修正迁移数据 PageVersion desc 字段可能为空导致异常的问题;

Author: huacnlee

lib/tasks/db.rake

@@ -28,10 +28,18 @@ def append(klass, doc)
     doc[:type] = doc.delete(:_type)
   end
 
+  if klass == User
+    doc[:name] ||= ''
+  end
+
   if klass == Note
     doc[:title] ||= ''
   end
 
+  if klass == PageVersion
+    doc[:desc] ||= ''
+  end
+
   item = klass.unscoped.find_or_initialize_by(id: doc[:id].to_i)
   item.attributes = doc.reject{ |k,v| !item.attributes.keys.member?(k.to_s) }
   if item.save(validate: false)