Rails validation error messages: Displaying only one error message per field

Question

Rails displays all validation error messages associated with a given field. If I have three validates_XXXXX_of :email, and I leave the field blank, I get three

Answer 1

I think the easiest way is to use allow_bank option. For example, to avoid display the message that the name is too short when the field is left blank, you can do the following:

validates_length_of :name, allow_blank:true, :in => 6..30