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# GNU MediaGoblin -- federated, autonomous media hosting
# Copyright (C) 2011, 2012 MediaGoblin contributors. See AUTHORS.
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero 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 Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
from copy import copy
from mediagoblin.init import setup_global_and_app_config, setup_database
from mediagoblin.db.mongo.util import ObjectId
from mediagoblin.db.sql.base import Base, Session
from mediagoblin.db.sql.models import (User, MediaEntry, MediaComment,
Tag, MediaTag, MediaFile, MediaAttachmentFile, MigrationData)
from mediagoblin.media_types.image.models import ImageData
from mediagoblin.media_types.video.models import VideoData
from mediagoblin.db.sql.open import setup_connection_and_db_from_config as \
sql_connect
from mediagoblin.db.mongo.open import setup_connection_and_db_from_config as \
mongo_connect
obj_id_table = dict()
def add_obj_ids(entry, new_entry):
global obj_id_table
print "%r -> %r" % (entry._id, new_entry.id)
obj_id_table[entry._id] = new_entry.id
def copy_attrs(entry, new_entry, attr_list):
for a in attr_list:
val = entry[a]
setattr(new_entry, a, val)
def copy_reference_attr(entry, new_entry, ref_attr):
val = entry[ref_attr]
val = obj_id_table[val]
setattr(new_entry, ref_attr, val)
def convert_users(mk_db):
session = Session()
for entry in mk_db.User.find().sort('created'):
print entry.username
new_entry = User()
copy_attrs(entry, new_entry,
('username', 'email', 'created', 'pw_hash', 'email_verified',
'status', 'verification_key', 'is_admin', 'url',
'bio',
'fp_verification_key', 'fp_token_expire',))
# new_entry.fp_verification_expire = entry.fp_token_expire
session.add(new_entry)
session.flush()
add_obj_ids(entry, new_entry)
session.commit()
session.close()
def convert_media_entries(mk_db):
session = Session()
for entry in mk_db.MediaEntry.find().sort('created'):
print repr(entry.title)
new_entry = MediaEntry()
copy_attrs(entry, new_entry,
('title', 'slug', 'created',
'description',
'media_type', 'state', 'license',
'fail_error', 'fail_metadata',
'queued_task_id',))
copy_reference_attr(entry, new_entry, "uploader")
session.add(new_entry)
session.flush()
add_obj_ids(entry, new_entry)
for key, value in entry.media_files.iteritems():
new_file = MediaFile(name=key, file_path=value)
new_file.media_entry = new_entry.id
Session.add(new_file)
for attachment in entry.attachment_files:
new_attach = MediaAttachmentFile(
name=attachment["name"],
filepath=attachment["filepath"],
created=attachment["created"]
)
new_attach.media_entry = new_entry.id
Session.add(new_attach)
session.commit()
session.close()
def convert_image(mk_db):
session = Session()
for media in mk_db.MediaEntry.find(
{'media_type': 'mediagoblin.media_types.image'}).sort('created'):
media_data = copy(media.media_data)
if len(media_data):
media_data_row = ImageData(**media_data)
media_data_row.media_entry = obj_id_table[media['_id']]
session.add(media_data_row)
session.commit()
session.close()
def convert_video(mk_db):
session = Session()
for media in mk_db.MediaEntry.find(
{'media_type': 'mediagoblin.media_types.video'}).sort('created'):
media_data_row = VideoData(**media.media_data)
media_data_row.media_entry = obj_id_table[media['_id']]
session.add(media_data_row)
session.commit()
session.close()
def convert_media_tags(mk_db):
session = Session()
session.autoflush = False
for media in mk_db.MediaEntry.find().sort('created'):
print repr(media.title)
for otag in media.tags:
print " ", repr((otag["slug"], otag["name"]))
nslug = session.query(Tag).filter_by(slug=otag["slug"]).first()
print " ", repr(nslug)
if nslug is None:
nslug = Tag(slug=otag["slug"])
session.add(nslug)
session.flush()
print " ", repr(nslug), nslug.id
ntag = MediaTag()
ntag.tag = nslug.id
ntag.name = otag["name"]
ntag.media_entry = obj_id_table[media._id]
session.add(ntag)
session.commit()
session.close()
def convert_media_comments(mk_db):
session = Session()
for entry in mk_db.MediaComment.find().sort('created'):
print repr(entry.content)
new_entry = MediaComment()
copy_attrs(entry, new_entry,
('created',
'content',))
copy_reference_attr(entry, new_entry, "media_entry")
copy_reference_attr(entry, new_entry, "author")
session.add(new_entry)
session.flush()
add_obj_ids(entry, new_entry)
session.commit()
session.close()
def convert_add_migration_versions():
session = Session()
for name in ("__main__",
"mediagoblin.media_types.image",
"mediagoblin.media_types.video",
):
m = MigrationData(name=name, version=0)
session.add(m)
session.commit()
session.close()
def run_conversion(config_name):
global_config, app_config = setup_global_and_app_config(config_name)
sql_conn, sql_db = sql_connect(app_config)
mk_conn, mk_db = mongo_connect(app_config)
Base.metadata.create_all(sql_db.engine)
convert_users(mk_db)
Session.remove()
convert_media_entries(mk_db)
Session.remove()
convert_image(mk_db)
Session.remove()
convert_video(mk_db)
Session.remove()
convert_media_tags(mk_db)
Session.remove()
convert_media_comments(mk_db)
Session.remove()
convert_add_migration_versions()
Session.remove()
if __name__ == '__main__':
run_conversion("mediagoblin.ini")
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