Seis paquetes de Python recomendados para cada aplicación web de Django

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Existen innumerables paquetes de Python que son fáciles de agregar a cualquier proyecto. Pero también hay algunos paquetes que simplemente no puede evitar usar en cualquier aplicación web de Django porque han demostrado ser extremadamente útiles y ahorran tiempo.



Decidimos centrarnos en los paquetes que acabará instalando de forma regular y hablar sobre la instalación y las configuraciones necesarias para que estén listos para funcionar.



Python- , , , , — Django-.



- Django



Django-, - Django.

- , , - -.



Django - (. .: full-stack) -, , , , . , , .



Django:



macOS



(env)User-Macbook:env user$ pip install django


Windows



(env)C:\Users\Owner\desktop\env> pip install django


Django — 3.0.8. , — pip install django.



, , pip install django==2.1.15. , , , .



- Django. - Django, : Django . , , , « - Django ».



, Python-, - Django, Django, . .



(1) Django TinyMCE4 Lite



macOS



(env)User-Macbook:mysite user$ pip install django-tinymce4-lite


Windows



(env) C:\Users\Owner\Desktop\Code\env\mysite>pip install django-tinymce4-lite


-, Python- django-tinymce4-lite. , , — Django- django-tinymce4, Django- TinyMCE.



TinyMCE — WSIWYG (« , ») , HTML- « ». Python- , , , HTML .



env > mysite > mysite > settings.py



INSTALLED_APPS = [
    ...
    ...
    'tinymce',
]

TINYMCE_DEFAULT_CONFIG = {
    'height': 400,
    'width': 1000,
    'cleanup_on_startup': True,
    'custom_undo_redo_levels': 20,
    'selector': 'textarea',
    'browser_spellcheck': 'true',
    'theme': 'modern',
    'plugins': '''
            textcolor save link image media preview codesample contextmenu
            table code lists fullscreen  insertdatetime  nonbreaking
            contextmenu directionality searchreplace wordcount visualblocks
            visualchars code fullscreen autolink lists  charmap print  hr
            anchor pagebreak
            ''',
    'toolbar1': '''
            fullscreen preview bold italic underline | fontselect,
            fontsizeselect  | forecolor backcolor | alignleft alignright |
            aligncenter alignjustify | indent outdent | bullist numlist table |
            | link image media | codesample
            ''',
    'toolbar2': '''
            visualblocks visualchars |
            charmap hr pagebreak nonbreaking anchor |  code |
            ''',
    'contextmenu': 'formats | link image',
    'menubar': True,
    'statusbar': True,
}


tinymce settings.py, . , , .



env > mysite > mysite > urls.py



"""mysite URL Configuration

The `urlpatterns` list routes URLs to views. For more information please see:

    https://docs.djangoproject.com/en/2.1/topics/http/urls/
Examples:
Function views
    1. Add an import:  from my_app import views
    2. Add a URL to urlpatterns:  path('', views.home, name='home')
Class-based views
    1. Add an import:  from other_app.views import Home
    2. Add a URL to urlpatterns:  path('', Home.as_view(), name='home')
Including another URLconf
    1. Import the include() function: from django.urls import include, path
    2. Add a URL to urlpatterns:  path('blog/', include('blog.urls'))
"""
from django.contrib import admin
from django.urls import path, include

urlpatterns = [
    path('admin/', admin.site.urls),
    path('', include ('main.urls')),
    path('tinymce/', include('tinymce.urls')), #add this


tinymce URL- .



env > mysite > main > models.py



from django.db import models
from tinymce import HTMLField

class MyModel(models.Model):
    ...
    content = HTMLField()


, TinyMCE Django-, HTMLField . , Django-, « Django-» .



