id stringlengths 16 145 | text stringlengths 1 179k | title stringclasses 1
value |
|---|---|---|
Django_meta/classbasedviews_38_0.txt | from django.urls import path
from books.views import BookListView | |
Django_meta/django_models_4_3.txt | del.
[ ` ForeignKey ` ](../../../ref/models/fields/#django.db.models.ForeignKey
"django.db.models.ForeignKey") requires a positional argument: the class to
which the model is related.
For example, if a ` Car ` model has a ` Manufacturer ` – that is, a `
Manufacturer ` makes multiple cars but each ` Car ` only ha... | |
Django_meta/tutorialdjango_295_0.txt | As shown in the previous section, page templates can contain procedural
directives like ` {% for message in message_list %} ` and ` {% if message_list
%} ` , rather than only passive, declarative elements like ` {% url %} ` and `
{% block %} ` . As a result, you can have programming errors inside templates
as with any ... | |
Django_meta/tutorialdjango_172_0.txt |
4. In ` templates/hello/hello_there.html ` , add the following lines after the ` <title> ` element. The ` {% load static %} ` tag is a custom Django template tag set, which allows you to use ` {% static %} ` to refer to a file like the stylesheet. | |
Django_meta/tutorialdjango_212_0.txt | With the code snippet in place, you can quickly create templates for the Home,
About, and Contact pages. | |
Django_meta/tutorialdjango_204_0.txt | 2. In the list that appears, select **html** . (The option may appear as "html.json" in the **Existing Snippets** section of the list if you've created snippets previously.) | |
Django_meta/classbasedviews_10_0.txt | Toggle Light / Dark / Auto color theme | |
Django_meta/tutorialdjango_229_0.txt | ## Work with data, data models, and migrations | |
Django_meta/introduction_12_0.txt | * User authentication
* Testing
* Database models, forms, URL routes, and templates
* Admin interface
* Security and performance upgrades
* Support for multiple database backends | |
Django_meta/tutorialdjango_230_0.txt | Many web apps work with information stored in a database, and Django makes it
easy to represent the objects in that database using _models_ . In Django, a
model is a Python class, derived from ` django.db.models.Model ` , that
represents a specific database object, typically a table. You place these
classes in an app's... | |
Django_meta/tutorialdjango_26_0.txt | 1. On your file system, create a project folder for this tutorial, such as ` hello_django ` . | |
Django_meta/classbasedviews_0_0.txt | [ Django ](https://www.djangoproject.com/) | |
Django_meta/tutorialdjango_165_0.txt | urlpatterns += staticfiles_urlpatterns() | |
Django_meta/tutorialdjango_108_0.txt | content = "Hello there, " + clean_name + "! It's " + formatted_now
return HttpResponse(content) | |
Django_meta/classbasedviews_36_0.txt | Suppose somebody wants to access our book library over HTTP using the views as
an API. The API client would connect every now and then and download book data
for the books published since last visit. But if no new books appeared since
then, it is a waste of CPU time and bandwidth to fetch the books from the
database, r... | |
Django_meta/tutorialdjango_169_0.txt | The reason for this extra subfolder is that when you deploy the Django project
to a production server, you collect all the static files into a single folder
that's then served by a dedicated static file server. The ` static/hello `
subfolder ensures that when the app's static files are collected, they're in
an app-spec... | |
Django_meta/modelspy_10_0.txt | class Meta:
constraints = [
UniqueConstraint(
Lower('name'),
name='language_name_case_insensitive_unique',
violation_error_message = "Language already exists (case insensitive match)"
),
] | |
Django_meta/classbasedviews_4_0.txt | Toggle theme (current theme: light) | |
