kul96 / django_harry2

django_harry2

create app

app = plugable web application

python manage.py startapp app_name

• create two app
  1. python manage.py startapp shop
  2. python manage.py startapp blog

create urls.py file in shop & blog folder

add views in views.py file

create templates/blog(or shop) dir in blog and shop folder

blog->templates->blog

shop->templates->shop

add blog and shop in list (INSTALLED_APPS=[])

In setting this list present

add html file in template/blog(or shop) folder

Add static folder

create static/blog(or shop) dir in blog/shop folder

ex. blog/static/blog

add static file in that folder ex. mystatic.txt

when access static file then add these lines

{% load static %}  
{%static add_link_at_here %}

ex.

 <a href="{%static 'blog/mystatic.txt' %}">click me</a>

Then Restart the server

create model

In app folder(blog,shop) there is migrations folder created and models.py file also created automatics when you create App

python manage.py migrate

migrations

change in model are occured that store in the migration .
(jo change model m kiya h like. table ka nam change kr liya so this change only store in migration but not store in the database 'but when you apply migration that time that changes in databases applyed .(jab tk apply nhi kronge migration ko tb tk koi databases m change nhi hoga, only migration m store ho jayega wo changes.)

update

change in installed_app[] list(present in project1)

add this 'shop.apps.ShopConfig',
and remove 'shop

create model

create model with name 'Product'(class name) in shop/models.py file

make migration

 python manager.py makemigrations 

apply migration

  python manage.py migrate

make super Admin

 python manage.py createsuperuser

set user name ,pass,etc..

goto 127.0.0.1:8000/admin

data is not showing because we can't register our model so first register our model

go to shop/admin.py file

add these lines

 from .models import model_name
 admin.site.register(model_name)
 ex.
 from .models import Product
 admin.site.register(Product)

got to admin page(127.0.0.1:8000/admin)

now product(model) is showing

restart server then add product if error occur

  reason 1. not do migrate process
  reason 2. not restart the server

NOTE - if any change in model than definitlty you have to do 'migration '