おぼえがき: django使ってみた。

# dnf install python3 python3-libs python3-devel

# python3 -m ensurepip
$ python3 --version

Python 3.9.18

$ mkdir Django
$ cd Django
$ django-admin startproject Config

$ mv Config Project1
$ cd Project1
$ python3 manage.py startapp app

$ python3 -m venv .venv

$ ln -s ./.venv/lib/python3.9/site-packages django

----------------------------------------------------------------------

# yum install python36
$ python36 --version
Python 3.6.6
$ python36
Python 3.6.6 (default, Aug 13 2018, 18:24:23)
[GCC 4.8.5 20150623 (Red Hat 4.8.5-28)] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import django
>>> django.get_version()
'2.1.5'

$ mkdir Django
$ cd Django
$ django-admin startproject Project
$ cd Project
$ python36 manage.py startapp Login
$ python36 manage.py startapp app
$ vi Project/settings.py <<__EOF__

INSTALLED_APPS = [

'Login', # <--追加

]
TEMPLATES = [
{
'BACKEND': 'django.template.backends.django.DjangoTemplates',
'DIRS': [os.path.join(BASE_DIR, "templates")],
'APP_DIRS': True,
'OPTIONS': {
'context_processors': [
'django.template.context_processors.debug',
'django.template.context_processors.request',
'django.contrib.auth.context_processors.auth',
'django.contrib.messages.context_processors.messages',
],
},
},
]

__EOF__

■DBをmysqlに変更
$ vi Project/settings.py <<__EOF__
DATABASES = {
'default': {
'ENGINE': 'django.db.backends.mysql',
'NAME': 'django', #　作成したデータベース名予め空DBを作成しておく。
'USER': 'admin',
'PASSWORD':'パスワード',
'HOST': '',
'PORT': '',
}
}
__EOF__
$ vi manage.py
import pymysql
pymysql.install_as_MySQLdb()

$ mysql -u admin -p
mysql> create database django;
mysql> quit

$ python36 manage.py makemigrations Login
$ python36 manage.py migrate
$ python36 manage.py createsuperuser
$ python36 manage.py runserver

$ python36 manage.py shell # <-DB操作

■css, javascriptは、BootStrapを利用。
ダウンロードして、static/bootstrap/下に配置。(admin 2を利用）
https://startbootstrap.com/template-categories/all/

$ mkdir static # ~/Django/Project下
$ (cd static;unzip ../../startbootstrap-sb-admin-2-gh-pages.zip)
$ (cd static;ln -s startbootstrap-sb-admin-2-gh-pages bootstrap)
$ (cd static/bootstrap;ls | grep -v -E '^dist$|^js$|^vendor$'| xargs rm -r)
$ mkdir templates

$ vi templates/base.html <<__EOF__

<!DOCTYPE html>
<html lang="ja">
<head>
{% load staticfiles %}
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<meta name="description" content="">
<meta name="author" content="">
<title>{% block title %}{% endblock %}</title>
<link href="{% static 'bootstrap/vendor/bootstrap/css/bootstrap.min.css' %}" rel="stylesheet">
<link href="{% static 'bootstrap/vendor/metisMenu/metisMenu.min.css' %}" rel="stylesheet">
<link href="{% static 'bootstrap/dist/css/sb-admin-2.css' %}" rel="stylesheet">
<link href="{% static 'bootstrap/vendor/font-awesome/css/font-awesome.min.css' %}" rel="stylesheet" type="text/css">
<link href="{% static 'app/css/structure.css' %}" rel="stylesheet" type="text/css">
<script type="text/javascript" src="{% static 'bootstrap/vendor/jquery/jquery.min.js' %}"></script>
<script src="https://ajax.googleapis.com/ajax/libs/jqueryui/1.11.0/jquery-ui.min.js"></script>
<script src="{% static 'bootstrap/vendor/bootstrap/js/bootstrap.min.js' %}"></script>
<script src="{% static 'bootstrap/vendor/metisMenu/metisMenu.min.js' %}"></script>
<script src="{% static 'bootstrap/vendor/datatables/js/jquery.dataTables.min.js' %}"></script>
<script src="{% static 'bootstrap/vendor/datatables-plugins/dataTables.bootstrap.min.js' %}"></script>
<script src="{% static 'bootstrap/vendor/datatables-responsive/dataTables.responsive.js' %}"></script>
<script src="{% static 'bootstrap/dist/js/sb-admin-2.js' %}"></script>




