Merge branch 'ticket-679' into OPW-Moderation-Update
[mediagoblin.git] / mediagoblin / db / migrations.py
index 80ec5269a24123c3ddfa388fb2b52e5e8ae73e47..53df795458da2e6e4229d3b9233825520e87043f 100644 (file)
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 import datetime
+import uuid
 
 from sqlalchemy import (MetaData, Table, Column, Boolean, SmallInteger,
                         Integer, Unicode, UnicodeText, DateTime,
                         ForeignKey)
 from sqlalchemy.exc import ProgrammingError
 from sqlalchemy.ext.declarative import declarative_base
+from sqlalchemy.sql import and_
 from migrate.changeset.constraint import UniqueConstraint
 
 from mediagoblin.db.migration_tools import RegisterMigration, inspect_table
-from mediagoblin.db.models import MediaEntry, Collection, User
+from mediagoblin.db.models import (MediaEntry, Collection, User, 
+                                   MediaComment, Privilege, ReportBase)
 
 MIGRATIONS = {}
 
@@ -184,3 +187,268 @@ def fix_CollectionItem_v0_constraint(db_conn):
         pass
 
     db_conn.commit()
+
+
+@RegisterMigration(8, MIGRATIONS)
+def add_license_preference(db):
+    metadata = MetaData(bind=db.bind)
+
+    user_table = inspect_table(metadata, 'core__users')
+
+    col = Column('license_preference', Unicode)
+    col.create(user_table)
+    db.commit()
+
+
+@RegisterMigration(9, MIGRATIONS)
+def mediaentry_new_slug_era(db):
+    """
+    Update for the new era for media type slugs.
+
+    Entries without slugs now display differently in the url like:
+      /u/cwebber/m/id=251/
+
+    ... because of this, we should back-convert:
+     - entries without slugs should be converted to use the id, if possible, to
+       make old urls still work
+     - slugs with = (or also : which is now also not allowed) to have those
+       stripped out (small possibility of breakage here sadly)
+    """
+
+    def slug_and_user_combo_exists(slug, uploader):
+        return db.execute(
+            media_table.select(
+                and_(media_table.c.uploader==uploader,
+                     media_table.c.slug==slug))).first() is not None
+
+    def append_garbage_till_unique(row, new_slug):
+        """
+        Attach junk to this row until it's unique, then save it
+        """
+        if slug_and_user_combo_exists(new_slug, row.uploader):
+            # okay, still no success;
+            # let's whack junk on there till it's unique.
+            new_slug += '-' + uuid.uuid4().hex[:4]
+            # keep going if necessary!
+            while slug_and_user_combo_exists(new_slug, row.uploader):
+                new_slug += uuid.uuid4().hex[:4]
+
+        db.execute(
+            media_table.update(). \
+            where(media_table.c.id==row.id). \
+            values(slug=new_slug))
+
+    metadata = MetaData(bind=db.bind)
+
+    media_table = inspect_table(metadata, 'core__media_entries')
+
+    for row in db.execute(media_table.select()):
+        # no slug, try setting to an id
+        if not row.slug:
+            append_garbage_till_unique(row, unicode(row.id))
+        # has "=" or ":" in it... we're getting rid of those
+        elif u"=" in row.slug or u":" in row.slug:
+            append_garbage_till_unique(
+                row, row.slug.replace(u"=", u"-").replace(u":", u"-"))
+
+    db.commit()
+
+
+@RegisterMigration(10, MIGRATIONS)
+def unique_collections_slug(db):
+    """Add unique constraint to collection slug"""
+    metadata = MetaData(bind=db.bind)
+    collection_table = inspect_table(metadata, "core__collections")
+    existing_slugs = {}
+    slugs_to_change = []
+
+    for row in db.execute(collection_table.select()):
+        # if duplicate slug, generate a unique slug
+        if row.creator in existing_slugs and row.slug in \
+           existing_slugs[row.creator]:
+            slugs_to_change.append(row.id)
+        else:
+            if not row.creator in existing_slugs:
+                existing_slugs[row.creator] = [row.slug]
+            else:
+                existing_slugs[row.creator].append(row.slug)
+
+    for row_id in slugs_to_change:
+        new_slug = unicode(uuid.uuid4())
+        db.execute(collection_table.update().
+                   where(collection_table.c.id == row_id).
+                   values(slug=new_slug))
+    # sqlite does not like to change the schema when a transaction(update) is
+    # not yet completed
+    db.commit()
+
+    constraint = UniqueConstraint('creator', 'slug',
+                                  name='core__collection_creator_slug_key',
+                                  table=collection_table)
+    constraint.create()
+
+    db.commit()
+
+@RegisterMigration(11, MIGRATIONS)
+def drop_token_related_User_columns(db):
+    """
+    Drop unneeded columns from the User table after switching to using
+    itsdangerous tokens for email and forgot password verification.
+    """
+    metadata = MetaData(bind=db.bind)
+    user_table = inspect_table(metadata, 'core__users')
+
+
+    verification_key = user_table.columns['verification_key']
+    fp_verification_key = user_table.columns['fp_verification_key']
+    fp_token_expire = user_table.columns['fp_token_expire']
+
+    verification_key.drop()
+    fp_verification_key.drop()
+    fp_token_expire.drop()
+
+    db.commit()
+
+
+class CommentSubscription_v0(declarative_base()):
