1 files changed, 38 insertions, 0 deletions
diff --git a/mediagoblin/db/mongo/migrations.py b/mediagoblin/db/mongo/migrations.py
index 261e21a5..c5766b0d 100644
--- a/mediagoblin/db/mongo/migrations.py
+++ b/mediagoblin/db/mongo/migrations.py
@@ -29,6 +29,16 @@ def add_table_field(db, table_name, field_name, default_value):
         multi=True)
 
 
+def drop_table_field(db, table_name, field_name):
+    """
+    Drop an old field from a table/collection
+    """
+    db[table_name].update(
+        {field_name: {'$exists': True}},
+        {'$unset': {field_name: 1}},
+        multi=True)
+
+
 # Please see mediagoblin/tests/test_migrations.py for some examples of
 # basic migrations.
 
@@ -115,3 +125,31 @@ def mediaentry_add_license(database):
     Add the 'license' field for entries that don't have it.
     """
     add_table_field(database, 'media_entries', 'license', None)
+
+
+@RegisterMigration(9)
+def remove_calculated_html(database):
+    """
+    Drop pre-rendered html again and calculate things
+    on the fly (and cache):
+    - User.bio_html
+    - MediaEntry.description_html
+    - MediaComment.content_html
+    """
+    drop_table_field(database, 'users', 'bio_html')
+    drop_table_field(database, 'media_entries', 'description_html')
+    drop_table_field(database, 'media_comments', 'content_html')
+
+@RegisterMigration(10)
+def convert_video_media_data(database):
+    """
+    Move media_data["video"] directly into media_data
+    """
+    collection = database['media_entries']
+    target = collection.find(
+        {'media_data.video': {'$exists': True}})
+
+    for document in target:
+        assert len(document['media_data']) == 1
+        document['media_data'] = document['media_data']['video']
+        collection.save(document)