root/trunk/config.py

# Copyright 2006 by the LeMill Team (see AUTHORS)
#
# This file is part of LeMill.
#
# LeMill is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# LeMill 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 General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with LeMill; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

try:
    from Products.CMFPlone.migrations import v2_5
except ImportError:
    PLONE25 = 0
    PLONE21 = 1 # This is ok since we've never supported anything below Plone 2.1
else:
    PLONE25 = 1
    PLONE21 = 0

from Products.CMFCore import permissions
from types import UnicodeType
from Products.ATContentTypes import permission as atpermissions
import os
from os import path, environ
from Globals import package_home
from Acquisition import ImplicitAcquisitionWrapper, aq_base

try:
    from Products.FileSystemStorage.FileSystemStorage import FileSystemStorage
    FS_STORAGE=True    
except ImportError:
    FS_STORAGE=False    


import sys

# Load zope instance specific LeMill configuration from zope.conf:
from App import config as zconfig
product_config=getattr(zconfig.getConfiguration(),'product_config', {})
lemill_config = product_config.get('lemill', {})

# Load recaptcha keys from zope.conf:
RECAPTCHA_PUBLIC_KEY=lemill_config.get('recaptcha_public_key','')
RECAPTCHA_PRIVATE_KEY=lemill_config.get('recaptcha_private_key','')


AVAILABLE_TRANSLATIONS = ['cs','de','en','es','et','fi','fr','hu','ka','lt','pl','pt-br','ru','se']


SLIDESHARE_API_KEY=lemill_config.get('slideshare_api_key','')
SLIDESHARE_SECRET_KEY=lemill_config.get('slideshare_secret_key','')


# Load google maps api key:
GOOGLE_MAPS_API_KEY=lemill_config.get('google_maps_api_key','')

#TODO: Other configuration directives should also go to zope.conf and loaded as above.

ADD_TOPICS = atpermissions.AddTopics
ADD_CONTENT_PERMISSION = permissions.AddPortalContent
LIST_FOLDER_CONTENTS = permissions.ListFolderContents
MODIFY_CONTENT = permissions.ModifyPortalContent
DELETE_CONTENT = permissions.DeleteObjects
MANAGE_PORTAL = permissions.ManagePortal
VIEW = permissions.View

# Must match the folder in Products/ where this product is installed
PROJECTNAME = "LeMill"
    

# With LaTeX you can write complex math notation to pages,
# Local LaTeX support requires that 
# 1. LaTeX-typesetting is installed to your computer
# 2. Zope Product 'LocalFS' v1.7-> is installed to your Products-folder. 

# External latex support doesn't require anything on your server, 
# but it depends on external service to compile images from latex code,
# which can result in missing or slowly loading images, depending on your network. 
# If both are enabled, first the local solution is tried, then external

# Default for local latex is 
# /zope-instance/var/latex_images
LATEX_IMAGES_STORAGE_PATH='latex_images' # this will be a directory under your zope instances var/ 

# Forkosh service seems to be closed for us now.
#EXTERNAL_LATEX_SERVICE='http://www.forkosh.dreamhost.com/mimetex.cgi?'
EXTERNAL_LATEX_SERVICE='http://chart.apis.google.com/chart?cht=tx&chl='

# To disable local latex, uncomment line below:
#LATEX_IMAGES_STORAGE_PATH=''

# To disable external latex service, uncomment line below:
#EXTERNAL_LATEX_SERVICE=''

# If you want to enable Flickr-search for pieces, you must have a flickr api key.
# You can get one from http://www.flickr.com/services/ 
#FLICKR_API_KEY = "774a1f64011ec6166e85def00ec641f6"
#FLICKR_API_KEY = ""

