Tawfiqh/DjangoPhotoServer

Running it once it is setup

pipenv run ./start.sh

Which runs:

pipenv shell python manage.py runserver 0.0.0.0:8000
pipenv shell python manage.py process_tasks

Accessing the server - routes:

/
e.g: http://raspberrypi2.local:8000/
Loads a frontend client that cycles through pictures

/newPic
e.g: http://raspberrypi2.local:8000/newPic
Fetch a new picture

Can find a list of routes under: PhotoServer/urls.py

Setting up pipenv

$ export PIPENV_VENV_IN_PROJECT="enabled"

$ python3 -m pipenv install --python 3.8; #If you need to install python3.8
$ python3 -m pipenv shell;
% pipenv install; 
% python manage.py runserver

$ python3 -m pip install pipenv
$ python3 -m pipenv shell
$ pipenv install django

Oneline:

$ export PIPENV_VENV_IN_PROJECT="enabled"; python3 -m pip install pipenv; python3 -m pipenv install --python 3.8;python3 -m pipenv shell; pipenv install; python manage.py runserver

$ export PIPENV_VENV_IN_PROJECT="enabled"; python3 -m pip install pipenv; python3 -m pipenv shell; pipenv install; python manage.py runserver

Initial setup

Run db migrations

% python manage.py makemigrations PhotoServer
% python manage.py showmigrations
% python manage.py migrate

And copy the env file. (adjust contentsas needed)

$ cp .env_example .env

Initally setting up django .venv:

Run this so the venv in the same folder as the code

$ export PIPENV_VENV_IN_PROJECT="enabled"

https://stackoverflow.com/questions/52540121/make-pipenv-create-the-virtualenv-in-the-same-folder

$ python3 -m pip install pipenv
$ python3 -m pipenv shell
$ pipenv install django

From https://hackersandslackers.com/getting-started-django/

Then can run:

% python -m django --version
% django-admin startproject PhotoServer
% cd PhotoServer
% python manage.py runserver

Will also need to run migrations:

Running migrations for the DB:

% python manage.py makemigrations PhotoServer
% python manage.py showmigrations
% python manage.py migrate

For background-taks info see: https://django-background-tasks.readthedocs.io/en/latest/

Helpful SQL

sqlite3 db.sqlite3 'select priority,run_at,repeat,repeat_until,queue,attempts,failed_at,locked_at from background_task;'

sqlite3 db.sqlite3 'select id,number_of_times_read,date_added from PhotoServer_cachedphoto;'
sqlite3 db.sqlite3 'select * from PhotoServer_cachedphoto;'

delete from PhotoServer_cachedphoto where 1;

Raspberry PI

To acess the hard-drive it sometimes requires that you be logged in as root otherwise you will get permission errors while the server is running.

Most of the pictures are accessible by root though so you can log into the pi and run:

- sudo su root

From there just start the server and it should run fine without permission errors. Hacky workaround found here: https://askubuntu.com/a/489761

To get it to just boot on launch, can setup /etc/rc.local Follow the instructions in sample_rc.local in this repo.

Tawfiqh / DjangoPhotoServer