mediagoblin/db/models.py

   1 # GNU MediaGoblin -- federated, autonomous media hosting
   2 # Copyright (C) 2011 Free Software Foundation, Inc
   3 #
   4 # This program is free software: you can redistribute it and/or modify
   5 # it under the terms of the GNU Affero General Public License as published by
   6 # the Free Software Foundation, either version 3 of the License, or
   7 # (at your option) any later version.
   8 #
   9 # This program is distributed in the hope that it will be useful,
  10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 # GNU Affero General Public License for more details.
  13 #
  14 # You should have received a copy of the GNU Affero General Public License
  15 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16
  17 import datetime, uuid
  18
  19 from mongokit import Document, Set
  20
  21 from mediagoblin import util
  22 from mediagoblin.auth import lib as auth_lib
  23 from mediagoblin import mg_globals
  24 from mediagoblin.db import migrations
  25 from mediagoblin.db.util import ASCENDING, DESCENDING, ObjectId
  26
  27 ###################
  28 # Custom validators
  29 ###################
  30
  31 ########
  32 # Models
  33 ########
  34
  35
  36 class User(Document):
  37     __collection__ = 'users'
  38
  39     structure = {
  40         'username': unicode,
  41         'email': unicode,
  42         'created': datetime.datetime,
  43         'plugin_data': dict, # plugins can dump stuff here.
  44         'pw_hash': unicode,
  45         'email_verified': bool,
  46         'status': unicode,
  47         'verification_key': unicode,
  48         'is_admin': bool,
  49         'url' : unicode,
  50         'bio' : unicode
  51         }
  52
  53     required_fields = ['username', 'created', 'pw_hash', 'email']
  54
  55     default_values = {
  56         'created': datetime.datetime.utcnow,
  57         'email_verified': False,
  58         'status': u'needs_email_verification',
  59         'verification_key': lambda: unicode(uuid.uuid4()),
  60         'is_admin': False}
  61
  62     migration_handler = migrations.UserMigration
  63
  64     def check_login(self, password):
  65         """
  66         See if a user can login with this password
  67         """
  68         return auth_lib.bcrypt_check_password(
  69             password, self['pw_hash'])
  70
  71
  72 class MediaEntry(Document):
  73     __collection__ = 'media_entries'
  74
  75     structure = {
  76         'uploader': ObjectId,
  77         'title': unicode,
  78         'slug': unicode,
  79         'created': datetime.datetime,
  80         'description': unicode, # May contain markdown/up
  81         'description_html': unicode, # May contain plaintext, or HTML
  82         'media_type': unicode,
  83         'media_data': dict, # extra data relevant to this media_type
  84         'plugin_data': dict, # plugins can dump stuff here.
  85         'tags': [unicode],
  86         'state': unicode,
  87
  88         # For now let's assume there can only be one main file queued
  89         # at a time
  90         'queued_media_file': [unicode],
  91
  92         # A dictionary of logical names to filepaths
  93         'media_files': dict,
  94
  95         # The following should be lists of lists, in appropriate file
  96         # record form
  97         'attachment_files': list,
  98
  99         # This one should just be a single file record
 100         'thumbnail_file': [unicode]}
 101
 102     required_fields = [
 103         'uploader', 'created', 'media_type', 'slug']
 104
 105     default_values = {
 106         'created': datetime.datetime.utcnow,
 107         'state': u'unprocessed'}
 108
 109     migration_handler = migrations.MediaEntryMigration
 110
 111     def get_comments(self):
 112         return self.db.MediaComment.find({
 113                 'media_entry': self['_id']}).sort('created', DESCENDING)
 114
 115     def main_mediafile(self):
 116         pass
 117
 118     def generate_slug(self):
 119         self['slug'] = util.slugify(self['title'])
 120
 121         duplicate = mg_globals.database.media_entries.find_one(
 122             {'slug': self['slug']})
 123
 124         if duplicate:
 125             self['slug'] = "%s-%s" % (self['_id'], self['slug'])
 126
 127     def url_for_self(self, urlgen):
 128         """
 129         Generate an appropriate url for ourselves
 130
 131         Use a slug if we have one, else use our '_id'.
 132         """
 133         uploader = self.uploader()
 134
 135         if self.get('slug'):
 136             return urlgen(
 137                 'mediagoblin.user_pages.media_home',
 138                 user=uploader['username'],
 139                 media=self['slug'])
 140         else:
 141             return urlgen(
 142                 'mediagoblin.user_pages.media_home',
 143                 user=uploader['username'],
 144                 media=unicode(self['_id']))
 145
 146     def url_to_prev(self, urlgen):
 147         """
 148         Provide a url to the previous entry from this user, if there is one
 149         """
 150         cursor = self.db.MediaEntry.find({'_id' : {"$lt": self['_id']},
 151                                           'uploader': self['uploader'],
 152                                           'state': 'processed'}).sort(
 153                                                     '_id', ASCENDING).limit(1)
 154         if cursor.count():
 155             return urlgen('mediagoblin.user_pages.media_home',
 156                           user=self.uploader()['username'],
 157                           media=unicode(cursor[0]['slug']))
 158
 159     def url_to_next(self, urlgen):
 160         """
 161         Provide a url to the next entry from this user, if there is one
 162         """
 163         cursor = self.db.MediaEntry.find({'_id' : {"$gt": self['_id']},
 164                                           'uploader': self['uploader'],
 165                                           'state': 'processed'}).sort(
 166                                                     '_id', DESCENDING).limit(1)
 167
 168         if cursor.count():
 169             return urlgen('mediagoblin.user_pages.media_home',
 170                           user=self.uploader()['username'],
 171                           media=unicode(cursor[0]['slug']))
 172
 173     def uploader(self):
 174         return self.db.User.find_one({'_id': self['uploader']})
 175
 176
 177 class MediaComment(Document):
 178     __collection__ = 'media_comments'
 179
 180     structure = {
 181         'media_entry': ObjectId,
 182         'author': ObjectId,
 183         'created': datetime.datetime,
 184         'content': unicode,
 185         'content_html': unicode}
 186
 187     required_fields = [
 188         'media_entry', 'author', 'created', 'content']
 189
 190     default_values = {
 191         'created': datetime.datetime.utcnow}
 192
 193     def media_entry(self):
 194         return self.db.MediaEntry.find_one({'_id': self['media_entry']})
 195
 196     def author(self):
 197         return self.db.User.find_one({'_id': self['author']})
 198
 199 REGISTER_MODELS = [
 200     MediaEntry,
 201     User,
 202     MediaComment]
 203
 204
 205 def register_models(connection):
 206     """
 207     Register all models in REGISTER_MODELS with this connection.
 208     """
 209     connection.register(REGISTER_MODELS)
 210