Source code for templatetags.crispy_forms_filters
# -*- coding: utf-8 -*-
from django import template
from django.conf import settings
from django.forms import forms
from django.forms.formsets import BaseFormSet
from django.template import Context
from django.template.loader import get_template
from django.utils.lru_cache import lru_cache
from django.utils.safestring import mark_safe
from crispy_forms.exceptions import CrispyError
from crispy_forms.utils import TEMPLATE_PACK, flatatt
register = template.Library()
[docs]@register.filter(name='as_crispy_errors')
def as_crispy_errors(form, template_pack=TEMPLATE_PACK):
"""
Renders only form errors the same way as django-crispy-forms::
{% load crispy_forms_tags %}
{{ form|as_crispy_errors }}
or::
{{ form|as_crispy_errors:"bootstrap" }}
"""
if isinstance(form, BaseFormSet):
template = get_template('%s/errors_formset.html' % template_pack)
c = Context({'formset': form}).flatten()
else:
template = get_template('%s/errors.html' % template_pack)
c = Context({'form': form}).flatten()
return template.render(c)
[docs]@register.filter(name='as_crispy_field')
def as_crispy_field(field, template_pack=TEMPLATE_PACK, label_class="", field_class=""):
"""
Renders a form field like a django-crispy-forms field::
{% load crispy_forms_tags %}
{{ form.field|as_crispy_field }}
or::
{{ form.field|as_crispy_field:"bootstrap" }}
"""
if not isinstance(field, forms.BoundField) and settings.DEBUG:
raise CrispyError('|as_crispy_field got passed an invalid or inexistent field')
attributes = {
'field': field,
'form_show_errors': True,
'form_show_labels': True,
'label_class': label_class,
'field_class': field_class,
}
helper = getattr(field.form, 'helper', None)
template_path = None
if helper is not None:
attributes.update(helper.get_attributes(template_pack))
template_path = helper.field_template
if not template_path:
template_path = '%s/field.html' % template_pack
template = get_template(template_path)
c = Context(attributes).flatten()
return template.render(c)
[docs]@register.filter(name='flatatt')
def flatatt_filter(attrs):
return mark_safe(flatatt(attrs))