diff --git a/.gitignore b/.gitignore
index d9437c3..7f583c5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,3 +2,8 @@
 *.pot
 *.pyc
 local_settings.py
+*.py~
+.idea
+build
+dist
+*.egg-info
\ No newline at end of file
diff --git a/MANIFEST.in b/MANIFEST.in
index 78c6216..b7e5eda 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -2,3 +2,4 @@ include README.rst
 include CHANGES.rst
 include COPYING.LGPLv3
 include *.py
+prune   example/
\ No newline at end of file
diff --git a/example/example/__init__.py b/example/example/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/example/example/app/__init__.py b/example/example/app/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/example/example/app/admin.py b/example/example/app/admin.py
new file mode 100644
index 0000000..a8f2595
--- /dev/null
+++ b/example/example/app/admin.py
@@ -0,0 +1,25 @@
+# -*- coding: utf-8 -*-
+# Copyright (c) 2013 by Pablo Martín <goinnn@gmail.com>
+#
+# This software is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Lesser General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This software is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with this software.  If not, see <http://www.gnu.org/licenses/>.
+
+from django.contrib import admin
+
+from example.app.models import Book
+
+
+class BookAdmin(admin.ModelAdmin):
+    pass
+
+admin.site.register(Book, BookAdmin)
diff --git a/example/example/app/fixtures/initial_data.json b/example/example/app/fixtures/initial_data.json
new file mode 100644
index 0000000..f742ee6
--- /dev/null
+++ b/example/example/app/fixtures/initial_data.json
@@ -0,0 +1,29 @@
+[
+{
+    "pk": 1, 
+    "model": "app.book", 
+    "fields": {
+        "title": "My book 1",
+        "tags": "sex,work,happy",
+        "categories": "1,3,5"
+    }
+},
+{
+    "pk": 1, 
+    "model": "auth.user", 
+    "fields": {
+        "username": "admin", 
+        "first_name": "Pablo", 
+        "last_name": "Martin", 
+        "is_active": true, 
+        "is_superuser": true, 
+        "is_staff": true, 
+        "last_login": "2013-10-17T08:04:29.582Z", 
+        "groups": [], 
+        "user_permissions": [],
+        "password": "sha1$1ad04$868abf5737e05d3b68f5cb972fda1e227cc4f7d7", 
+        "email": "", 
+        "date_joined": "2013-10-17T08:04:29.582Z"
+    }
+}
+]
diff --git a/example/example/app/models.py b/example/example/app/models.py
new file mode 100644
index 0000000..e80de9d
--- /dev/null
+++ b/example/example/app/models.py
@@ -0,0 +1,53 @@
+# -*- coding: utf-8 -*-
+# Copyright (c) 2013 by Pablo Martín <goinnn@gmail.com>
+#
+# This software is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Lesser General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This software is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with this software.  If not, see <http://www.gnu.org/licenses/>.
+
+from django.db import models
+
+from multiselectfield import MultiSelectField
+
+CATEGORY_CHOICES = (
+    (1, 'Handbooks and manuals by discipline‎'),
+    (2, 'Business books‎'),
+    (3, 'Books of literary criticism‎'),
+    (4, 'Books about literary theory'),
+    (5, 'Books about literature‎')
+)
+
+TAGS_CHOICES = (
+    ('sex', 'Sex'),
+    ('work', 'Work'),
+    ('happy', 'Happy'),
+    ('food', 'Food'),
+    ('field', 'Field'),
+    ('boring', 'Boring'),
+    ('interesting', 'Interesting'),
+    ('huge', 'huge'),
+    ('nice', 'Nice'),
+)
+
+#"categories": "4,5",
+
+
+class Book(models.Model):
+    title = models.CharField(max_length=200)
+    categories = MultiSelectField(choices=CATEGORY_CHOICES, max_length=10)
+    tags = MultiSelectField(choices=TAGS_CHOICES, max_length=10)
+
+    def __str__(self):
+        return self.title
+
+    def __unicode__(self):
+        return self.__str__()
diff --git a/example/example/app/urls.py b/example/example/app/urls.py
new file mode 100644
index 0000000..d2b8e28
--- /dev/null
+++ b/example/example/app/urls.py
@@ -0,0 +1,25 @@
+# -*- coding: utf-8 -*-
+# Copyright (c) 2013 by Pablo Martín <goinnn@gmail.com>
+#
+# This software is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Lesser General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This software is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with this software.  If not, see <http://www.gnu.org/licenses/>.
