Session Overview

Create Post Model

The Post Model stores all Blog Articles published on the website.

Each Post belongs to one Category and contains the Title, Summary, Image, Description and Publishing Information.

Step 1 - Import RichTextField

from ckeditor.fields import RichTextField

Step 2 - Create Post Model

class Post(models.Model):

    Id = models.AutoField(primary_key=True)

    Category = models.ForeignKey(
        Category,
        on_delete=models.CASCADE
    )

    Title = models.CharField(max_length=200)

    Slug = models.SlugField(unique=True)

    Summary = models.CharField(max_length=300)

    Image = models.ImageField(upload_to='uploads/')

    Description = RichTextField()

    PublishDate = models.DateField()

    IsPublished = models.BooleanField(default=True)

    def __str__(self):

        return self.Title

    class Meta:

        db_table = "BlogPosts"

Understanding the Post Model

The Post Model combines multiple Django Field Types to represent a complete Blog Article.

Relationship Between Tables

BlogCategories

Id      Name

1       Technology

2       Sports

3       Travel


        │

        │ Foreign Key

        ▼


BlogPosts

Title : Django ORM

Category : Technology

Image : django.jpg

Summary : Learn Django ORM

Description : Rich Text Content

Publish Date : 01/07/2026

Published : Yes

Understanding on_delete=models.CASCADE

Category = models.ForeignKey(

    Category,

    on_delete=models.CASCADE

)

Why do we use these additional fields?

Create Migration

After creating the Post Model, we must update the database by generating and applying migrations.

Step 1 - Generate Migration

python manage.py makemigrations

Django creates a new migration file inside the migrations folder.

Step 2 - Apply Migration

python manage.py migrate

Django creates the BlogPosts table in the MySQL database.

Verify Database

Refresh your MySQL database and verify that the BlogPosts table has been created successfully.

Create Model

      ↓

makemigrations

      ↓

Migration File

      ↓

migrate

      ↓

BlogPosts Table

Register Post Model in Admin

Register the Post Model to manage Blog Posts through the Django Admin Panel.

Open admin.py

blog/admin.py

Register Post Model

from django.contrib import admin

from .models import Category, Post


@admin.register(Post)
class PostAdmin(admin.ModelAdmin):

    list_display = [

        'Id',

        'Title',

        'Category',

        'PublishDate',

        'IsPublished'

    ]

    search_fields = [

        'Title',

        'Summary'

    ]

    list_filter = [

        'Category',

        'IsPublished',

        'PublishDate'

    ]

    ordering = [

        '-PublishDate'

    ]

CKEditor Integration

CKEditor is a Rich Text Editor that allows users to create formatted Blog content without writing HTML code.

It provides features such as headings, bold text, lists, tables and hyperlinks.

Step 1 - Install CKEditor

pip install django-ckeditor

Step 2 - Register CKEditor Application

Open blogproject/settings.py and add 'ckeditor' inside the INSTALLED_APPS list.

INSTALLED_APPS = [

    ...

    'ckeditor',

]

Step 3 - Import RichTextField

from ckeditor.fields import RichTextField

Step 4 - Update Description Field

Description = RichTextField()

Image Upload

Every Blog Post contains a Featured Image displayed on the Home Page and Blog Details page.

Django stores uploaded images inside the media folder.

Step 1 - Install Pillow

pip install pillow

Step 2 - Create Image Field

Image = models.ImageField(

    upload_to='uploads/'

)

Step 3 - Verify Media Configuration

MEDIA_URL = '/media/'

MEDIA_ROOT = BASE_DIR / 'media'

Step 4 - Verify urls.py

if settings.DEBUG:

    urlpatterns += static(

        settings.MEDIA_URL,

        document_root=settings.MEDIA_ROOT

    )

media/uploads

Quick Revision

python manage.py makemigrations

python manage.py migrate

python manage.py runserver

Assignment