fix column type

Author: jdshaw

migrations/003_change_content_warnings_description_field_type.rb

@@ -0,0 +1,14 @@
+require 'db/migrations/utils'
+
+Sequel.migration do
+
+  up do
+    $stderr.puts("Changing Content Warning description field from MediumBlob to Text")
+
+    alter_table(:content_warning) do
+      set_column_type(:description, 'text')
+    end
+
+  end
+
+end