Changing an XML record in beforeSaving_xxx

[TalendSolutionExpert]

Overview

Talend MDM (Master Data Management) provides a beforeSaving_xxx process to validate the data when you update a Talend MDM record. Furthermore, it is possible to change the XML record in beforeSaving_xxx by providing one special output variable, output_item. This article explains how to do it.

Environment

This procedure applies to Talend MDM v5.1.x or higher.

Resolution

In a beforeSaving_xxx process, there is a special output variable, output_report, used to show the update report message as in the formatted string below:

<report> <message type="info|error"> xxx report message xxx </message> </report>

• info: validation OK.
• error: validation failed.

There is another output variable, output_item, used to change the XML record as in the formatted string below:

<exchange> <item> xxx the updated xml record string xxx </item> </exchange>

Here is an example of how to change the XML record in a beforeSaving_xxx process:

The beforeSaving_Entity_3 process contains 2 steps: Change and Check.

1. Change the step as below:

   

2. Check the step as below:

   

Steps to reproduce the issue

1. Import mdmitems.zip (attached) to the Studio, then deploy all items to MDM server.
2. Import jobs.zip (attached) to the Studio, then deploy the 2 Jobs to the MDM server.
3. Log in to the Web User Interface, create one Entity_3 record, and save it.
4. Update Field_2 and Field_3, then Save. The Date will be updated with the value of the current time.

The files jobs.zip and mdmitems.zip are exported from Talend 5.3.1.

Related Jira Issues

TMDM-1816 - Let a before saving process alter the item before it is committed to the db - Closed