</head>
<body>
<div id="wrapper">
<nav class="navbar navbar-default navbar-static-top manager-nav no-margin" role="navigation">
<div class="navbar-header">
<a class="navbar-brand">gragragrao Company</a>
</div>
<div class="navbar-default sidebar" role="navigation">
<div class="sidebar-nav navbar-collapse">
<ul class="nav" id="side-menu">
<li><a href="/worker_list/"><i class="fa fa-bar-chart" aria-hidden="true"></i> Worker一覧</a></li>
</ul>
</div>
</div>
</nav>
{% block body %}
{% endblock %}
</div>
</body>
</html>

__EOF__

$ vi templates/worker_list.html <<__EOF__

{% extends "base.html" %}
{% block title %}Worker List{% endblock %}
{% load staticfiles %}
{% block body %}
<div id="wrapper">
<div id="page-wrapper">
<div class="row">
<div class="col-lg-6 full-width margin-top-20percent" >
<div class="panel panel-default full-width">
<div class="panel-heading">
Edit Help
</div>
<div class="panel-body full-width full-height">
<table id="worker-list-table" class="table table-striped table-bordered table-hover dataTable no-footer dtr-inline full-width">
<thead>
<tr>
<th>ID</th>
<th>名前</th>
<th>性別</th>
<th>誕生日</th>
</tr>
</thead>
<tbody>
{% for worker in workers %}
<tr>
<td>{{worker.id}}</td>
<td>{{worker.person.name}}</td>
<td>{{worker.person.sex}}</td>
<td>{{worker.person.birthday}}</td>
</tr>
{% endfor %}
</tbody>
</table>
</div>
</div>
</div>
</div>
</div>
</div>
<script>
$(document).ready(function() {
$('#worker-list-table').DataTable({
responsive: true,
// sort機能の無効化
ordering: false,
// ページの表示件数を変更する
displayLength: 20,
});
});
</script>
{% endblock %}

__EOF__

$ vi Project/settings.py <<__EOF__

# Static file settings

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

STATICFILES_DIRS = (

os.path.join(BASE_DIR, "static"),

)

__EOF__

$ mkdir static/app
$ mkdir static/app/css

$ vi static/app/css/structure.css <<__EOF__

* ---------------------------------------------------------- */

/* general */

/* ---------------------------------------------------------- */

.full-height {

height: 100%;

}

.full-width {

width: 100%;

}

.margin-top-20percent {

margin-top: 20px;

}

.no-margin {

margin: 0 !important;

}

__EOF__

■ディレクトリ構造
Django
├── Project
│ ├── __init__.py
│ ├── __pycache__
│ │ ├── __init__.cpython-36.pyc
│ │ ├── settings.cpython-36.pyc
│ │ └── urls.cpython-36.pyc
│ ├── settings.py
│ ├── urls.py
│ └── wsgi.py
├── app
│ ├── __init__.py
│ ├── __pycache__
│ │ ├── __init__.cpython-36.pyc
│ │ ├── admin.cpython-36.pyc
│ │ └── models.cpython-36.pyc
│ ├── admin.py
│ ├── apps.py
│ ├── migrations
│ │ ├── __init__.py
│ │ └── __pycache__
│ │ └── __init__.cpython-36.pyc
│ ├── models.py
│ ├── tests.py
│ └── views.py
├── manage.py
├── static
│ ├── app
│ │ └── css
│ │ └── structure.css
│ ├── bootstrap
│ ├── dist
│ ├── js
│ └── vendor
└── templates
├── base.html
└── worker_list.html

※参考
https://qiita.com/gragragrao/items/373057783ba8856124f3
https://github.com/gragragrao/manager_project

※ログインを実装したところエラーが発生。
$ python36 manage.py makemigrations
.
.
from django.contrib.auth.views import login
ImportError: cannot import name 'login'

->django 2.1から login はloginViewに変わったらしい。

from django.contrib.auth.view import login
from django.contrib.auth import logout
↓
from django.contrib.auth.views import ( LoginView, LogoutView )

※マイグレーションでエラーがでた。
$ python36 manage.py makemigrations
You are trying to add a non-nullable field 'identifier' to person without a default; we can't do that (the database needs something to populate existing rows).
Please select a fix:
1) Provide a one-off default now (will be set on all existing rows with a null value for this column)
2) Quit, and let me add a default in models.py
Select an option: 2

-> app/migrations/配下のファイルを削除

Requested setting INSTALLED_APPS, but settings are not configured. You must either define the environment variable DJANGO_SETTINGS_MODULE or call settings.configure() before accessing settings.

->hijack

※ログイン実行でエラー
if self.request.user.is_authenticated():
TypeError: 'bool' object is not callable

->djangoの古いバージョンでは、methodであったが、今は属性。

request.user.is_authenticated():
↓
request.user.is_authenticated:

おぼえがき

2019年1月7日月曜日

django使ってみた。

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