How can I update particular fields of model with validation in Ruby on Rails? -

there acviterecord model named user this:

class user < activerecord::base   validates :name, :presence => true   validates :email, :presence => true, :uniqueness => true    validates :plain_password, :presence => true, :confirmation => true   validates :plain_password_confirmation, :presence => true   #...other codes end 

it requires update of name , email , update of password separated.

when update name , password, using update or update_attributes cause password validation not needed. using update_attribute save name , email without validation.

are there ways update particular fields of model validation without causing other fields' validation?

give try, might help

class user < activerecord::base   validates :name, presence: true   validates :email, presence: true, :uniqueness => true    validates :plain_password, length: { in: 4..255, allow_nil: true }, confirmation: true   validates :plain_password_confirmation, presence: true, if: -> (user){ user.plain_password.present? }    # ......   # ...... end 

apart should reconsider saving plain_password ;)