Django_meta/tutorialdjango_236_0.txt | ### Types of databases | |
Django_meta/tutorialdjango_255_0.txt | from django import forms
from hello.models import LogMessage | |
Django_meta/modelspy_14_0.txt | display_genre.short_description = 'Genre' | |
Django_meta/tutorialdjango_76_0.txt |
4. The ` web_project ` folder also contains a ` urls.py ` file, which is where URL routing is actually handled. Open ` web_project/urls.py ` and modify it to match the following code (you can retain the instructive comments if you like). This code pulls in the app's ` hello/urls.py ` using ` django.urls.include ` , wh... | |
Django_meta/tutorialdjango_1_0.txt | * [ Docs ](/docs)
* [ Updates ](/updates)
* [ Blog ](/blogs)
* [ API ](/api)
* [ Extensions ](https://marketplace.visualstudio.com/VSCode)
* [ FAQ ](/docs/supporting/faq)
* [ Learn ](/learn)
* [ Search ](/Search) | |
Django_meta/tutorialdjango_140_0.txt | ## Use a template to render a page | |
Django_meta/tutorialdjango_225_0.txt | def contact(request):
return render(request, "hello/contact.html") | |
Django_meta/tutorialdjango_138_0.txt | * **Peek Definition** ( ⌥F12 (Windows Alt+F12 , Linux Ctrl+Shift+F10 ) , also on the right-click context menu), is similar, but displays the class definition directly in the editor (making space in the editor window to avoid obscuring any code). Press Escape to close the Peek window or use the **x** in the upp... | |
Django_meta/tutorialdjango_163_0.txt | from django.contrib.staticfiles.urls import staticfiles_urlpatterns | |
Django_meta/tutorialdjango_103_0.txt | import re
from django.utils.timezone import datetime
from django.http import HttpResponse | |
Django_meta/tutorialdjango_261_0.txt | input[name=message] {
width: 80%;
} | |
Django_meta/introduction_2_0.txt | # Introduction | |
Django_meta/tutorialdjango_283_0.txt | class HomeListView(ListView):
"""Renders the home page, with a list of all messages."""
model = LogMessage | |
Django_meta/django_models_1_0.txt | [ Django ](https://www.djangoproject.com/)
The web framework for perfectionists with deadlines.
__ Menu
Toggle theme (current theme: auto)
Toggle theme (current theme: light)
Toggle theme (current theme: dark)
Toggle Light / Dark / Auto color theme
* [ Overview ](https://www.djangoproject.com/start/overview/)
... | |
Django_meta/tutorialdjango_79_0.txt |
5. Save all modified files. | |
Django_meta/tutorialdjango_23_0.txt | * (All operating systems) A download from [ python.org ](https://www.python.org/downloads/) ; typically use the **Download Python 3.9.1** button that appears first on the page (or whatever is the latest version).
* (Linux) The built-in Python 3 installation works well, but to install other Python packages you must run ... | |
Django_meta/tutorialdjango_330_0.txt | ## Next steps | |
Django_meta/tutorialdjango_21_0.txt | 1. Install the [ Python extension ](https://marketplace.visualstudio.com/items?itemName=ms-python.python) . | |
Django_meta/tutorialdjango_250_0.txt |
Take a look in the ` migrations ` folder to see the scripts that `
makemigrations ` generates. You can also look at the database itself to see
that the schema is updated. | |
Django_meta/modelspy_11_0.txt | class Book(models.Model):
"""Model representing a book (but not a specific copy of a book)."""
title = models.CharField(max_length=200)
author = models.ForeignKey('Author', on_delete=models.RESTRICT, null=True)
# Foreign Key used because book can only have one author, but authors can have multiple books.
# Author as a ... | |
Django_meta/introduction_47_0.txt | ## Community | |
Django_meta/django_models_8_6.txt | ract base classes. Overriding an
inherited field which is referenced by an inherited [ ` Manager `
](../managers/#django.db.models.Manager "django.db.models.Manager") may cause
subtle bugs. See [ custom managers and model inheritance
](../managers/#custom-managers-and-inheritance) .
