The document discusses Django models, templates, views, and REST concepts. It explains that Django models define database tables and fields, templates allow mixing Python and HTML, and views handle requests and responses. It also maps REST methods like GET, POST, PUT, and DELETE to CRUD operations for creating, reading, updating and deleting data.

1. Django Girls Seoul
Django Study
Django Model-View-Template

2. MTV? MVC?

3. Model?

4. Model ( )
• Database Django
• DB Column
•
from django.db import models
class SomeInfo(models.Model):
name = models.CharField(max_length=200)
• name Column 200
.

5. Model Field ( )
• models SomeInfo => DB SomeInfo Table
• SomeInfo name => DB name Column
Model Manager ( )
• DB Query
• SomeInfo.objects.

6. User Method ( )
•
• SomeInfo class

7. Rela%onship ( )
• class (DB table )
• OneToOneField(1:1) / ForeignKey(1:n) / ManyToManyField(n:n)
class UserInfo(models.Model):
user = models.OneToOneField(settings.AUTH_USER_MODEL) # !
nickname = models.CharField(max_length=20)
class Post(models.Model):
user = models.ForeignKey(settings.AUTH_USER_MODEL) # .
title = models.CharField(max_length=200)
content = models.TextField()
class Tag(models.Model):
post = models.ManyToManyField(Post) # Post , Post .

8. Rela%onship ( )
• OneToOneField
u = User(user=request.user)
u.userinfo.nickname # user UserInfo nickname
• ForeignKey
u.post_set.all() # user post
• ManyToManyField
p = Post.objects.first()
p.tag_set.all()

9. Template?

10. Template ( )
• Python HTML
• Django Template ( Jinja2)
• View
• render
• MVC V( )

11. Template ( )
<!-- some_var -->
{{ some_var }}
<!-- some_tag -->
{% some_tag %}
<!-- -->
{{ some_var | filter }}
<!-- -->
{# #}
{% comment %} {% endcomment %}

12. View?

13. View ( )
• Django URL
• MVC C( )
• Func4on Based View vs Class Based View
• request -> response

14. HTTP Request
• method // GET, POST, ..
• GET, POST -> DICT(k:v)
• FILES
• user
• session
• ...

15. REST?
RESTful?

16. REST <=> CRUD

17. REST and CRUD
• HTTP Method POST / GET / PUT / DELETE
• CRUD Create / Read / Update / Delete
•

18. RESTful
• OpenAPI
• (JSON / XML / RSS)
• StateLess ( Context )
•
• ( )
• Token