from django import forms
class DynamicArrayWidget(forms.TextInput):
template_name = "django_better_admin_arrayfield/forms/widgets/dynamic_array.html"
def get_context(self, name, value, attrs):
context_value = value or [""]
context = super().get_context(name, context_value, attrs)
final_attrs = context["widget"]["attrs"]
id_ = context["widget"]["attrs"].get("id")
context["widget"]["is_none"] = value is None
subwidgets = []
for index, item in enumerate(context["widget"]["value"]):
widget_attrs = final_attrs.copy()
if id_:
widget_attrs["id"] = "{id_}_{index}".format(id_=id_, index=index)
widget = forms.TextInput()
widget.is_required = self.is_required
subwidgets.append(widget.get_context(name, item, widget_attrs)["widget"])
context["widget"]["subwidgets"] = subwidgets
return context
def value_from_datadict(self, data, files, name):
try:
getter = data.getlist
return [value for value in getter(name) if value]
except AttributeError:
return data.get(name)
def format_value(self, value):
return value or []
