Consolidated the video and channel attribute edits into one javascript function

lib/routes/channel.rb

@@ -79,14 +79,14 @@ namespace '/channel' do
     attrToEdit = params[:attr]
 
     if attrToEdit == 'directory_path'
-      File.rename(channel.directory_path, params[attrToEdit])
+      File.rename(channel.directory_path, params[:value])
       channel.videos.each do |v|
-        video_path = v.directory_path.sub(channel.directory_path, params[attrToEdit])
+        video_path = v.directory_path.sub(channel.directory_path, params[:value])
         v.update(directory_path: video_path)
       end
     end
 
-    channel[attrToEdit.to_sym] = params[attrToEdit]
+    channel[attrToEdit.to_sym] = params[:value]
     channel.save()
 
     return "success"

lib/routes/video.rb

@@ -111,7 +111,15 @@ namespace '/video' do
     video = Video.where(id: params[:video_id]).first()
     attrToEdit = params[:attr]
 
-    video[attrToEdit.to_sym] = params[attrToEdit]
+    # if we update the video's serial, we need to also update the directory path
+    if attrToEdit == 'serial'
+      old_path = video.directory_path
+      new_path = video.directory_path.sub("##{video.serial}", "##{params[:value]}")
+      File.rename(old_path, new_path)
+      video[:directory_path] = new_path
+    end
+
+    video[attrToEdit.to_sym] = params[:value]
     video.save()
 
     return "success"