SCORE_THRESHOLD=5 # Resource needs to have score>N to get to front page

#
REMOTE_SERVERS = ["http://lemill.net"] 

MATERIAL_TYPES = ('PresentationMaterial', 'MultimediaMaterial', 'PILOTMaterial', 'ExerciseMaterial','LessonPlan', 'SchoolProjectMaterial', 'LeMillReference')
CONTENT_TYPES = ('Piece','LeMillPrintResource') + MATERIAL_TYPES
ACTIVITY_TYPES = ('Activity',)
TOOLS_TYPES = ('Tool',)
COMMUNITY_MAIN_TYPES = ('GroupBlog','MemberFolder',)
COMMUNITY_FEATURED_TYPES = ('MemberFolder',)
COMMUNITY_TYPES = ('BlogPost',) + COMMUNITY_MAIN_TYPES
FEATURED_TYPES = MATERIAL_TYPES + ACTIVITY_TYPES + TOOLS_TYPES + COMMUNITY_FEATURED_TYPES
ALL_CONTENT_TYPES = CONTENT_TYPES + ACTIVITY_TYPES + TOOLS_TYPES + COMMUNITY_TYPES
SEARCHABLE_TYPES = ALL_CONTENT_TYPES + ('Collection',)
STATISTICS_TYPES = COMMUNITY_MAIN_TYPES + CONTENT_TYPES + ACTIVITY_TYPES + TOOLS_TYPES
l = list(ALL_CONTENT_TYPES)
l.remove('MemberFolder')
CREATED_RESOURCES = tuple(l)

TYPE_NAMES = {'Piece':('Media piece','Media pieces'),
 'Material':('Content', 'Content'),
 'Learning resource':('Learning resource', 'Learning resources'),
 'Content': ('Content', 'Content'),
 'Activity': ('Method', 'Methods'),
 'Tool': ('Tool', 'Tools'), 
 'MemberFolder': ('Member', 'People'),
 'GroupBlog': ('Group', 'Groups'),
 'BlogPost': ('Forum post', 'Forum posts'),
 'LeMillReference': ('Reference', 'References'),
 'MultimediaMaterial': ('Web page', 'Web pages'),
 'PILOTMaterial': ('PILOT', 'PILOTs'),
 'PresentationMaterial': ('Presentation', 'Presentations'),  
 'ExerciseMaterial': ('Exercise', 'Exercises'),   
 'Collection': ('Collection', 'Collections'),
 'LessonPlan': ('Lesson plan', 'Lesson plans'),
 'SchoolProjectMaterial': ('School project', 'School projects'),
 'LeMillPrintResource': ('Print resource', 'Print resources'),
}


SUBJECT_AREAS = ["Natural sciences",
        "Geography", 
        "Chemistry",
        "Physics",
        "Biology",
        "Environmental education",
        "Language and literature",
        "Foreign languages",
        "Mathematics",
        "Informatics or ICT",
        "Art",
        "Music",
        "History",
        "Religion",
        "Philosophy",
        "Ethics",
        "Psychology",
        "Social sciences",
        "Culture",
        "Citizenship",
        "Politics",
        "Economics",
        "Media education",
        "Physical education",
        "School-community relationship",
        "Educational administration",
        "Cross-curricular education"]
SUBJECT_AREAS_DICT= dict([(sa.split()[0].lower(),sa) for sa in SUBJECT_AREAS])
SUBJECT_AREAS_INVERSE_DICT= dict([(sa, sa.split()[0].lower()) for sa in SUBJECT_AREAS])

TARGET_GROUPS= ["pre-school education", 
            "1st grade", 
            "2nd grade", 
            "3rd grade", 
            "4th grade", 
            "5th grade", 
            "6th grade", 
            "7th grade", 
            "8th grade", 
            "9th grade", 
            "10th grade", 
            "11th grade", 
            "12th grade", 
            "vocational education",
            "higher education",
            "adult education",
            "teachers", 
            "special education"]

TARGET_GROUPS_DICT= dict([(tg.split()[0].lower(),tg) for tg in TARGET_GROUPS])
TARGET_GROUPS_INVERSE_DICT = dict([(tg, tg.split()[0].lower()) for tg in TARGET_GROUPS])



TYPE_ABBREVIATIONS={'Piece':'MP',
            'MultimediaMaterial':'LR',
            'PresentationMaterial':'LR',
            'PILOTMaterial':'LR',
            'ExerciseMaterial':'LR',
            'SchoolProjectMaterial':'LR',
            'LeMillReference':'R',
            'Activity':'LM',
            'Tool':'T',
            'MemberFolder':'M',
            'GroupBlog':'G',
            'BlogPost':'FP',
            'Collection':'C',
            'LessonPlan':'LR',
            'LeMillPrintResource':'PR'}
            

# Subdirectory of this product folder which contains our skin folders
SKINS_DIR = 'skins'
SKIN_NAME='lemill'
# The skin from which to build our own skin
BASE_SKIN = 'Plone Default'

