1. Install PIP

sudo easy_install pip

2. Install Django

pip install Django

3. Install PostgreSQL driver if switching from SQLite

pip install django-pgjson

4. To create a new Django project, navigate to a folder where you want to create the project, then:

django-admin startproject <NAME_OF_YOUR_PROJECT>

5. Inside that new project you will find a settings.py file, open it and find the DATABASE = section and change it to:

DATABASES = { 'default': { 'ENGINE': 'django.db.backends.postgresql_psycopg2', 'NAME': 'NAME_OF_YOUR_DATABASE', # this DB has to be created in postgres first 'USER': 'YOUR_USERNAME', 'PASSWORD': 'YOURPASSWORD', 'HOST': 'localhost',
'PORT': '',
} }

6. cd into the project and look for the manage.py file. All these later commands are issued from that folder

7. To start the test server: (defaults to port 8000)

python manage.py runserver

OR: to start the test server on port 80 (default web port)

sudo python manage.py runserver 0.0.0.0:80

8. If you create a new Model or modify an existing one, you need to create a migration

python manage.py makemigrations

9. Run the migration

python manage.py migrate

10. to create a superuser so you can log into the autogenerated admin

python manage.py createsuperuser

if migrations get all screwy: ./manage.py migrate djangit zero then delete (manually) everything in the migrations folder EXCEPT init.py python manage.py showmigrations to show status python manage.py makemigrations python manage.py migrate https://www.youtube.com/watch?v=UpssHYl6bjA&index=7&list=PL6gx4Cwl9DGBlmzzFcLgDhKTTfNLfX1IK the above video at the 10:42 mark has foreign key example https://docs.djangoproject.com/en/1.10/topics/migrations/

migration-serializing .schema at the client command line

sqlmigrate at the command line just prints it to the screen so that you can see what SQL Django thinks is required - doesn't actually do a migration

python manage.py check; this checks for any problems in your project without making migrations or touching the database

to filter: Hop.objects.filter(hop_name__startswith='C')

https://docs.djangoproject.com/en/1.11/topics/forms/

HIDDEN FIELD EXAMPLE:

https://developer.mozilla.org/en-US/docs/Learn/Server-side/Django/Forms https://docs.djangoproject.com/en/1.10/ref/validators/

FOR IMPLEMENTING CHOICES DOWN THE ROAD

CITRUSY = 'CI' FLORAL = 'FL' FRUITY = 'FR' FUNKY = 'FU' GRASSY = 'GS' HERBAL = 'HE' HOPPY = 'HO' PINEY = 'PI' SPICY = 'SP' AROMA_CHOICES = ( (CITRUSY, 'Citrusy'), (FLORAL, 'Floral'), (FRUITY, 'Fruity'), (FUNKY, 'Funky'), (GRASSY, 'Grassy'), (HERBAL, 'Herbal'), (HOPPY, 'Hoppy'), (PINEY, 'Piney'), (SPICY, 'Spicy'), ) aroma = models.CharField( max_length=2, choices=AROMA_CHOICES, default=HOPPY, )

url(regex, view, kwargs, name)

djangit URL Configuration

The urlpatterns list routes URLs to views. For more information please see: https://docs.djangoproject.com/en/1.11/topics/http/urls/ Examples: Function views 1. Add an import: from my_app import views 2. Add a URL to urlpatterns: url(r'^$', views.home, name='home') Class-based views 1. Add an import: from other_app.views import Home 2. Add a URL to urlpatterns: url(r'^$', Home.as_view(), name='home') Including another URLconf 1. Import the include() function: from django.conf.urls import url, include 2. Add a URL to urlpatterns: url(r'^blog/', include('blog.urls'))

one option for logging is: print request.method

Source code for django.template.context: http://django.readthedocs.io/en/latest/_modules/django/template/context.html

Good basic info on working with GET and POST parameters: http://django.cowhite.com/blog/working-with-url-get-post-parameters-in-django/

Static files (CSS, JavaScript, Images) https://docs.djangoproject.com/en/1.11/howto/static-files/