Note
Some fields define extra att... | |
Django_meta/tutorialdjango_29_0.txt | # macOS
python3 -m venv .venv
source .venv/bin/activate | |
Django_meta/classbasedviews_19_0.txt | * [ Introduction to class-based views ](intro/)
* [ Built-in class-based generic views ](generic-display/)
* [ Form handling with class-based views ](generic-editing/)
* [ Using mixins with class-based views ](mixins/) | |
Django_meta/tutorialdjango_304_0.txt | ## Optional activities | |
Django_meta/tutorialdjango_160_0.txt | When switching to production, navigate to ` settings.py ` , set ` DEBUG=False
` , and change ` ALLOWED_HOSTS = ['*'] ` to allow specific hosts. This may
result in additional work when using containers. For details, see [ Issue 13
](https://github.com/microsoft/python-sample-vscode-django-tutorial/issues/13)
. | |
Django_meta/tutorialdjango_201_0.txt | ### Create a code snippet | |
Django_meta/tutorialdjango_331_0.txt | Congratulations on completing this walkthrough of working with Django in
Visual Studio Code! | |
Django_meta/tutorialdjango_266_0.txt | # Add this code elsewhere in the file:
def log_message(request):
form = LogMessageForm(request.POST or None) | |
Django_meta/modelspy_0_0.txt | from django.db import models | |
Django_meta/tutorialdjango_256_0.txt | class LogMessageForm(forms.ModelForm):
class Meta:
model = LogMessage
fields = ("message",) # NOTE: the trailing comma is required | |
Django_meta/tutorialdjango_271_0.txt |  | |
Django_meta/tutorialdjango_196_0.txt | .navbar a {
text-decoration: none;
color: inherit;
} | |
Django_meta/tutorialdjango_193_0.txt | <div class="body-content">
{% block content %}
{% endblock %}
<hr/>
<footer>
<p>© 2018</p>
</footer>
</div>
</body>
</html> | |
Django_meta/tutorialdjango_9_0.txt | * C#
* [ Intro Videos ](/docs/csharp/introvideos-csharp)
* [ Get Started ](/docs/csharp/get-started)
* [ Navigate and Edit ](/docs/csharp/navigate-edit)
* [ IntelliCode ](/docs/csharp/intellicode)
* [ Refactoring ](/docs/csharp/refactoring)
* [ Formatting and Linting ](/docs/csharp/formatting-linting)
* [ Project Manag... | |
Django_meta/classbasedviews_71_0.txt | Join the community on the Django Forum.
[ Ticket tracker ](https://code.djangoproject.com/) | |
Django_meta/django_models_20_0.txt | ## Support Us
* [ Sponsor Django ](https://www.djangoproject.com/fundraising/)
* [ Corporate membership ](/foundation/corporate-membership/)
* [ Official merchandise store ](https://django.threadless.com/)
* [ Benevity Workplace Giving Program ](/foundation/donate/#benevity-giving)
[ Django ](https://www.dja... | |
Django_meta/tutorialdjango_96_0.txt | Debugging gives you the opportunity to pause a running program on a particular
line of code. When a program is paused, you can examine variables, run code in
the Debug Console panel, and otherwise take advantage of the features
described on [ Debugging ](/docs/python/debugging) . Running the debugger also
automatically... | |
Django_meta/tutorialdjango_139_0.txt |  | |
Django_meta/tutorialdjango_156_0.txt | 7. Also try navigating to a /hello/name URL using a name like ` <a%20value%20that%20could%20be%20HTML> ` to see Django's automatic escaping at work. The "name" value shows up as plain text in the browser rather than as rendering an actual element. | |
Django_meta/tutorialdjango_238_0.txt | For these reasons, consider using a production-level data store such as [
PostgreSQL ](https://www.postgresql.org/) , [ MySQL ](https://www.mysql.com/)
, and [ SQL Server ](https://www.microsoft.com/en-ca/sql-server/) . For
information on Django's support for other databases, see [ Database setup
](https://docs.djangop... | |
Django_meta/django_models_4_5.txt | estriction applies to the foreign key to the target model (this would be ` Person ` in our example).
