Source code for fobi.contrib.plugins.form_elements.fields.select_multiple_model_objects.base
from __future__ import absolute_import
import json
from django.apps import apps
from django.core.serializers.json import DjangoJSONEncoder
from django.forms.models import ModelMultipleChoiceField
from django.forms.widgets import SelectMultiple
from django.utils.translation import gettext_lazy as _
from fobi.base import FormFieldPlugin, get_theme
from fobi.constants import SUBMIT_VALUE_AS_REPR, SUBMIT_VALUE_AS_VAL
from fobi.helpers import (
get_app_label_and_model_name,
get_model_name_for_object,
safe_text,
)
from . import UID
from .forms import SelectMultipleModelObjectsInputForm
from .settings import SUBMIT_VALUE_AS
__title__ = (
"fobi.contrib.plugins.form_elements.fields."
"select_multiple_model_objects.fobi_form_elements"
)
__author__ = "Artur Barseghyan <artur.barseghyan@gmail.com>"
__copyright__ = "2014-2019 Artur Barseghyan"
__license__ = "GPL 2.0/LGPL 2.1"
__all__ = ("SelectMultipleModelObjectsInputPlugin",)
theme = get_theme(request=None, as_instance=True)
[docs]class SelectMultipleModelObjectsInputPlugin(FormFieldPlugin):
"""Select multiple model objects field plugin."""
uid = UID
name = _("Select multiple model objects")
group = _("Fields")
form = SelectMultipleModelObjectsInputForm
[docs] def get_queryset(self):
"""Get queryset.
Might be used in integration packages.
"""
app_label, model_name = get_app_label_and_model_name(self.data.model)
model = apps.get_model(app_label, model_name)
queryset = model._default_manager.all()
return queryset
[docs] def get_form_field_instances(
self, request=None, form_entry=None, form_element_entries=None, **kwargs
):
"""Get form field instances."""
queryset = self.get_queryset()
field_kwargs = {
"label": self.data.label,
"help_text": self.data.help_text,
"initial": self.data.initial,
"required": self.data.required,
"queryset": queryset,
"widget": SelectMultiple(
attrs={"class": theme.form_element_html_class}
),
}
return [(self.data.name, ModelMultipleChoiceField, field_kwargs)]
[docs] def submit_plugin_form_data(
self, form_entry, request, form, form_element_entries=None, **kwargs
):
"""
Submit plugin form data/process.
:param fobi.models.FormEntry form_entry: Instance of
``fobi.models.FormEntry``.
:param django.http.HttpRequest request:
:param django.forms.Form form:
"""
# In case if we should submit value as is, we don't return anything.
# In other cases, we proceed further.
# Get the object
objs = form.cleaned_data.get(self.data.name, [])
values = []
for obj in objs:
if obj:
value = None
# Should be returned as repr
if SUBMIT_VALUE_AS == SUBMIT_VALUE_AS_REPR:
value = safe_text(obj)
elif SUBMIT_VALUE_AS == SUBMIT_VALUE_AS_VAL:
value = "{0}.{1}.{2}".format(
obj._meta.app_label,
get_model_name_for_object(obj),
obj.pk,
)
else:
# Handle the submitted form value
value = "{0}.{1}.{2}.{3}".format(
obj._meta.app_label,
get_model_name_for_object(obj),
obj.pk,
safe_text(obj),
)
values.append(value)
# Overwrite ``cleaned_data`` of the ``form`` with object qualifier.
if values:
form.cleaned_data[self.data.name] = json.dumps(
values, cls=DjangoJSONEncoder
)
else:
del form.cleaned_data[self.data.name]
# It's critically important to return the ``form`` with updated
# ``cleaned_data``
return form