[PYTHON] Create a homepage with django

I've made it many times until now, and then remade it again and again, and every time I googled various places, I wondered if I should leave a memorandum.

By the way, the content is almost https://qiita.com/noraricl/items/08937a508a2abecc7179 It will be as it is written. (I wanted to make a super-easy minimum page, so it was very helpful ...)

Environmental setting

I have created a virtual environment called rate-site from version 3.6.1 with pyenv and virtualenv, but anyone other than me can skip this.

mkdir rate_site
cd rate_site
pyenv virtualenv 3.6.1 rate-site
pyenv local rate-site

Create the following requirements.txt.

dj-database-url==0.5.0
dj-static==0.0.6
Django==2.2.6
django-heroku==0.3.1
gunicorn==20.0.0
mysqlclient==1.4.4
psycopg2==2.8.4
PyMySQL==0.9.3
python-dateutil==2.8.1
pytz==2019.3
six==1.13.0
sqlparse==0.3.0
static3==0.7.0
whitenoise==4.1.4

And

pip install -r requirements.txt

Install what you need at.

The directory (rate_site) that created requirements.txt is the top directory managed by git.

Project and application creation

mkdir rate_site #Now rate_Make another one in the site
cd rate_site
django-admin startproject rate_site .
python manage.py startapp rate_hp

Edit configuration file

`rate_site/settings.py`


INSTALLED_APPS = [
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
    'rate_hp',　#add to
]
(abridgement)
LANGUAGE_CODE = 'ja'　#Change
TIME_ZONE = 'Asia/Tokyo'　#Change
(abridgement)
USE_TZ =  False　#Change

migrate

python manage.py migrate

Created by administrator user

python manage.py createsuperuser

Start confirmation

python manage.py runserver

with this, http://127.0.0.1:8000/

When you visit, django displays the default page.

Make rate_hp accessible

`rate_site/urls.py`


from django.urls import path, include #add to

urlpatterns = [
    path('admin/', admin.site.urls),
    path('', include('rate_hp.urls')), #add to
]

HTML file creation

In the directory where rate_site and rate_hp are located, Create a templates directory and

`templates/base.html`


<html>
    <head>
        <title>home page</title>
    </head>
    <body>
        <p>This is base.It is html.</p>

    {% block main_containts %}
    {% endblock %}

        <p>This is base.It is html.</p>
    </body>
</html>

`templates/index.html`


{% extends "base.html" %}
{% block main_containts %}
{% load static %}

  <main>
Here is the index.It is html.
  </main>

{% endblock %}

Edit the file in rate_hp.

`rate_hp/views.py`


from django.shortcuts import render
from django.http import HttpResponse
from django.template import Context, loader

def index(request):
    template = loader.get_template('index.html')
    context = {}
    return HttpResponse(template.render(context, request))

ʻUrls.py` does not exist, so create a new one

`rate_hp/urls.py`


from django.urls import path
from . import views

app_name = 'rate_hp' #django2.Namespace definition needed from 0
urlpatterns = [
    path('', views.index, name='index'),
]

Make django load the templates you just created.

`rate_site/settings.py`


TEMPLATES = [
    {
        'BACKEND': 'django.template.backends.django.DjangoTemplates',
        'DIRS': ['templates'],  #add to
        'APP_DIRS': True,

Here too python manage.py runserver

To run http://127.0.0.1:8000/ To access.

Once completed

In the future, it is assumed that we will continue to add new applications to the home here so that they can be accessed.