def get_bound_field(self, form, field_name):
bound_field = BoundField(form, self, field_name)
# Set initial value based on prescribed child fields (if not already set)
if not self.initial and self.initial_params:
filter_kwargs = {}
for kwarg, child_field in self.initial_params.items():
value = form.initial.get(child_field.lstrip('$'))
if value:
filter_kwargs[kwarg] = value
if filter_kwargs:
self.initial = self.queryset.filter(**filter_kwargs).first()
# Modify the QuerySet of the field before we return it. Limit choices to any data already bound: Options
# will be populated on-demand via the APISelect widget.
data = bound_field.value()
if data:
field_name = getattr(self, 'to_field_name') or 'pk'
filter = self.filter(field_name=field_name)
try:
self.queryset = filter.filter(self.queryset, data)
except (TypeError, ValueError):
# Catch any error caused by invalid initial data passed from the user
self.queryset = self.queryset.none()
else:
self.queryset = self.queryset.none()
# Set the data URL on the APISelect widget (if not already set)
widget = bound_field.field.widget
if not widget.attrs.get('data-url'):
app_label = self.queryset.model._meta.app_label
model_name = self.queryset.model._meta.model_name
data_url = reverse('{}-api:{}-list'.format(app_label, model_name))
widget.attrs['data-url'] = data_url
return bound_field
def get_bound_field(self, form, field_name):
bound_field = BoundField(form, self, field_name)
# Override initial() to allow passing multiple values
bound_field.initial = self._get_initial_value(form.initial, field_name)
# Modify the QuerySet of the field before we return it. Limit choices to any data already bound: Options
# will be populated on-demand via the APISelect widget.
data = bound_field.value()
if data:
filter = self.filter(field_name=self.to_field_name or 'pk', queryset=self.queryset)
self.queryset = filter.filter(self.queryset, data)
else:
self.queryset = self.queryset.none()
# Set the data URL on the APISelect widget (if not already set)
widget = bound_field.field.widget
if not widget.attrs.get('data-url'):
app_label = self.queryset.model._meta.app_label
model_name = self.queryset.model._meta.model_name
data_url = reverse('{}-api:{}-list'.format(app_label, model_name))
widget.attrs['data-url'] = data_url
return bound_field
def jet_select2_lookups(field: BoundField):
form_field: Field = getattr(field, 'field', None)
if not (form_field and
(isinstance(form_field, ModelChoiceField)
or isinstance(form_field, ModelMultipleChoiceField))):
return field
qs = form_field.queryset
model = qs.model
if not (getattr(model, 'autocomplete_search_fields', None)
and getattr(form_field, 'autocomplete', True)):
return field
choices = []
app_label = model._meta.app_label
model_name = model._meta.object_name
url = getattr(form_field, 'url', reverse('jet:model_lookup'))
data = getattr(form_field.widget, 'data', {})
data['blank'] = not form_field.required
attrs = {
'class': 'ajax',
'data-app-label': app_label,
'data-model': model_name,
'data-ajax--url': url,
**format_widget_data(data),
}
initial_value = field.value()
if isinstance(form_field, ModelMultipleChoiceField):
if initial_value:
initial_objects = model.objects.filter(pk__in=initial_value)
choices.extend([(initial_object.pk,
get_model_instance_label(initial_object))
for initial_object in initial_objects])
if isinstance(form_field.widget, RelatedFieldWidgetWrapper):
form_field.widget.widget = SelectMultiple(attrs)
else:
form_field.widget = SelectMultiple(attrs)
form_field.choices = choices
elif isinstance(form_field, ModelChoiceField):
if initial_value:
try:
initial_object = model.objects.get(pk=initial_value)
attrs['data-object-id'] = initial_value
choices.append((initial_object.pk,
get_model_instance_label(initial_object)))
except model.DoesNotExist:
pass
if isinstance(form_field.widget, RelatedFieldWidgetWrapper):
form_field.widget.widget = Select(attrs)
else:
form_field.widget = Select(attrs)
form_field.choices = choices
return field
