Override/Overlay Dam Asset Metadata in AEM 6.2

Use Case: Recently I have gone through a scenario. In which I want to change the dam asset properties and want to add a new widget as well.

This image depicts the default touch ui dialog available for dam asset properties. Now I want to change/add a rootPath for tags so that I can select tags from specific hierarchy only.

This Default dialog comes from “/libs/dam/content/schemaeditors/forms/default”. But According to the AEM Best Practice, we never do any change in /libs hierarchy.

Fig: DAM Asset Property Dialog

Now I thought about the below concepts:

• I have tried to do that using Resource Merger, but it didn’t work.
  

• After that, I have tried the same using Overlay the complete hierarchy in /apps but it also didn’t work.

Solution:

In AEM 6.2 the correct way to do this is through  "metadata schema".To add/change the properties for dam asset properties, use a custom metadata schema form or modify an existing form. So I decided to go for modifying an existing form.

Below Steps we need to follow:

Step 1: Go to Projects.html.

Step 2: Click on Adobe Experience Manager

Step 3: Go to Tools and click on Assets.

Step 4: Click on Metadata Schema

Step 5:  Select Default and go to edit.

Step 6: In this Edit Form, you can see all the fields available in the metadata dialog.

Fig: Modifying Existing Form
Step 7: In the url query parameter , you can see "formpath=/conf/global/settings/dam/adminui-extension/metadataschema"

Now just change some title in dialog suppose test title and check it in the same path.

Fig: Add/Change Properties in conf Hierarchy in CRX

Now I just add the property rootPath in my tags node and when I go for any image /asset metadata.

I am able to see the title to Test Title.

Fig: Updated Dialog After Modification

And when I click on tags, I can find tags available under /etc/tags/forum.

Fig: Updated the root path for Tag widget

So This was the solution of the above problem.