+
+try:
+    from django.conf.urls import include, patterns, url
+except ImportError:  # Django < 1.4
+    from django.conf.urls.defaults import include, patterns, url
+
+
+urlpatterns = patterns('example.app.views',
+    url(r'^$', 'app_index', name='app_index'),
+)
diff --git a/example/example/app/views.py b/example/example/app/views.py
new file mode 100644
index 0000000..d5b8a51
--- /dev/null
+++ b/example/example/app/views.py
@@ -0,0 +1,31 @@
+# -*- coding: utf-8 -*-
+# Copyright (c) 2013 by Pablo Martín <goinnn@gmail.com>
+#
+# This software is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Lesser General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This software is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with this software.  If not, see <http://www.gnu.org/licenses/>.
+
+
+from django.conf import settings
+from django.contrib.auth import login
+from django.contrib.auth.models import User
+
+from django.core.urlresolvers import reverse
+from django.http import HttpResponseRedirect
+
+
+def app_index(request):
+    user = User.objects.get(username='admin')
+    if not hasattr(user, 'backend'):
+        user.backend = settings.AUTHENTICATION_BACKENDS[0]
+    login(request, user)
+    return HttpResponseRedirect(reverse('admin:app_book_change', args=(1,)))
diff --git a/example/example/settings.py b/example/example/settings.py
new file mode 100644
index 0000000..512792a
--- /dev/null
+++ b/example/example/settings.py
@@ -0,0 +1,210 @@
+# -*- coding: utf-8 -*-
+# Copyright (c) 2013 by Pablo Martín <goinnn@gmail.com>
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Lesser General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with this programe.  If not, see <http://www.gnu.org/licenses/>.
+
+# Django settings for example project.
+import os
+from os import path
+
+DEBUG = True
+TEMPLATE_DEBUG = DEBUG
+
+BASEDIR = path.dirname(path.abspath(__file__))
+
+ADMINS = (
+    # ('Your Name', 'your_email@example.com'),
+)
+
+MANAGERS = ADMINS
+
+DATABASES = {
+    'default': {
+        'ENGINE': 'django.db.backends.sqlite3', # Add 'postgresql_psycopg2', 'mysql', 'sqlite3' or 'oracle'.
+        'NAME': 'example.db',                      # Or path to database file if using sqlite3.
+        # The following settings are not used with sqlite3:
+        'USER': '',
+        'PASSWORD': '',
+        'HOST': '',                      # Empty for localhost through domain sockets or '127.0.0.1' for localhost through TCP.
+        'PORT': '',                      # Set to empty string for default.
+    }
+}
+
+# Hosts/domain names that are valid for this site; required if DEBUG is False
+# See https://docs.djangoproject.com/en/1.5/ref/settings/#allowed-hosts
+ALLOWED_HOSTS = ['localhost']
+
+# Local time zone for this installation. Choices can be found here:
+# http://en.wikipedia.org/wiki/List_of_tz_zones_by_name
+# although not all choices may be available on all operating systems.
+# In a Windows environment this must be set to your system time zone.
+TIME_ZONE = 'America/Chicago'
+
+# Language code for this installation. All choices can be found here:
+# http://www.i18nguy.com/unicode/language-identifiers.html
+LANGUAGE_CODE = 'en-us'
+
+SITE_ID = 1
+
+# If you set this to False, Django will make some optimizations so as not
+# to load the internationalization machinery.
+USE_I18N = True
+
+# If you set this to False, Django will not format dates, numbers and
+# calendars according to the current locale.
+USE_L10N = True
+
+# If you set this to False, Django will not use timezone-aware datetimes.
+USE_TZ = True
+
+# Absolute filesystem path to the directory that will hold user-uploaded files.
+# Example: "/var/www/example.com/media/"
+MEDIA_ROOT = path.join(BASEDIR, 'media')
+
+# URL that handles the media served from MEDIA_ROOT. Make sure to use a
+# trailing slash.
