django-template-field

A Django template field with a manager to return the rendered template.

Documentation

The full documentation is at https://django-template-field.readthedocs.org.

Quickstart

Install django-template-field:

pip install django-template-field

Then use it in a project:

from django.db import models

from templatefield import fields, managers


class TemplatedText(models.Model):
    value = fields.TemplateTextField()

    # Manager that returns rendered templates. This will be the default
    # manager since it is first. Now, when accessed via `Related Models`_
    # this field will also be rendered.
    objects_rendered = managers.RenderTemplateManager()
    # Django's default manager returns unrendered templates.
    objects_unrendered = models.Manager()

Extra context can be added in settings like so:

TEMPLATE_FIELD_CONTEXT = { 'template_var': value }

Context can also be added to querysets like so:

TemplatedText.objects_rendered.with_context({'template_var2': value2})

If you dump fixtures with RenderTemplateManager as the default manager, django will render the exported data. To work around that, create an alternate settings file for your project with the following setting:

TEMPLATE_FIELD_RENDER = False

Then you can dump your unrendered data like so:

./manage.py dumpdata myapp.mymodel --settings=myapp.dump_settings

Related Models

If a TemplateTextField will be accessed from another model through a ForeignKey relationship, Django will use the default manager to render the TemplateTextField. For example, if we define this additional model:

class RelatedToTemplatedText(models.Model):
    templated_text = models.ForeignKey(TemplatedText)

We can expect to see fields accessed via templated_text rendered properly.

Admin

Using RenderTemplateManager as the default has the unfortunate side effect of rendering your fields in the Django admin, so we have provided a class from which you can inherit to solve that problem. Ex:

from templatefield import admin

class TemplatedTextAdmin(admin.UnrenderedAdmin):
    ...

Running Tests

source <YOURVIRTUALENV>/bin/activate
(myenv) $ pip install -r requirements/test.txt
(myenv) $ python runtests.py