# application/octet-stream have to be in white list, because the browser recognize FLV as octet stream 
MIMETYPE_WHITELIST = ['image/jpeg', 'image/pjpeg', 'image/gif', 'image/png', 'image/x-png',
                      'application/x-shockwave-flash', 'audio/mpeg', 'application/octet-stream', 
                      'text/plain', 'application/earthviewer', 'text/xml', 'application/xml', 'application/x-xml']

#list of shown metadata fields, if 'all' is in array then all fields are shown
SHOW_METADATA_FIELDS = {'Piece':['description', 'tags'],
                        'PresentationMaterial':['all',],
                        'MultimediaMaterial':['all',],
                        'ExerciseMaterial':['all',],
                        'Tool':['all',],
                        'Activity':['all',],
                        'GroupBlog':['all',],
                        'LeMillReference' : ['all',],
                        'PILOTMaterial' : ['all',],
                        'LessonPlan' : ['all',],
                        'SchoolProjectMaterial' : ['all',],
                        'LeMillPrintResource' : ['all',]
                       }

# Main sections of the site
SECTIONS = {'Content':['Pieces','References','Presentations','PILOTs','WebPages','Exercises','LessonPlans','SchoolProjects','PrintResources'],'Methods':[],'Tools':[],'Community':['People','Groups']}


SECTION_FOLDER_TYPES = {
    'Methods':'LargeActivityFolder',    
    'Tools':'LargeToolFolder',
    'Content':'LargeContentFolder',
    'Pieces':'LargeContentFolder',
    'References':'LargeContentFolder',
    'Presentations':'LargeContentFolder',
    'PILOTs':'LargeContentFolder',
    'WebPages':'LargeContentFolder',
    'Exercises':'LargeContentFolder',
    'Community':'LargeCommunityFolder',
    'People':'LargeCommunityFolder',
    'Groups':'LargeCommunityFolder',
    'LessonPlans':'LargeContentFolder',
    'SchoolProjects':'LargeContentFolder',
    'PrintResources':'LargeContentFolder'
}

SECTION_TOPLISTS={
    'content':['top3languages','top3subject_areas','top3target_groups','top3tags'],
    'methods':['top3languages','top3tags'],
    'tools':['top3languages','top3tags'],
    'community':['top3language_skills','top3locations','top3skills','top3interests','top3subject_areas',
        'top3group_languages','top3group_tags','top3group_subject_areas']
}

    
DEFAULT_PORTRAIT = 'default_member.png'

INSTANT_MESSENGERS = ('AIM','Gadu-Gadu','Google Talk','ICQ','MSN','Skype','Yahoo')

# search terms travel all over the place in urls, often without any 
# (easy) access to types that have these fields. Still they need to be displayed in some nice way.
FIELD_METHODS_DISPLAY_STRINGS={
    'getSubject_area':('subject area','subject areas'),
    'getTarget_group':('target group','target groups'),
    'sortable_title':('title', 'titles'),
    'Language':('language', 'languages'),
    'getTags' : ('tag', 'tags'),
    'getState':('status', 'status'),
    'getLanguage_skills':('language skill', 'language skills'),
    'sortable_title':('title', 'titles'),
    'getLocation_country':('country', 'countries'),
    'getLocation_area':('area', 'areas'),
    'getSkills':('skill', 'skills'),
    'getInterests':('interest', 'interests'),
    'Creator':('creator', 'creators'),
    }



