django models.py code example

Example 1: create models in django

from django.db import models
# Create your models here.

class Contact(models.Model):
    name = models.CharField(max_length=50)
    email = models.CharField(max_length=50)
    contact = models.CharField(max_length=50)
    content = models.TextField()
    def __str__(self):
        return self.name + ' ' + self.email

Example 2: django shell

python manage.py shell

Example 3: django models

Models in Django are classes that represent data base tables.

Example 4: django models syntax

from django.db import models

class Student(models.Model):
    FRESHMAN = 'FR'
    SOPHOMORE = 'SO'
    JUNIOR = 'JR'
    SENIOR = 'SR'
    GRADUATE = 'GR'
    YEAR_IN_SCHOOL_CHOICES = [
        (FRESHMAN, 'Freshman'),
        (SOPHOMORE, 'Sophomore'),
        (JUNIOR, 'Junior'),
        (SENIOR, 'Senior'),
        (GRADUATE, 'Graduate'),
    ]
    year_in_school = models.CharField(
        max_length=2,
        choices=YEAR_IN_SCHOOL_CHOICES,
        default=FRESHMAN,
    )

    def is_upperclass(self):
        return self.year_in_school in {self.JUNIOR, self.SENIOR}

Example 5: from django.db import models

from django.db import models

class Person(models.Model):
  	"""
    	This class creates a new table with 
        the name of your application and that class name. 
        The fully qualified name of the table 
        will be "appName_className". 
        Also, two fields with data type char will be 
        created: first_name and last_name.
    """
    first_name = models.CharField(max_length=30)
    last_name = models.CharField(max_length=30)