+# Examples: "http://example.com/media/", "http://media.example.com/"
+MEDIA_URL = '/media/'
+
+# Absolute path to the directory static files should be collected to.
+# Don't put anything in this directory yourself; store your static files
+# in apps' "static/" subdirectories and in STATICFILES_DIRS.
+# Example: "/var/www/example.com/static/"
+STATIC_ROOT = path.join(BASEDIR, 'static')
+
+# URL prefix for static files.
+# Example: "http://example.com/static/", "http://static.example.com/"
+STATIC_URL = '/static/'
+
+# Additional locations of static files
+STATICFILES_DIRS = (
+    # Put strings here, like "/home/html/static" or "C:/www/django/static".
+    # Always use forward slashes, even on Windows.
+    # Don't forget to use absolute paths, not relative paths.
+)
+
+# List of finder classes that know how to find static files in
+# various locations.
+STATICFILES_FINDERS = (
+    'django.contrib.staticfiles.finders.FileSystemFinder',
+    'django.contrib.staticfiles.finders.AppDirectoriesFinder',
+#    'django.contrib.staticfiles.finders.DefaultStorageFinder',
+)
+
+# Make this unique, and don't share it with anybody.
+SECRET_KEY = 'lwfo1o9r^+x8xwec=6$a&m(dmg$1t%8)g6hr%&b4%)%_ualb8s'
+
+# List of callables that know how to import templates from various sources.
+TEMPLATE_LOADERS = (
+    'django.template.loaders.filesystem.Loader',
+    'django.template.loaders.app_directories.Loader',
+#     'django.template.loaders.eggs.Loader',
+)
+
+MIDDLEWARE_CLASSES = (
+    'django.middleware.common.CommonMiddleware',
+    'django.contrib.sessions.middleware.SessionMiddleware',
+    'django.middleware.csrf.CsrfViewMiddleware',
+    'django.contrib.auth.middleware.AuthenticationMiddleware',
+    'django.contrib.messages.middleware.MessageMiddleware',
+    # Uncomment the next line for simple clickjacking protection:
+    # 'django.middleware.clickjacking.XFrameOptionsMiddleware',
+)
+
+ROOT_URLCONF = 'example.urls'
+
+# Python dotted path to the WSGI application used by Django's runserver.
+WSGI_APPLICATION = 'example.wsgi.application'
+
+TEMPLATE_DIRS = (
+    # Put strings here, like "/home/html/django_templates" or "C:/www/django/templates".
+    # Always use forward slashes, even on Windows.
+    # Don't forget to use absolute paths, not relative paths.
+)
+
+TEMPLATE_CONTEXT_PROCESSORS = (
+    'django.contrib.auth.context_processors.auth',
+    'django.core.context_processors.debug',
+    'django.core.context_processors.i18n',
+    'django.core.context_processors.media',
+    'django.core.context_processors.request',
+    'django.core.context_processors.tz',
+    'django.core.context_processors.static',
+    'django.contrib.messages.context_processors.messages',
+)
+
+INSTALLED_APPS = (
+    'django.contrib.auth',
+    'django.contrib.contenttypes',
+    'django.contrib.sessions',
+    'django.contrib.sites',
+    'django.contrib.messages',
+    'django.contrib.staticfiles',
+    # Uncomment the next line to enable the admin:
+    'django.contrib.admin',
+    # Uncomment the next line to enable admin documentation:
+    # 'django.contrib.admindocs',
+
+    'multiselectfield',
+    'example.app'
+)
+
+
+# If formadmin is installed
+from django.conf import ENVIRONMENT_VARIABLE
+# I check it if formadmin is installed of this way because if I execute
+# python manage.py runserver --settings=settings_no_debug
+# I get an error
+if os.environ[ENVIRONMENT_VARIABLE] == 'example.settings':
+    try:
+        import formadmin
+        INSTALLED_APPS += ('formadmin',)
+    except ImportError:
+        pass
+
+SESSION_SERIALIZER = 'django.contrib.sessions.serializers.JSONSerializer'
+
+# A sample logging configuration. The only tangible logging
+# performed by this configuration is to send an email to
+# the site admins on every HTTP 500 error when DEBUG=False.
+# See http://docs.djangoproject.com/en/dev/topics/logging for
+# more details on how to customize your logging configuration.
