PyQt -> Django + Next.js
The customer’s computer environment is quite complex, with machines running Windows 7, Windows 10, and Windows 11. Although the PyQt application we developed works on about 90% of these systems, …
http -> https, Nignx, Let’s Encrypt
Install Certbot on Ubuntu Host
Django Optimistic Locking (樂觀鎖定)
current in process record the version will be update += 1, so when in the same time another one do same thing will updated_rows == 0.
Django Pessimistic Locking (悲觀鎖定)
when select task by id, the database lock the record. if other one to do same time the second one will get the “Task is already claimed or completed” We …
Django Views
^: indicating the begin $: indicateing the last [0-9]{4}: 4 characters and each character is 0~9. (?P<by_date>…….), will pass the value as by_date parameter to the view. r preceding the …
Use Docker to help Django Development
if you have pyenv Dockerfile, you can use docker built -t django:latest . to build a docker image. command: docker run –rm -p 8000:8000 -p 3000:3000 -v c:\Users\Fluber\Project\Docker\django\book_django_beginners\:/home/fluber/code -it django:latest …
Dockerfile for pyenv environment
FROM ubuntu:20.04 ENV TZ = Asia\Taipei ENV DEBIAN_FRONTEND=noninteractive RUN apt-get update && \apt-get install -y \build-essential \libssl-dev \zlib1g-dev \libbz2-dev \libreadline-dev \libsqlite3-dev \wget \curl \llvm \libncurses5-dev \libncursesw5-dev \xz-utils \tk-dev \libffi-dev \liblzma-dev …