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django_inlines are for embedding anything you'd like into text in your django apps.

branch: master
README.rst

What's this then?

Django Inlines is an app to let you use include other objects and special bits in your text fields.

It uses a registration style so it's easy to set up inlines for any of your apps or third party applications.

Example:

Register your inlines:

from django_inlines import inlines
from django_inlines.samples import YoutubeInline

inlines.registry.register('youtube', YoutubeInline)

In your entry.body:

<p>Check out my new video:</p>

{{ youtube http://www.youtube.com/watch?v=RXJKdh1KZ0w }}

In your template:

{% load inlines %}
{% process_inlines entry.body %}

Output:

<p>Check out my new video:</p>

<div class="youtube_video">
  <object width="480" height="295">
    <param name="movie" value="http://www.youtube.com/v/RXJKdh1KZ0w&hl=en&fs=1"></param>
    <param name="allowFullScreen" value="true"></param>
    <param name="allowscriptaccess" value="always"></param>
    <embed src="http://www.youtube.com/v/RXJKdh1KZ0w&hl=en&fs=1" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="480" height="295"></embed>
  </object>
</div>

Creating inlines

An inline can be any class that provides a render method and has an __init__ that can take these arguments:

__init__(self, value, variant=None, context=None, template_dir="", **kwargs)

Django Inlines comes with the base inline classes you can subclass to create your own inlines.

inlines.InlineBase

A base class for overriding to provide simple inlines. The render method is the only required override. It should return a string. or at least something that can be coerced into a string.

inlines.TemplateInline

A base class for overriding to provide templated inlines. The get_context method is the only required override. It should return dictionary-like object that will be fed to the template as the context.

If you instantiate your inline class with a context instance, it'll use that to set up your base context.

Any extra arguments assigned to your inline are passed directly though to the context.

See samples.YoutubeInline for an example of a TemplateInline subclass.

Template inlines render a template named the same as the name they were registered as. The youtube inline uses inlines/youtube.html

inlines.ModelInline

A base class for creating inlines for Django models. The model class attribute is the only required override. It should be assigned a django model class.

A sample model inline:

from myapp.models import Photo

class PhotoInline(inlines.ModelInline):
  model = Photo

inlines.registry.register('photo', PhotoInline)

And in use:

{{ photo 1 }}

ModelInlines take an object's id as it's only value and pass that object into the context as object.

Since model inlines will be used very often there is a inline_for_model shortcut method for this. It can be used to register models as inlines directly:

from django_inlines.inlines import inline_for_model
inlines.registry.register('photo', inline_for_model(Photo))

Inline syntax

Django inlines use this syntax {{ name[:variant] value [argument=value ...] }}

name

The name the inline has been registered under. Template inlines use this as the base name for their templates.

value

Any string. It's the requirement of the inline class to parse this string.

variant optional

Variants can be used by the inline class to alter behavior. By default any inline that renders a template uses this to check for an alternate template. {{ youtube:hd <videourl> }} would first check for inlines/youtube.hd.html before checking for inlines/youtube.html.

arguments optional

Any number of key=value pairs are allowed at the end of an inline. These are passed directly to the template as context vars. {{ youtube:hd <videourl> width=400 height=200 }}

The template tag

Searches through the provided content and applies inlines where ever they are found. The current context of your template is passed into to your inline templates.

Syntax:

{% process_inlines entry.body [in template_dir] [as varname] }

Example:

{% process_inlines entry.body %}

{% process_inlines entry.body as body %}

{% process_inlines entry.body in 'inlines/sidebar' %}

{% process_inlines entry.body in 'inlines/sidebar' as body %}

If given the optional template_dir argument inlines will first check in that directory for their template before falling back to inlines/<inline_name>.html

If given [as varname] the tag won't return anything but will instead populate varname in your context. Then you can apply filters or test against the output.

Settings

You can override some settings within your settings.py:

  • INLINE_DEBUG = True: Normally a error with your inlines would fail silently. Turning this to True would raise all exceptions your inlines might produce. Default: False
  • INLINES_START_TAG = '{{': The start tag used in the inline syntax. Default: '{{'
  • INLINES_END_TAG = '}}': The end tag used in the inline syntax. Default: '}}'

To do:

Warning: Django inlines is still under development. Every thing here is well tested and functional, but stability isn't promised yet. Important bits don't exist yet. These include:

  • Better documentation.
  • Admin style auto discovery of inlines.py in your apps.
  • Adding validation hooks to the base classes.
  • A model field and a widget for validation and improved adding in the admin.
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