Dynamically scaffolded Edit-View gives incorrect feedback for illegal Updates

[markoschnecke]

Steps to Reproduce

1. create an exampleDomain with a string that is unique
2. create a controller for that domain with static scaffold = exampleDomain
3. start the application
4. create two objects ("1" & "2")
5. edit the string in object "1" to "2"

Expected Behaviour

The application should give an error message that the string is unique and thus can't be renamed

Actual Behaviour

The application responds that the update was successful while the update did not actually take place

Environment Information

• Operating System: Ubuntu
• Grails Version: 3.1.6
• JDK Version: 1.7

Example Application

See attachment

[fbartnitzek]

the bug still exists in current / the latest grails versions:

• grails v3.2.8 with plugin v3.3.2
• grails v3.3.1 with plugin v3.4.0

see example app: https://github.com/fbartnitzek/grails3-no-scaffold-validation-msg

IMHO its a huge grails-bug if the standard validation of a domain class does not work properly and should not be ignored for more than a year (plugin or not).

[mrankin32]

I'm having the same issue a year later with grails v3.2.11 with plugin v3.4.1

Looking at the code from here it looks like an easy fix.

try { ${propertyName}Service.save(${propertyName}) } catch (ValidationException e) { respond ${propertyName}.errors, view:'create' return }

The above code does not catch the ValidationException because save(failOnError:true) isn't set.