TEMPLATES = {
    'multimediapage' : {
        'title'  : 'Web page',
        'fields' : ['title', 'bodyText'],
        'meta_type' : 'MultimediaMaterial',
        'icon' : 'images/default_multimedia_page.png',
        'order' : 'A',
        },
    'exercisepage' : {
        'title'  : 'Exercise',
        'fields' : ['title', 'bodyText'],
        'meta_type' : 'ExerciseMaterial',
        'icon' : 'images/default_exercise.png',
        'order' : 'C',
        },
    'presentation' : {
        'title'  : 'Presentation',
        'fields' : ['title', 'bodyText', 'audio'],
        'meta_type' : 'PresentationMaterial',
        'icon' : 'images/default_presentation.png',
        'order' : 'B',
        },
    'PILOTMaterial' : {
        'title' : 'PILOT',
        'fields' : ['title', 'shortDescription', 'description', 'bodyText'],
        'meta_type' : 'PILOTMaterial',
        'icon' : 'images/default_pilot.png',
        'order' : 'F',
        },
    'lessonplan' : {
        'title' : 'Lesson plan',
        'fields' : ['title', 'lessonTopic', 'subject_area', 'target_group', 'goalsAndObjectives', 'lessonDescription', 'contentLinks', 'methodsLinks', 'toolsLinks', 'evaluationAssessment', 'teacherReflections'],
        'meta_type' : 'LessonPlan',
        'icon' : 'images/default_lesson_plan.png',
        'order' : 'D',
        },
    'schoolproject' : {
        'title' : 'School project',
        'fields' : ['title', 'aims', 'outcomes', 'subject_area', 'target_group', 'prerequisite', 'duration', 'activities', 'contentLinks', 'methodsLinks', 'toolsLinks', 'evaluation'],
        'meta_type' : 'SchoolProjectMaterial',
        'icon' : 'images/default_school_project.png',
        'order' : 'E',
        }
    }

ALL_LICENSES = (('CreativeCommons', '''Creative Commons Attribution-ShareAlike License'''), ('CreativeCommonsAttribution', 'Creative Commons Attribution License'), ('FreeDocumentationLicense', 'Free Documentation License'), ('PublicDomain', 'Public Domain'))
LICENSES = ALL_LICENSES[0:1]

        
GLOBALS = globals()

def to_unicode(s,encoding='utf-8'):
    """Convenience method for converting strings to unicode."""
    if not s:
        return u''
    while type(s)==ImplicitAcquisitionWrapper:
        s=s()
    if type(s)==UnicodeType:
        return s        
    return unicode(s,encoding)

def _genUID():
    import time, random
    import sys
    t = str(int(time.time()))
    d = "%010d" % random.randint(0, sys.maxint-1)
    return "%s_%s" % (t, d)

        
DEFAULT_ICONS = {
        'Piece':'images/default_media_piece.png', # shouldn't be called this way
        'PresentationMaterial':'images/default_presentation.png',
        'PILOTMaterial':'images/default_pilot.png',
        'MultimediaMaterial':'images/default_multimedia_page.png',
        'ExerciseMaterial':'images/default_exercise.png',
        'LeMillReference':'images/default_reference.png',
        'LeMillPrintResource':'images/default_printresource.png',
        'LessonPlan':'images/default_lesson_plan.png',
        'SchoolProjectMaterial':'images/default_school_project.png',
        'Tool':'images/default_tool.png',
        'Activity':'images/default_activity.png',
        'GroupBlog':'images/default_group.png',
        'MemberFolder':'images/default_member.png',
        'Collection':'images/default_collection.png', # doesn't exist
        'BlogPost':'images/default_member.png', # shouldn't be called this way
        'Discussion Item': 'images/default_group.png'
        }
        

# Front-page shows only resources that already have stories, no random combinations.
GOOD_STORIES_ONLY = True

TARGET_GROUP = ["pre-school education", "1st grade", "2nd grade", "3rd grade", "4th grade", "5th grade", "6th grade", "7th grade", "8th grade", "9th grade", "10th grade", "11th grade", "12th grade","vocational education", "higher education", "adult education","teachers", "special education", "", None]
REPOSITORY = path.join(package_home(globals()), 'Repository/')
# path to fonts
TTF_FONTS = path.join(package_home(globals()), 'skins/lemill/fonts/')


