wagtail/docs/getting_started/tutorial.rst
Matt Westcott 4a84560a95 Add requirements.txt to project template.
While the project template is intended to be as generic as possible, and not everyone will want to use requirements.txt (some would prefer to use setup.py to define requirements, for example), we need some way to formally indicate that the project template is specific to Django 1.8.
2015-06-17 17:00:29 +01:00

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Your first Wagtail site
=======================
1. Install Wagtail and its dependencies::
pip install wagtail
2. Start your site::
wagtail start mysite
cd mysite
Wagtail provides a ``start`` command similar to
``django-admin.py startproject``. Running ``wagtail start mysite`` in
your project will generate a new ``mysite`` folder with a few
Wagtail-specific extras, including the required project settings, a
"home" app with a blank ``HomePage`` model and basic templates and a sample
"search" app.
3. Install project dependencies::
pip install -r requirements.txt
This ensures that you have the relevant version of Django for the project you've just created.
4. Create the database::
python manage.py migrate
If you haven't updated the project settings, this will be a SQLite
database file in the project directory.
5. Create an admin user::
python manage.py createsuperuser
6. ``python manage.py runserver`` If everything worked,
http://127.0.0.1:8000 will show you a welcome page
.. figure:: ../_static/images/tutorial/tutorial_1.png
:alt: Wagtail welcome message
You can now access the administrative area at ``/admin``
.. figure:: ../_static/images/tutorial/tutorial_2.png
:alt: Administrative screen
Extend the HomePage model
-------------------------
Out of the box you get a blank ``HomePage`` model and the "home" app has a
migration that creates a homepage and configures Wagtail to use it.
This example extends the HomePage model to add a body field.
.. code:: python
from django.db import models
from wagtail.wagtailcore.models import Page
from wagtail.wagtailcore.fields import RichTextField
from wagtail.wagtailadmin.edit_handlers import FieldPanel
class HomePage(Page):
body = RichTextField(blank=True)
content_panels = Page.content_panels + [
FieldPanel('body')
]
``body`` is defined as ``RichTextField``, a special Wagtail field. You
can use any of the `Django core fields <https://docs.djangoproject.com/en/1.8/ref/models/fields/>`__. ``content_panels`` define the
capabilities and the layout of the editing interface. :doc:`More on creating Page models. <../topics/creating_pages>`
Run ``python manage.py makemigrations``, then
``python manage.py migrate`` to update the database with your model
changes. You must run the above commands each time you make changes to
the model definition.
To reflect the model changes, edit
``core/templates/core/home_page.html``. Wagtail uses normal Django
templates to render each page type. It automatically generates a
suggestion by separating capital letters with underscores (e.g. HomePage
becomes home\_page.html).
.. code:: html+django
{% extends "base.html" %}
{% load static core_tags wagtailcore_tags %}
{% block body_class %}template-homepage{% endblock %}
{% block content %}
{{ self.body|richtext }}
{% endblock %}
.. figure:: ../_static/images/tutorial/tutorial_3.png
:alt: Updated homepage
A basic blog
------------
We are now ready to create a blog. To do so, run
``python manage.py startapp blog`` to create a new app in your Wagtail site.
Add the new ``blog`` app to ``INSTALLED_APPS`` in ``mysite/settings/base.py``.
The following example defines a basic blog post model in ``blog/models.py``
.. code:: python
from django.db import models
from wagtail.wagtailcore.models import Page
from wagtail.wagtailcore.fields import RichTextField
from wagtail.wagtailadmin.edit_handlers import FieldPanel
from wagtail.wagtailsearch import index
class BlogPage(Page):
date = models.DateField("Post date")
intro = models.CharField(max_length=250)
body = RichTextField(blank=True)
search_fields = Page.search_fields + (
index.SearchField('intro'),
index.SearchField('body'),
)
content_panels = Page.content_panels + [
FieldPanel('date'),
FieldPanel('intro'),
FieldPanel('body', classname="full")
]
Run ``python manage.py makemigrations`` and ``python manage.py migrate``.