+LOGGING = {
+    'version': 1,
+    'disable_existing_loggers': False,
+    'handlers': {
+        'mail_admins': {
+            'level': 'ERROR',
+            'class': 'django.utils.log.AdminEmailHandler'
+        }
+    },
+    'loggers': {
+        'django.request': {
+            'handlers': ['mail_admins'],
+            'level': 'ERROR',
+            'propagate': True,
+        },
+    }
+}
+
+import django
+
+if django.VERSION[0] >= 1 and django.VERSION[1] >= 4:
+    TEMPLATE_CONTEXT_PROCESSORS += ('django.core.context_processors.tz',)
+    LOGGING['filters'] = {
+        'require_debug_false': {
+            '()': 'django.utils.log.RequireDebugFalse',
+        },
+    }
+    LOGGING['handlers']['mail_admins']['filters'] = ['require_debug_false']
diff --git a/example/example/urls.py b/example/example/urls.py
new file mode 100644
index 0000000..59a52c4
--- /dev/null
+++ b/example/example/urls.py
@@ -0,0 +1,42 @@
+# -*- coding: utf-8 -*-
+# Copyright (c) 2013 by Pablo Martín <goinnn@gmail.com>
+#
+# This software is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Lesser General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This software is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with this software.  If not, see <http://www.gnu.org/licenses/>.
+
+
+from django.conf import settings
+try:
+    from django.conf.urls import include, patterns, url
+except ImportError:  # Django < 1.4
+    from django.conf.urls.defaults import include, patterns, url
+
+from django.contrib import admin
+
+admin.autodiscover()
+
+js_info_dict = {
+    'packages': ('django.conf',),
+}
+
+urlpatterns = patterns('',
+    url(r'^', include('example.app.urls')),
+    url(r'^admin/', include(admin.site.urls)),
+)
+
+urlpatterns += patterns('',
+    (r'^%s(?P<path>.*)$' % settings.MEDIA_URL[1:],
+     'django.views.static.serve',
+     {'document_root': settings.MEDIA_ROOT,
+      'show_indexes': True}),
+)
diff --git a/example/example/wsgi.py b/example/example/wsgi.py
new file mode 100644
index 0000000..43ff066
--- /dev/null
+++ b/example/example/wsgi.py
@@ -0,0 +1,32 @@
+"""
+WSGI config for test_project project.
+
+This module contains the WSGI application used by Django's development server
+and any production WSGI deployments. It should expose a module-level variable
+named ``application``. Django's ``runserver`` and ``runfcgi`` commands discover
+this application via the ``WSGI_APPLICATION`` setting.
+
+Usually you will have the standard Django WSGI application here, but it also
+might make sense to replace the whole Django WSGI application with a custom one
+that later delegates to the Django one. For example, you could introduce WSGI
+middleware here, or combine a Django application with an application of another
+framework.
+
+"""
+import os
+
+# We defer to a DJANGO_SETTINGS_MODULE already in the environment. This breaks
+# if running multiple sites in the same mod_wsgi process. To fix this, use
+# mod_wsgi daemon mode with each site in its own daemon process, or use
+# os.environ["DJANGO_SETTINGS_MODULE"] = "test_project.settings"
+os.environ.setdefault("DJANGO_SETTINGS_MODULE", "test_project.settings")
+
+# This application object is used by any WSGI server configured to use this
+# file. This includes Django's development server, if the WSGI_APPLICATION
+# setting points here.
+from django.core.wsgi import get_wsgi_application
+application = get_wsgi_application()
+
+# Apply WSGI middleware here.
+# from helloworld.wsgi import HelloWorldApplication
+# application = HelloWorldApplication(application)
diff --git a/example/manage.py b/example/manage.py
new file mode 100644
index 0000000..d7453d7
--- /dev/null
+++ b/example/manage.py
@@ -0,0 +1,10 @@
+#!/usr/bin/env python
+import os
+import sys
+
+from django.conf import ENVIRONMENT_VARIABLE
+
+if __name__ == "__main__":
+    os.environ.setdefault(ENVIRONMENT_VARIABLE, "example.settings")
+    from django.core.management import execute_from_command_line
+    execute_from_command_line(sys.argv)