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Grails : How to read error without using g:view (in controller / service)

/ Published in: Groovy
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how to read error message as string instead of complicated codes. usually people using taglib to read error messages. but how to read it in controller/service if you, for example, want to log or render just the message. here is how to do that.

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  1. // in controller/services :
  2. class GrailsService { 
  3.     boolean transactional = true
  4.     def messageSource ; 
  5.  
  6.     def locale = Locale.getDefault()
  7.   domainObj.errors.each { fieldErrors ->
  8.      fieldErrors.allErrors.each { error ->
  9.         log.warn messageSource.getMessage(error, locale)
  10.      }
  11.   }
  12.  
  13. }

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