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Provides a set of tools for managing Search Engine Optimisation (SEO) for Django sites.
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README.rst

Django SEO tools

https://travis-ci.org/whyflyru/django-seo.svg?branch=master https://coveralls.io/repos/whyflyru/django-seo/badge.svg?branch=master

This is a set of SEO tools for Django. It allows you to associate metadata with:

  • absolute paths
  • model instances
  • model classes
  • views

Metadata can be edited in the admin in a centralised place, but also alongside any associated models.

This is however a framework, not an app. You therefore have complete control over the data you store. Here is an example of a definition:

from djangoseo import seo

class BasicMetadata(seo.Metadata):
    title          = seo.Tag(max_length=68, head=True)
    keywords       = seo.KeywordTag()
    description    = seo.MetaTag(max_length=155)
    heading        = seo.Tag(name="h1")
    subheading     = seo.Tag(name="h2")
    extra          = seo.Raw(head=True)

    # Adding some fields for facebook (opengraph)
    og_title       = seo.MetaTag(name="og:title", populate_from="title", verbose_name="facebook title")
    og_description = seo.MetaTag(name="og:description", populate_from="description", verbose_name='facebook description')

As you can see it is very flexible, but there is much more than this simple example.

Installation

The easiest way to install Django SEO is to use use pip, if you have it:

pip install django-seo

If you don't, and you prefer the old school easy_install, then the following command is for you:

easy_install django-seo

Add djangoseo to your INSTALLED_APPS:

INSTALLED_APPS = (
    ...
    'djangoseo',
)

Specify the path to migrations:

MIGRATION_MODULES = {
    'djangoseo': 'path.to.migrations',
}

Optionally enable SEO_USE_REDIRECTS and specify SEO_TRACKED_MODELS if you need a functional of redirects:

SEO_USE_REDIRECTS = True  # for tracking 404 errors

# for tracking models URLs
SEO_TRACKED_MODELS = (
    'your_app.models.Foo',
    'your_app.models.Bar'
)

Make migrations for django-seo models:

$ manage.py makemigrations

And migrate your database:

$ manage.py migrate

Usage

Adding SEO to your Django site is easy, you need to do two things:

  • Define which metadata fields you need
  • Add the output to your templates
  • Setup optional redirects

Metadata definition

You can define which fields appear in your metadata by creating a class that subclasses seo.Metadata. For example, create a new file called seo.py in an app on your site:

from djangoseo import seo

class MyMetadata(seo.Metadata):
    title       = seo.Tag(head=True, max_length=68)
    description = seo.MetaTag(max_length=155)
    keywords    = seo.KeywordTag()
    heading     = seo.Tag(name="h1")

Done! The above definition outlines four fields:

  • A <title> field, appearing in the head and limited to 68 characters (most search engines will the first 68 characters before any truncating takes place).
  • A <meta> tag for the description, with a maximum length of 155 (again, to appear in search engine results). <meta> tags are always set to appear in the head.
  • A <meta> tag for keywords. (you could also use seo.MetaTag).
  • A <h1> tag for headings, which does not appear in the document head.

If you run migrate you will also notice that four new models are created:

  • One to attach the metadata to paths
  • One to attach the metadata to model instances
  • One to attach the metadata to models
  • One to attach the metadata to views

Setting up the Admin

To view and edit these in Django's admin, add the following to your urls.py:

from djangoseo.admin import register_seo_admin
from django.contrib import admin
from myapp.seo import MyMetadata

register_seo_admin(admin.site, MyMetadata)

You should now see the four models in the admin, and will be able to add metadata for each of the fields you defined earlier.

Adding the output to your templates

Once again, there isn't much to do here. Simply pick a suitable template. Most often this will be base.html, which is extended by most other templates. After loading the seo template library, simply output all the head elements add the tag {% get_metadata %}, like this:

{% load seo %}
<html>
<head>
  {% get_metadata %}
</head>
<body>
    <p>I like gypsy Jazz!</p>
</body>
</html>

Note

Make sure you have "django.core.context_processors.request" listed in your site's TEMPLATE_CONTEXT_PROCESSORS setting. This provides {% get_metadata %} with the current path, allowing it to automatically select the relevant metadata.

Seeing it in action

Using the admin site, add some new metadata, attaching it to a (valid) path of your choice. Open up your browser and visit the path, to hopefully see something like this in the page source:

<html>
<head>
  <title>My Title</html>
  <meta name="description" content="My description" />
  <meta name="keywords" content="My, list, of, keywords" />
</head>
<body>
    <p>I like gypsy Jazz!</p>
</body>
</html>

Fine tuning the display

Notice that all of the head elements have automatically been added where the {% get_metadata %} tag was used. But you'll also notice that the heading is missing. Because the heading was not defined to appear in the head, it was not automatically added. To do that, you will have to explicitly add it to the template. Like this:

{% load seo %}
<html>
<head>
  {% get_metadata as my_meta %}
  {{ my_meta }}
</head>
<body>
    {{ my_meta.heading }}
    <p>I like gypsy Jazz!</p>
</body>
</html>

Now your page will show the heading you wanted. Notice that {% get_metadata %} no longer outputs the head metadata, but instead creates a new variable my_meta. The line following it ({{ my meta }}) outputs the head elements for you, and can be used to access other fields, such as the heading.

But what if your <h1> needs to have a class? You can also retrive the value directly, like this:

<h1 class="special">{{ my_meta.heading.value }}</h1>

Subdomains

django-seo supports subdomains, for example, via django-subdomains . In order to use subdomains support in your seo-model, specify the option use_subdomains:

from djangoseo import seo

class MyMetadata(seo.Metadata):
    title       = seo.Tag(head=True, max_length=68)
    description = seo.MetaTag(max_length=155)
    keywords    = seo.KeywordTag()
    heading     = seo.Tag(name="h1")

    class Meta:
        verbose_name = 'Meta tag'
        verbose_name_plural = 'Meta tags'
        use_subdomains = True

After that, you can specify a specific subdomain on which to display the metadata and redefine the subdomain in the template tag to output the data:

{% get_metadata SeoModelWithSubdomains under "msk" %}

Redirects

Currently supported are two types of redirects: when an occurs error 404 and when model changes its URL on the site.

If you need a redirection when an error occurs 404, enable SEO_USE_REDIRECTS and setup URL patterns for redirection in admin interface. It's like a standard URL patterns, but instead of finding a suitable view it creates a redirect in case of an error 404 for a given pattern. For example for pattern /news/([\w\-_]+)/ will be created a redirect for /news/foo/ and /news/bar/.

If you need a redirection when model changes its URL list the full path to the models in SEO_TRACKED_MODELS:

SEO_TRACKED_MODELS = (
    'your_app.models.Foo',
    'your_app.models.Bar'
)

The default class for redirection is django.http.response.HttpResponsePermanentRedirect, but if you want to change this behavior, you can change the HttpResponse classes used by the middleware by creating a subclass of RedirectFallbackMiddleware and overriding response_redirect_class.

Attention: each path to model must be direct and model must have a method get_absolute_url. Work such redirection follows: when path to model on site changed, it create redirection to old path. For example:

class Foo(models.model):
    ...
    slug = models.SlugField(max_length=50)

    def get_absolute_url(self):
        return reverse('name-of-foo-url', kwargs={'slug': self.slug})

If you create instance of Foo, redirection will not be created, but if change slug on instance of Foo django-seo creates new redirect for old instance path.

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