# django learn from docs personal note
###### tags: `python` `django` `backend` `learn` `project`

source code: https://github.com/caoqianming/django-vue-admin
後端程式心智圖：https://gitmind.com/app/doc/d6a2710078
資料庫連結關係圖：
https://dbdiagram.io/d/60ddab06dd6a5971482828d7

drf view 資料

### work flow

source /home/lj/Documents/GitHub/djangoLearnFromDocs/venv/bin/activate
python manage.py runserver

python manage.py shell

#### test work flow

1.
coverage run --omit='*/venv/*' manage.py test
coverage html

2.
coverage run -m pytest

3.
pytest --cov=myproj tests/
 pytest --cov= tests/ 

github:
https://github.com/LJlkdskdjflsa/djangoLearnFromDocs

## pytest-django:
note: https://hackmd.io/IYLAHhIiSaaeg5XrBASkUA

### qrcode

pip install qrcode

https://towardsdatascience.com/generate-qrcode-with-python-in-5-lines-42eda283f325

### test
coverage

pip install coverage

run test

coverage run -m pytest
coverage report -m


coverage run --omit='*/venv/*' manage.py test
coverage html

pytest + coverage
https://pytest-cov.readthedocs.io/en/latest/xdist.html

### tutorail

### cors
https://github.com/adamchainz/django-cors-headers

pip install django-cors-headers

### view set
problems
As the project scaled
- increase amount of view
- Endpoints subsequently scales with views
- Repetition of code in the views (queryset)
- Multiple endpoint (urls) can be difficult to maintain

viewset
- easy to write code
- additional layer of abstraction
- repeated logic can be combined into a single calss
- combine logic for a set of related views in a single classes
- write less code (DRY)

### router
- auto generate url patterns for developer
- routes for create/retrieve/update/destroy style action

### api docs and schema

pip install pyyaml
pip install uritemplate

core api (vs open api)
(use just in DRF)

 pip install coreapi

### make search

DRF view info
https://www.cdrf.co/

1. base on user
2. base on url

pip install django-filter

https://django-filter.readthedocs.io/en/stable/guide/install.html

### upload image

pip install pillow

### social login
https://github.com/wagnerdelima/drf-social-oauth2

pip install drf_social_oauth2
pip uninstall djangorestframework-simplejwt

client id:UovwEV9Ek5oTmvjXzmj5tBAUaYbS6TlXd0bHcnfw
client secret:M73NoRXxREEgy1QPJg7RQXQWldopvLLATtnFwqL17rYn1TwGgF1MsfwSabs1j4YZ8KBFoRmWUFPGBs2DlXE6Jex7A2YB6BBAaaA2e7YCWumhEfAlLAt3AnFfE3DNsiyX

test retrive token

curl -X POST -d "client_id=UovwEV9Ek5oTmvjXzmj5tBAUaYbS6TlXd0bHcnfw&client_secret=M73NoRXxREEgy1QPJg7RQXQWldopvLLATtnFwqL17rYn1TwGgF1MsfwSabs1j4YZ8KBFoRmWUFPGBs2DlXE6Jex7A2YB6BBAaaA2e7YCWumhEfAlLAt3AnFfE3DNsiyX&grant_type=password&username=[e-mail]&password=admin" http://localhost:8000/auth/token

return

{"access_token":"HknQt6LQijZtxN8Vv4dDRk6mGedkxI","expires_in":36000,"token_type":"Bearer","scope":"read write","refresh_token":"qOQgn0rLbfj3ZxC6qh9pgwL7LnY5ij"}

### Admin
video source : https://www.youtube.com/watch?v=djHsh4V79Yo&t=20s&ab_channel=VeryAcademy

#### make own custom admin

Q:
Select a valid choice. That choice is not one of the available choices.

### project
todo:
Import djongo DB engine
make the non static things
keep learning pytest

fix test_create_things

### 遷移到mongodb
error

djongo.exceptions.SQLDecodeError: 

        Keyword: Unknown token: TYPE
        Sub SQL: None
        FAILED SQL: ('ALTER TABLE "social_auth_association" ALTER COLUMN "id" TYPE long',)
        Params: ([],)
        Version: 1.3.6

The above exception was the direct cause of the following exception:

example:
https://bezkoder.com/django-mongodb-crud-rest-framework/

### deploy 為了自己建social login