import json from collections import UserList from django.conf import settings from django.core.exceptions import ValidationError from django.forms.renderers import get_default_renderer from django.utils import timezone from django.utils.html import escape, format_html_join from django.utils.safestring import mark_safe from django.utils.translation import gettext_lazy as _ def pretty_name(name): """Convert 'first_name' to 'First name'.""" if not name: return "" return name.replace("_", " ").capitalize() def flatatt(attrs): """ Convert a dictionary of attributes to a single string. The returned string will contain a leading space followed by key="value", XML-style pairs. In the case of a boolean value, the key will appear without a value. It is assumed that the keys do not need to be XML-escaped. If the passed dictionary is empty, then return an empty string. The result is passed through 'mark_safe' (by way of 'format_html_join'). """ key_value_attrs = [] boolean_attrs = [] for attr, value in attrs.items(): if isinstance(value, bool): if value: boolean_attrs.append((attr,)) elif value is not None: key_value_attrs.append((attr, value)) return format_html_join("", ' {}="{}"', sorted(key_value_attrs)) + format_html_join( "", " {}", sorted(boolean_attrs) ) class RenderableMixin: def get_context(self): raise NotImplementedError( "Subclasses of RenderableMixin must provide a get_context() method." ) def render(self, template_name=None, context=None, renderer=None): renderer = renderer or self.renderer template = template_name or self.template_name context = context or self.get_context() return mark_safe(renderer.render(template, context)) __str__ = render __html__ = render class RenderableFieldMixin(RenderableMixin): def as_field_group(self): return self.render() def as_hidden(self): raise NotImplementedError( "Subclasses of RenderableFieldMixin must provide an as_hidden() method." ) def as_widget(self): raise NotImplementedError( "Subclasses of RenderableFieldMixin must provide an as_widget() method." ) def __str__(self): """Render this field as an HTML widget.""" if self.field.show_hidden_initial: return self.as_widget() + self.as_hidden(only_initial=True) return self.as_widget() __html__ = __str__ class RenderableFormMixin(RenderableMixin): def as_p(self): """Render as
elements.""" return self.render(self.template_name_p) def as_table(self): """Render as