+ def get_file_metadata(self, file_key, metadata_key=None):
+ """
+ Return the file_metadata dict of a MediaFile. If metadata_key is given,
+ return the value of the key.
+ """
+ media_file = MediaFile.query.filter_by(media_entry=self.id,
+ name=unicode(file_key)).first()
+
+ if media_file:
+ if metadata_key:
+ return media_file.file_metadata.get(metadata_key, None)
+
+ return media_file.file_metadata
+
+ def set_file_metadata(self, file_key, **kwargs):
+ """
+ Update the file_metadata of a MediaFile.
+ """
+ media_file = MediaFile.query.filter_by(media_entry=self.id,
+ name=unicode(file_key)).first()
+
+ file_metadata = media_file.file_metadata or {}
+
+ for key, value in kwargs.iteritems():
+ file_metadata[key] = value
+
+ media_file.file_metadata = file_metadata
+