Fixed order & changed method bang

app/models/user.rb

 class User < ApplicationRecord
-  before_save { self.email = email.downcase }
-  validates :name,  presence: true, length: { maximum: 50 }
   VALID_EMAIL_REGEX = /\A[\w+\-.]+@[a-z\d\-.]+\.[a-z]+\z/i
-  validates :email, presence: true, length: { maximum: 255 },
-  format: { with: VALID_EMAIL_REGEX },
-  uniqueness: { case_sensitive: false }
+
+  validates  :email, presence:   true, length:   {   maximum: 255   },  format:   {   with:   VALID_EMAIL_REGEX   }
+  validates  :name,  presence:   true, length:   {   maximum: 50  },  uniqueness:  {   case_sensitive: false  }
+  validates  :password,  presence:   true, length:   {   minimum: 6   }
+
+  before_save   {  self.email = email.downcase!   }
+  
   has_secure_password
-  validates :password, presence: true, length: { minimum: 6 }
 end