* For a model which has a many-to-many relationship to itself through an intermediary model, two foreign keys to the same model are permitted, but they will be treated as the two (different) sides of the many-to-man... | |
Django_meta/tutorialdjango_191_0.txt | <!DOCTYPE html>
<html>
<head>
<meta charset="utf-8"/>
<title>{% block title %}{% endblock %}</title>
{% load static %}
<link rel="stylesheet" type="text/css" href="{% static 'hello/site.css' %}"/>
</head> | |
Django_meta/django_models_3_0.txt | ## Using models ¶
Once you have defined your models, you need to tell Django you’re going to
_use_ those models. Do this by editing your settings file and changing the [ `
INSTALLED_APPS ` ](../../../ref/settings/#std-setting-INSTALLED_APPS) setting
to add the name of the module that contains your ` models.py ` .
... | |
Django_meta/introduction_0_0.txt | [ Django for Beginners ](/) | |
Django_meta/tutorialdjango_220_0.txt | 5. In the app's ` urls.py ` , add routes for the /about and /contact pages. Be mindful that the ` name ` argument to the ` path ` function defines the name with which you refer to the page in the ` {% url %} ` tags in the templates. | |
Django_meta/tutorialdjango_237_0.txt | By default, Django includes a ` db.sqlite3 ` file for an app's database that's
suitable for development work. As described on [ When to use SQLite
](https://www.sqlite.org/whentouse.html) (sqlite.org), SQLite works fine for
low to medium traffic sites with fewer than 100 K hits/day, but is not
recommended for higher vo... | |
Django_meta/tutorialdjango_170_0.txt | 3. In the ` static/hello ` folder, create a file named ` site.css ` with the following contents. After entering this code, also observe the syntax highlighting that VS Code provides for CSS files, including a color preview. | |
Django_meta/classbasedviews_42_0.txt |
class BookListView(ListView):
model = Book | |
Django_meta/tutorialdjango_213_0.txt | 1. In the ` templates/hello ` folder, create a new file named ` home.html ` , Then start typing ` djext ` to see the snippet appear as a completion: | |
Django_meta/tutorialdjango_296_0.txt | Fortunately, the Python Extension for VS Code provides template debugging when
you have ` "django": true ` in the debugging configuration (as you do
already). The following steps demonstrate this capability: | |
Django_meta/classbasedviews_80_0.txt | ## Get Help | |
Django_meta/classbasedviews_26_0.txt |
Any arguments passed to [ ` as_view() ` ](../../ref/class-based-
views/base/#django.views.generic.base.View.as_view
"django.views.generic.base.View.as_view") will override attributes set on the
class. In this example, we set ` template_name ` on the ` TemplateView ` . A
similar overriding pattern can be used for th... | |
Django_meta/tutorialdjango_123_0.txt | 7. On the left side of the VS Code window, you see a **Variables** pane that shows local variables, such as ` now ` , as well as arguments, such as ` name ` . Below that are panes for **Watch** , **Call Stack** , and **Breakpoints** (see [ VS Code debugging ](/docs/editor/debugging) for details). In the **Locals** sect... | |
Django_meta/introduction_39_0.txt | def make_my_website:
...
print("All done!") # new | |
Django_meta/tutorialdjango_86_0.txt | 2. Select the link and VS Code will prompt for a debug configuration. Select **Django** from the dropdown and VS Code will populate a new ` launch.json ` file with a Django run configuration. The ` launch.json ` file contains a number of debugging configurations, each of which is a separate JSON object within the ` con... | |
Django_meta/tutorialdjango_245_0.txt | def __str__(self):
"""Returns a string representation of a message."""
date = timezone.localtime(self.log_date)
return f"'{self.message}' logged on {date.strftime('%A, %d %B, %Y at %X')}" | |
Django_meta/django_meta_5_0.txt | ### ` db_table ` ¶
` Options. ` ` db_table ` ¶
The name of the database table to use for the model:
db_table = 'music_album'
| |
Django_meta/tutorialdjango_298_0.txt |  | |
Django_meta/tutorialdjango_278_0.txt | .message_list th,td {
text-align: left;
padding-right: 15px;
} | |
Django_meta/tutorialdjango_240_0.txt | A Django model is again a Python class derived from ` django.db.model.Models `
, which you place in the app's ` models.py ` file. In the database, each model
is automatically given a unique ID field named ` id ` . All other fields are
defined as properties of the class using types from ` django.db.models ` such
as ` Ch... | |
Django_meta/django_models_8_2.txt | ./ref/django-admin/#django-admin-migrate) ).