(1) Pillow



macOS



(env)User-Macbook:mysite user$ pip install Pillow


Windows



(env) C:\Users\Owner\Desktop\Code\env\mysite>pip install Pillow


, Django, , Django-. Django- , , , Pillow. Python Imaging Library .



env > mysite > mysite > settings.py



MEDIA_URL = '/media/'

MEDIA_ROOT = os.path.join(BASE_DIR, 'media')


URL settings.py.



env > mysite > mysite > urls.py



from django.contrib import admin
from django.urls import path, include
from django.conf import settings  # add this
from django.conf.urls.static import static  # add this

urlpatterns = [
    path('admin/', admin.site.urls),
    path('', include('main.urls')),
]

if settings.DEBUG:  # add this
    urlpatterns += static(settings.MEDIA_URL,
                          document_root=settings.MEDIA_ROOT)


urls.py URL- . , . , .



env > mysite > main > models.py



from django.db import models

class MyModel(models.Model):
    ...
    image = models.ImageField(upload_to='images/')


, , ImageField 'images/' . media > images, .



, Django « Django».



(3) Django Crispy Forms



macOS



(env)User-Macbook:mysite user$ pip install django-crispy-forms


Windows



(env) C:\Users\Owner\desktop\code\env\mysite>pip install django-crispy-forms


Django. , . django-crispy-forms, .



env > mysite > mysite > settings.py



INSTALLED_APPS = [
    ...
    'crispy_forms',
]

CRISPY_TEMPLATE_PACK = 'uni_form'


settings.py crispy_forms . , crispy forms .



crispy-. , (. .: INSTALLED_APPS), — , CSS- Bootstrap, Bootstrap django-crispy-forms.



env > mysite > main > templates > main > contact.html



{% load crispy_forms_tags %}

<form method="post">
    {% csrf_token %}
       {{form|crispy}}
       <button type="submit">Submit</button>
</form>


django-crispy-forms {{form}} Django. , crispy-, settings.py.



« Django Crispy Forms» , « Django- » Django-.



(4) Django Tables



macOS



(env)User-Macbook:mysite user$ pip install django-tables2


Windows



(env) C:\Users\Owner\desktop\code\env\mysite>pip install django-tables2


, Django- , . django-tables2 — Django .



env > mysite > mysite > settings.py



INSTALLED_APPS = [
    ...
    'django_tables2',
]


«Django tables» .



env > mysite > main > models.py



from django.db import models

class MyModel(models.Model):
    name = models.CharField(max_length=100, verbose_name="full name")
    email = models.EmailField(max_length=200)


, .



python manage.py makemigrations python manage.py migrate, Django. « Django» .



env > mysite > main > ( ) tables.py



import django_tables2 as tables
from .models import MyModel

class MyTable(tables.Table):
    class Meta:
        model = MyModel
        fields = ("name", "email", )


tables.py — main, django_tables2, tables. , .



env > mysite > main > views.py (-)



...
from django_tables2 import SingleTableView

from .models import MyModel
from .tables import MyTable

class ListView(SingleTableView):
    model = MyModel
    table_class = MyTable
    template_name = 'main/table.html'


-, views.py , , . .



env > mysite > main > urls.py (-)



from django.urls import path
from . import views

app_name = "main"

urlpatterns = [
    path("table", views.ListView.as_view()),
]


, urls.py URL . -, «- Django».



env > mysite > main > views.py (-)



...
from django_tables2 import SingleTableView

from .models import MyModel
from .tables import MyTable

def list(request):
    model = MyModel.objects.all()
    table = MyTable(model)
    return render(request=request, template_name="main/table.html", context={"model":model, "table":table})


- views.py. , .



env > mysite > main > urls.py (-)



from django.urls import path
from . import views

app_name = "main"   

urlpatterns = [
    path("table", views.list, name="list"),
]


URL urls.py .



env > mysite > main > templates > main > ( ) table.html



{ % load render_table from django_tables2 % }

<div >
    { % render_table table % }
</div >


, render_table from django_tables2 , render_table , .



- table, - table.



