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django notes

jupyter notebook
my django project


admin styles
app.js in static folder have absolute urls

    cd f:/Dev/Python/menab_cms/env/Scripts
    activate
    cd f:/Dev/Python/menab_cms
    python manage.py runserver

## DJANGO NOTES 
    django web application framework designed as MTV(model template view)
        - view contain all the business logics
        - model works with the database structure
        - template  is work with layout of the application
    DTL - django Template language

# Prepare virtual environment
    python -m venv env
    cd env/Scripts
    run activate.bat

# install from requirements file
    pip install -r requirements.txt

# get current dependencyLib
    pip freeze > requirements.txt

# Setup django project
    pip install django
    pip install psycopg2
    python -m pip install Pillow
    pip install django-ckeditor

# Sample urls.py file
    from django.urls import path
    from . import views
    urlpatterns = [
        path('url_part', views.class_name.method_name, name=name),
    ]

    Main urls.py sample

    from django.contrib import admin
    from django.urls import path, include

    urlpatterns = [
        path('calc/' , include('app_name.urls'))
    ]

# Sample view file

    from django.shortcuts import render
    from django.http import HttpResponse
    from django.shortcuts import render

    class Calculator:
        def index(request):
            return HttpResponse('this is a sample index')
        
        def home(request):
            context = {'name': 'Girma'}
            return render(request,'calc/index.html', context)

# Add templates folder
     {{ name }} -- access values
     {% block content %}

     {% end block%}

     {% extends file_name %} -- to insert current block to a parent file

- create a folder in the root directory of current project
    - create folder with name of the app(optional)
- add your template folder name to TEMPLATES->DIRS of settings.py
    - 'DIRS': [os.path.join(BASE_DIR, 'templates')],
- creat your html file

# Static files
- create a folder into he root directory to store all of static files

STEPS 

    STATICFILES_DIRS = (
        os.path.join(BASE_DIR, 'static'),
    )
    STATIC_ROOT = os.path.join(BASE_DIR, 'assets')

    - django moves all the static files to assets folder when 
      python manage.py collect static command is run
    - add {% load static %} to the template top section
    - access file as {% static "--location and d file name in static folder--" %}




# Connect to database
    DATABASES = {
        'default': {
            'ENGINE': 'django.db.backends.postgresql',
            'NAME': '',
            'HOST': 'localhost',
            'USER': '',
            'PASSWORD': ''
        }
    }
# Create and check migration
    python manage.py makemigrations --app_name--
    python manage.py sqlmigrate --app_name-- --migration-name--
    python manage.py migrate


# Basic commands

- django-admin startproject projectName -- create new project
- django-admin startapp appName -- add new app to a project
- python manage.py runserver -- lounch a server for the current project
- python manage.py createsuperuser
Posted by: Guest on September-01-2021

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