TARGET_GROUP_TO_LRE_MAPPING = { 'pre-school education': ('U-6', 'LOMv1.0', 'learner', 'LREv3.0', 'pre-school'),
    '1st grade' : ('6-8', 'LOMv1.0', 'learner', 'LREv3.0', 'compulsory education'),
    '2nd grade' : ('7-9', 'LOMv1.0', 'learner', 'LREv3.0', 'compulsory education'),
    '3rd grade' : ('8-10', 'LOMv1.0', 'learner', 'LREv3.0', 'compulsory education'),
    '4th grade' : ('9-11', 'LOMv1.0', 'learner', 'LREv3.0', 'compulsory education'),
    '5th grade' : ('10-12', 'LOMv1.0', 'learner', 'LREv3.0', 'compulsory education'),
    '6th grade' : ('11-13', 'LOMv1.0', 'learner', 'LREv3.0', 'compulsory education'),
    '7th grade' : ('12-14', 'LOMv1.0', 'learner', 'LREv3.0', 'compulsory education'),
    '8th grade' : ('13-15', 'LOMv1.0', 'learner', 'LREv3.0', 'compulsory education'),
    '9th grade' : ('14-16', 'LOMv1.0', 'learner', 'LREv3.0', 'compulsory education'),
    '10th grade' : ('15-17', 'LOMv1.0', 'learner', 'LREv3.0', 'compulsory education'),
    '11th grade' : ('16-18', 'LOMv1.0', 'learner', None, None),
    '12th grade' : ('17-19', 'LOMv1.0', 'learner', None, None),
    'vocational education' : ('18-U', 'LOMv1.0', 'learner', 'LREv3.0', 'vocational education'),
    'higher education' : ('18-U', 'LOMv1.0', 'learner', 'LOMv1.0', 'higher education'),
    'adult education' : ('18-U', 'LOMv1.0', 'learner', 'LREv3.0', 'continuing education'),
    'teachers' : ('21-U', 'LOMv1.0', 'teacher', None, None),
    'special education' : ('6-19', 'LOMv1.0', 'learner', 'LREv3.0', 'special education')
    }

SUBJECT_AREA_TO_LRE_MAPPING = {'Natural sciences': (875, 'natural sciences'),
    'Geography': (540, 'geography'),
    'Chemistry': (195, 'chemistry'),
    'Physics': (978, 'physics'),
    'Biology': (144, 'biology'),
    'Environmental education': (431, 'environmental education'),
    'Language and literature': (707, 'language and literature'),
    'Foreign languages': (508, 'foreign language'),
    'Mathematics': (790, 'mathematics'),
    'Informatics or ICT': (650, 'informatics'),
    'Art': (91, 'art'),
    'Music': (856, 'music'),
    'History': (590, 'history'),
    'Religion': (1085, 'religion'),
    'Philosophy': (968, 'philosophy'),
    'Ethics': (441, 'ethics'),
    'Psychology': (1040, 'psychology'),
    'Social sciences': (1204, 'social sciences'),
    'Culture': (303, 'culture'),
    'Citizenship': (209, 'citizenship'),
    'Politics': (1001, 'politics'),
    'Economics': (383, 'economics'),
    'Media education': (798, 'media education'),
    'Physical education': (974, 'physical education'),
    'School-community relationship': (1139, 'school-community relationship'),
    'Educational administration': (186, 'central administration'),
    'Cross-curricular education': (292, 'cross-curricular education'),
    }

PORTAL_TYPE_TO_LRE_MAPPING = {'PresentationMaterial':'presentation',
    'MultimediaMaterial':'text',
    'PILOTMaterial':'video',
    'ExerciseMaterial':'educational game',
    'LessonPlan':'lesson plan',
    'SchoolProjectMaterial':'project'
    }


