=device) 
    print(message)

mansha99

from django.apps import AppConfig

class HelloappConfig(AppConfig):
    default_auto_field = "django.db.models.BigAutoField"
    name = "helloapp"
    def ready(self):
        from helloapp import receivers

mansha99

from django.http import HttpResponse
from helloapp import signals
from django.utils import formats
from rest_framework.decorators import api_view
from django.http import JsonResponse

import datetime
def hello_world(request):
    message = "Hello World"
    date_time = datetime.datetime.now()

mansha99

from django.db import models
from helloapp import signals
class Notice(models.Model):
    title = models.CharField(max_length=80)
    description = models.CharField(max_length=255)
    def save(self, *args, **kwargs):
        if self.title=="Oops":
            signals.invalid_notice_signal.send(sender=None)
            return 
        else:

mansha99

from django.dispatch import receiver
from helloapp import signals
from .models import Notice
from django.db.models import signals as modelSignals

#Predefined Model signal
@receiver(modelSignals.post_save, sender=Notice) 
def valid_notice_created(sender, instance, created, **kwargs):
    if created:
        message = "Notice Created : id = {id} ".format(id=instance.id) 

mansha99

from django.db import models

class Consultant(models.Model):
   name = models.CharField(max_length=255)
   specialization = models.CharField(max_length=64)
   def __str__(self):
        return self.name

class Patient(models.Model):
    name = models.CharField(max_length=255)