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django-admin-autocomplete-list-filter
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Add ManyToMany and ForeignKey support

master
Uğur Özyılmazel 2019-10-11 10:33:41 +03:00
parent be63ad16d3
commit 90c11a8d32
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2 changed files with 29 additions and 8 deletions
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27
djaa_list_filter/admin.py
View File

@ -1,8 +1,12 @@
# pylint: disable=R0903,R0913
# pylint: disable=R0903,R0913,R0201
from django import forms
from django.contrib import admin
from django.contrib.admin.widgets import AutocompleteSelect
from django.db.models.fields.related_descriptors import (
ManyToManyDescriptor,
ReverseManyToOneDescriptor,
)
from django.utils.translation import ugettext_lazy as _
# from django.core.exceptions import ImproperlyConfigured
@ -14,8 +18,8 @@ class AjaxAutocompleteSelectWidget(AutocompleteSelect):
self.model_admin = kwargs.pop('model_admin')
self.model = kwargs.pop('model')
self.field_name = kwargs.pop('field_name')
kwargs['admin_site'] = self.model_admin.admin_site
kwargs['rel'] = getattr(self.model, self.field_name).field.remote_field
kwargs.update(admin_site=self.model_admin.admin_site)
kwargs.update(rel=getattr(self.model, self.field_name).field.remote_field)
super().__init__(*args, **kwargs)
def render(self, name, value, attrs=None, renderer=None):
@ -36,7 +40,7 @@ class AjaxAutocompleteListFilter(admin.RelatedFieldListFilter):
super().__init__(field, request, params, model, model_admin, field_path)
qs_target_value = self.parameter_name % (field.name, model._meta.pk.name)
queryset = getattr(model, field.name).get_queryset()
queryset = self.get_queryset_for_field(model, field.name)
widget = AjaxAutocompleteSelectWidget(
model_admin=model_admin, model=model, field_name=field.name, qs_target_value=qs_target_value
)
@ -51,6 +55,21 @@ class AjaxAutocompleteListFilter(admin.RelatedFieldListFilter):
initial_values.update(autocomplete_field=autocomplete_field_initial_value)
self.autocomplete_form = AutocompleteForm(initial=initial_values)
def get_queryset_for_field(self, model, name):
"""
Thanks to farhan0581
https://github.com/farhan0581/django-admin-autocomplete-filter/blob/master/admin_auto_filters/filters.py
"""
field_desc = getattr(model, name)
if isinstance(field_desc, ManyToManyDescriptor):
related_model = field_desc.rel.related_model if field_desc.reverse else field_desc.rel.model
elif isinstance(field_desc, ReverseManyToOneDescriptor):
related_model = field_desc.rel.related_model
else:
return field_desc.get_queryset()
return related_model.objects.get_queryset()
class AjaxAutocompleteListFilterModelAdmin(admin.ModelAdmin):
def get_list_filter(self, request):

10
djaa_list_filter/static/djaa_list_filter/admin/js/autocomplete_list_filter.js
View File

@ -1,9 +1,11 @@
function handle_querystring_and_redirect(querystring_value, qs_target_value, selection) {
var required_queryset = [];
for(const field_eq_value of querystring_value.split("&")){
var [field, value] = field_eq_value.split("=");
if (field != qs_target_value){
required_queryset.push(field_eq_value)
if (querystring_value.length > 0) {
for(const field_eq_value of querystring_value.split("&")){
var [field, value] = field_eq_value.split("=");
if (field != qs_target_value){
required_queryset.push(field_eq_value)
}
}
}
if (selection.length > 0) {