.. figure:: ../_static/images/tutorial/tutorial_4.png
:alt: Create page screen
.. figure:: ../_static/images/tutorial/tutorial_5.png
:alt: Page edit screen
Image support
~~~~~~~~~~~~~
Wagtail provides support for images out of the box. To add them to your
model:
.. code:: python
from django.db import models
from wagtail.wagtailcore.models import Page
from wagtail.wagtailcore.fields import RichTextField
from wagtail.wagtailadmin.edit_handlers import FieldPanel
from wagtail.wagtailimages.edit_handlers import ImageChooserPanel
from wagtail.wagtailsearch import index
class BlogPage(Page):
main_image = models.ForeignKey(
'wagtailimages.Image',
null=True,
blank=True,
on_delete=models.SET_NULL,
related_name='+'
)
date = models.DateField("Post date")
intro = models.CharField(max_length=250)
body = RichTextField(blank=True)
search_fields = Page.search_fields + (
index.SearchField('intro'),
index.SearchField('body'),
)
content_panels = Page.content_panels + [
FieldPanel('date'),
ImageChooserPanel('main_image'),
FieldPanel('intro'),
FieldPanel('body'),
]
Adjust your BlogPage template to output the image:
.. code:: html+django
{% extends "base.html" %}
{% load static core_tags wagtailcore_tags wagtailimages_tags %}
{% block body_class %}templage-blogpage{% endblock %}
{% block content %}
<h1>{{ self.title }}</h1>
<p class="meta">{{ self.date }}</p>
{% if self.main_image %}
{% image self.main_image width-400 %}
{% endif %}
<div class="intro">{{ self.intro }}</div>
{{ self.body | richtext }}
{% endblock %}
.. figure:: ../_static/images/tutorial/tutorial_6.png
:alt: A blog post sample
You can read more about using images in templates in the
:doc:`docs <../topics/images/index>`.
Blog Index
~~~~~~~~~~
Let us extend the Blog app to provide an index.
.. code:: python
class BlogIndexPage(Page):
intro = RichTextField(blank=True)
content_panels = Page.content_panels + [
FieldPanel('intro', classname="full")
]
The above creates an index type to collect all our blog posts.
``blog/templates/blog/blog_index_page.html``
.. code:: html+django
{% extends "base.html" %}
{% load static core_tags wagtailcore_tags %}
{% block body_class %}template-blogindexpage{% endblock %}
{% block content %}
<h1>{{ self.title }}</h1>
<div class="intro">{{ self.intro }}</div>
{% endblock %}
Related items
~~~~~~~~~~~~~
Let's extend the BlogIndexPage to add related links. The related links
can be BlogPages or external links. Change ``blog/models.py`` to
.. code:: python
from django.db import models
from modelcluster.fields import ParentalKey
from wagtail.wagtailcore.models import Page, Orderable
from wagtail.wagtailcore.fields import RichTextField
from wagtail.wagtailadmin.edit_handlers import (FieldPanel,
InlinePanel,
MultiFieldPanel,
PageChooserPanel)
from wagtail.wagtailimages.edit_handlers import ImageChooserPanel
from wagtail.wagtailsearch import index
# ...
class LinkFields(models.Model):
link_external = models.URLField("External link", blank=True)
link_page = models.ForeignKey(
'wagtailcore.Page',
null=True,
blank=True,
related_name='+'
)
@property
def link(self):
if self.link_page:
return self.link_page.url
else:
return self.link_external
panels = [
FieldPanel('link_external'),
PageChooserPanel('link_page'),
]
class Meta:
abstract = True
# Related links
class RelatedLink(LinkFields):
title = models.CharField(max_length=255, help_text="Link title")
panels = [
FieldPanel('title'),
MultiFieldPanel(LinkFields.panels, "Link"),
]
class Meta:
abstract = True
class BlogIndexRelatedLink(Orderable, RelatedLink):
page = ParentalKey('BlogIndexPage', related_name='related_links')
class BlogIndexPage(Page):
intro = RichTextField(blank=True)
content_panels = Page.content_panels + [
InlinePanel('related_links', label="Related links"),
]
.. figure:: ../_static/images/tutorial/tutorial_7.png
:alt: Blog index edit screen
Extend ``blog_index_page.html`` to show related items
.. code:: html+django
{% extends "base.html" %}
{% load static core_tags wagtailcore_tags %}
{% block body_class %}template-blogindexpage{% endblock %}
{% block content %}
<h1>{{ self.title }}</h1>
<div class="intro">{{ self.intro }}</div>
{% if self.related_links.all %}
<ul>
{% for item in self.related_links.all %}
<li><a href="{{ item.link }}">{{ item.title }}</a></li>
{% endfor %}
</ul>
{% endif %}
{% endblock %}
You now have a fully working blog with featured blog posts.
.. figure:: ../_static/images/tutorial/tutorial_8.png
:alt: Barebones blog index
Where next
----------
- Read the Wagtail :doc:`topics <../topics/index>` and :doc:`reference <../reference/index>` documentation
- Learn how to implement :doc:`StreamField <../topics/streamfield>` for freeform page content
- Browse through the :doc:`advanced topics <../advanced_topics/index>` section and read :doc:`third-party tutorials <../advanced_topics/third_party_tutorials>`