MODELS IN DJANGO

MODELS.PY

# -*- coding: utf-8 -*-

from __future__ import unicode_literals

from django.db import models

# Create your models here.

from django.db import models

class Crawler(models.Model):#Model class name Crawler db name 

name = models.CharField(max_length=100)

value = models.DecimalField(max_digits=10,decimal_places=2)

location = models.CharField(max_length=100)

def __str__(self):

return self.name

A Model Is a Mapping to a Database Table

Open cmd go to ur project

 manage.py makemigrations

python manage.py migrate

We Can Preview the SQL in Our Migration

python manage.py sqlmigrate crawler 0003

Let’s Migrate Our Migration

python manage.py migrate

There’s an extra step called migrations thatneeds to happen only right after you create

a new model or update an existing model

The ORM translates Python code to SQL for us behind the scenes