Retrospring/app/models/user.rb

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class User < ActiveRecord::Base
# Include default devise modules. Others available are:
# :confirmable, :lockable, :timeoutable and :omniauthable
devise :database_authenticatable, :registerable,
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:recoverable, :rememberable, :trackable,
:validatable, :authentication_keys => [:login]
# attr_accessor :login
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has_many :questions, dependent: :destroy
has_many :answers, dependent: :destroy
has_many :comments, dependent: :destroy
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SCREEN_NAME_REGEX = /\A[a-zA-Z0-9_]{1,16}\z/
validates :screen_name, presence: true, format: { with: SCREEN_NAME_REGEX }, uniqueness: { case_sensitive: false }
def login=(login)
@login = login
end
def login
@login || self.screen_name || self.email
end
def self.find_first_by_auth_conditions(warden_conditions)
conditions = warden_conditions.dup
if login = conditions.delete(:login)
where(conditions).where(["lower(screen_name) = :value OR lower(email) = :value", { :value => login.downcase }]).first
else
where(conditions).first
end
end
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end