skipping validations in rails, how to define each instance of the class - ruby-on-rails

Question

I need to add the skip validation methods to my sessions controller but i am unsure what to define omniauth as and basic login as. Ie they are both from class User but in sessions controller do I put
def create
user = User.from_omniauth(env["omniauth.auth"])
**user.from_omniauth.skip_name_validation = true**
etc etc
Then also want to add validate for the methods in the model as put in bold and add that to my sessions controller so both instances of each login are able to be bypassed.
My sessions controller
def create
user = User.from_omniauth(env["omniauth.auth"])
unless user.present?
user = User.find_by(email: params[:session][:email].downcase)
if user && user.authenticate(params[:session][:password])
log_in user
redirect_to user
# Log the user in and redirect to the user's show page.
else
# Create an error message.
flash.now[:danger] = 'Invalid email/password combination'
render 'new'
end
else
log_in user
redirect_to user
end
end
My model.rb
class User < ApplicationRecord
before_save { self.email = email.downcase }
validates :name, presence: true, length: { maximum: 50 },
**unless: :skip_name_validation**
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 },
**unless: :skip_email_validation**
has_secure_password
validates :password, presence: true, length: { minimum: 6 }, allow_nil:true,
**unless: :skip_password_validation**
**attr_accessor :skip_name_validation, :skip_email_validation, :skip_password_validation**
**attr_accessor :skip_User, :skip_self**
**validate :User, unless: :skip_User**
**validate :self, unless: :skip_self**
def User.digest(string)
cost = ActiveModel::SecurePassword.min_cost ? BCrypt::Engine::MIN_COST :
BCrypt::Engine.cost
BCrypt::Password.create(string, cost: cost)
end
def self.from_omniauth(auth)
where(provider: auth.provider, uid: auth.uid).first_or_create do |user|
user.provider = auth.provider
user.uid = auth.uid
user.name = auth.info.name
user.oauth_token = auth.credentials.token
user.oauth_expires_at = Time.at(auth.credentials.expires_at)
user.save!
end
end
end

Answer 1

class User < ApplicationRecord
attr_accessor :password_confirmation, :skip_password_validation
validates :password, :presence => true ,unless: :skip_password_validation
validates_confirmation_of :password, :if => ->{ password.present? },unless: :skip_password_validation
def User.digest(string)
cost = ActiveModel::SecurePassword.min_cost ? BCrypt::Engine::MIN_COST :
BCrypt::Engine.cost
BCrypt::Password.create(string, cost: cost)
end
def self.from_omniauth(auth)
where(provider: auth.provider, uid: auth.uid).first_or_create do |user|
user.provider = auth.provider
user.uid = auth.uid
user.name = auth.info.name
user.oauth_token = auth.credentials.token
user.oauth_expires_at = Time.at(auth.credentials.expires_at)
user.save!
end
end
end
def create
user = User.from_omniauth(env["omniauth.auth"])
#######try this #####
user.skip_password_validation = true
####or try this ####
user.from_omniauth.skip_name_validation = true
unless user.present?
user = User.find_by(email: params[:session][:email].downcase)
if user && user.authenticate(params[:session][:password])
log_in user
redirect_to user
# Log the user in and redirect to the user's show page.
else
# Create an error message.
flash.now[:danger] = 'Invalid email/password combination'
render 'new'
end
else
log_in user
redirect_to user
end
end