First, you can have a basic validation via JS adding to that body input the attribute required: true. That will trigger HTML5 validation if you try tu submit a empty input. If you have your validation via ActiveRecord in your model, you need tu put specific code in your view to show the error. Are you looking for @your_record.errors ? You can see the error messages triggered by your validation (on the model) looking at @your_record.errors.full_messages
El miércoles, 26 de diciembre de 2018, 7:58:32 (UTC-3), jason cao escribió: > > Hi, > > How can I show error messages if a comment is invalid? E.g. when a comment > body is empty. I add validation in the model class, and the validation > itself works, but it won't show any error message. Can you please help? > Many thanks! > > Regards, > Jason > -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To unsubscribe from this group and stop receiving emails from it, send an email to rubyonrails-talk+unsubscr...@googlegroups.com. To post to this group, send email to rubyonrails-talk@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/rubyonrails-talk/66e477a6-d771-4544-b621-3cf8d91fb037%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