If you don’t specify a [ ` related_name `
](../../../ref/models/fields/#django.db.models.ForeignKey.related_name
"django.db.models.ForeignKey.related_name") attribute for a field in an
abstract base class, the default reverse name will be the name of the child
class follow... | |
Django_meta/tutorialdjango_119_0.txt |  | |
Django_meta/tutorialdjango_0_0.txt | Skip to content __ [ Visual Studio Code ](/) | |
Django_meta/tutorialdjango_232_0.txt | 1. Make changes to the models in your ` models.py ` file.
2. Run ` python manage.py makemigrations ` to generate scripts in the ` migrations ` folder that migrate the database from its current state to the new state.
3. Run ` python manage.py migrate ` to apply the scripts to the actual database. | |
Django_meta/introduction_43_0.txt | You can only trust some of what you read online, of course, and with
experience, you will develop the context to see how the pieces of Django and
code fit together. | |
Django_meta/tutorialdjango_85_0.txt |  | |
Django_meta/tutorialdjango_171_0.txt | .message {
font-weight: 600;
color: blue;
} | |
Django_meta/modelspy_9_0.txt | def __str__(self):
"""String for representing the Model object (in Admin site etc.)"""
return self.name | |
Django_meta/classbasedviews_33_0.txt | urlpatterns = [
path("about/", AboutView.as_view()),
] | |
Django_meta/tutorialdjango_184_0.txt | Because most web apps have more than one page, and because those pages
typically share many common elements, developers separate those common
elements into a base page template that other page templates then extend.
(This is also called template inheritance, meaning the extended pages inherit
elements from the base pag... | |
Django_meta/tutorialdjango_114_0.txt | 4. Start the debugger by selecting the **Run** > **Start Debugging** menu command, or selecting the green **Start Debugging** arrow next to the list ( F5 ): | |
Django_meta/classbasedviews_6_0.txt | Toggle Light / Dark / Auto color theme | |
Django_meta/tutorialdjango_57_0.txt |
When you run the server the first time, it creates a default SQLite database
in the file ` db.sqlite3 ` that is intended for development purposes, but can
be used in production for low-volume web apps. For additional information
about databases, see the Types of databases section. | |
Django_meta/tutorialdjango_43_0.txt |
9. Install Django in the virtual environment by running the following command in the VS Code Terminal: | |
Django_meta/tutorialdjango_101_0.txt | URL routes are case-sensitive. For example, the route ` /hello/<name> ` is
distinct from ` /Hello/<name> ` . If you want the same view function to handle
both, define paths for each variant. | |
Django_meta/introduction_28_0.txt | In **Chapter 3** , we make, test, and deploy a _Pages_ app that introduces
templates and class-based views. Templates are how Django allows for DRY
(Don’t Repeat Yourself) development with HTML and CSS, while class-based views
are quite powerful yet require minimal code. We also add our first tests and
deploy the websi... | |
Django_meta/classbasedviews_67_0.txt | Handy when looking for specific information.
[ django-users mailing list ](https://groups.google.com/group/django-users/) | |
Django_meta/tutorialdjango_2_0.txt | * [   ](/Search "Search")
*   | |
Django_meta/tutorialdjango_282_0.txt | # Remove the old home function if you want; it's no longer used | |
Django_meta/tutorialdjango_292_0.txt |  | |
Django_meta/tutorialdjango_143_0.txt | In Django, a template is an HTML file that contains placeholders for values
that the code provides at run time. The Django templating engine then takes
care of making the substitutions when rendering the page, and provides
automatic escaping to prevent XSS attacks (that is, if you tried using HTML in
a data value, you ... |
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