5 files changed, 20 insertions, 5 deletions
diff --git a/mediagoblin/media_types/ascii/models.py b/mediagoblin/media_types/ascii/models.py
index 865c216c..60420fdd 100644
--- a/mediagoblin/media_types/ascii/models.py
+++ b/mediagoblin/media_types/ascii/models.py
@@ -22,6 +22,9 @@ from sqlalchemy import (
 from sqlalchemy.orm import relationship, backref
 
 
+BACKREF_NAME = "ascii__media_data"
+
+
 class AsciiData(Base):
     __tablename__ = "ascii__mediadata"
 
@@ -29,7 +32,7 @@ class AsciiData(Base):
     media_entry = Column(Integer, ForeignKey('core__media_entries.id'),
         primary_key=True)
     get_media_entry = relationship("MediaEntry",
-        backref=backref("ascii__media_data", cascade="all, delete-orphan"))
+        backref=backref(BACKREF_NAME, cascade="all, delete-orphan"))
 
 
 DATA_MODEL = AsciiData
diff --git a/mediagoblin/media_types/audio/models.py b/mediagoblin/media_types/audio/models.py
index 5f18d2c2..08a90f54 100644
--- a/mediagoblin/media_types/audio/models.py
+++ b/mediagoblin/media_types/audio/models.py
@@ -22,6 +22,9 @@ from sqlalchemy import (
 from sqlalchemy.orm import relationship, backref
 
 
+BACKREF_NAME = "audio__media_data"
+
+
 class AudioData(Base):
     __tablename__ = "audio__mediadata"
 
@@ -29,7 +32,7 @@ class AudioData(Base):
     media_entry = Column(Integer, ForeignKey('core__media_entries.id'),
         primary_key=True)
     get_media_entry = relationship("MediaEntry",
-        backref=backref("audio__media_data", cascade="all, delete-orphan"))
+        backref=backref(BACKREF_NAME, cascade="all, delete-orphan"))
 
 
 DATA_MODEL = AudioData
diff --git a/mediagoblin/media_types/image/models.py b/mediagoblin/media_types/image/models.py
index fc518daa..f54a0762 100644
--- a/mediagoblin/media_types/image/models.py
+++ b/mediagoblin/media_types/image/models.py
@@ -23,6 +23,9 @@ from sqlalchemy.orm import relationship, backref
 from mediagoblin.db.sql.extratypes import JSONEncoded
 
 
+BACKREF_NAME = "image__media_data"
+
+
 class ImageData(Base):
     __tablename__ = "image__mediadata"
 
@@ -30,7 +33,7 @@ class ImageData(Base):
     media_entry = Column(Integer, ForeignKey('core__media_entries.id'),
         primary_key=True)
     get_media_entry = relationship("MediaEntry",
-        backref=backref("image__media_data", cascade="all, delete-orphan"))
+        backref=backref(BACKREF_NAME, cascade="all, delete-orphan"))
 
     width = Column(Integer)
     height = Column(Integer)
diff --git a/mediagoblin/media_types/stl/models.py b/mediagoblin/media_types/stl/models.py
index ccb1b9dc..0ed4a2e5 100644
--- a/mediagoblin/media_types/stl/models.py
+++ b/mediagoblin/media_types/stl/models.py
@@ -22,6 +22,9 @@ from sqlalchemy import (
 from sqlalchemy.orm import relationship, backref
 
 
+BACKREF_NAME = "stl__media_data"
+
+
 class StlData(Base):
     __tablename__ = "stl__mediadata"
 
@@ -29,7 +32,7 @@ class StlData(Base):
     media_entry = Column(Integer, ForeignKey('core__media_entries.id'),
         primary_key=True)
     get_media_entry = relationship("MediaEntry",
-        backref=backref("stl__media_data", cascade="all, delete-orphan"))
+        backref=backref(BACKREF_NAME, cascade="all, delete-orphan"))
 
     center_x = Column(Float)
     center_y = Column(Float)
diff --git a/mediagoblin/media_types/video/models.py b/mediagoblin/media_types/video/models.py
index 35ed92bf..4e02cb9a 100644
--- a/mediagoblin/media_types/video/models.py
+++ b/mediagoblin/media_types/video/models.py
@@ -22,6 +22,9 @@ from sqlalchemy import (
 from sqlalchemy.orm import relationship, backref
 
 
+BACKREF_NAME = "video__media_data"
+
+
 class VideoData(Base):
     __tablename__ = "video__mediadata"
 
@@ -29,7 +32,7 @@ class VideoData(Base):
     media_entry = Column(Integer, ForeignKey('core__media_entries.id'),
         primary_key=True)
     get_media_entry = relationship("MediaEntry",
-        backref=backref("video__media_data", cascade="all, delete-orphan"))
+        backref=backref(BACKREF_NAME, cascade="all, delete-orphan"))
 
     width = Column(SmallInteger)
     height = Column(SmallInteger)