+    __tablename__ = 'core__comment_subscriptions'
+    id = Column(Integer, primary_key=True)
+
+    created = Column(DateTime, nullable=False, default=datetime.datetime.now)
+
+    media_entry_id = Column(Integer, ForeignKey(MediaEntry.id), nullable=False)
+
+    user_id = Column(Integer, ForeignKey(User.id), nullable=False)
+
+
+    notify = Column(Boolean, nullable=False, default=True)
+    send_email = Column(Boolean, nullable=False, default=True)
+
+
+class Notification_v0(declarative_base()):
+    __tablename__ = 'core__notifications'
+    id = Column(Integer, primary_key=True)
+    type = Column(Unicode)
+
+    created = Column(DateTime, nullable=False, default=datetime.datetime.now)
+
+    user_id = Column(Integer, ForeignKey(User.id), nullable=False,
+                     index=True)
+    seen = Column(Boolean, default=lambda: False, index=True)
+
+
+class CommentNotification_v0(Notification_v0):
+    __tablename__ = 'core__comment_notifications'
+    id = Column(Integer, ForeignKey(Notification_v0.id), primary_key=True)
+
+    subject_id = Column(Integer, ForeignKey(MediaComment.id))
+
+
+class ProcessingNotification_v0(Notification_v0):
+    __tablename__ = 'core__processing_notifications'
+
+    id = Column(Integer, ForeignKey(Notification_v0.id), primary_key=True)
+
+    subject_id = Column(Integer, ForeignKey(MediaEntry.id))
+
+
+@RegisterMigration(12, MIGRATIONS)
+def add_new_notification_tables(db):
+    metadata = MetaData(bind=db.bind)
+
+    user_table = inspect_table(metadata, 'core__users')
+    mediaentry_table = inspect_table(metadata, 'core__media_entries')
+    mediacomment_table = inspect_table(metadata, 'core__media_comments')
+
+    CommentSubscription_v0.__table__.create(db.bind)
+
+    Notification_v0.__table__.create(db.bind)
+    CommentNotification_v0.__table__.create(db.bind)
+    ProcessingNotification_v0.__table__.create(db.bind)
+
+
+@RegisterMigration(13, MIGRATIONS)
+def pw_hash_nullable(db):
+    """Make pw_hash column nullable"""
+    metadata = MetaData(bind=db.bind)
+    user_table = inspect_table(metadata, "core__users")
+
+    user_table.c.pw_hash.alter(nullable=True)
+
+    # sqlite+sqlalchemy seems to drop this constraint during the
+    # migration, so we add it back here for now a bit manually.
+    if db.bind.url.drivername == 'sqlite':
+        constraint = UniqueConstraint('username', table=user_table)
+        constraint.create()
+
+class ReportBase_v0(declarative_base()):
+    __tablename__ = 'core__reports'
+    id = Column(Integer, primary_key=True)
+    reporter_id = Column(Integer, ForeignKey(User.id), nullable=False)
+    report_content = Column(UnicodeText)
+    reported_user_id = Column(Integer, ForeignKey(User.id), nullable=False)
+    created = Column(DateTime, nullable=False, default=datetime.datetime.now) 
+    discriminator = Column('type', Unicode(50))
+    __mapper_args__ = {'polymorphic_on': discriminator}
+
+class CommentReport_v0(ReportBase_v0):
+    __tablename__ = 'core__reports_on_comments'
+    __mapper_args__ = {'polymorphic_identity': 'comment_report'}
+
+    id = Column('id',Integer, ForeignKey('core__reports.id'),
+                                                primary_key=True)
+    comment_id = Column(Integer, ForeignKey(MediaComment.id), nullable=False)
+
+class MediaReport_v0(ReportBase_v0):
+    __tablename__ = 'core__reports_on_media'
+    __mapper_args__ = {'polymorphic_identity': 'media_report'}
+
+    id = Column('id',Integer, ForeignKey('core__reports.id'), primary_key=True)
+    media_entry_id = Column(Integer, ForeignKey(MediaEntry.i
+
+class ArchivedReport_v0(ReportBase_v0):
+    __tablename__ = 'core__reports_archived'
+    __mapper_args__ = {'polymorphic_identity': 'archived_report'}
+
+    id = Column('id',Integer, ForeignKey('core__reports.id'))
+    media_entry_id = Column(Integer, ForeignKey(MediaEntry.id))
+    comment_id = Column(Integer, ForeignKey(MediaComment.id))
+    resolver_id = Column(Integer, ForeignKey(User.id), nullable=False)
+    resolved_time = Column(DateTime)
+    result = Column(UnicodeText)
+
+class UserBan_v0(declarative_base()):
+    __tablename__ = 'core__user_bans'
+    user_id = Column('id',Integer, ForeignKey(User.id), nullable=False,
+                                         primary_key=True)
+    expiration_date = Column(DateTime)
+    reason = Column(UnicodeText, nullable=False)
+
+class Privilege_v0(declarative_base()):
+    __tablename__ = 'core__privileges'
+    id = Column(Integer, nullable=False, primary_key=True, unique=True)
+    privilege_name = Column(Unicode, nullable=False)
+
+class PrivilegeUserAssociation_v0(declarative_base()):
+    __tablename__ = 'core__privileges_users'
+    group_id = Column(
+        'core__privilege_id', 
+        Integer, 
+        ForeignKey(User.id), 
+        primary_key=True)
+    user_id = Column(
+        'core__user_id', 
+        Integer, 
+        ForeignKey(Privilege.id), 
+        primary_key=True)
+
+@RegisterMigration(14, MIGRATIONS)
+def create_moderation_tables(db):
+    ReportBase_v0.__table__.create(db.bind)
+    CommentReport_v0.__table__.create(db.bind)
+    MediaReport_v0.__table__.create(db.bind)
+    ArchivedReport_v0.__table__.create(db.bind)
+    UserBan_v0.__table__.create(db.bind)
+    Privilege_v0.__table__.create(db.bind)
+    PrivilegeUserAssociation_v0.__table__.create(db.bind)
+    db.commit()