Source code for dal_select2_taggit.widgets

"""Widgets for Select2 and django-taggit."""

from dal_select2.widgets import TagSelect2

from django import VERSION
from django.utils import six


[docs]class TaggitSelect2(TagSelect2): """Select2 tag widget for taggit's TagField."""
[docs] def value_from_datadict(self, data, files, name): """Handle multi-word tag. Insure there's a comma when there's only a single multi-word tag, or tag "Multi word" would end up as "Multi" and "word". """ value = super(TaggitSelect2, self).value_from_datadict(data, files, name) if value and ',' not in value: value = '%s,' % value return value
[docs] def option_value(self, value): """Return tag.name attribute of value.""" return value.tag.name if hasattr(value, 'tag') else value
[docs] def render_options(self, *args): """ Render only selected tags. Remove when Django < 1.10 support is dropped. """ selected_choices_arg = 1 if VERSION < (1, 10) else 0 selected_choices = args[selected_choices_arg] # When the data hasn't validated, we get the raw input here if isinstance(selected_choices, six.text_type): choices = [c.strip() for c in selected_choices.split(',')] else: # Filter out None values, not needed for autocomplete choices = [c.tag.name for c in selected_choices if c] options = [ '<option value="%s" selected="selected">%s</option>' % ( c, c) for c in choices ] return '\n'.join(options)