Add implementation

Author: Mart Sõmermaa

MANIFEST.in

@@ -0,0 +1,3 @@
+include LICENSE
+include README.md
+recursive-include django_admin_listfilter_dropdown/templates *

README.md

@@ -30,11 +30,16 @@ INSTALLED_APPS = (
 Use in `admin.py`:
 
 ```py
-from django_admin_listfilter_dropdown.filters import DropdownFilter
+from django_admin_listfilter_dropdown.filters import DropdownFilter, RelatedDropdownFilter
 
 class EntityAdmin(admin.ModelAdmin):
     ...
-    list_filter = (('fieldname', DropdownFilter),)
+    list_filter = (
+        # for ordinary fields
+        ('a_charfield', DropdownFilter),
+        # for related fields
+        ('a_foreignkey_field', RelatedDropdownFilter),
+    )
 ```
 
 # Credits

django_admin_listfilter_dropdown/__init__.py

@@ -0,0 +1,7 @@
+from django.contrib.admin.filters import AllValuesFieldListFilter, RelatedFieldListFilter
+
+class DropdownFilter(AllValuesFieldListFilter):
+    template = 'django_admin_listfilter_dropdown/dropdown_filter.html'
+
+class RelatedDropdownFilter(RelatedFieldListFilter):
+    template = 'django_admin_listfilter_dropdown/dropdown_filter.html'

django_admin_listfilter_dropdown/filters.py

@@ -0,0 +1,23 @@
+{% load i18n %}
+<script type="text/javascript">var go_from_select = function(opt) { window.location = window.location.pathname + opt };</script>
+<h3>{% blocktrans with title as filter_title %} By {{ filter_title }} {% endblocktrans %}</h3>
+<ul class="admin-filter-{{ title|cut:' ' }}">
+{% if choices|slice:"4:" %}
+    <li>
+    <select style="width: 95%;"
+        onchange="go_from_select(this.options[this.selectedIndex].value)">
+    {% for choice in choices %}
+        <option{% if choice.selected %} selected="selected"{% endif %}
+         value="{{ choice.query_string|iriencode }}">{{ choice.display }}</option>
+    {% endfor %}
+    </select>
+    </li>
+{% else %}
+
+    {% for choice in choices %}
+            <li{% if choice.selected %} class="selected"{% endif %}>
+            <a href="{{ choice.query_string|iriencode }}">{{ choice.display }}</a></li>
+    {% endfor %}
+
+{% endif %}
+</ul>

django_admin_listfilter_dropdown/templates/django_admin_listfilter_dropdown/dropdown_filter.html

@@ -0,0 +1,29 @@
+# encoding: utf-8
+
+import os
+from setuptools import find_packages, setup
+
+# allow setup.py to be run from any path
+os.chdir(os.path.normpath(os.path.join(os.path.abspath(__file__), os.pardir)))
+
+setup(
+    name='django-admin-list-filter-dropdown',
+    version='1.0.0',
+    packages=find_packages(),
+    include_package_data=True,
+    license='MIT License',
+    description='Use dropdowns in Django admin list filter',
+    url='https://github.com/mrts/django-admin-list-filter-dropdown',
+    author='Mart Sõmermaa',
+    author_email="mrts.pydev at gmail dot com",
+    classifiers=[
+        'Environment :: Web Environment',
+        'Framework :: Django',
+        'Intended Audience :: Developers',
+        'License :: OSI Approved :: MIT License',
+        'Operating System :: OS Independent',
+        'Programming Language :: Python',
+        'Topic :: Internet :: WWW/HTTP',
+        'Topic :: Internet :: WWW/HTTP :: Dynamic Content',
+    ],
+)