LANGUAGES=[('aa', 'Afar'),
    ('ab', 'Abkhazian'),
    ('af', 'Afrikaans'),
    ('am', 'Amharic'),
    ('ar', 'Arabic'),
    ('as', 'Assamese'),
    ('ay', 'Aymara'),
    ('az', 'Azerbaijani'),
    ('ba', 'Bashkir'),
    ('be', 'Byelorussian (Belarussian)'),
    ('bg', 'Bulgarian'),
    ('bh', 'Bihari'),
    ('bi', 'Bislama'),
    ('bn', 'Bengali'),
    ('bo', 'Tibetan'),
    ('br', 'Breton'),
    ('ca', 'Catalan'),
    ('co', 'Corsican'),
    ('cs', 'Czech'),
    ('cy', 'Welsh'),
    ('da', 'Danish'),
    ('de', 'German'),
    ('dz', 'Bhutani'),
    ('el', 'Greek'),
    ('en', 'English'),
    ('eo', 'Esperanto'),
    ('es', 'Spanish'),
    ('et', 'Estonian'),
    ('eu', 'Basque'),
    ('fa', 'Persian'),
    ('fi', 'Finnish'),
    ('fj', 'Fiji'),
    ('fo', 'Faroese'),
    ('fr', 'French'),
    ('fy', 'Frisian'),
    ('ga', 'Irish (Irish Gaelic)'),
    ('gd', 'Scots Gaelic (Scottish Gaelic)'),
    ('gl', 'Galician'),
    ('gn', 'Guarani'),
    ('gu', 'Gujarati'),
    ('gv', 'Manx Gaelic'),
    ('ha', 'Hausa'),
    ('he', 'Hebrew'),
    ('hi', 'Hindi'),
    ('hr', 'Croatian'),
    ('hu', 'Hungarian'),
    ('hy', 'Armenian'),
    ('ia', 'Interlingua'),
    ('id', 'Indonesian'),
    ('ie', 'Interlingue'),
    ('ik', 'Inupiak'),
    ('is', 'Icelandic'),
    ('it', 'Italian'),
    ('iu', 'Inuktitut'),
    ('ja', 'Japanese'),
    ('jw', 'Javanese'),
    ('ka', 'Georgian'),
    ('kk', 'Kazakh'),
    ('kl', 'Greenlandic'),
    ('km', 'Cambodian'),
    ('kn', 'Kannada'),
    ('ko', 'Korean'),
    ('ks', 'Kashmiri'),
    ('ku', 'Kurdish'),
    ('kw', 'Cornish'),
    ('ky', 'Kirghiz'),
    ('la', 'Latin'),
    ('lb', 'Luxemburgish'),
    ('ln', 'Lingala'),
    ('lo', 'Laotian'),
    ('lt', 'Lithuanian'),
    ('lv', 'Latvian Lettish'),
    ('mg', 'Malagasy'),
    ('mi', 'Maori'),
    ('mk', 'Macedonian'),
    ('ml', 'Malayalam'),
    ('mn', 'Mongolian'),
    ('mo', 'Moldavian'),
    ('mr', 'Marathi'),
    ('ms', 'Malay'),
    ('mt', 'Maltese'),
    ('my', 'Burmese'),
    ('na', 'Nauru'),
    ('ne', 'Nepali'),
    ('nl', 'Dutch'),
    ('no', 'Norwegian'),
    ('oc', 'Occitan'),
    ('om', 'Oromo'),
    ('or', 'Oriya'),
    ('pa', 'Punjabi'),
    ('pl', 'Polish'),
    ('ps', 'Pashto'),
    ('pt', 'Portuguese'),
    ('pt-br', 'Brazilian Portuguese'),
    ('qu', 'Quechua'),
    ('rm', 'Rhaeto-Romance'),
    ('rn', 'Kirundi'),
    ('ro', 'Romanian'),
    ('ru', 'Russian'),
    ('rw', 'Kiyarwanda'),
    ('sa', 'Sanskrit'),
    ('sd', 'Sindhi'),
    ('se', 'Northern Sami'),
    ('sg', 'Sangho'),
    ('sh', 'Serbo-Croatian'),
    ('si', 'Singhalese'),
    ('sk', 'Slovak'),
    ('sl', 'Slovenian'),
    ('sm', 'Samoan'),
    ('sn', 'Shona'),
    ('so', 'Somali'),
    ('sq', 'Albanian'),
    ('sr', 'Serbian'),
    ('ss', 'Siswati'),
    ('st', 'Sesotho'),
    ('su', 'Sudanese'),
    ('sv', 'Swedish'),
    ('sw', 'Swahili'),
    ('ta', 'Tamil'),
    ('te', 'Telugu'),
    ('tg', 'Tajik'),
    ('th', 'Thai'),
    ('ti', 'Tigrinya'),
    ('tk', 'Turkmen'),
    ('tl', 'Tagalog'),
    ('tn', 'Setswana'),
    ('to', 'Tonga'),
    ('tr', 'Turkish'),
    ('ts', 'Tsonga'),
    ('tt', 'Tatar'),
    ('tw', 'Twi'),
    ('ug', 'Uigur'),
    ('uk', 'Ukrainian'),
    ('ur', 'Urdu'),
    ('uz', 'Uzbek'),
    ('vi', 'Vietnamese'),
    ('vo', 'Volapuk'),
    ('wo', 'Wolof'),
    ('xh', 'Xhosa'),
    ('yi', 'Yiddish'),
    ('yo', 'Yorouba'),
    ('za', 'Zhuang'),
    ('zh', 'Chinese'),
    ('zu', 'Zulu')
]
LANGUAGES.sort(lambda x,y:cmp(x[1], y[1]))
# Put language neutral at the top.
LANGUAGES.insert(0,('',u'Language neutral (site default)'))
LANGUAGES_DICT=dict(LANGUAGES)