DJANGO

Michelle @flywindy 2016.11.29

-

Taipei.py

python user group

PyCon Taiwan

Python Web Meetup

Django Girls Taipei

2014~

Django

Python Web Meetup

(2015.7~)

v.s.

v.s.

Django Girls Taipei Python 3.5

...

/

Facebook /

- 11/29

- 12/13

- 12/27

- 1/10

- 1/24

- 2/7

......

https://github.com/djangogirlstaipei/eshop

-

https://github.com/djangogirlstaipei/eshophttps://github.com/djangogirlstaipei/eshop

GETTING STARTED

venv

install django (1.10.3)

$ python -m django version

$ which django-admin.py

startproject

ex: bookshop

startapp

ex: books

MODELS

Book

name

description

original_price

price

author

translator

publisher

isbn

language

MODELS

Book

status

created

updated

published

category

tags

MODEL FIELD

Field types

CharField v.s. TextField

DateTimeField (ex: created, updated, published)

auto_now v.s. auto_now_add

PositiveIntegerField (ex: price)

PositiveSmallIntegerField (ex: status)

EmailField / URLField

CharField

SlugField

FileField / ImageField

MODEL FIELD

Field options

null=True v.s. blank=True

CharField & TextField only need to use blank=True

default

choices

ex: status

help_text

unique

db_index

db_column

MODELS

Relationship fields

ForeignKey

Many-to-one relationships

ManyToManyField

OneToOneField

Book

Category Tag

1

m m

n

MIGRATIONS

makemigrations & migrate

sqlmigrate, which displays the SQL statements for a migration.

ex: python manage.py sqlmigrate books 0001

showmigrations, which lists a projects migrations and their status.

New in 1.10

python manage.py migrate list (before 1.10)

ADMIN

createsuperuser

Password - It must contain at least 8 characters. (1.10)

admin.py

@admin.register(Book)

admin.site.register(Book)

__str__ method

ADMIN

ADMIN - PART I

settings.py

LANGUAGE_CODE = 'zh-hant'

MODEL META

Model Meta options

db_table

default: books_book

ordering

ex: ordering = [-published']

unique_together

ex: unique_together = (("name", "author"),)

ManyToManyField cannot be included in unique_together

ADMIN - PART II

Model Meta options

verbose_name & verbose_name_plural

ADMIN - PART III

books/apps.py

books/__init__.py

ADMIN - PART IV

Model Field options

verbose_name

VIEWS

Templates

settings.py

home.html

views.py

home function

urls.py

NEXT -