* CSS Bootstrap :



env > mysite > main > tables.py*



import django_tables2 as tables
from .models import MyModel

class MyTable(tables.Table):
    class Meta:
        model = MyModel
        template_name = "django_tables2/bootstrap4.html"
        fields = ("name", "email",)


, Bootstrap, tables.py. Lib > site-packages > django_tables2 > templates > django_tables2 .



env > mysite > main > templates > main > ( ) table.html



{% extends "main/header.html" %}

{% block content %}

{% load render_table from django_tables2 %}

<div class="container">
    {% render_table table %}
</div>

{% endblock %}


, , CDN- Bootstrap. Bootstrap .



, extends CDN- Bootstrap, «Django extends tag and block content» (. .: Django- extends ) « - Django ».



(5) Django Filter



macOS



(env)User-Macbook:mysite user$  pip install django-filter


Windows



(env) C:\Users\Owner\desktop\code\env\mysite>  pip install django-filter


, , , , . django-filter django-tables2, .



env > mysite > mysite > settings.py



INSTALLED_APPS = [
    ...
    'django_filters',
]


Django- . , django_filters, django_filter.



env > mysite > main > ( ) filters.py



import django_filters
from .models import MyModel

class MyFilter(django_filters.FilterSet):
    name = django_filters.CharFilter(lookup_expr='icontains')

    class Meta:
        model = MyModel
        fields = {'name', 'email'}


— main, filters.py, django_filters. , .



django_filters.CharFilter , , name .



django_filters.CharFilter(lookup_expr='iexact'), .



env > mysite > main > views.py (-)



...
from django_tables2 import SingleTableMixin
from django_filters.views import FilterView

from .models import MyModel
from .tables import MyTable
from .filters import MyFilter

class ListView(SingleTableMixin, FilterView):
    model = MyModel
    table_class = MyTable
    template_name = 'main/table.html'
    filterset_class = MyFilter


, -, FilterView django_filters.views django_tables2 SingleTableView SingleTableMixin. filter.py.



- ListView SingleTableMixin FilterView filterset_class, .



env > mysite > main > templates > main > table.html



{% load render_table from django_tables2 %}

<div>
    <br>
    <form action="" method="GET">
        {{filter.form}}
        <button type="submit">Filter</button>
    </form>
    <br>
    {% render_table table %}
</div>


- URL , HTML- form Django, . submit, . .



env > mysite > main > views.py (-)



...
from django_tables2.views import SingleTableMixin
from django_filter import FilterView

from .models import MyModel
from .tables import MyTable

def list(request):
    model = MyModel.objects.all()
    filterset_class = MyFilter(request.GET, model)
    table = MyTable(filterset_class.qs)
    return render(request=request, template_name="main/table.html", context={"model":model, "table":table, "filterset_class":filterset_class})


- , -, MyFilter «GET» . filterset_class , (. .: queryset) , filterset_class render.



env > mysite > main > templates > main > table.html



{% load render_table from django_tables2 %}

<div>
    <br>
    <form action="" method="GET">
        {{filterset_class.form}}
        <button type="submit">Filter</button>
    </form>
    <br>
    {% render_table table %}
</div>


- filterset_class, , , . , -.



, Django Crispy Forms, — « Django Crispy Forms».



(6) Python Decouple



macOS



(env)User-Macbook:mysite user$ pip install python-decouple


Windows



(env) C:\Users\Owner\desktop\code\env\mysite> pip install python-decouple


, , Python-, — python-decouple. .



Originalmente fue construido para Django, pero ahora se considera una "herramienta genérica" ​​para separar los ajustes de configuración.



env> mysite> (nuevo archivo) .env



SECRET_KEY =sdjioerb43buobnodhioh4i34hgip
DEBUG =True


env> mysite> mysite> settings.py



from decouple import config

SECRET_KEY = config('SECRET_KEY')
DEBUG = config('DEBUG', cast=bool)


Cree un nuevo archivo llamado .env en la carpeta de su proyecto, luego importe la configuración en el archivo settings.py. Luego, mueva todas las configuraciones y variables que desea ocultar en el archivo .env y llame a cada variable usando el formato de configuración python-desacoplamiento ('variable').



Si necesita más información, visite la página Secure Django Sensitive Variables Using Python Desacoplamiento .




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