Source code for django.forms.renderers

import functools
import warnings
from pathlib import Path

from django.conf import settings
from django.template.backends.django import DjangoTemplates
from django.template.loader import get_template
from django.utils.deprecation import RemovedInDjango60Warning
from django.utils.functional import cached_property
from django.utils.module_loading import import_string


@functools.lru_cache
def get_default_renderer():
    renderer_class = import_string(settings.FORM_RENDERER)
    return renderer_class()


[docs] class BaseRenderer: form_template_name = "django/forms/div.html" formset_template_name = "django/forms/formsets/div.html" field_template_name = "django/forms/field.html"
[docs] def get_template(self, template_name): raise NotImplementedError("subclasses must implement get_template()")
[docs] def render(self, template_name, context, request=None): template = self.get_template(template_name) return template.render(context, request=request).strip()
class EngineMixin: def get_template(self, template_name): return self.engine.get_template(template_name) @cached_property def engine(self): return self.backend( { "APP_DIRS": True, "DIRS": [Path(__file__).parent / self.backend.app_dirname], "NAME": "djangoforms", "OPTIONS": {}, } )
[docs] class DjangoTemplates(EngineMixin, BaseRenderer): """ Load Django templates from the built-in widget templates in django/forms/templates and from apps' 'templates' directory. """ backend = DjangoTemplates
[docs] class Jinja2(EngineMixin, BaseRenderer): """ Load Jinja2 templates from the built-in widget templates in django/forms/jinja2 and from apps' 'jinja2' directory. """ @cached_property def backend(self): from django.template.backends.jinja2 import Jinja2 return Jinja2
# RemovedInDjango60Warning.
[docs] class DjangoDivFormRenderer(DjangoTemplates): """ Load Django templates from django/forms/templates and from apps' 'templates' directory and use the 'div.html' template to render forms and formsets. """ def __init__(self, *args, **kwargs): warnings.warn( "The DjangoDivFormRenderer transitional form renderer is deprecated. Use " "DjangoTemplates instead.", RemovedInDjango60Warning, ) super().__init__(*args, **kwargs)
# RemovedInDjango60Warning.
[docs] class Jinja2DivFormRenderer(Jinja2): """ Load Jinja2 templates from the built-in widget templates in django/forms/jinja2 and from apps' 'jinja2' directory. """ def __init__(self, *args, **kwargs): warnings.warn( "The Jinja2DivFormRenderer transitional form renderer is deprecated. Use " "Jinja2 instead.", RemovedInDjango60Warning, ) super().__init__(*args, **kwargs)
[docs] class TemplatesSetting(BaseRenderer): """ Load templates using template.loader.get_template() which is configured based on settings.TEMPLATES. """ def get_template(self, template_name): return get_template(template_name)